blue-twilight/public/js/blue-twilight.js

/*!
 * jQuery JavaScript Library v3.2.0
 * https://jquery.com/
 *
 * Includes Sizzle.js
 * https://sizzlejs.com/
 *
 * Copyright JS Foundation and other contributors
 * Released under the MIT license
 * https://jquery.org/license
 *
 * Date: 2017-03-16T21:26Z
 */
( function( global, factory ) {

	"use strict";

	if ( typeof module === "object" && typeof module.exports === "object" ) {

		// For CommonJS and CommonJS-like environments where a proper `window`
		// is present, execute the factory and get jQuery.
		// For environments that do not have a `window` with a `document`
		// (such as Node.js), expose a factory as module.exports.
		// This accentuates the need for the creation of a real `window`.
		// e.g. var jQuery = require("jquery")(window);
		// See ticket #14549 for more info.
		module.exports = global.document ?
			factory( global, true ) :
			function( w ) {
				if ( !w.document ) {
					throw new Error( "jQuery requires a window with a document" );
				}
				return factory( w );
			};
	} else {
		factory( global );
	}

// Pass this if window is not defined yet
} )( typeof window !== "undefined" ? window : this, function( window, noGlobal ) {

// Edge <= 12 - 13+, Firefox <=18 - 45+, IE 10 - 11, Safari 5.1 - 9+, iOS 6 - 9.1
// throw exceptions when non-strict code (e.g., ASP.NET 4.5) accesses strict mode
// arguments.callee.caller (trac-13335). But as of jQuery 3.0 (2016), strict mode should be common
// enough that all such attempts are guarded in a try block.
"use strict";

var arr = [];

var document = window.document;

var getProto = Object.getPrototypeOf;

var slice = arr.slice;

var concat = arr.concat;

var push = arr.push;

var indexOf = arr.indexOf;

var class2type = {};

var toString = class2type.toString;

var hasOwn = class2type.hasOwnProperty;

var fnToString = hasOwn.toString;

var ObjectFunctionString = fnToString.call( Object );

var support = {};



	function DOMEval( code, doc ) {
		doc = doc || document;

		var script = doc.createElement( "script" );

		script.text = code;
		doc.head.appendChild( script ).parentNode.removeChild( script );
	}
/* global Symbol */
// Defining this global in .eslintrc.json would create a danger of using the global
// unguarded in another place, it seems safer to define global only for this module



var
	version = "3.2.0",

	// Define a local copy of jQuery
	jQuery = function( selector, context ) {

		// The jQuery object is actually just the init constructor 'enhanced'
		// Need init if jQuery is called (just allow error to be thrown if not included)
		return new jQuery.fn.init( selector, context );
	},

	// Support: Android <=4.0 only
	// Make sure we trim BOM and NBSP
	rtrim = /^[\s\uFEFF\xA0]+|[\s\uFEFF\xA0]+$/g,

	// Matches dashed string for camelizing
	rmsPrefix = /^-ms-/,
	rdashAlpha = /-([a-z])/g,

	// Used by jQuery.camelCase as callback to replace()
	fcamelCase = function( all, letter ) {
		return letter.toUpperCase();
	};

jQuery.fn = jQuery.prototype = {

	// The current version of jQuery being used
	jquery: version,

	constructor: jQuery,

	// The default length of a jQuery object is 0
	length: 0,

	toArray: function() {
		return slice.call( this );
	},

	// Get the Nth element in the matched element set OR
	// Get the whole matched element set as a clean array
	get: function( num ) {

		// Return all the elements in a clean array
		if ( num == null ) {
			return slice.call( this );
		}

		// Return just the one element from the set
		return num < 0 ? this[ num + this.length ] : this[ num ];
	},

	// Take an array of elements and push it onto the stack
	// (returning the new matched element set)
	pushStack: function( elems ) {

		// Build a new jQuery matched element set
		var ret = jQuery.merge( this.constructor(), elems );

		// Add the old object onto the stack (as a reference)
		ret.prevObject = this;

		// Return the newly-formed element set
		return ret;
	},

	// Execute a callback for every element in the matched set.
	each: function( callback ) {
		return jQuery.each( this, callback );
	},

	map: function( callback ) {
		return this.pushStack( jQuery.map( this, function( elem, i ) {
			return callback.call( elem, i, elem );
		} ) );
	},

	slice: function() {
		return this.pushStack( slice.apply( this, arguments ) );
	},

	first: function() {
		return this.eq( 0 );
	},

	last: function() {
		return this.eq( -1 );
	},

	eq: function( i ) {
		var len = this.length,
			j = +i + ( i < 0 ? len : 0 );
		return this.pushStack( j >= 0 && j < len ? [ this[ j ] ] : [] );
	},

	end: function() {
		return this.prevObject || this.constructor();
	},

	// For internal use only.
	// Behaves like an Array's method, not like a jQuery method.
	push: push,
	sort: arr.sort,
	splice: arr.splice
};

jQuery.extend = jQuery.fn.extend = function() {
	var options, name, src, copy, copyIsArray, clone,
		target = arguments[ 0 ] || {},
		i = 1,
		length = arguments.length,
		deep = false;

	// Handle a deep copy situation
	if ( typeof target === "boolean" ) {
		deep = target;

		// Skip the boolean and the target
		target = arguments[ i ] || {};
		i++;
	}

	// Handle case when target is a string or something (possible in deep copy)
	if ( typeof target !== "object" && !jQuery.isFunction( target ) ) {
		target = {};
	}

	// Extend jQuery itself if only one argument is passed
	if ( i === length ) {
		target = this;
		i--;
	}

	for ( ; i < length; i++ ) {

		// Only deal with non-null/undefined values
		if ( ( options = arguments[ i ] ) != null ) {

			// Extend the base object
			for ( name in options ) {
				src = target[ name ];
				copy = options[ name ];

				// Prevent never-ending loop
				if ( target === copy ) {
					continue;
				}

				// Recurse if we're merging plain objects or arrays
				if ( deep && copy && ( jQuery.isPlainObject( copy ) ||
					( copyIsArray = Array.isArray( copy ) ) ) ) {

					if ( copyIsArray ) {
						copyIsArray = false;
						clone = src && Array.isArray( src ) ? src : [];

					} else {
						clone = src && jQuery.isPlainObject( src ) ? src : {};
					}

					// Never move original objects, clone them
					target[ name ] = jQuery.extend( deep, clone, copy );

				// Don't bring in undefined values
				} else if ( copy !== undefined ) {
					target[ name ] = copy;
				}
			}
		}
	}

	// Return the modified object
	return target;
};

jQuery.extend( {

	// Unique for each copy of jQuery on the page
	expando: "jQuery" + ( version + Math.random() ).replace( /\D/g, "" ),

	// Assume jQuery is ready without the ready module
	isReady: true,

	error: function( msg ) {
		throw new Error( msg );
	},

	noop: function() {},

	isFunction: function( obj ) {
		return jQuery.type( obj ) === "function";
	},

	isWindow: function( obj ) {
		return obj != null && obj === obj.window;
	},

	isNumeric: function( obj ) {

		// As of jQuery 3.0, isNumeric is limited to
		// strings and numbers (primitives or objects)
		// that can be coerced to finite numbers (gh-2662)
		var type = jQuery.type( obj );
		return ( type === "number" || type === "string" ) &&

			// parseFloat NaNs numeric-cast false positives ("")
			// ...but misinterprets leading-number strings, particularly hex literals ("0x...")
			// subtraction forces infinities to NaN
			!isNaN( obj - parseFloat( obj ) );
	},

	isPlainObject: function( obj ) {
		var proto, Ctor;

		// Detect obvious negatives
		// Use toString instead of jQuery.type to catch host objects
		if ( !obj || toString.call( obj ) !== "[object Object]" ) {
			return false;
		}

		proto = getProto( obj );

		// Objects with no prototype (e.g., `Object.create( null )`) are plain
		if ( !proto ) {
			return true;
		}

		// Objects with prototype are plain iff they were constructed by a global Object function
		Ctor = hasOwn.call( proto, "constructor" ) && proto.constructor;
		return typeof Ctor === "function" && fnToString.call( Ctor ) === ObjectFunctionString;
	},

	isEmptyObject: function( obj ) {

		/* eslint-disable no-unused-vars */
		// See https://github.com/eslint/eslint/issues/6125
		var name;

		for ( name in obj ) {
			return false;
		}
		return true;
	},

	type: function( obj ) {
		if ( obj == null ) {
			return obj + "";
		}

		// Support: Android <=2.3 only (functionish RegExp)
		return typeof obj === "object" || typeof obj === "function" ?
			class2type[ toString.call( obj ) ] || "object" :
			typeof obj;
	},

	// Evaluates a script in a global context
	globalEval: function( code ) {
		DOMEval( code );
	},

	// Convert dashed to camelCase; used by the css and data modules
	// Support: IE <=9 - 11, Edge 12 - 13
	// Microsoft forgot to hump their vendor prefix (#9572)
	camelCase: function( string ) {
		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
	},

	each: function( obj, callback ) {
		var length, i = 0;

		if ( isArrayLike( obj ) ) {
			length = obj.length;
			for ( ; i < length; i++ ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		} else {
			for ( i in obj ) {
				if ( callback.call( obj[ i ], i, obj[ i ] ) === false ) {
					break;
				}
			}
		}

		return obj;
	},

	// Support: Android <=4.0 only
	trim: function( text ) {
		return text == null ?
			"" :
			( text + "" ).replace( rtrim, "" );
	},

	// results is for internal usage only
	makeArray: function( arr, results ) {
		var ret = results || [];

		if ( arr != null ) {
			if ( isArrayLike( Object( arr ) ) ) {
				jQuery.merge( ret,
					typeof arr === "string" ?
					[ arr ] : arr
				);
			} else {
				push.call( ret, arr );
			}
		}

		return ret;
	},

	inArray: function( elem, arr, i ) {
		return arr == null ? -1 : indexOf.call( arr, elem, i );
	},

	// Support: Android <=4.0 only, PhantomJS 1 only
	// push.apply(_, arraylike) throws on ancient WebKit
	merge: function( first, second ) {
		var len = +second.length,
			j = 0,
			i = first.length;

		for ( ; j < len; j++ ) {
			first[ i++ ] = second[ j ];
		}

		first.length = i;

		return first;
	},

	grep: function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
	},

	// arg is for internal usage only
	map: function( elems, callback, arg ) {
		var length, value,
			i = 0,
			ret = [];

		// Go through the array, translating each of the items to their new values
		if ( isArrayLike( elems ) ) {
			length = elems.length;
			for ( ; i < length; i++ ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}

		// Go through every key on the object,
		} else {
			for ( i in elems ) {
				value = callback( elems[ i ], i, arg );

				if ( value != null ) {
					ret.push( value );
				}
			}
		}

		// Flatten any nested arrays
		return concat.apply( [], ret );
	},

	// A global GUID counter for objects
	guid: 1,

	// Bind a function to a context, optionally partially applying any
	// arguments.
	proxy: function( fn, context ) {
		var tmp, args, proxy;

		if ( typeof context === "string" ) {
			tmp = fn[ context ];
			context = fn;
			fn = tmp;
		}

		// Quick check to determine if target is callable, in the spec
		// this throws a TypeError, but we will just return undefined.
		if ( !jQuery.isFunction( fn ) ) {
			return undefined;
		}

		// Simulated bind
		args = slice.call( arguments, 2 );
		proxy = function() {
			return fn.apply( context || this, args.concat( slice.call( arguments ) ) );
		};

		// Set the guid of unique handler to the same of original handler, so it can be removed
		proxy.guid = fn.guid = fn.guid || jQuery.guid++;

		return proxy;
	},

	now: Date.now,

	// jQuery.support is not used in Core but other projects attach their
	// properties to it so it needs to exist.
	support: support
} );

if ( typeof Symbol === "function" ) {
	jQuery.fn[ Symbol.iterator ] = arr[ Symbol.iterator ];
}

// Populate the class2type map
jQuery.each( "Boolean Number String Function Array Date RegExp Object Error Symbol".split( " " ),
function( i, name ) {
	class2type[ "[object " + name + "]" ] = name.toLowerCase();
} );

function isArrayLike( obj ) {

	// Support: real iOS 8.2 only (not reproducible in simulator)
	// `in` check used to prevent JIT error (gh-2145)
	// hasOwn isn't used here due to false negatives
	// regarding Nodelist length in IE
	var length = !!obj && "length" in obj && obj.length,
		type = jQuery.type( obj );

	if ( type === "function" || jQuery.isWindow( obj ) ) {
		return false;
	}

	return type === "array" || length === 0 ||
		typeof length === "number" && length > 0 && ( length - 1 ) in obj;
}
var Sizzle =
/*!
 * Sizzle CSS Selector Engine v2.3.3
 * https://sizzlejs.com/
 *
 * Copyright jQuery Foundation and other contributors
 * Released under the MIT license
 * http://jquery.org/license
 *
 * Date: 2016-08-08
 */
(function( window ) {

var i,
	support,
	Expr,
	getText,
	isXML,
	tokenize,
	compile,
	select,
	outermostContext,
	sortInput,
	hasDuplicate,

	// Local document vars
	setDocument,
	document,
	docElem,
	documentIsHTML,
	rbuggyQSA,
	rbuggyMatches,
	matches,
	contains,

	// Instance-specific data
	expando = "sizzle" + 1 * new Date(),
	preferredDoc = window.document,
	dirruns = 0,
	done = 0,
	classCache = createCache(),
	tokenCache = createCache(),
	compilerCache = createCache(),
	sortOrder = function( a, b ) {
		if ( a === b ) {
			hasDuplicate = true;
		}
		return 0;
	},

	// Instance methods
	hasOwn = ({}).hasOwnProperty,
	arr = [],
	pop = arr.pop,
	push_native = arr.push,
	push = arr.push,
	slice = arr.slice,
	// Use a stripped-down indexOf as it's faster than native
	// https://jsperf.com/thor-indexof-vs-for/5
	indexOf = function( list, elem ) {
		var i = 0,
			len = list.length;
		for ( ; i < len; i++ ) {
			if ( list[i] === elem ) {
				return i;
			}
		}
		return -1;
	},

	booleans = "checked|selected|async|autofocus|autoplay|controls|defer|disabled|hidden|ismap|loop|multiple|open|readonly|required|scoped",

	// Regular expressions

	// http://www.w3.org/TR/css3-selectors/#whitespace
	whitespace = "[\\x20\\t\\r\\n\\f]",

	// http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier
	identifier = "(?:\\\\.|[\\w-]|[^\0-\\xa0])+",

	// Attribute selectors: http://www.w3.org/TR/selectors/#attribute-selectors
	attributes = "\\[" + whitespace + "*(" + identifier + ")(?:" + whitespace +
		// Operator (capture 2)
		"*([*^$|!~]?=)" + whitespace +
		// "Attribute values must be CSS identifiers [capture 5] or strings [capture 3 or capture 4]"
		"*(?:'((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\"|(" + identifier + "))|)" + whitespace +
		"*\\]",

	pseudos = ":(" + identifier + ")(?:\\((" +
		// To reduce the number of selectors needing tokenize in the preFilter, prefer arguments:
		// 1. quoted (capture 3; capture 4 or capture 5)
		"('((?:\\\\.|[^\\\\'])*)'|\"((?:\\\\.|[^\\\\\"])*)\")|" +
		// 2. simple (capture 6)
		"((?:\\\\.|[^\\\\()[\\]]|" + attributes + ")*)|" +
		// 3. anything else (capture 2)
		".*" +
		")\\)|)",

	// Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter
	rwhitespace = new RegExp( whitespace + "+", "g" ),
	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),

	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),

	rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*?)" + whitespace + "*\\]", "g" ),

	rpseudo = new RegExp( pseudos ),
	ridentifier = new RegExp( "^" + identifier + "$" ),

	matchExpr = {
		"ID": new RegExp( "^#(" + identifier + ")" ),
		"CLASS": new RegExp( "^\\.(" + identifier + ")" ),
		"TAG": new RegExp( "^(" + identifier + "|[*])" ),
		"ATTR": new RegExp( "^" + attributes ),
		"PSEUDO": new RegExp( "^" + pseudos ),
		"CHILD": new RegExp( "^:(only|first|last|nth|nth-last)-(child|of-type)(?:\\(" + whitespace +
			"*(even|odd|(([+-]|)(\\d*)n|)" + whitespace + "*(?:([+-]|)" + whitespace +
			"*(\\d+)|))" + whitespace + "*\\)|)", "i" ),
		"bool": new RegExp( "^(?:" + booleans + ")$", "i" ),
		// For use in libraries implementing .is()
		// We use this for POS matching in `select`
		"needsContext": new RegExp( "^" + whitespace + "*[>+~]|:(even|odd|eq|gt|lt|nth|first|last)(?:\\(" +
			whitespace + "*((?:-\\d)?\\d*)" + whitespace + "*\\)|)(?=[^-]|$)", "i" )
	},

	rinputs = /^(?:input|select|textarea|button)$/i,
	rheader = /^h\d$/i,

	rnative = /^[^{]+\{\s*\[native \w/,

	// Easily-parseable/retrievable ID or TAG or CLASS selectors
	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,

	rsibling = /[+~]/,

	// CSS escapes
	// http://www.w3.org/TR/CSS21/syndata.html#escaped-characters
	runescape = new RegExp( "\\\\([\\da-f]{1,6}" + whitespace + "?|(" + whitespace + ")|.)", "ig" ),
	funescape = function( _, escaped, escapedWhitespace ) {
		var high = "0x" + escaped - 0x10000;
		// NaN means non-codepoint
		// Support: Firefox<24
		// Workaround erroneous numeric interpretation of +"0x"
		return high !== high || escapedWhitespace ?
			escaped :
			high < 0 ?
				// BMP codepoint
				String.fromCharCode( high + 0x10000 ) :
				// Supplemental Plane codepoint (surrogate pair)
				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
	},

	// CSS string/identifier serialization
	// https://drafts.csswg.org/cssom/#common-serializing-idioms
	rcssescape = /([\0-\x1f\x7f]|^-?\d)|^-$|[^\0-\x1f\x7f-\uFFFF\w-]/g,
	fcssescape = function( ch, asCodePoint ) {
		if ( asCodePoint ) {

			// U+0000 NULL becomes U+FFFD REPLACEMENT CHARACTER
			if ( ch === "\0" ) {
				return "\uFFFD";
			}

			// Control characters and (dependent upon position) numbers get escaped as code points
			return ch.slice( 0, -1 ) + "\\" + ch.charCodeAt( ch.length - 1 ).toString( 16 ) + " ";
		}

		// Other potentially-special ASCII characters get backslash-escaped
		return "\\" + ch;
	},

	// Used for iframes
	// See setDocument()
	// Removing the function wrapper causes a "Permission Denied"
	// error in IE
	unloadHandler = function() {
		setDocument();
	},

	disabledAncestor = addCombinator(
		function( elem ) {
			return elem.disabled === true && ("form" in elem || "label" in elem);
		},
		{ dir: "parentNode", next: "legend" }
	);

// Optimize for push.apply( _, NodeList )
try {
	push.apply(
		(arr = slice.call( preferredDoc.childNodes )),
		preferredDoc.childNodes
	);
	// Support: Android<4.0
	// Detect silently failing push.apply
	arr[ preferredDoc.childNodes.length ].nodeType;
} catch ( e ) {
	push = { apply: arr.length ?

		// Leverage slice if possible
		function( target, els ) {
			push_native.apply( target, slice.call(els) );
		} :

		// Support: IE<9
		// Otherwise append directly
		function( target, els ) {
			var j = target.length,
				i = 0;
			// Can't trust NodeList.length
			while ( (target[j++] = els[i++]) ) {}
			target.length = j - 1;
		}
	};
}

function Sizzle( selector, context, results, seed ) {
	var m, i, elem, nid, match, groups, newSelector,
		newContext = context && context.ownerDocument,

		// nodeType defaults to 9, since context defaults to document
		nodeType = context ? context.nodeType : 9;

	results = results || [];

	// Return early from calls with invalid selector or context
	if ( typeof selector !== "string" || !selector ||
		nodeType !== 1 && nodeType !== 9 && nodeType !== 11 ) {

		return results;
	}

	// Try to shortcut find operations (as opposed to filters) in HTML documents
	if ( !seed ) {

		if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
			setDocument( context );
		}
		context = context || document;

		if ( documentIsHTML ) {

			// If the selector is sufficiently simple, try using a "get*By*" DOM method
			// (excepting DocumentFragment context, where the methods don't exist)
			if ( nodeType !== 11 && (match = rquickExpr.exec( selector )) ) {

				// ID selector
				if ( (m = match[1]) ) {

					// Document context
					if ( nodeType === 9 ) {
						if ( (elem = context.getElementById( m )) ) {

							// Support: IE, Opera, Webkit
							// TODO: identify versions
							// getElementById can match elements by name instead of ID
							if ( elem.id === m ) {
								results.push( elem );
								return results;
							}
						} else {
							return results;
						}

					// Element context
					} else {

						// Support: IE, Opera, Webkit
						// TODO: identify versions
						// getElementById can match elements by name instead of ID
						if ( newContext && (elem = newContext.getElementById( m )) &&
							contains( context, elem ) &&
							elem.id === m ) {

							results.push( elem );
							return results;
						}
					}

				// Type selector
				} else if ( match[2] ) {
					push.apply( results, context.getElementsByTagName( selector ) );
					return results;

				// Class selector
				} else if ( (m = match[3]) && support.getElementsByClassName &&
					context.getElementsByClassName ) {

					push.apply( results, context.getElementsByClassName( m ) );
					return results;
				}
			}

			// Take advantage of querySelectorAll
			if ( support.qsa &&
				!compilerCache[ selector + " " ] &&
				(!rbuggyQSA || !rbuggyQSA.test( selector )) ) {

				if ( nodeType !== 1 ) {
					newContext = context;
					newSelector = selector;

				// qSA looks outside Element context, which is not what we want
				// Thanks to Andrew Dupont for this workaround technique
				// Support: IE <=8
				// Exclude object elements
				} else if ( context.nodeName.toLowerCase() !== "object" ) {

					// Capture the context ID, setting it first if necessary
					if ( (nid = context.getAttribute( "id" )) ) {
						nid = nid.replace( rcssescape, fcssescape );
					} else {
						context.setAttribute( "id", (nid = expando) );
					}

					// Prefix every selector in the list
					groups = tokenize( selector );
					i = groups.length;
					while ( i-- ) {
						groups[i] = "#" + nid + " " + toSelector( groups[i] );
					}
					newSelector = groups.join( "," );

					// Expand context for sibling selectors
					newContext = rsibling.test( selector ) && testContext( context.parentNode ) ||
						context;
				}

				if ( newSelector ) {
					try {
						push.apply( results,
							newContext.querySelectorAll( newSelector )
						);
						return results;
					} catch ( qsaError ) {
					} finally {
						if ( nid === expando ) {
							context.removeAttribute( "id" );
						}
					}
				}
			}
		}
	}

	// All others
	return select( selector.replace( rtrim, "$1" ), context, results, seed );
}

/**
 * Create key-value caches of limited size
 * @returns {function(string, object)} Returns the Object data after storing it on itself with
 *	property name the (space-suffixed) string and (if the cache is larger than Expr.cacheLength)
 *	deleting the oldest entry
 */
function createCache() {
	var keys = [];

	function cache( key, value ) {
		// Use (key + " ") to avoid collision with native prototype properties (see Issue #157)
		if ( keys.push( key + " " ) > Expr.cacheLength ) {
			// Only keep the most recent entries
			delete cache[ keys.shift() ];
		}
		return (cache[ key + " " ] = value);
	}
	return cache;
}

/**
 * Mark a function for special use by Sizzle
 * @param {Function} fn The function to mark
 */
function markFunction( fn ) {
	fn[ expando ] = true;
	return fn;
}

/**
 * Support testing using an element
 * @param {Function} fn Passed the created element and returns a boolean result
 */
function assert( fn ) {
	var el = document.createElement("fieldset");

	try {
		return !!fn( el );
	} catch (e) {
		return false;
	} finally {
		// Remove from its parent by default
		if ( el.parentNode ) {
			el.parentNode.removeChild( el );
		}
		// release memory in IE
		el = null;
	}
}

/**
 * Adds the same handler for all of the specified attrs
 * @param {String} attrs Pipe-separated list of attributes
 * @param {Function} handler The method that will be applied
 */
function addHandle( attrs, handler ) {
	var arr = attrs.split("|"),
		i = arr.length;

	while ( i-- ) {
		Expr.attrHandle[ arr[i] ] = handler;
	}
}

/**
 * Checks document order of two siblings
 * @param {Element} a
 * @param {Element} b
 * @returns {Number} Returns less than 0 if a precedes b, greater than 0 if a follows b
 */
function siblingCheck( a, b ) {
	var cur = b && a,
		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
			a.sourceIndex - b.sourceIndex;

	// Use IE sourceIndex if available on both nodes
	if ( diff ) {
		return diff;
	}

	// Check if b follows a
	if ( cur ) {
		while ( (cur = cur.nextSibling) ) {
			if ( cur === b ) {
				return -1;
			}
		}
	}

	return a ? 1 : -1;
}

/**
 * Returns a function to use in pseudos for input types
 * @param {String} type
 */
function createInputPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return name === "input" && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for buttons
 * @param {String} type
 */
function createButtonPseudo( type ) {
	return function( elem ) {
		var name = elem.nodeName.toLowerCase();
		return (name === "input" || name === "button") && elem.type === type;
	};
}

/**
 * Returns a function to use in pseudos for :enabled/:disabled
 * @param {Boolean} disabled true for :disabled; false for :enabled
 */
function createDisabledPseudo( disabled ) {

	// Known :disabled false positives: fieldset[disabled] > legend:nth-of-type(n+2) :can-disable
	return function( elem ) {

		// Only certain elements can match :enabled or :disabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-enabled
		// https://html.spec.whatwg.org/multipage/scripting.html#selector-disabled
		if ( "form" in elem ) {

			// Check for inherited disabledness on relevant non-disabled elements:
			// * listed form-associated elements in a disabled fieldset
			//   https://html.spec.whatwg.org/multipage/forms.html#category-listed
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-fe-disabled
			// * option elements in a disabled optgroup
			//   https://html.spec.whatwg.org/multipage/forms.html#concept-option-disabled
			// All such elements have a "form" property.
			if ( elem.parentNode && elem.disabled === false ) {

				// Option elements defer to a parent optgroup if present
				if ( "label" in elem ) {
					if ( "label" in elem.parentNode ) {
						return elem.parentNode.disabled === disabled;
					} else {
						return elem.disabled === disabled;
					}
				}

				// Support: IE 6 - 11
				// Use the isDisabled shortcut property to check for disabled fieldset ancestors
				return elem.isDisabled === disabled ||

					// Where there is no isDisabled, check manually
					/* jshint -W018 */
					elem.isDisabled !== !disabled &&
						disabledAncestor( elem ) === disabled;
			}

			return elem.disabled === disabled;

		// Try to winnow out elements that can't be disabled before trusting the disabled property.
		// Some victims get caught in our net (label, legend, menu, track), but it shouldn't
		// even exist on them, let alone have a boolean value.
		} else if ( "label" in elem ) {
			return elem.disabled === disabled;
		}

		// Remaining elements are neither :enabled nor :disabled
		return false;
	};
}

/**
 * Returns a function to use in pseudos for positionals
 * @param {Function} fn
 */
function createPositionalPseudo( fn ) {
	return markFunction(function( argument ) {
		argument = +argument;
		return markFunction(function( seed, matches ) {
			var j,
				matchIndexes = fn( [], seed.length, argument ),
				i = matchIndexes.length;

			// Match elements found at the specified indexes
			while ( i-- ) {
				if ( seed[ (j = matchIndexes[i]) ] ) {
					seed[j] = !(matches[j] = seed[j]);
				}
			}
		});
	});
}

/**
 * Checks a node for validity as a Sizzle context
 * @param {Element|Object=} context
 * @returns {Element|Object|Boolean} The input node if acceptable, otherwise a falsy value
 */
function testContext( context ) {
	return context && typeof context.getElementsByTagName !== "undefined" && context;
}

// Expose support vars for convenience
support = Sizzle.support = {};

/**
 * Detects XML nodes
 * @param {Element|Object} elem An element or a document
 * @returns {Boolean} True iff elem is a non-HTML XML node
 */
isXML = Sizzle.isXML = function( elem ) {
	// documentElement is verified for cases where it doesn't yet exist
	// (such as loading iframes in IE - #4833)
	var documentElement = elem && (elem.ownerDocument || elem).documentElement;
	return documentElement ? documentElement.nodeName !== "HTML" : false;
};

/**
 * Sets document-related variables once based on the current document
 * @param {Element|Object} [doc] An element or document object to use to set the document
 * @returns {Object} Returns the current document
 */
setDocument = Sizzle.setDocument = function( node ) {
	var hasCompare, subWindow,
		doc = node ? node.ownerDocument || node : preferredDoc;

	// Return early if doc is invalid or already selected
	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
		return document;
	}

	// Update global variables
	document = doc;
	docElem = document.documentElement;
	documentIsHTML = !isXML( document );

	// Support: IE 9-11, Edge
	// Accessing iframe documents after unload throws "permission denied" errors (jQuery #13936)
	if ( preferredDoc !== document &&
		(subWindow = document.defaultView) && subWindow.top !== subWindow ) {

		// Support: IE 11, Edge
		if ( subWindow.addEventListener ) {
			subWindow.addEventListener( "unload", unloadHandler, false );

		// Support: IE 9 - 10 only
		} else if ( subWindow.attachEvent ) {
			subWindow.attachEvent( "onunload", unloadHandler );
		}
	}

	/* Attributes
	---------------------------------------------------------------------- */

	// Support: IE<8
	// Verify that getAttribute really returns attributes and not properties
	// (excepting IE8 booleans)
	support.attributes = assert(function( el ) {
		el.className = "i";
		return !el.getAttribute("className");
	});

	/* getElement(s)By*
	---------------------------------------------------------------------- */

	// Check if getElementsByTagName("*") returns only elements
	support.getElementsByTagName = assert(function( el ) {
		el.appendChild( document.createComment("") );
		return !el.getElementsByTagName("*").length;
	});

	// Support: IE<9
	support.getElementsByClassName = rnative.test( document.getElementsByClassName );

	// Support: IE<10
	// Check if getElementById returns elements by name
	// The broken getElementById methods don't pick up programmatically-set names,
	// so use a roundabout getElementsByName test
	support.getById = assert(function( el ) {
		docElem.appendChild( el ).id = expando;
		return !document.getElementsByName || !document.getElementsByName( expando ).length;
	});

	// ID filter and find
	if ( support.getById ) {
		Expr.filter["ID"] = function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				return elem.getAttribute("id") === attrId;
			};
		};
		Expr.find["ID"] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var elem = context.getElementById( id );
				return elem ? [ elem ] : [];
			}
		};
	} else {
		Expr.filter["ID"] =  function( id ) {
			var attrId = id.replace( runescape, funescape );
			return function( elem ) {
				var node = typeof elem.getAttributeNode !== "undefined" &&
					elem.getAttributeNode("id");
				return node && node.value === attrId;
			};
		};

		// Support: IE 6 - 7 only
		// getElementById is not reliable as a find shortcut
		Expr.find["ID"] = function( id, context ) {
			if ( typeof context.getElementById !== "undefined" && documentIsHTML ) {
				var node, i, elems,
					elem = context.getElementById( id );

				if ( elem ) {

					// Verify the id attribute
					node = elem.getAttributeNode("id");
					if ( node && node.value === id ) {
						return [ elem ];
					}

					// Fall back on getElementsByName
					elems = context.getElementsByName( id );
					i = 0;
					while ( (elem = elems[i++]) ) {
						node = elem.getAttributeNode("id");
						if ( node && node.value === id ) {
							return [ elem ];
						}
					}
				}

				return [];
			}
		};
	}

	// Tag
	Expr.find["TAG"] = support.getElementsByTagName ?
		function( tag, context ) {
			if ( typeof context.getElementsByTagName !== "undefined" ) {
				return context.getElementsByTagName( tag );

			// DocumentFragment nodes don't have gEBTN
			} else if ( support.qsa ) {
				return context.querySelectorAll( tag );
			}
		} :

		function( tag, context ) {
			var elem,
				tmp = [],
				i = 0,
				// By happy coincidence, a (broken) gEBTN appears on DocumentFragment nodes too
				results = context.getElementsByTagName( tag );

			// Filter out possible comments
			if ( tag === "*" ) {
				while ( (elem = results[i++]) ) {
					if ( elem.nodeType === 1 ) {
						tmp.push( elem );
					}
				}

				return tmp;
			}
			return results;
		};

	// Class
	Expr.find["CLASS"] = support.getElementsByClassName && function( className, context ) {
		if ( typeof context.getElementsByClassName !== "undefined" && documentIsHTML ) {
			return context.getElementsByClassName( className );
		}
	};

	/* QSA/matchesSelector
	---------------------------------------------------------------------- */

	// QSA and matchesSelector support

	// matchesSelector(:active) reports false when true (IE9/Opera 11.5)
	rbuggyMatches = [];

	// qSa(:focus) reports false when true (Chrome 21)
	// We allow this because of a bug in IE8/9 that throws an error
	// whenever `document.activeElement` is accessed on an iframe
	// So, we allow :focus to pass through QSA all the time to avoid the IE error
	// See https://bugs.jquery.com/ticket/13378
	rbuggyQSA = [];

	if ( (support.qsa = rnative.test( document.querySelectorAll )) ) {
		// Build QSA regex
		// Regex strategy adopted from Diego Perini
		assert(function( el ) {
			// Select is set to empty string on purpose
			// This is to test IE's treatment of not explicitly
			// setting a boolean content attribute,
			// since its presence should be enough
			// https://bugs.jquery.com/ticket/12359
			docElem.appendChild( el ).innerHTML = "<a id='" + expando + "'></a>" +
				"<select id='" + expando + "-\r\\' msallowcapture=''>" +
				"<option selected=''></option></select>";

			// Support: IE8, Opera 11-12.16
			// Nothing should be selected when empty strings follow ^= or $= or *=
			// The test attribute must be unknown in Opera but "safe" for WinRT
			// https://msdn.microsoft.com/en-us/library/ie/hh465388.aspx#attribute_section
			if ( el.querySelectorAll("[msallowcapture^='']").length ) {
				rbuggyQSA.push( "[*^$]=" + whitespace + "*(?:''|\"\")" );
			}

			// Support: IE8
			// Boolean attributes and "value" are not treated correctly
			if ( !el.querySelectorAll("[selected]").length ) {
				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
			}

			// Support: Chrome<29, Android<4.4, Safari<7.0+, iOS<7.0+, PhantomJS<1.9.8+
			if ( !el.querySelectorAll( "[id~=" + expando + "-]" ).length ) {
				rbuggyQSA.push("~=");
			}

			// Webkit/Opera - :checked should return selected option elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			// IE8 throws error here and will not see later tests
			if ( !el.querySelectorAll(":checked").length ) {
				rbuggyQSA.push(":checked");
			}

			// Support: Safari 8+, iOS 8+
			// https://bugs.webkit.org/show_bug.cgi?id=136851
			// In-page `selector#id sibling-combinator selector` fails
			if ( !el.querySelectorAll( "a#" + expando + "+*" ).length ) {
				rbuggyQSA.push(".#.+[+~]");
			}
		});

		assert(function( el ) {
			el.innerHTML = "<a href='' disabled='disabled'></a>" +
				"<select disabled='disabled'><option/></select>";

			// Support: Windows 8 Native Apps
			// The type and name attributes are restricted during .innerHTML assignment
			var input = document.createElement("input");
			input.setAttribute( "type", "hidden" );
			el.appendChild( input ).setAttribute( "name", "D" );

			// Support: IE8
			// Enforce case-sensitivity of name attribute
			if ( el.querySelectorAll("[name=d]").length ) {
				rbuggyQSA.push( "name" + whitespace + "*[*^$|!~]?=" );
			}

			// FF 3.5 - :enabled/:disabled and hidden elements (hidden elements are still enabled)
			// IE8 throws error here and will not see later tests
			if ( el.querySelectorAll(":enabled").length !== 2 ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Support: IE9-11+
			// IE's :disabled selector does not pick up the children of disabled fieldsets
			docElem.appendChild( el ).disabled = true;
			if ( el.querySelectorAll(":disabled").length !== 2 ) {
				rbuggyQSA.push( ":enabled", ":disabled" );
			}

			// Opera 10-11 does not throw on post-comma invalid pseudos
			el.querySelectorAll("*,:x");
			rbuggyQSA.push(",.*:");
		});
	}

	if ( (support.matchesSelector = rnative.test( (matches = docElem.matches ||
		docElem.webkitMatchesSelector ||
		docElem.mozMatchesSelector ||
		docElem.oMatchesSelector ||
		docElem.msMatchesSelector) )) ) {

		assert(function( el ) {
			// Check to see if it's possible to do matchesSelector
			// on a disconnected node (IE 9)
			support.disconnectedMatch = matches.call( el, "*" );

			// This should fail with an exception
			// Gecko does not error, returns false instead
			matches.call( el, "[s!='']:x" );
			rbuggyMatches.push( "!=", pseudos );
		});
	}

	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );

	/* Contains
	---------------------------------------------------------------------- */
	hasCompare = rnative.test( docElem.compareDocumentPosition );

	// Element contains another
	// Purposefully self-exclusive
	// As in, an element does not contain itself
	contains = hasCompare || rnative.test( docElem.contains ) ?
		function( a, b ) {
			var adown = a.nodeType === 9 ? a.documentElement : a,
				bup = b && b.parentNode;
			return a === bup || !!( bup && bup.nodeType === 1 && (
				adown.contains ?
					adown.contains( bup ) :
					a.compareDocumentPosition && a.compareDocumentPosition( bup ) & 16
			));
		} :
		function( a, b ) {
			if ( b ) {
				while ( (b = b.parentNode) ) {
					if ( b === a ) {
						return true;
					}
				}
			}
			return false;
		};

	/* Sorting
	---------------------------------------------------------------------- */

	// Document order sorting
	sortOrder = hasCompare ?
	function( a, b ) {

		// Flag for duplicate removal
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		// Sort on method existence if only one input has compareDocumentPosition
		var compare = !a.compareDocumentPosition - !b.compareDocumentPosition;
		if ( compare ) {
			return compare;
		}

		// Calculate position if both inputs belong to the same document
		compare = ( a.ownerDocument || a ) === ( b.ownerDocument || b ) ?
			a.compareDocumentPosition( b ) :

			// Otherwise we know they are disconnected
			1;

		// Disconnected nodes
		if ( compare & 1 ||
			(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {

			// Choose the first element that is related to our preferred document
			if ( a === document || a.ownerDocument === preferredDoc && contains(preferredDoc, a) ) {
				return -1;
			}
			if ( b === document || b.ownerDocument === preferredDoc && contains(preferredDoc, b) ) {
				return 1;
			}

			// Maintain original order
			return sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;
		}

		return compare & 4 ? -1 : 1;
	} :
	function( a, b ) {
		// Exit early if the nodes are identical
		if ( a === b ) {
			hasDuplicate = true;
			return 0;
		}

		var cur,
			i = 0,
			aup = a.parentNode,
			bup = b.parentNode,
			ap = [ a ],
			bp = [ b ];

		// Parentless nodes are either documents or disconnected
		if ( !aup || !bup ) {
			return a === document ? -1 :
				b === document ? 1 :
				aup ? -1 :
				bup ? 1 :
				sortInput ?
				( indexOf( sortInput, a ) - indexOf( sortInput, b ) ) :
				0;

		// If the nodes are siblings, we can do a quick check
		} else if ( aup === bup ) {
			return siblingCheck( a, b );
		}

		// Otherwise we need full lists of their ancestors for comparison
		cur = a;
		while ( (cur = cur.parentNode) ) {
			ap.unshift( cur );
		}
		cur = b;
		while ( (cur = cur.parentNode) ) {
			bp.unshift( cur );
		}

		// Walk down the tree looking for a discrepancy
		while ( ap[i] === bp[i] ) {
			i++;
		}

		return i ?
			// Do a sibling check if the nodes have a common ancestor
			siblingCheck( ap[i], bp[i] ) :

			// Otherwise nodes in our document sort first
			ap[i] === preferredDoc ? -1 :
			bp[i] === preferredDoc ? 1 :
			0;
	};

	return document;
};

Sizzle.matches = function( expr, elements ) {
	return Sizzle( expr, null, null, elements );
};

Sizzle.matchesSelector = function( elem, expr ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	// Make sure that attribute selectors are quoted
	expr = expr.replace( rattributeQuotes, "='$1']" );

	if ( support.matchesSelector && documentIsHTML &&
		!compilerCache[ expr + " " ] &&
		( !rbuggyMatches || !rbuggyMatches.test( expr ) ) &&
		( !rbuggyQSA     || !rbuggyQSA.test( expr ) ) ) {

		try {
			var ret = matches.call( elem, expr );

			// IE 9's matchesSelector returns false on disconnected nodes
			if ( ret || support.disconnectedMatch ||
					// As well, disconnected nodes are said to be in a document
					// fragment in IE 9
					elem.document && elem.document.nodeType !== 11 ) {
				return ret;
			}
		} catch (e) {}
	}

	return Sizzle( expr, document, null, [ elem ] ).length > 0;
};

Sizzle.contains = function( context, elem ) {
	// Set document vars if needed
	if ( ( context.ownerDocument || context ) !== document ) {
		setDocument( context );
	}
	return contains( context, elem );
};

Sizzle.attr = function( elem, name ) {
	// Set document vars if needed
	if ( ( elem.ownerDocument || elem ) !== document ) {
		setDocument( elem );
	}

	var fn = Expr.attrHandle[ name.toLowerCase() ],
		// Don't get fooled by Object.prototype properties (jQuery #13807)
		val = fn && hasOwn.call( Expr.attrHandle, name.toLowerCase() ) ?
			fn( elem, name, !documentIsHTML ) :
			undefined;

	return val !== undefined ?
		val :
		support.attributes || !documentIsHTML ?
			elem.getAttribute( name ) :
			(val = elem.getAttributeNode(name)) && val.specified ?
				val.value :
				null;
};

Sizzle.escape = function( sel ) {
	return (sel + "").replace( rcssescape, fcssescape );
};

Sizzle.error = function( msg ) {
	throw new Error( "Syntax error, unrecognized expression: " + msg );
};

/**
 * Document sorting and removing duplicates
 * @param {ArrayLike} results
 */
Sizzle.uniqueSort = function( results ) {
	var elem,
		duplicates = [],
		j = 0,
		i = 0;

	// Unless we *know* we can detect duplicates, assume their presence
	hasDuplicate = !support.detectDuplicates;
	sortInput = !support.sortStable && results.slice( 0 );
	results.sort( sortOrder );

	if ( hasDuplicate ) {
		while ( (elem = results[i++]) ) {
			if ( elem === results[ i ] ) {
				j = duplicates.push( i );
			}
		}
		while ( j-- ) {
			results.splice( duplicates[ j ], 1 );
		}
	}

	// Clear input after sorting to release objects
	// See https://github.com/jquery/sizzle/pull/225
	sortInput = null;

	return results;
};

/**
 * Utility function for retrieving the text value of an array of DOM nodes
 * @param {Array|Element} elem
 */
getText = Sizzle.getText = function( elem ) {
	var node,
		ret = "",
		i = 0,
		nodeType = elem.nodeType;

	if ( !nodeType ) {
		// If no nodeType, this is expected to be an array
		while ( (node = elem[i++]) ) {
			// Do not traverse comment nodes
			ret += getText( node );
		}
	} else if ( nodeType === 1 || nodeType === 9 || nodeType === 11 ) {
		// Use textContent for elements
		// innerText usage removed for consistency of new lines (jQuery #11153)
		if ( typeof elem.textContent === "string" ) {
			return elem.textContent;
		} else {
			// Traverse its children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				ret += getText( elem );
			}
		}
	} else if ( nodeType === 3 || nodeType === 4 ) {
		return elem.nodeValue;
	}
	// Do not include comment or processing instruction nodes

	return ret;
};

Expr = Sizzle.selectors = {

	// Can be adjusted by the user
	cacheLength: 50,

	createPseudo: markFunction,

	match: matchExpr,

	attrHandle: {},

	find: {},

	relative: {
		">": { dir: "parentNode", first: true },
		" ": { dir: "parentNode" },
		"+": { dir: "previousSibling", first: true },
		"~": { dir: "previousSibling" }
	},

	preFilter: {
		"ATTR": function( match ) {
			match[1] = match[1].replace( runescape, funescape );

			// Move the given value to match[3] whether quoted or unquoted
			match[3] = ( match[3] || match[4] || match[5] || "" ).replace( runescape, funescape );

			if ( match[2] === "~=" ) {
				match[3] = " " + match[3] + " ";
			}

			return match.slice( 0, 4 );
		},

		"CHILD": function( match ) {
			/* matches from matchExpr["CHILD"]
				1 type (only|nth|...)
				2 what (child|of-type)
				3 argument (even|odd|\d*|\d*n([+-]\d+)?|...)
				4 xn-component of xn+y argument ([+-]?\d*n|)
				5 sign of xn-component
				6 x of xn-component
				7 sign of y-component
				8 y of y-component
			*/
			match[1] = match[1].toLowerCase();

			if ( match[1].slice( 0, 3 ) === "nth" ) {
				// nth-* requires argument
				if ( !match[3] ) {
					Sizzle.error( match[0] );
				}

				// numeric x and y parameters for Expr.filter.CHILD
				// remember that false/true cast respectively to 0/1
				match[4] = +( match[4] ? match[5] + (match[6] || 1) : 2 * ( match[3] === "even" || match[3] === "odd" ) );
				match[5] = +( ( match[7] + match[8] ) || match[3] === "odd" );

			// other types prohibit arguments
			} else if ( match[3] ) {
				Sizzle.error( match[0] );
			}

			return match;
		},

		"PSEUDO": function( match ) {
			var excess,
				unquoted = !match[6] && match[2];

			if ( matchExpr["CHILD"].test( match[0] ) ) {
				return null;
			}

			// Accept quoted arguments as-is
			if ( match[3] ) {
				match[2] = match[4] || match[5] || "";

			// Strip excess characters from unquoted arguments
			} else if ( unquoted && rpseudo.test( unquoted ) &&
				// Get excess from tokenize (recursively)
				(excess = tokenize( unquoted, true )) &&
				// advance to the next closing parenthesis
				(excess = unquoted.indexOf( ")", unquoted.length - excess ) - unquoted.length) ) {

				// excess is a negative index
				match[0] = match[0].slice( 0, excess );
				match[2] = unquoted.slice( 0, excess );
			}

			// Return only captures needed by the pseudo filter method (type and argument)
			return match.slice( 0, 3 );
		}
	},

	filter: {

		"TAG": function( nodeNameSelector ) {
			var nodeName = nodeNameSelector.replace( runescape, funescape ).toLowerCase();
			return nodeNameSelector === "*" ?
				function() { return true; } :
				function( elem ) {
					return elem.nodeName && elem.nodeName.toLowerCase() === nodeName;
				};
		},

		"CLASS": function( className ) {
			var pattern = classCache[ className + " " ];

			return pattern ||
				(pattern = new RegExp( "(^|" + whitespace + ")" + className + "(" + whitespace + "|$)" )) &&
				classCache( className, function( elem ) {
					return pattern.test( typeof elem.className === "string" && elem.className || typeof elem.getAttribute !== "undefined" && elem.getAttribute("class") || "" );
				});
		},

		"ATTR": function( name, operator, check ) {
			return function( elem ) {
				var result = Sizzle.attr( elem, name );

				if ( result == null ) {
					return operator === "!=";
				}
				if ( !operator ) {
					return true;
				}

				result += "";

				return operator === "=" ? result === check :
					operator === "!=" ? result !== check :
					operator === "^=" ? check && result.indexOf( check ) === 0 :
					operator === "*=" ? check && result.indexOf( check ) > -1 :
					operator === "$=" ? check && result.slice( -check.length ) === check :
					operator === "~=" ? ( " " + result.replace( rwhitespace, " " ) + " " ).indexOf( check ) > -1 :
					operator === "|=" ? result === check || result.slice( 0, check.length + 1 ) === check + "-" :
					false;
			};
		},

		"CHILD": function( type, what, argument, first, last ) {
			var simple = type.slice( 0, 3 ) !== "nth",
				forward = type.slice( -4 ) !== "last",
				ofType = what === "of-type";

			return first === 1 && last === 0 ?

				// Shortcut for :nth-*(n)
				function( elem ) {
					return !!elem.parentNode;
				} :

				function( elem, context, xml ) {
					var cache, uniqueCache, outerCache, node, nodeIndex, start,
						dir = simple !== forward ? "nextSibling" : "previousSibling",
						parent = elem.parentNode,
						name = ofType && elem.nodeName.toLowerCase(),
						useCache = !xml && !ofType,
						diff = false;

					if ( parent ) {

						// :(first|last|only)-(child|of-type)
						if ( simple ) {
							while ( dir ) {
								node = elem;
								while ( (node = node[ dir ]) ) {
									if ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) {

										return false;
									}
								}
								// Reverse direction for :only-* (if we haven't yet done so)
								start = dir = type === "only" && !start && "nextSibling";
							}
							return true;
						}

						start = [ forward ? parent.firstChild : parent.lastChild ];

						// non-xml :nth-child(...) stores cache data on `parent`
						if ( forward && useCache ) {

							// Seek `elem` from a previously-cached index

							// ...in a gzip-friendly way
							node = parent;
							outerCache = node[ expando ] || (node[ expando ] = {});

							// Support: IE <9 only
							// Defend against cloned attroperties (jQuery gh-1709)
							uniqueCache = outerCache[ node.uniqueID ] ||
								(outerCache[ node.uniqueID ] = {});

							cache = uniqueCache[ type ] || [];
							nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
							diff = nodeIndex && cache[ 2 ];
							node = nodeIndex && parent.childNodes[ nodeIndex ];

							while ( (node = ++nodeIndex && node && node[ dir ] ||

								// Fallback to seeking `elem` from the start
								(diff = nodeIndex = 0) || start.pop()) ) {

								// When found, cache indexes on `parent` and break
								if ( node.nodeType === 1 && ++diff && node === elem ) {
									uniqueCache[ type ] = [ dirruns, nodeIndex, diff ];
									break;
								}
							}

						} else {
							// Use previously-cached element index if available
							if ( useCache ) {
								// ...in a gzip-friendly way
								node = elem;
								outerCache = node[ expando ] || (node[ expando ] = {});

								// Support: IE <9 only
								// Defend against cloned attroperties (jQuery gh-1709)
								uniqueCache = outerCache[ node.uniqueID ] ||
									(outerCache[ node.uniqueID ] = {});

								cache = uniqueCache[ type ] || [];
								nodeIndex = cache[ 0 ] === dirruns && cache[ 1 ];
								diff = nodeIndex;
							}

							// xml :nth-child(...)
							// or :nth-last-child(...) or :nth(-last)?-of-type(...)
							if ( diff === false ) {
								// Use the same loop as above to seek `elem` from the start
								while ( (node = ++nodeIndex && node && node[ dir ] ||
									(diff = nodeIndex = 0) || start.pop()) ) {

									if ( ( ofType ?
										node.nodeName.toLowerCase() === name :
										node.nodeType === 1 ) &&
										++diff ) {

										// Cache the index of each encountered element
										if ( useCache ) {
											outerCache = node[ expando ] || (node[ expando ] = {});

											// Support: IE <9 only
											// Defend against cloned attroperties (jQuery gh-1709)
											uniqueCache = outerCache[ node.uniqueID ] ||
												(outerCache[ node.uniqueID ] = {});

											uniqueCache[ type ] = [ dirruns, diff ];
										}

										if ( node === elem ) {
											break;
										}
									}
								}
							}
						}

						// Incorporate the offset, then check against cycle size
						diff -= last;
						return diff === first || ( diff % first === 0 && diff / first >= 0 );
					}
				};
		},

		"PSEUDO": function( pseudo, argument ) {
			// pseudo-class names are case-insensitive
			// http://www.w3.org/TR/selectors/#pseudo-classes
			// Prioritize by case sensitivity in case custom pseudos are added with uppercase letters
			// Remember that setFilters inherits from pseudos
			var args,
				fn = Expr.pseudos[ pseudo ] || Expr.setFilters[ pseudo.toLowerCase() ] ||
					Sizzle.error( "unsupported pseudo: " + pseudo );

			// The user may use createPseudo to indicate that
			// arguments are needed to create the filter function
			// just as Sizzle does
			if ( fn[ expando ] ) {
				return fn( argument );
			}

			// But maintain support for old signatures
			if ( fn.length > 1 ) {
				args = [ pseudo, pseudo, "", argument ];
				return Expr.setFilters.hasOwnProperty( pseudo.toLowerCase() ) ?
					markFunction(function( seed, matches ) {
						var idx,
							matched = fn( seed, argument ),
							i = matched.length;
						while ( i-- ) {
							idx = indexOf( seed, matched[i] );
							seed[ idx ] = !( matches[ idx ] = matched[i] );
						}
					}) :
					function( elem ) {
						return fn( elem, 0, args );
					};
			}

			return fn;
		}
	},

	pseudos: {
		// Potentially complex pseudos
		"not": markFunction(function( selector ) {
			// Trim the selector passed to compile
			// to avoid treating leading and trailing
			// spaces as combinators
			var input = [],
				results = [],
				matcher = compile( selector.replace( rtrim, "$1" ) );

			return matcher[ expando ] ?
				markFunction(function( seed, matches, context, xml ) {
					var elem,
						unmatched = matcher( seed, null, xml, [] ),
						i = seed.length;

					// Match elements unmatched by `matcher`
					while ( i-- ) {
						if ( (elem = unmatched[i]) ) {
							seed[i] = !(matches[i] = elem);
						}
					}
				}) :
				function( elem, context, xml ) {
					input[0] = elem;
					matcher( input, null, xml, results );
					// Don't keep the element (issue #299)
					input[0] = null;
					return !results.pop();
				};
		}),

		"has": markFunction(function( selector ) {
			return function( elem ) {
				return Sizzle( selector, elem ).length > 0;
			};
		}),

		"contains": markFunction(function( text ) {
			text = text.replace( runescape, funescape );
			return function( elem ) {
				return ( elem.textContent || elem.innerText || getText( elem ) ).indexOf( text ) > -1;
			};
		}),

		// "Whether an element is represented by a :lang() selector
		// is based solely on the element's language value
		// being equal to the identifier C,
		// or beginning with the identifier C immediately followed by "-".
		// The matching of C against the element's language value is performed case-insensitively.
		// The identifier C does not have to be a valid language name."
		// http://www.w3.org/TR/selectors/#lang-pseudo
		"lang": markFunction( function( lang ) {
			// lang value must be a valid identifier
			if ( !ridentifier.test(lang || "") ) {
				Sizzle.error( "unsupported lang: " + lang );
			}
			lang = lang.replace( runescape, funescape ).toLowerCase();
			return function( elem ) {
				var elemLang;
				do {
					if ( (elemLang = documentIsHTML ?
						elem.lang :
						elem.getAttribute("xml:lang") || elem.getAttribute("lang")) ) {

						elemLang = elemLang.toLowerCase();
						return elemLang === lang || elemLang.indexOf( lang + "-" ) === 0;
					}
				} while ( (elem = elem.parentNode) && elem.nodeType === 1 );
				return false;
			};
		}),

		// Miscellaneous
		"target": function( elem ) {
			var hash = window.location && window.location.hash;
			return hash && hash.slice( 1 ) === elem.id;
		},

		"root": function( elem ) {
			return elem === docElem;
		},

		"focus": function( elem ) {
			return elem === document.activeElement && (!document.hasFocus || document.hasFocus()) && !!(elem.type || elem.href || ~elem.tabIndex);
		},

		// Boolean properties
		"enabled": createDisabledPseudo( false ),
		"disabled": createDisabledPseudo( true ),

		"checked": function( elem ) {
			// In CSS3, :checked should return both checked and selected elements
			// http://www.w3.org/TR/2011/REC-css3-selectors-20110929/#checked
			var nodeName = elem.nodeName.toLowerCase();
			return (nodeName === "input" && !!elem.checked) || (nodeName === "option" && !!elem.selected);
		},

		"selected": function( elem ) {
			// Accessing this property makes selected-by-default
			// options in Safari work properly
			if ( elem.parentNode ) {
				elem.parentNode.selectedIndex;
			}

			return elem.selected === true;
		},

		// Contents
		"empty": function( elem ) {
			// http://www.w3.org/TR/selectors/#empty-pseudo
			// :empty is negated by element (1) or content nodes (text: 3; cdata: 4; entity ref: 5),
			//   but not by others (comment: 8; processing instruction: 7; etc.)
			// nodeType < 6 works because attributes (2) do not appear as children
			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
				if ( elem.nodeType < 6 ) {
					return false;
				}
			}
			return true;
		},

		"parent": function( elem ) {
			return !Expr.pseudos["empty"]( elem );
		},

		// Element/input types
		"header": function( elem ) {
			return rheader.test( elem.nodeName );
		},

		"input": function( elem ) {
			return rinputs.test( elem.nodeName );
		},

		"button": function( elem ) {
			var name = elem.nodeName.toLowerCase();
			return name === "input" && elem.type === "button" || name === "button";
		},

		"text": function( elem ) {
			var attr;
			return elem.nodeName.toLowerCase() === "input" &&
				elem.type === "text" &&

				// Support: IE<8
				// New HTML5 attribute values (e.g., "search") appear with elem.type === "text"
				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === "text" );
		},

		// Position-in-collection
		"first": createPositionalPseudo(function() {
			return [ 0 ];
		}),

		"last": createPositionalPseudo(function( matchIndexes, length ) {
			return [ length - 1 ];
		}),

		"eq": createPositionalPseudo(function( matchIndexes, length, argument ) {
			return [ argument < 0 ? argument + length : argument ];
		}),

		"even": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 0;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"odd": createPositionalPseudo(function( matchIndexes, length ) {
			var i = 1;
			for ( ; i < length; i += 2 ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"lt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; --i >= 0; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		}),

		"gt": createPositionalPseudo(function( matchIndexes, length, argument ) {
			var i = argument < 0 ? argument + length : argument;
			for ( ; ++i < length; ) {
				matchIndexes.push( i );
			}
			return matchIndexes;
		})
	}
};

Expr.pseudos["nth"] = Expr.pseudos["eq"];

// Add button/input type pseudos
for ( i in { radio: true, checkbox: true, file: true, password: true, image: true } ) {
	Expr.pseudos[ i ] = createInputPseudo( i );
}
for ( i in { submit: true, reset: true } ) {
	Expr.pseudos[ i ] = createButtonPseudo( i );
}

// Easy API for creating new setFilters
function setFilters() {}
setFilters.prototype = Expr.filters = Expr.pseudos;
Expr.setFilters = new setFilters();

tokenize = Sizzle.tokenize = function( selector, parseOnly ) {
	var matched, match, tokens, type,
		soFar, groups, preFilters,
		cached = tokenCache[ selector + " " ];

	if ( cached ) {
		return parseOnly ? 0 : cached.slice( 0 );
	}

	soFar = selector;
	groups = [];
	preFilters = Expr.preFilter;

	while ( soFar ) {

		// Comma and first run
		if ( !matched || (match = rcomma.exec( soFar )) ) {
			if ( match ) {
				// Don't consume trailing commas as valid
				soFar = soFar.slice( match[0].length ) || soFar;
			}
			groups.push( (tokens = []) );
		}

		matched = false;

		// Combinators
		if ( (match = rcombinators.exec( soFar )) ) {
			matched = match.shift();
			tokens.push({
				value: matched,
				// Cast descendant combinators to space
				type: match[0].replace( rtrim, " " )
			});
			soFar = soFar.slice( matched.length );
		}

		// Filters
		for ( type in Expr.filter ) {
			if ( (match = matchExpr[ type ].exec( soFar )) && (!preFilters[ type ] ||
				(match = preFilters[ type ]( match ))) ) {
				matched = match.shift();
				tokens.push({
					value: matched,
					type: type,
					matches: match
				});
				soFar = soFar.slice( matched.length );
			}
		}

		if ( !matched ) {
			break;
		}
	}

	// Return the length of the invalid excess
	// if we're just parsing
	// Otherwise, throw an error or return tokens
	return parseOnly ?
		soFar.length :
		soFar ?
			Sizzle.error( selector ) :
			// Cache the tokens
			tokenCache( selector, groups ).slice( 0 );
};

function toSelector( tokens ) {
	var i = 0,
		len = tokens.length,
		selector = "";
	for ( ; i < len; i++ ) {
		selector += tokens[i].value;
	}
	return selector;
}

function addCombinator( matcher, combinator, base ) {
	var dir = combinator.dir,
		skip = combinator.next,
		key = skip || dir,
		checkNonElements = base && key === "parentNode",
		doneName = done++;

	return combinator.first ?
		// Check against closest ancestor/preceding element
		function( elem, context, xml ) {
			while ( (elem = elem[ dir ]) ) {
				if ( elem.nodeType === 1 || checkNonElements ) {
					return matcher( elem, context, xml );
				}
			}
			return false;
		} :

		// Check against all ancestor/preceding elements
		function( elem, context, xml ) {
			var oldCache, uniqueCache, outerCache,
				newCache = [ dirruns, doneName ];

			// We can't set arbitrary data on XML nodes, so they don't benefit from combinator caching
			if ( xml ) {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						if ( matcher( elem, context, xml ) ) {
							return true;
						}
					}
				}
			} else {
				while ( (elem = elem[ dir ]) ) {
					if ( elem.nodeType === 1 || checkNonElements ) {
						outerCache = elem[ expando ] || (elem[ expando ] = {});

						// Support: IE <9 only
						// Defend against cloned attroperties (jQuery gh-1709)
						uniqueCache = outerCache[ elem.uniqueID ] || (outerCache[ elem.uniqueID ] = {});

						if ( skip && skip === elem.nodeName.toLowerCase() ) {
							elem = elem[ dir ] || elem;
						} else if ( (oldCache = uniqueCache[ key ]) &&
							oldCache[ 0 ] === dirruns && oldCache[ 1 ] === doneName ) {

							// Assign to newCache so results back-propagate to previous elements
							return (newCache[ 2 ] = oldCache[ 2 ]);
						} else {
							// Reuse newcache so results back-propagate to previous elements
							uniqueCache[ key ] = newCache;

							// A match means we're done; a fail means we have to keep checking
							if ( (newCache[ 2 ] = matcher( elem, context, xml )) ) {
								return true;
							}
						}
					}
				}
			}
			return false;
		};
}

function elementMatcher( matchers ) {
	return matchers.length > 1 ?
		function( elem, context, xml ) {
			var i = matchers.length;
			while ( i-- ) {
				if ( !matchers[i]( elem, context, xml ) ) {
					return false;
				}
			}
			return true;
		} :
		matchers[0];
}

function multipleContexts( selector, contexts, results ) {
	var i = 0,
		len = contexts.length;
	for ( ; i < len; i++ ) {
		Sizzle( selector, contexts[i], results );
	}
	return results;
}

function condense( unmatched, map, filter, context, xml ) {
	var elem,
		newUnmatched = [],
		i = 0,
		len = unmatched.length,
		mapped = map != null;

	for ( ; i < len; i++ ) {
		if ( (elem = unmatched[i]) ) {
			if ( !filter || filter( elem, context, xml ) ) {
				newUnmatched.push( elem );
				if ( mapped ) {
					map.push( i );
				}
			}
		}
	}

	return newUnmatched;
}

function setMatcher( preFilter, selector, matcher, postFilter, postFinder, postSelector ) {
	if ( postFilter && !postFilter[ expando ] ) {
		postFilter = setMatcher( postFilter );
	}
	if ( postFinder && !postFinder[ expando ] ) {
		postFinder = setMatcher( postFinder, postSelector );
	}
	return markFunction(function( seed, results, context, xml ) {
		var temp, i, elem,
			preMap = [],
			postMap = [],
			preexisting = results.length,

			// Get initial elements from seed or context
			elems = seed || multipleContexts( selector || "*", context.nodeType ? [ context ] : context, [] ),

			// Prefilter to get matcher input, preserving a map for seed-results synchronization
			matcherIn = preFilter && ( seed || !selector ) ?
				condense( elems, preMap, preFilter, context, xml ) :
				elems,

			matcherOut = matcher ?
				// If we have a postFinder, or filtered seed, or non-seed postFilter or preexisting results,
				postFinder || ( seed ? preFilter : preexisting || postFilter ) ?

					// ...intermediate processing is necessary
					[] :

					// ...otherwise use results directly
					results :
				matcherIn;

		// Find primary matches
		if ( matcher ) {
			matcher( matcherIn, matcherOut, context, xml );
		}

		// Apply postFilter
		if ( postFilter ) {
			temp = condense( matcherOut, postMap );
			postFilter( temp, [], context, xml );

			// Un-match failing elements by moving them back to matcherIn
			i = temp.length;
			while ( i-- ) {
				if ( (elem = temp[i]) ) {
					matcherOut[ postMap[i] ] = !(matcherIn[ postMap[i] ] = elem);
				}
			}
		}

		if ( seed ) {
			if ( postFinder || preFilter ) {
				if ( postFinder ) {
					// Get the final matcherOut by condensing this intermediate into postFinder contexts
					temp = [];
					i = matcherOut.length;
					while ( i-- ) {
						if ( (elem = matcherOut[i]) ) {
							// Restore matcherIn since elem is not yet a final match
							temp.push( (matcherIn[i] = elem) );
						}
					}
					postFinder( null, (matcherOut = []), temp, xml );
				}

				// Move matched elements from seed to results to keep them synchronized
				i = matcherOut.length;
				while ( i-- ) {
					if ( (elem = matcherOut[i]) &&
						(temp = postFinder ? indexOf( seed, elem ) : preMap[i]) > -1 ) {

						seed[temp] = !(results[temp] = elem);
					}
				}
			}

		// Add elements to results, through postFinder if defined
		} else {
			matcherOut = condense(
				matcherOut === results ?
					matcherOut.splice( preexisting, matcherOut.length ) :
					matcherOut
			);
			if ( postFinder ) {
				postFinder( null, results, matcherOut, xml );
			} else {
				push.apply( results, matcherOut );
			}
		}
	});
}

function matcherFromTokens( tokens ) {
	var checkContext, matcher, j,
		len = tokens.length,
		leadingRelative = Expr.relative[ tokens[0].type ],
		implicitRelative = leadingRelative || Expr.relative[" "],
		i = leadingRelative ? 1 : 0,

		// The foundational matcher ensures that elements are reachable from top-level context(s)
		matchContext = addCombinator( function( elem ) {
			return elem === checkContext;
		}, implicitRelative, true ),
		matchAnyContext = addCombinator( function( elem ) {
			return indexOf( checkContext, elem ) > -1;
		}, implicitRelative, true ),
		matchers = [ function( elem, context, xml ) {
			var ret = ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
				(checkContext = context).nodeType ?
					matchContext( elem, context, xml ) :
					matchAnyContext( elem, context, xml ) );
			// Avoid hanging onto element (issue #299)
			checkContext = null;
			return ret;
		} ];

	for ( ; i < len; i++ ) {
		if ( (matcher = Expr.relative[ tokens[i].type ]) ) {
			matchers = [ addCombinator(elementMatcher( matchers ), matcher) ];
		} else {
			matcher = Expr.filter[ tokens[i].type ].apply( null, tokens[i].matches );

			// Return special upon seeing a positional matcher
			if ( matcher[ expando ] ) {
				// Find the next relative operator (if any) for proper handling
				j = ++i;
				for ( ; j < len; j++ ) {
					if ( Expr.relative[ tokens[j].type ] ) {
						break;
					}
				}
				return setMatcher(
					i > 1 && elementMatcher( matchers ),
					i > 1 && toSelector(
						// If the preceding token was a descendant combinator, insert an implicit any-element `*`
						tokens.slice( 0, i - 1 ).concat({ value: tokens[ i - 2 ].type === " " ? "*" : "" })
					).replace( rtrim, "$1" ),
					matcher,
					i < j && matcherFromTokens( tokens.slice( i, j ) ),
					j < len && matcherFromTokens( (tokens = tokens.slice( j )) ),
					j < len && toSelector( tokens )
				);
			}
			matchers.push( matcher );
		}
	}

	return elementMatcher( matchers );
}

function matcherFromGroupMatchers( elementMatchers, setMatchers ) {
	var bySet = setMatchers.length > 0,
		byElement = elementMatchers.length > 0,
		superMatcher = function( seed, context, xml, results, outermost ) {
			var elem, j, matcher,
				matchedCount = 0,
				i = "0",
				unmatched = seed && [],
				setMatched = [],
				contextBackup = outermostContext,
				// We must always have either seed elements or outermost context
				elems = seed || byElement && Expr.find["TAG"]( "*", outermost ),
				// Use integer dirruns iff this is the outermost matcher
				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1),
				len = elems.length;

			if ( outermost ) {
				outermostContext = context === document || context || outermost;
			}

			// Add elements passing elementMatchers directly to results
			// Support: IE<9, Safari
			// Tolerate NodeList properties (IE: "length"; Safari: <number>) matching elements by id
			for ( ; i !== len && (elem = elems[i]) != null; i++ ) {
				if ( byElement && elem ) {
					j = 0;
					if ( !context && elem.ownerDocument !== document ) {
						setDocument( elem );
						xml = !documentIsHTML;
					}
					while ( (matcher = elementMatchers[j++]) ) {
						if ( matcher( elem, context || document, xml) ) {
							results.push( elem );
							break;
						}
					}
					if ( outermost ) {
						dirruns = dirrunsUnique;
					}
				}

				// Track unmatched elements for set filters
				if ( bySet ) {
					// They will have gone through all possible matchers
					if ( (elem = !matcher && elem) ) {
						matchedCount--;
					}

					// Lengthen the array for every element, matched or not
					if ( seed ) {
						unmatched.push( elem );
					}
				}
			}

			// `i` is now the count of elements visited above, and adding it to `matchedCount`
			// makes the latter nonnegative.
			matchedCount += i;

			// Apply set filters to unmatched elements
			// NOTE: This can be skipped if there are no unmatched elements (i.e., `matchedCount`
			// equals `i`), unless we didn't visit _any_ elements in the above loop because we have
			// no element matchers and no seed.
			// Incrementing an initially-string "0" `i` allows `i` to remain a string only in that
			// case, which will result in a "00" `matchedCount` that differs from `i` but is also
			// numerically zero.
			if ( bySet && i !== matchedCount ) {
				j = 0;
				while ( (matcher = setMatchers[j++]) ) {
					matcher( unmatched, setMatched, context, xml );
				}

				if ( seed ) {
					// Reintegrate element matches to eliminate the need for sorting
					if ( matchedCount > 0 ) {
						while ( i-- ) {
							if ( !(unmatched[i] || setMatched[i]) ) {
								setMatched[i] = pop.call( results );
							}
						}
					}

					// Discard index placeholder values to get only actual matches
					setMatched = condense( setMatched );
				}

				// Add matches to results
				push.apply( results, setMatched );

				// Seedless set matches succeeding multiple successful matchers stipulate sorting
				if ( outermost && !seed && setMatched.length > 0 &&
					( matchedCount + setMatchers.length ) > 1 ) {

					Sizzle.uniqueSort( results );
				}
			}

			// Override manipulation of globals by nested matchers
			if ( outermost ) {
				dirruns = dirrunsUnique;
				outermostContext = contextBackup;
			}

			return unmatched;
		};

	return bySet ?
		markFunction( superMatcher ) :
		superMatcher;
}

compile = Sizzle.compile = function( selector, match /* Internal Use Only */ ) {
	var i,
		setMatchers = [],
		elementMatchers = [],
		cached = compilerCache[ selector + " " ];

	if ( !cached ) {
		// Generate a function of recursive functions that can be used to check each element
		if ( !match ) {
			match = tokenize( selector );
		}
		i = match.length;
		while ( i-- ) {
			cached = matcherFromTokens( match[i] );
			if ( cached[ expando ] ) {
				setMatchers.push( cached );
			} else {
				elementMatchers.push( cached );
			}
		}

		// Cache the compiled function
		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );

		// Save selector and tokenization
		cached.selector = selector;
	}
	return cached;
};

/**
 * A low-level selection function that works with Sizzle's compiled
 *  selector functions
 * @param {String|Function} selector A selector or a pre-compiled
 *  selector function built with Sizzle.compile
 * @param {Element} context
 * @param {Array} [results]
 * @param {Array} [seed] A set of elements to match against
 */
select = Sizzle.select = function( selector, context, results, seed ) {
	var i, tokens, token, type, find,
		compiled = typeof selector === "function" && selector,
		match = !seed && tokenize( (selector = compiled.selector || selector) );

	results = results || [];

	// Try to minimize operations if there is only one selector in the list and no seed
	// (the latter of which guarantees us context)
	if ( match.length === 1 ) {

		// Reduce context if the leading compound selector is an ID
		tokens = match[0] = match[0].slice( 0 );
		if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
				context.nodeType === 9 && documentIsHTML && Expr.relative[ tokens[1].type ] ) {

			context = ( Expr.find["ID"]( token.matches[0].replace(runescape, funescape), context ) || [] )[0];
			if ( !context ) {
				return results;

			// Precompiled matchers will still verify ancestry, so step up a level
			} else if ( compiled ) {
				context = context.parentNode;
			}

			selector = selector.slice( tokens.shift().value.length );
		}

		// Fetch a seed set for right-to-left matching
		i = matchExpr["needsContext"].test( selector ) ? 0 : tokens.length;
		while ( i-- ) {
			token = tokens[i];

			// Abort if we hit a combinator
			if ( Expr.relative[ (type = token.type) ] ) {
				break;
			}
			if ( (find = Expr.find[ type ]) ) {
				// Search, expanding context for leading sibling combinators
				if ( (seed = find(
					token.matches[0].replace( runescape, funescape ),
					rsibling.test( tokens[0].type ) && testContext( context.parentNode ) || context
				)) ) {

					// If seed is empty or no tokens remain, we can return early
					tokens.splice( i, 1 );
					selector = seed.length && toSelector( tokens );
					if ( !selector ) {
						push.apply( results, seed );
						return results;
					}

					break;
				}
			}
		}
	}

	// Compile and execute a filtering function if one is not provided
	// Provide `match` to avoid retokenization if we modified the selector above
	( compiled || compile( selector, match ) )(
		seed,
		context,
		!documentIsHTML,
		results,
		!context || rsibling.test( selector ) && testContext( context.parentNode ) || context
	);
	return results;
};

// One-time assignments

// Sort stability
support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;

// Support: Chrome 14-35+
// Always assume duplicates if they aren't passed to the comparison function
support.detectDuplicates = !!hasDuplicate;

// Initialize against the default document
setDocument();

// Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27)
// Detached nodes confoundingly follow *each other*
support.sortDetached = assert(function( el ) {
	// Should return 1, but returns 4 (following)
	return el.compareDocumentPosition( document.createElement("fieldset") ) & 1;
});

// Support: IE<8
// Prevent attribute/property "interpolation"
// https://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
if ( !assert(function( el ) {
	el.innerHTML = "<a href='#'></a>";
	return el.firstChild.getAttribute("href") === "#" ;
}) ) {
	addHandle( "type|href|height|width", function( elem, name, isXML ) {
		if ( !isXML ) {
			return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
		}
	});
}

// Support: IE<9
// Use defaultValue in place of getAttribute("value")
if ( !support.attributes || !assert(function( el ) {
	el.innerHTML = "<input/>";
	el.firstChild.setAttribute( "value", "" );
	return el.firstChild.getAttribute( "value" ) === "";
}) ) {
	addHandle( "value", function( elem, name, isXML ) {
		if ( !isXML && elem.nodeName.toLowerCase() === "input" ) {
			return elem.defaultValue;
		}
	});
}

// Support: IE<9
// Use getAttributeNode to fetch booleans when getAttribute lies
if ( !assert(function( el ) {
	return el.getAttribute("disabled") == null;
}) ) {
	addHandle( booleans, function( elem, name, isXML ) {
		var val;
		if ( !isXML ) {
			return elem[ name ] === true ? name.toLowerCase() :
					(val = elem.getAttributeNode( name )) && val.specified ?
					val.value :
				null;
		}
	});
}

return Sizzle;

})( window );



jQuery.find = Sizzle;
jQuery.expr = Sizzle.selectors;

// Deprecated
jQuery.expr[ ":" ] = jQuery.expr.pseudos;
jQuery.uniqueSort = jQuery.unique = Sizzle.uniqueSort;
jQuery.text = Sizzle.getText;
jQuery.isXMLDoc = Sizzle.isXML;
jQuery.contains = Sizzle.contains;
jQuery.escapeSelector = Sizzle.escape;




var dir = function( elem, dir, until ) {
	var matched = [],
		truncate = until !== undefined;

	while ( ( elem = elem[ dir ] ) && elem.nodeType !== 9 ) {
		if ( elem.nodeType === 1 ) {
			if ( truncate && jQuery( elem ).is( until ) ) {
				break;
			}
			matched.push( elem );
		}
	}
	return matched;
};


var siblings = function( n, elem ) {
	var matched = [];

	for ( ; n; n = n.nextSibling ) {
		if ( n.nodeType === 1 && n !== elem ) {
			matched.push( n );
		}
	}

	return matched;
};


var rneedsContext = jQuery.expr.match.needsContext;



function nodeName( elem, name ) {

  return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();

};
var rsingleTag = ( /^<([a-z][^\/\0>:\x20\t\r\n\f]*)[\x20\t\r\n\f]*\/?>(?:<\/\1>|)$/i );



var risSimple = /^.[^:#\[\.,]*$/;

// Implement the identical functionality for filter and not
function winnow( elements, qualifier, not ) {
	if ( jQuery.isFunction( qualifier ) ) {
		return jQuery.grep( elements, function( elem, i ) {
			return !!qualifier.call( elem, i, elem ) !== not;
		} );
	}

	// Single element
	if ( qualifier.nodeType ) {
		return jQuery.grep( elements, function( elem ) {
			return ( elem === qualifier ) !== not;
		} );
	}

	// Arraylike of elements (jQuery, arguments, Array)
	if ( typeof qualifier !== "string" ) {
		return jQuery.grep( elements, function( elem ) {
			return ( indexOf.call( qualifier, elem ) > -1 ) !== not;
		} );
	}

	// Simple selector that can be filtered directly, removing non-Elements
	if ( risSimple.test( qualifier ) ) {
		return jQuery.filter( qualifier, elements, not );
	}

	// Complex selector, compare the two sets, removing non-Elements
	qualifier = jQuery.filter( qualifier, elements );
	return jQuery.grep( elements, function( elem ) {
		return ( indexOf.call( qualifier, elem ) > -1 ) !== not && elem.nodeType === 1;
	} );
}

jQuery.filter = function( expr, elems, not ) {
	var elem = elems[ 0 ];

	if ( not ) {
		expr = ":not(" + expr + ")";
	}

	if ( elems.length === 1 && elem.nodeType === 1 ) {
		return jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [];
	}

	return jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
		return elem.nodeType === 1;
	} ) );
};

jQuery.fn.extend( {
	find: function( selector ) {
		var i, ret,
			len = this.length,
			self = this;

		if ( typeof selector !== "string" ) {
			return this.pushStack( jQuery( selector ).filter( function() {
				for ( i = 0; i < len; i++ ) {
					if ( jQuery.contains( self[ i ], this ) ) {
						return true;
					}
				}
			} ) );
		}

		ret = this.pushStack( [] );

		for ( i = 0; i < len; i++ ) {
			jQuery.find( selector, self[ i ], ret );
		}

		return len > 1 ? jQuery.uniqueSort( ret ) : ret;
	},
	filter: function( selector ) {
		return this.pushStack( winnow( this, selector || [], false ) );
	},
	not: function( selector ) {
		return this.pushStack( winnow( this, selector || [], true ) );
	},
	is: function( selector ) {
		return !!winnow(
			this,

			// If this is a positional/relative selector, check membership in the returned set
			// so $("p:first").is("p:last") won't return true for a doc with two "p".
			typeof selector === "string" && rneedsContext.test( selector ) ?
				jQuery( selector ) :
				selector || [],
			false
		).length;
	}
} );


// Initialize a jQuery object


// A central reference to the root jQuery(document)
var rootjQuery,

	// A simple way to check for HTML strings
	// Prioritize #id over <tag> to avoid XSS via location.hash (#9521)
	// Strict HTML recognition (#11290: must start with <)
	// Shortcut simple #id case for speed
	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]+))$/,

	init = jQuery.fn.init = function( selector, context, root ) {
		var match, elem;

		// HANDLE: $(""), $(null), $(undefined), $(false)
		if ( !selector ) {
			return this;
		}

		// Method init() accepts an alternate rootjQuery
		// so migrate can support jQuery.sub (gh-2101)
		root = root || rootjQuery;

		// Handle HTML strings
		if ( typeof selector === "string" ) {
			if ( selector[ 0 ] === "<" &&
				selector[ selector.length - 1 ] === ">" &&
				selector.length >= 3 ) {

				// Assume that strings that start and end with <> are HTML and skip the regex check
				match = [ null, selector, null ];

			} else {
				match = rquickExpr.exec( selector );
			}

			// Match html or make sure no context is specified for #id
			if ( match && ( match[ 1 ] || !context ) ) {

				// HANDLE: $(html) -> $(array)
				if ( match[ 1 ] ) {
					context = context instanceof jQuery ? context[ 0 ] : context;

					// Option to run scripts is true for back-compat
					// Intentionally let the error be thrown if parseHTML is not present
					jQuery.merge( this, jQuery.parseHTML(
						match[ 1 ],
						context && context.nodeType ? context.ownerDocument || context : document,
						true
					) );

					// HANDLE: $(html, props)
					if ( rsingleTag.test( match[ 1 ] ) && jQuery.isPlainObject( context ) ) {
						for ( match in context ) {

							// Properties of context are called as methods if possible
							if ( jQuery.isFunction( this[ match ] ) ) {
								this[ match ]( context[ match ] );

							// ...and otherwise set as attributes
							} else {
								this.attr( match, context[ match ] );
							}
						}
					}

					return this;

				// HANDLE: $(#id)
				} else {
					elem = document.getElementById( match[ 2 ] );

					if ( elem ) {

						// Inject the element directly into the jQuery object
						this[ 0 ] = elem;
						this.length = 1;
					}
					return this;
				}

			// HANDLE: $(expr, $(...))
			} else if ( !context || context.jquery ) {
				return ( context || root ).find( selector );

			// HANDLE: $(expr, context)
			// (which is just equivalent to: $(context).find(expr)
			} else {
				return this.constructor( context ).find( selector );
			}

		// HANDLE: $(DOMElement)
		} else if ( selector.nodeType ) {
			this[ 0 ] = selector;
			this.length = 1;
			return this;

		// HANDLE: $(function)
		// Shortcut for document ready
		} else if ( jQuery.isFunction( selector ) ) {
			return root.ready !== undefined ?
				root.ready( selector ) :

				// Execute immediately if ready is not present
				selector( jQuery );
		}

		return jQuery.makeArray( selector, this );
	};

// Give the init function the jQuery prototype for later instantiation
init.prototype = jQuery.fn;

// Initialize central reference
rootjQuery = jQuery( document );


var rparentsprev = /^(?:parents|prev(?:Until|All))/,

	// Methods guaranteed to produce a unique set when starting from a unique set
	guaranteedUnique = {
		children: true,
		contents: true,
		next: true,
		prev: true
	};

jQuery.fn.extend( {
	has: function( target ) {
		var targets = jQuery( target, this ),
			l = targets.length;

		return this.filter( function() {
			var i = 0;
			for ( ; i < l; i++ ) {
				if ( jQuery.contains( this, targets[ i ] ) ) {
					return true;
				}
			}
		} );
	},

	closest: function( selectors, context ) {
		var cur,
			i = 0,
			l = this.length,
			matched = [],
			targets = typeof selectors !== "string" && jQuery( selectors );

		// Positional selectors never match, since there's no _selection_ context
		if ( !rneedsContext.test( selectors ) ) {
			for ( ; i < l; i++ ) {
				for ( cur = this[ i ]; cur && cur !== context; cur = cur.parentNode ) {

					// Always skip document fragments
					if ( cur.nodeType < 11 && ( targets ?
						targets.index( cur ) > -1 :

						// Don't pass non-elements to Sizzle
						cur.nodeType === 1 &&
							jQuery.find.matchesSelector( cur, selectors ) ) ) {

						matched.push( cur );
						break;
					}
				}
			}
		}

		return this.pushStack( matched.length > 1 ? jQuery.uniqueSort( matched ) : matched );
	},

	// Determine the position of an element within the set
	index: function( elem ) {

		// No argument, return index in parent
		if ( !elem ) {
			return ( this[ 0 ] && this[ 0 ].parentNode ) ? this.first().prevAll().length : -1;
		}

		// Index in selector
		if ( typeof elem === "string" ) {
			return indexOf.call( jQuery( elem ), this[ 0 ] );
		}

		// Locate the position of the desired element
		return indexOf.call( this,

			// If it receives a jQuery object, the first element is used
			elem.jquery ? elem[ 0 ] : elem
		);
	},

	add: function( selector, context ) {
		return this.pushStack(
			jQuery.uniqueSort(
				jQuery.merge( this.get(), jQuery( selector, context ) )
			)
		);
	},

	addBack: function( selector ) {
		return this.add( selector == null ?
			this.prevObject : this.prevObject.filter( selector )
		);
	}
} );

function sibling( cur, dir ) {
	while ( ( cur = cur[ dir ] ) && cur.nodeType !== 1 ) {}
	return cur;
}

jQuery.each( {
	parent: function( elem ) {
		var parent = elem.parentNode;
		return parent && parent.nodeType !== 11 ? parent : null;
	},
	parents: function( elem ) {
		return dir( elem, "parentNode" );
	},
	parentsUntil: function( elem, i, until ) {
		return dir( elem, "parentNode", until );
	},
	next: function( elem ) {
		return sibling( elem, "nextSibling" );
	},
	prev: function( elem ) {
		return sibling( elem, "previousSibling" );
	},
	nextAll: function( elem ) {
		return dir( elem, "nextSibling" );
	},
	prevAll: function( elem ) {
		return dir( elem, "previousSibling" );
	},
	nextUntil: function( elem, i, until ) {
		return dir( elem, "nextSibling", until );
	},
	prevUntil: function( elem, i, until ) {
		return dir( elem, "previousSibling", until );
	},
	siblings: function( elem ) {
		return siblings( ( elem.parentNode || {} ).firstChild, elem );
	},
	children: function( elem ) {
		return siblings( elem.firstChild );
	},
	contents: function( elem ) {
        if ( nodeName( elem, "iframe" ) ) {
            return elem.contentDocument;
        }

        // Support: IE 9 - 11 only, iOS 7 only, Android Browser <=4.3 only
        // Treat the template element as a regular one in browsers that
        // don't support it.
        if ( nodeName( elem, "template" ) ) {
            elem = elem.content || elem;
        }

        return jQuery.merge( [], elem.childNodes );
	}
}, function( name, fn ) {
	jQuery.fn[ name ] = function( until, selector ) {
		var matched = jQuery.map( this, fn, until );

		if ( name.slice( -5 ) !== "Until" ) {
			selector = until;
		}

		if ( selector && typeof selector === "string" ) {
			matched = jQuery.filter( selector, matched );
		}

		if ( this.length > 1 ) {

			// Remove duplicates
			if ( !guaranteedUnique[ name ] ) {
				jQuery.uniqueSort( matched );
			}

			// Reverse order for parents* and prev-derivatives
			if ( rparentsprev.test( name ) ) {
				matched.reverse();
			}
		}

		return this.pushStack( matched );
	};
} );
var rnothtmlwhite = ( /[^\x20\t\r\n\f]+/g );



// Convert String-formatted options into Object-formatted ones
function createOptions( options ) {
	var object = {};
	jQuery.each( options.match( rnothtmlwhite ) || [], function( _, flag ) {
		object[ flag ] = true;
	} );
	return object;
}

/*
 * Create a callback list using the following parameters:
 *
 *	options: an optional list of space-separated options that will change how
 *			the callback list behaves or a more traditional option object
 *
 * By default a callback list will act like an event callback list and can be
 * "fired" multiple times.
 *
 * Possible options:
 *
 *	once:			will ensure the callback list can only be fired once (like a Deferred)
 *
 *	memory:			will keep track of previous values and will call any callback added
 *					after the list has been fired right away with the latest "memorized"
 *					values (like a Deferred)
 *
 *	unique:			will ensure a callback can only be added once (no duplicate in the list)
 *
 *	stopOnFalse:	interrupt callings when a callback returns false
 *
 */
jQuery.Callbacks = function( options ) {

	// Convert options from String-formatted to Object-formatted if needed
	// (we check in cache first)
	options = typeof options === "string" ?
		createOptions( options ) :
		jQuery.extend( {}, options );

	var // Flag to know if list is currently firing
		firing,

		// Last fire value for non-forgettable lists
		memory,

		// Flag to know if list was already fired
		fired,

		// Flag to prevent firing
		locked,

		// Actual callback list
		list = [],

		// Queue of execution data for repeatable lists
		queue = [],

		// Index of currently firing callback (modified by add/remove as needed)
		firingIndex = -1,

		// Fire callbacks
		fire = function() {

			// Enforce single-firing
			locked = locked || options.once;

			// Execute callbacks for all pending executions,
			// respecting firingIndex overrides and runtime changes
			fired = firing = true;
			for ( ; queue.length; firingIndex = -1 ) {
				memory = queue.shift();
				while ( ++firingIndex < list.length ) {

					// Run callback and check for early termination
					if ( list[ firingIndex ].apply( memory[ 0 ], memory[ 1 ] ) === false &&
						options.stopOnFalse ) {

						// Jump to end and forget the data so .add doesn't re-fire
						firingIndex = list.length;
						memory = false;
					}
				}
			}

			// Forget the data if we're done with it
			if ( !options.memory ) {
				memory = false;
			}

			firing = false;

			// Clean up if we're done firing for good
			if ( locked ) {

				// Keep an empty list if we have data for future add calls
				if ( memory ) {
					list = [];

				// Otherwise, this object is spent
				} else {
					list = "";
				}
			}
		},

		// Actual Callbacks object
		self = {

			// Add a callback or a collection of callbacks to the list
			add: function() {
				if ( list ) {

					// If we have memory from a past run, we should fire after adding
					if ( memory && !firing ) {
						firingIndex = list.length - 1;
						queue.push( memory );
					}

					( function add( args ) {
						jQuery.each( args, function( _, arg ) {
							if ( jQuery.isFunction( arg ) ) {
								if ( !options.unique || !self.has( arg ) ) {
									list.push( arg );
								}
							} else if ( arg && arg.length && jQuery.type( arg ) !== "string" ) {

								// Inspect recursively
								add( arg );
							}
						} );
					} )( arguments );

					if ( memory && !firing ) {
						fire();
					}
				}
				return this;
			},

			// Remove a callback from the list
			remove: function() {
				jQuery.each( arguments, function( _, arg ) {
					var index;
					while ( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
						list.splice( index, 1 );

						// Handle firing indexes
						if ( index <= firingIndex ) {
							firingIndex--;
						}
					}
				} );
				return this;
			},

			// Check if a given callback is in the list.
			// If no argument is given, return whether or not list has callbacks attached.
			has: function( fn ) {
				return fn ?
					jQuery.inArray( fn, list ) > -1 :
					list.length > 0;
			},

			// Remove all callbacks from the list
			empty: function() {
				if ( list ) {
					list = [];
				}
				return this;
			},

			// Disable .fire and .add
			// Abort any current/pending executions
			// Clear all callbacks and values
			disable: function() {
				locked = queue = [];
				list = memory = "";
				return this;
			},
			disabled: function() {
				return !list;
			},

			// Disable .fire
			// Also disable .add unless we have memory (since it would have no effect)
			// Abort any pending executions
			lock: function() {
				locked = queue = [];
				if ( !memory && !firing ) {
					list = memory = "";
				}
				return this;
			},
			locked: function() {
				return !!locked;
			},

			// Call all callbacks with the given context and arguments
			fireWith: function( context, args ) {
				if ( !locked ) {
					args = args || [];
					args = [ context, args.slice ? args.slice() : args ];
					queue.push( args );
					if ( !firing ) {
						fire();
					}
				}
				return this;
			},

			// Call all the callbacks with the given arguments
			fire: function() {
				self.fireWith( this, arguments );
				return this;
			},

			// To know if the callbacks have already been called at least once
			fired: function() {
				return !!fired;
			}
		};

	return self;
};


function Identity( v ) {
	return v;
}
function Thrower( ex ) {
	throw ex;
}

function adoptValue( value, resolve, reject, noValue ) {
	var method;

	try {

		// Check for promise aspect first to privilege synchronous behavior
		if ( value && jQuery.isFunction( ( method = value.promise ) ) ) {
			method.call( value ).done( resolve ).fail( reject );

		// Other thenables
		} else if ( value && jQuery.isFunction( ( method = value.then ) ) ) {
			method.call( value, resolve, reject );

		// Other non-thenables
		} else {

			// Control `resolve` arguments by letting Array#slice cast boolean `noValue` to integer:
			// * false: [ value ].slice( 0 ) => resolve( value )
			// * true: [ value ].slice( 1 ) => resolve()
			resolve.apply( undefined, [ value ].slice( noValue ) );
		}

	// For Promises/A+, convert exceptions into rejections
	// Since jQuery.when doesn't unwrap thenables, we can skip the extra checks appearing in
	// Deferred#then to conditionally suppress rejection.
	} catch ( value ) {

		// Support: Android 4.0 only
		// Strict mode functions invoked without .call/.apply get global-object context
		reject.apply( undefined, [ value ] );
	}
}

jQuery.extend( {

	Deferred: function( func ) {
		var tuples = [

				// action, add listener, callbacks,
				// ... .then handlers, argument index, [final state]
				[ "notify", "progress", jQuery.Callbacks( "memory" ),
					jQuery.Callbacks( "memory" ), 2 ],
				[ "resolve", "done", jQuery.Callbacks( "once memory" ),
					jQuery.Callbacks( "once memory" ), 0, "resolved" ],
				[ "reject", "fail", jQuery.Callbacks( "once memory" ),
					jQuery.Callbacks( "once memory" ), 1, "rejected" ]
			],
			state = "pending",
			promise = {
				state: function() {
					return state;
				},
				always: function() {
					deferred.done( arguments ).fail( arguments );
					return this;
				},
				"catch": function( fn ) {
					return promise.then( null, fn );
				},

				// Keep pipe for back-compat
				pipe: function( /* fnDone, fnFail, fnProgress */ ) {
					var fns = arguments;

					return jQuery.Deferred( function( newDefer ) {
						jQuery.each( tuples, function( i, tuple ) {

							// Map tuples (progress, done, fail) to arguments (done, fail, progress)
							var fn = jQuery.isFunction( fns[ tuple[ 4 ] ] ) && fns[ tuple[ 4 ] ];

							// deferred.progress(function() { bind to newDefer or newDefer.notify })
							// deferred.done(function() { bind to newDefer or newDefer.resolve })
							// deferred.fail(function() { bind to newDefer or newDefer.reject })
							deferred[ tuple[ 1 ] ]( function() {
								var returned = fn && fn.apply( this, arguments );
								if ( returned && jQuery.isFunction( returned.promise ) ) {
									returned.promise()
										.progress( newDefer.notify )
										.done( newDefer.resolve )
										.fail( newDefer.reject );
								} else {
									newDefer[ tuple[ 0 ] + "With" ](
										this,
										fn ? [ returned ] : arguments
									);
								}
							} );
						} );
						fns = null;
					} ).promise();
				},
				then: function( onFulfilled, onRejected, onProgress ) {
					var maxDepth = 0;
					function resolve( depth, deferred, handler, special ) {
						return function() {
							var that = this,
								args = arguments,
								mightThrow = function() {
									var returned, then;

									// Support: Promises/A+ section 2.3.3.3.3
									// https://promisesaplus.com/#point-59
									// Ignore double-resolution attempts
									if ( depth < maxDepth ) {
										return;
									}

									returned = handler.apply( that, args );

									// Support: Promises/A+ section 2.3.1
									// https://promisesaplus.com/#point-48
									if ( returned === deferred.promise() ) {
										throw new TypeError( "Thenable self-resolution" );
									}

									// Support: Promises/A+ sections 2.3.3.1, 3.5
									// https://promisesaplus.com/#point-54
									// https://promisesaplus.com/#point-75
									// Retrieve `then` only once
									then = returned &&

										// Support: Promises/A+ section 2.3.4
										// https://promisesaplus.com/#point-64
										// Only check objects and functions for thenability
										( typeof returned === "object" ||
											typeof returned === "function" ) &&
										returned.then;

									// Handle a returned thenable
									if ( jQuery.isFunction( then ) ) {

										// Special processors (notify) just wait for resolution
										if ( special ) {
											then.call(
												returned,
												resolve( maxDepth, deferred, Identity, special ),
												resolve( maxDepth, deferred, Thrower, special )
											);

										// Normal processors (resolve) also hook into progress
										} else {

											// ...and disregard older resolution values
											maxDepth++;

											then.call(
												returned,
												resolve( maxDepth, deferred, Identity, special ),
												resolve( maxDepth, deferred, Thrower, special ),
												resolve( maxDepth, deferred, Identity,
													deferred.notifyWith )
											);
										}

									// Handle all other returned values
									} else {

										// Only substitute handlers pass on context
										// and multiple values (non-spec behavior)
										if ( handler !== Identity ) {
											that = undefined;
											args = [ returned ];
										}

										// Process the value(s)
										// Default process is resolve
										( special || deferred.resolveWith )( that, args );
									}
								},

								// Only normal processors (resolve) catch and reject exceptions
								process = special ?
									mightThrow :
									function() {
										try {
											mightThrow();
										} catch ( e ) {

											if ( jQuery.Deferred.exceptionHook ) {
												jQuery.Deferred.exceptionHook( e,
													process.stackTrace );
											}

											// Support: Promises/A+ section 2.3.3.3.4.1
											// https://promisesaplus.com/#point-61
											// Ignore post-resolution exceptions
											if ( depth + 1 >= maxDepth ) {

												// Only substitute handlers pass on context
												// and multiple values (non-spec behavior)
												if ( handler !== Thrower ) {
													that = undefined;
													args = [ e ];
												}

												deferred.rejectWith( that, args );
											}
										}
									};

							// Support: Promises/A+ section 2.3.3.3.1
							// https://promisesaplus.com/#point-57
							// Re-resolve promises immediately to dodge false rejection from
							// subsequent errors
							if ( depth ) {
								process();
							} else {

								// Call an optional hook to record the stack, in case of exception
								// since it's otherwise lost when execution goes async
								if ( jQuery.Deferred.getStackHook ) {
									process.stackTrace = jQuery.Deferred.getStackHook();
								}
								window.setTimeout( process );
							}
						};
					}

					return jQuery.Deferred( function( newDefer ) {

						// progress_handlers.add( ... )
						tuples[ 0 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								jQuery.isFunction( onProgress ) ?
									onProgress :
									Identity,
								newDefer.notifyWith
							)
						);

						// fulfilled_handlers.add( ... )
						tuples[ 1 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								jQuery.isFunction( onFulfilled ) ?
									onFulfilled :
									Identity
							)
						);

						// rejected_handlers.add( ... )
						tuples[ 2 ][ 3 ].add(
							resolve(
								0,
								newDefer,
								jQuery.isFunction( onRejected ) ?
									onRejected :
									Thrower
							)
						);
					} ).promise();
				},

				// Get a promise for this deferred
				// If obj is provided, the promise aspect is added to the object
				promise: function( obj ) {
					return obj != null ? jQuery.extend( obj, promise ) : promise;
				}
			},
			deferred = {};

		// Add list-specific methods
		jQuery.each( tuples, function( i, tuple ) {
			var list = tuple[ 2 ],
				stateString = tuple[ 5 ];

			// promise.progress = list.add
			// promise.done = list.add
			// promise.fail = list.add
			promise[ tuple[ 1 ] ] = list.add;

			// Handle state
			if ( stateString ) {
				list.add(
					function() {

						// state = "resolved" (i.e., fulfilled)
						// state = "rejected"
						state = stateString;
					},

					// rejected_callbacks.disable
					// fulfilled_callbacks.disable
					tuples[ 3 - i ][ 2 ].disable,

					// progress_callbacks.lock
					tuples[ 0 ][ 2 ].lock
				);
			}

			// progress_handlers.fire
			// fulfilled_handlers.fire
			// rejected_handlers.fire
			list.add( tuple[ 3 ].fire );

			// deferred.notify = function() { deferred.notifyWith(...) }
			// deferred.resolve = function() { deferred.resolveWith(...) }
			// deferred.reject = function() { deferred.rejectWith(...) }
			deferred[ tuple[ 0 ] ] = function() {
				deferred[ tuple[ 0 ] + "With" ]( this === deferred ? undefined : this, arguments );
				return this;
			};

			// deferred.notifyWith = list.fireWith
			// deferred.resolveWith = list.fireWith
			// deferred.rejectWith = list.fireWith
			deferred[ tuple[ 0 ] + "With" ] = list.fireWith;
		} );

		// Make the deferred a promise
		promise.promise( deferred );

		// Call given func if any
		if ( func ) {
			func.call( deferred, deferred );
		}

		// All done!
		return deferred;
	},

	// Deferred helper
	when: function( singleValue ) {
		var

			// count of uncompleted subordinates
			remaining = arguments.length,

			// count of unprocessed arguments
			i = remaining,

			// subordinate fulfillment data
			resolveContexts = Array( i ),
			resolveValues = slice.call( arguments ),

			// the master Deferred
			master = jQuery.Deferred(),

			// subordinate callback factory
			updateFunc = function( i ) {
				return function( value ) {
					resolveContexts[ i ] = this;
					resolveValues[ i ] = arguments.length > 1 ? slice.call( arguments ) : value;
					if ( !( --remaining ) ) {
						master.resolveWith( resolveContexts, resolveValues );
					}
				};
			};

		// Single- and empty arguments are adopted like Promise.resolve
		if ( remaining <= 1 ) {
			adoptValue( singleValue, master.done( updateFunc( i ) ).resolve, master.reject,
				!remaining );

			// Use .then() to unwrap secondary thenables (cf. gh-3000)
			if ( master.state() === "pending" ||
				jQuery.isFunction( resolveValues[ i ] && resolveValues[ i ].then ) ) {

				return master.then();
			}
		}

		// Multiple arguments are aggregated like Promise.all array elements
		while ( i-- ) {
			adoptValue( resolveValues[ i ], updateFunc( i ), master.reject );
		}

		return master.promise();
	}
} );


// These usually indicate a programmer mistake during development,
// warn about them ASAP rather than swallowing them by default.
var rerrorNames = /^(Eval|Internal|Range|Reference|Syntax|Type|URI)Error$/;

jQuery.Deferred.exceptionHook = function( error, stack ) {

	// Support: IE 8 - 9 only
	// Console exists when dev tools are open, which can happen at any time
	if ( window.console && window.console.warn && error && rerrorNames.test( error.name ) ) {
		window.console.warn( "jQuery.Deferred exception: " + error.message, error.stack, stack );
	}
};




jQuery.readyException = function( error ) {
	window.setTimeout( function() {
		throw error;
	} );
};




// The deferred used on DOM ready
var readyList = jQuery.Deferred();

jQuery.fn.ready = function( fn ) {

	readyList
		.then( fn )

		// Wrap jQuery.readyException in a function so that the lookup
		// happens at the time of error handling instead of callback
		// registration.
		.catch( function( error ) {
			jQuery.readyException( error );
		} );

	return this;
};

jQuery.extend( {

	// Is the DOM ready to be used? Set to true once it occurs.
	isReady: false,

	// A counter to track how many items to wait for before
	// the ready event fires. See #6781
	readyWait: 1,

	// Handle when the DOM is ready
	ready: function( wait ) {

		// Abort if there are pending holds or we're already ready
		if ( wait === true ? --jQuery.readyWait : jQuery.isReady ) {
			return;
		}

		// Remember that the DOM is ready
		jQuery.isReady = true;

		// If a normal DOM Ready event fired, decrement, and wait if need be
		if ( wait !== true && --jQuery.readyWait > 0 ) {
			return;
		}

		// If there are functions bound, to execute
		readyList.resolveWith( document, [ jQuery ] );
	}
} );

jQuery.ready.then = readyList.then;

// The ready event handler and self cleanup method
function completed() {
	document.removeEventListener( "DOMContentLoaded", completed );
	window.removeEventListener( "load", completed );
	jQuery.ready();
}

// Catch cases where $(document).ready() is called
// after the browser event has already occurred.
// Support: IE <=9 - 10 only
// Older IE sometimes signals "interactive" too soon
if ( document.readyState === "complete" ||
	( document.readyState !== "loading" && !document.documentElement.doScroll ) ) {

	// Handle it asynchronously to allow scripts the opportunity to delay ready
	window.setTimeout( jQuery.ready );

} else {

	// Use the handy event callback
	document.addEventListener( "DOMContentLoaded", completed );

	// A fallback to window.onload, that will always work
	window.addEventListener( "load", completed );
}




// Multifunctional method to get and set values of a collection
// The value/s can optionally be executed if it's a function
var access = function( elems, fn, key, value, chainable, emptyGet, raw ) {
	var i = 0,
		len = elems.length,
		bulk = key == null;

	// Sets many values
	if ( jQuery.type( key ) === "object" ) {
		chainable = true;
		for ( i in key ) {
			access( elems, fn, i, key[ i ], true, emptyGet, raw );
		}

	// Sets one value
	} else if ( value !== undefined ) {
		chainable = true;

		if ( !jQuery.isFunction( value ) ) {
			raw = true;
		}

		if ( bulk ) {

			// Bulk operations run against the entire set
			if ( raw ) {
				fn.call( elems, value );
				fn = null;

			// ...except when executing function values
			} else {
				bulk = fn;
				fn = function( elem, key, value ) {
					return bulk.call( jQuery( elem ), value );
				};
			}
		}

		if ( fn ) {
			for ( ; i < len; i++ ) {
				fn(
					elems[ i ], key, raw ?
					value :
					value.call( elems[ i ], i, fn( elems[ i ], key ) )
				);
			}
		}
	}

	if ( chainable ) {
		return elems;
	}

	// Gets
	if ( bulk ) {
		return fn.call( elems );
	}

	return len ? fn( elems[ 0 ], key ) : emptyGet;
};
var acceptData = function( owner ) {

	// Accepts only:
	//  - Node
	//    - Node.ELEMENT_NODE
	//    - Node.DOCUMENT_NODE
	//  - Object
	//    - Any
	return owner.nodeType === 1 || owner.nodeType === 9 || !( +owner.nodeType );
};




function Data() {
	this.expando = jQuery.expando + Data.uid++;
}

Data.uid = 1;

Data.prototype = {

	cache: function( owner ) {

		// Check if the owner object already has a cache
		var value = owner[ this.expando ];

		// If not, create one
		if ( !value ) {
			value = {};

			// We can accept data for non-element nodes in modern browsers,
			// but we should not, see #8335.
			// Always return an empty object.
			if ( acceptData( owner ) ) {

				// If it is a node unlikely to be stringify-ed or looped over
				// use plain assignment
				if ( owner.nodeType ) {
					owner[ this.expando ] = value;

				// Otherwise secure it in a non-enumerable property
				// configurable must be true to allow the property to be
				// deleted when data is removed
				} else {
					Object.defineProperty( owner, this.expando, {
						value: value,
						configurable: true
					} );
				}
			}
		}

		return value;
	},
	set: function( owner, data, value ) {
		var prop,
			cache = this.cache( owner );

		// Handle: [ owner, key, value ] args
		// Always use camelCase key (gh-2257)
		if ( typeof data === "string" ) {
			cache[ jQuery.camelCase( data ) ] = value;

		// Handle: [ owner, { properties } ] args
		} else {

			// Copy the properties one-by-one to the cache object
			for ( prop in data ) {
				cache[ jQuery.camelCase( prop ) ] = data[ prop ];
			}
		}
		return cache;
	},
	get: function( owner, key ) {
		return key === undefined ?
			this.cache( owner ) :

			// Always use camelCase key (gh-2257)
			owner[ this.expando ] && owner[ this.expando ][ jQuery.camelCase( key ) ];
	},
	access: function( owner, key, value ) {

		// In cases where either:
		//
		//   1. No key was specified
		//   2. A string key was specified, but no value provided
		//
		// Take the "read" path and allow the get method to determine
		// which value to return, respectively either:
		//
		//   1. The entire cache object
		//   2. The data stored at the key
		//
		if ( key === undefined ||
				( ( key && typeof key === "string" ) && value === undefined ) ) {

			return this.get( owner, key );
		}

		// When the key is not a string, or both a key and value
		// are specified, set or extend (existing objects) with either:
		//
		//   1. An object of properties
		//   2. A key and value
		//
		this.set( owner, key, value );

		// Since the "set" path can have two possible entry points
		// return the expected data based on which path was taken[*]
		return value !== undefined ? value : key;
	},
	remove: function( owner, key ) {
		var i,
			cache = owner[ this.expando ];

		if ( cache === undefined ) {
			return;
		}

		if ( key !== undefined ) {

			// Support array or space separated string of keys
			if ( Array.isArray( key ) ) {

				// If key is an array of keys...
				// We always set camelCase keys, so remove that.
				key = key.map( jQuery.camelCase );
			} else {
				key = jQuery.camelCase( key );

				// If a key with the spaces exists, use it.
				// Otherwise, create an array by matching non-whitespace
				key = key in cache ?
					[ key ] :
					( key.match( rnothtmlwhite ) || [] );
			}

			i = key.length;

			while ( i-- ) {
				delete cache[ key[ i ] ];
			}
		}

		// Remove the expando if there's no more data
		if ( key === undefined || jQuery.isEmptyObject( cache ) ) {

			// Support: Chrome <=35 - 45
			// Webkit & Blink performance suffers when deleting properties
			// from DOM nodes, so set to undefined instead
			// https://bugs.chromium.org/p/chromium/issues/detail?id=378607 (bug restricted)
			if ( owner.nodeType ) {
				owner[ this.expando ] = undefined;
			} else {
				delete owner[ this.expando ];
			}
		}
	},
	hasData: function( owner ) {
		var cache = owner[ this.expando ];
		return cache !== undefined && !jQuery.isEmptyObject( cache );
	}
};
var dataPriv = new Data();

var dataUser = new Data();



//	Implementation Summary
//
//	1. Enforce API surface and semantic compatibility with 1.9.x branch
//	2. Improve the module's maintainability by reducing the storage
//		paths to a single mechanism.
//	3. Use the same single mechanism to support "private" and "user" data.
//	4. _Never_ expose "private" data to user code (TODO: Drop _data, _removeData)
//	5. Avoid exposing implementation details on user objects (eg. expando properties)
//	6. Provide a clear path for implementation upgrade to WeakMap in 2014

var rbrace = /^(?:\{[\w\W]*\}|\[[\w\W]*\])$/,
	rmultiDash = /[A-Z]/g;

function getData( data ) {
	if ( data === "true" ) {
		return true;
	}

	if ( data === "false" ) {
		return false;
	}

	if ( data === "null" ) {
		return null;
	}

	// Only convert to a number if it doesn't change the string
	if ( data === +data + "" ) {
		return +data;
	}

	if ( rbrace.test( data ) ) {
		return JSON.parse( data );
	}

	return data;
}

function dataAttr( elem, key, data ) {
	var name;

	// If nothing was found internally, try to fetch any
	// data from the HTML5 data-* attribute
	if ( data === undefined && elem.nodeType === 1 ) {
		name = "data-" + key.replace( rmultiDash, "-$&" ).toLowerCase();
		data = elem.getAttribute( name );

		if ( typeof data === "string" ) {
			try {
				data = getData( data );
			} catch ( e ) {}

			// Make sure we set the data so it isn't changed later
			dataUser.set( elem, key, data );
		} else {
			data = undefined;
		}
	}
	return data;
}

jQuery.extend( {
	hasData: function( elem ) {
		return dataUser.hasData( elem ) || dataPriv.hasData( elem );
	},

	data: function( elem, name, data ) {
		return dataUser.access( elem, name, data );
	},

	removeData: function( elem, name ) {
		dataUser.remove( elem, name );
	},

	// TODO: Now that all calls to _data and _removeData have been replaced
	// with direct calls to dataPriv methods, these can be deprecated.
	_data: function( elem, name, data ) {
		return dataPriv.access( elem, name, data );
	},

	_removeData: function( elem, name ) {
		dataPriv.remove( elem, name );
	}
} );

jQuery.fn.extend( {
	data: function( key, value ) {
		var i, name, data,
			elem = this[ 0 ],
			attrs = elem && elem.attributes;

		// Gets all values
		if ( key === undefined ) {
			if ( this.length ) {
				data = dataUser.get( elem );

				if ( elem.nodeType === 1 && !dataPriv.get( elem, "hasDataAttrs" ) ) {
					i = attrs.length;
					while ( i-- ) {

						// Support: IE 11 only
						// The attrs elements can be null (#14894)
						if ( attrs[ i ] ) {
							name = attrs[ i ].name;
							if ( name.indexOf( "data-" ) === 0 ) {
								name = jQuery.camelCase( name.slice( 5 ) );
								dataAttr( elem, name, data[ name ] );
							}
						}
					}
					dataPriv.set( elem, "hasDataAttrs", true );
				}
			}

			return data;
		}

		// Sets multiple values
		if ( typeof key === "object" ) {
			return this.each( function() {
				dataUser.set( this, key );
			} );
		}

		return access( this, function( value ) {
			var data;

			// The calling jQuery object (element matches) is not empty
			// (and therefore has an element appears at this[ 0 ]) and the
			// `value` parameter was not undefined. An empty jQuery object
			// will result in `undefined` for elem = this[ 0 ] which will
			// throw an exception if an attempt to read a data cache is made.
			if ( elem && value === undefined ) {

				// Attempt to get data from the cache
				// The key will always be camelCased in Data
				data = dataUser.get( elem, key );
				if ( data !== undefined ) {
					return data;
				}

				// Attempt to "discover" the data in
				// HTML5 custom data-* attrs
				data = dataAttr( elem, key );
				if ( data !== undefined ) {
					return data;
				}

				// We tried really hard, but the data doesn't exist.
				return;
			}

			// Set the data...
			this.each( function() {

				// We always store the camelCased key
				dataUser.set( this, key, value );
			} );
		}, null, value, arguments.length > 1, null, true );
	},

	removeData: function( key ) {
		return this.each( function() {
			dataUser.remove( this, key );
		} );
	}
} );


jQuery.extend( {
	queue: function( elem, type, data ) {
		var queue;

		if ( elem ) {
			type = ( type || "fx" ) + "queue";
			queue = dataPriv.get( elem, type );

			// Speed up dequeue by getting out quickly if this is just a lookup
			if ( data ) {
				if ( !queue || Array.isArray( data ) ) {
					queue = dataPriv.access( elem, type, jQuery.makeArray( data ) );
				} else {
					queue.push( data );
				}
			}
			return queue || [];
		}
	},

	dequeue: function( elem, type ) {
		type = type || "fx";

		var queue = jQuery.queue( elem, type ),
			startLength = queue.length,
			fn = queue.shift(),
			hooks = jQuery._queueHooks( elem, type ),
			next = function() {
				jQuery.dequeue( elem, type );
			};

		// If the fx queue is dequeued, always remove the progress sentinel
		if ( fn === "inprogress" ) {
			fn = queue.shift();
			startLength--;
		}

		if ( fn ) {

			// Add a progress sentinel to prevent the fx queue from being
			// automatically dequeued
			if ( type === "fx" ) {
				queue.unshift( "inprogress" );
			}

			// Clear up the last queue stop function
			delete hooks.stop;
			fn.call( elem, next, hooks );
		}

		if ( !startLength && hooks ) {
			hooks.empty.fire();
		}
	},

	// Not public - generate a queueHooks object, or return the current one
	_queueHooks: function( elem, type ) {
		var key = type + "queueHooks";
		return dataPriv.get( elem, key ) || dataPriv.access( elem, key, {
			empty: jQuery.Callbacks( "once memory" ).add( function() {
				dataPriv.remove( elem, [ type + "queue", key ] );
			} )
		} );
	}
} );

jQuery.fn.extend( {
	queue: function( type, data ) {
		var setter = 2;

		if ( typeof type !== "string" ) {
			data = type;
			type = "fx";
			setter--;
		}

		if ( arguments.length < setter ) {
			return jQuery.queue( this[ 0 ], type );
		}

		return data === undefined ?
			this :
			this.each( function() {
				var queue = jQuery.queue( this, type, data );

				// Ensure a hooks for this queue
				jQuery._queueHooks( this, type );

				if ( type === "fx" && queue[ 0 ] !== "inprogress" ) {
					jQuery.dequeue( this, type );
				}
			} );
	},
	dequeue: function( type ) {
		return this.each( function() {
			jQuery.dequeue( this, type );
		} );
	},
	clearQueue: function( type ) {
		return this.queue( type || "fx", [] );
	},

	// Get a promise resolved when queues of a certain type
	// are emptied (fx is the type by default)
	promise: function( type, obj ) {
		var tmp,
			count = 1,
			defer = jQuery.Deferred(),
			elements = this,
			i = this.length,
			resolve = function() {
				if ( !( --count ) ) {
					defer.resolveWith( elements, [ elements ] );
				}
			};

		if ( typeof type !== "string" ) {
			obj = type;
			type = undefined;
		}
		type = type || "fx";

		while ( i-- ) {
			tmp = dataPriv.get( elements[ i ], type + "queueHooks" );
			if ( tmp && tmp.empty ) {
				count++;
				tmp.empty.add( resolve );
			}
		}
		resolve();
		return defer.promise( obj );
	}
} );
var pnum = ( /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/ ).source;

var rcssNum = new RegExp( "^(?:([+-])=|)(" + pnum + ")([a-z%]*)$", "i" );


var cssExpand = [ "Top", "Right", "Bottom", "Left" ];

var isHiddenWithinTree = function( elem, el ) {

		// isHiddenWithinTree might be called from jQuery#filter function;
		// in that case, element will be second argument
		elem = el || elem;

		// Inline style trumps all
		return elem.style.display === "none" ||
			elem.style.display === "" &&

			// Otherwise, check computed style
			// Support: Firefox <=43 - 45
			// Disconnected elements can have computed display: none, so first confirm that elem is
			// in the document.
			jQuery.contains( elem.ownerDocument, elem ) &&

			jQuery.css( elem, "display" ) === "none";
	};

var swap = function( elem, options, callback, args ) {
	var ret, name,
		old = {};

	// Remember the old values, and insert the new ones
	for ( name in options ) {
		old[ name ] = elem.style[ name ];
		elem.style[ name ] = options[ name ];
	}

	ret = callback.apply( elem, args || [] );

	// Revert the old values
	for ( name in options ) {
		elem.style[ name ] = old[ name ];
	}

	return ret;
};




function adjustCSS( elem, prop, valueParts, tween ) {
	var adjusted,
		scale = 1,
		maxIterations = 20,
		currentValue = tween ?
			function() {
				return tween.cur();
			} :
			function() {
				return jQuery.css( elem, prop, "" );
			},
		initial = currentValue(),
		unit = valueParts && valueParts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),

		// Starting value computation is required for potential unit mismatches
		initialInUnit = ( jQuery.cssNumber[ prop ] || unit !== "px" && +initial ) &&
			rcssNum.exec( jQuery.css( elem, prop ) );

	if ( initialInUnit && initialInUnit[ 3 ] !== unit ) {

		// Trust units reported by jQuery.css
		unit = unit || initialInUnit[ 3 ];

		// Make sure we update the tween properties later on
		valueParts = valueParts || [];

		// Iteratively approximate from a nonzero starting point
		initialInUnit = +initial || 1;

		do {

			// If previous iteration zeroed out, double until we get *something*.
			// Use string for doubling so we don't accidentally see scale as unchanged below
			scale = scale || ".5";

			// Adjust and apply
			initialInUnit = initialInUnit / scale;
			jQuery.style( elem, prop, initialInUnit + unit );

		// Update scale, tolerating zero or NaN from tween.cur()
		// Break the loop if scale is unchanged or perfect, or if we've just had enough.
		} while (
			scale !== ( scale = currentValue() / initial ) && scale !== 1 && --maxIterations
		);
	}

	if ( valueParts ) {
		initialInUnit = +initialInUnit || +initial || 0;

		// Apply relative offset (+=/-=) if specified
		adjusted = valueParts[ 1 ] ?
			initialInUnit + ( valueParts[ 1 ] + 1 ) * valueParts[ 2 ] :
			+valueParts[ 2 ];
		if ( tween ) {
			tween.unit = unit;
			tween.start = initialInUnit;
			tween.end = adjusted;
		}
	}
	return adjusted;
}


var defaultDisplayMap = {};

function getDefaultDisplay( elem ) {
	var temp,
		doc = elem.ownerDocument,
		nodeName = elem.nodeName,
		display = defaultDisplayMap[ nodeName ];

	if ( display ) {
		return display;
	}

	temp = doc.body.appendChild( doc.createElement( nodeName ) );
	display = jQuery.css( temp, "display" );

	temp.parentNode.removeChild( temp );

	if ( display === "none" ) {
		display = "block";
	}
	defaultDisplayMap[ nodeName ] = display;

	return display;
}

function showHide( elements, show ) {
	var display, elem,
		values = [],
		index = 0,
		length = elements.length;

	// Determine new display value for elements that need to change
	for ( ; index < length; index++ ) {
		elem = elements[ index ];
		if ( !elem.style ) {
			continue;
		}

		display = elem.style.display;
		if ( show ) {

			// Since we force visibility upon cascade-hidden elements, an immediate (and slow)
			// check is required in this first loop unless we have a nonempty display value (either
			// inline or about-to-be-restored)
			if ( display === "none" ) {
				values[ index ] = dataPriv.get( elem, "display" ) || null;
				if ( !values[ index ] ) {
					elem.style.display = "";
				}
			}
			if ( elem.style.display === "" && isHiddenWithinTree( elem ) ) {
				values[ index ] = getDefaultDisplay( elem );
			}
		} else {
			if ( display !== "none" ) {
				values[ index ] = "none";

				// Remember what we're overwriting
				dataPriv.set( elem, "display", display );
			}
		}
	}

	// Set the display of the elements in a second loop to avoid constant reflow
	for ( index = 0; index < length; index++ ) {
		if ( values[ index ] != null ) {
			elements[ index ].style.display = values[ index ];
		}
	}

	return elements;
}

jQuery.fn.extend( {
	show: function() {
		return showHide( this, true );
	},
	hide: function() {
		return showHide( this );
	},
	toggle: function( state ) {
		if ( typeof state === "boolean" ) {
			return state ? this.show() : this.hide();
		}

		return this.each( function() {
			if ( isHiddenWithinTree( this ) ) {
				jQuery( this ).show();
			} else {
				jQuery( this ).hide();
			}
		} );
	}
} );
var rcheckableType = ( /^(?:checkbox|radio)$/i );

var rtagName = ( /<([a-z][^\/\0>\x20\t\r\n\f]+)/i );

var rscriptType = ( /^$|\/(?:java|ecma)script/i );



// We have to close these tags to support XHTML (#13200)
var wrapMap = {

	// Support: IE <=9 only
	option: [ 1, "<select multiple='multiple'>", "</select>" ],

	// XHTML parsers do not magically insert elements in the
	// same way that tag soup parsers do. So we cannot shorten
	// this by omitting <tbody> or other required elements.
	thead: [ 1, "<table>", "</table>" ],
	col: [ 2, "<table><colgroup>", "</colgroup></table>" ],
	tr: [ 2, "<table><tbody>", "</tbody></table>" ],
	td: [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ],

	_default: [ 0, "", "" ]
};

// Support: IE <=9 only
wrapMap.optgroup = wrapMap.option;

wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
wrapMap.th = wrapMap.td;


function getAll( context, tag ) {

	// Support: IE <=9 - 11 only
	// Use typeof to avoid zero-argument method invocation on host objects (#15151)
	var ret;

	if ( typeof context.getElementsByTagName !== "undefined" ) {
		ret = context.getElementsByTagName( tag || "*" );

	} else if ( typeof context.querySelectorAll !== "undefined" ) {
		ret = context.querySelectorAll( tag || "*" );

	} else {
		ret = [];
	}

	if ( tag === undefined || tag && nodeName( context, tag ) ) {
		return jQuery.merge( [ context ], ret );
	}

	return ret;
}


// Mark scripts as having already been evaluated
function setGlobalEval( elems, refElements ) {
	var i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		dataPriv.set(
			elems[ i ],
			"globalEval",
			!refElements || dataPriv.get( refElements[ i ], "globalEval" )
		);
	}
}


var rhtml = /<|&#?\w+;/;

function buildFragment( elems, context, scripts, selection, ignored ) {
	var elem, tmp, tag, wrap, contains, j,
		fragment = context.createDocumentFragment(),
		nodes = [],
		i = 0,
		l = elems.length;

	for ( ; i < l; i++ ) {
		elem = elems[ i ];

		if ( elem || elem === 0 ) {

			// Add nodes directly
			if ( jQuery.type( elem ) === "object" ) {

				// Support: Android <=4.0 only, PhantomJS 1 only
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, elem.nodeType ? [ elem ] : elem );

			// Convert non-html into a text node
			} else if ( !rhtml.test( elem ) ) {
				nodes.push( context.createTextNode( elem ) );

			// Convert html into DOM nodes
			} else {
				tmp = tmp || fragment.appendChild( context.createElement( "div" ) );

				// Deserialize a standard representation
				tag = ( rtagName.exec( elem ) || [ "", "" ] )[ 1 ].toLowerCase();
				wrap = wrapMap[ tag ] || wrapMap._default;
				tmp.innerHTML = wrap[ 1 ] + jQuery.htmlPrefilter( elem ) + wrap[ 2 ];

				// Descend through wrappers to the right content
				j = wrap[ 0 ];
				while ( j-- ) {
					tmp = tmp.lastChild;
				}

				// Support: Android <=4.0 only, PhantomJS 1 only
				// push.apply(_, arraylike) throws on ancient WebKit
				jQuery.merge( nodes, tmp.childNodes );

				// Remember the top-level container
				tmp = fragment.firstChild;

				// Ensure the created nodes are orphaned (#12392)
				tmp.textContent = "";
			}
		}
	}

	// Remove wrapper from fragment
	fragment.textContent = "";

	i = 0;
	while ( ( elem = nodes[ i++ ] ) ) {

		// Skip elements already in the context collection (trac-4087)
		if ( selection && jQuery.inArray( elem, selection ) > -1 ) {
			if ( ignored ) {
				ignored.push( elem );
			}
			continue;
		}

		contains = jQuery.contains( elem.ownerDocument, elem );

		// Append to fragment
		tmp = getAll( fragment.appendChild( elem ), "script" );

		// Preserve script evaluation history
		if ( contains ) {
			setGlobalEval( tmp );
		}

		// Capture executables
		if ( scripts ) {
			j = 0;
			while ( ( elem = tmp[ j++ ] ) ) {
				if ( rscriptType.test( elem.type || "" ) ) {
					scripts.push( elem );
				}
			}
		}
	}

	return fragment;
}


( function() {
	var fragment = document.createDocumentFragment(),
		div = fragment.appendChild( document.createElement( "div" ) ),
		input = document.createElement( "input" );

	// Support: Android 4.0 - 4.3 only
	// Check state lost if the name is set (#11217)
	// Support: Windows Web Apps (WWA)
	// `name` and `type` must use .setAttribute for WWA (#14901)
	input.setAttribute( "type", "radio" );
	input.setAttribute( "checked", "checked" );
	input.setAttribute( "name", "t" );

	div.appendChild( input );

	// Support: Android <=4.1 only
	// Older WebKit doesn't clone checked state correctly in fragments
	support.checkClone = div.cloneNode( true ).cloneNode( true ).lastChild.checked;

	// Support: IE <=11 only
	// Make sure textarea (and checkbox) defaultValue is properly cloned
	div.innerHTML = "<textarea>x</textarea>";
	support.noCloneChecked = !!div.cloneNode( true ).lastChild.defaultValue;
} )();
var documentElement = document.documentElement;



var
	rkeyEvent = /^key/,
	rmouseEvent = /^(?:mouse|pointer|contextmenu|drag|drop)|click/,
	rtypenamespace = /^([^.]*)(?:\.(.+)|)/;

function returnTrue() {
	return true;
}

function returnFalse() {
	return false;
}

// Support: IE <=9 only
// See #13393 for more info
function safeActiveElement() {
	try {
		return document.activeElement;
	} catch ( err ) { }
}

function on( elem, types, selector, data, fn, one ) {
	var origFn, type;

	// Types can be a map of types/handlers
	if ( typeof types === "object" ) {

		// ( types-Object, selector, data )
		if ( typeof selector !== "string" ) {

			// ( types-Object, data )
			data = data || selector;
			selector = undefined;
		}
		for ( type in types ) {
			on( elem, type, selector, data, types[ type ], one );
		}
		return elem;
	}

	if ( data == null && fn == null ) {

		// ( types, fn )
		fn = selector;
		data = selector = undefined;
	} else if ( fn == null ) {
		if ( typeof selector === "string" ) {

			// ( types, selector, fn )
			fn = data;
			data = undefined;
		} else {

			// ( types, data, fn )
			fn = data;
			data = selector;
			selector = undefined;
		}
	}
	if ( fn === false ) {
		fn = returnFalse;
	} else if ( !fn ) {
		return elem;
	}

	if ( one === 1 ) {
		origFn = fn;
		fn = function( event ) {

			// Can use an empty set, since event contains the info
			jQuery().off( event );
			return origFn.apply( this, arguments );
		};

		// Use same guid so caller can remove using origFn
		fn.guid = origFn.guid || ( origFn.guid = jQuery.guid++ );
	}
	return elem.each( function() {
		jQuery.event.add( this, types, fn, data, selector );
	} );
}

/*
 * Helper functions for managing events -- not part of the public interface.
 * Props to Dean Edwards' addEvent library for many of the ideas.
 */
jQuery.event = {

	global: {},

	add: function( elem, types, handler, data, selector ) {

		var handleObjIn, eventHandle, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.get( elem );

		// Don't attach events to noData or text/comment nodes (but allow plain objects)
		if ( !elemData ) {
			return;
		}

		// Caller can pass in an object of custom data in lieu of the handler
		if ( handler.handler ) {
			handleObjIn = handler;
			handler = handleObjIn.handler;
			selector = handleObjIn.selector;
		}

		// Ensure that invalid selectors throw exceptions at attach time
		// Evaluate against documentElement in case elem is a non-element node (e.g., document)
		if ( selector ) {
			jQuery.find.matchesSelector( documentElement, selector );
		}

		// Make sure that the handler has a unique ID, used to find/remove it later
		if ( !handler.guid ) {
			handler.guid = jQuery.guid++;
		}

		// Init the element's event structure and main handler, if this is the first
		if ( !( events = elemData.events ) ) {
			events = elemData.events = {};
		}
		if ( !( eventHandle = elemData.handle ) ) {
			eventHandle = elemData.handle = function( e ) {

				// Discard the second event of a jQuery.event.trigger() and
				// when an event is called after a page has unloaded
				return typeof jQuery !== "undefined" && jQuery.event.triggered !== e.type ?
					jQuery.event.dispatch.apply( elem, arguments ) : undefined;
			};
		}

		// Handle multiple events separated by a space
		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// There *must* be a type, no attaching namespace-only handlers
			if ( !type ) {
				continue;
			}

			// If event changes its type, use the special event handlers for the changed type
			special = jQuery.event.special[ type ] || {};

			// If selector defined, determine special event api type, otherwise given type
			type = ( selector ? special.delegateType : special.bindType ) || type;

			// Update special based on newly reset type
			special = jQuery.event.special[ type ] || {};

			// handleObj is passed to all event handlers
			handleObj = jQuery.extend( {
				type: type,
				origType: origType,
				data: data,
				handler: handler,
				guid: handler.guid,
				selector: selector,
				needsContext: selector && jQuery.expr.match.needsContext.test( selector ),
				namespace: namespaces.join( "." )
			}, handleObjIn );

			// Init the event handler queue if we're the first
			if ( !( handlers = events[ type ] ) ) {
				handlers = events[ type ] = [];
				handlers.delegateCount = 0;

				// Only use addEventListener if the special events handler returns false
				if ( !special.setup ||
					special.setup.call( elem, data, namespaces, eventHandle ) === false ) {

					if ( elem.addEventListener ) {
						elem.addEventListener( type, eventHandle );
					}
				}
			}

			if ( special.add ) {
				special.add.call( elem, handleObj );

				if ( !handleObj.handler.guid ) {
					handleObj.handler.guid = handler.guid;
				}
			}

			// Add to the element's handler list, delegates in front
			if ( selector ) {
				handlers.splice( handlers.delegateCount++, 0, handleObj );
			} else {
				handlers.push( handleObj );
			}

			// Keep track of which events have ever been used, for event optimization
			jQuery.event.global[ type ] = true;
		}

	},

	// Detach an event or set of events from an element
	remove: function( elem, types, handler, selector, mappedTypes ) {

		var j, origCount, tmp,
			events, t, handleObj,
			special, handlers, type, namespaces, origType,
			elemData = dataPriv.hasData( elem ) && dataPriv.get( elem );

		if ( !elemData || !( events = elemData.events ) ) {
			return;
		}

		// Once for each type.namespace in types; type may be omitted
		types = ( types || "" ).match( rnothtmlwhite ) || [ "" ];
		t = types.length;
		while ( t-- ) {
			tmp = rtypenamespace.exec( types[ t ] ) || [];
			type = origType = tmp[ 1 ];
			namespaces = ( tmp[ 2 ] || "" ).split( "." ).sort();

			// Unbind all events (on this namespace, if provided) for the element
			if ( !type ) {
				for ( type in events ) {
					jQuery.event.remove( elem, type + types[ t ], handler, selector, true );
				}
				continue;
			}

			special = jQuery.event.special[ type ] || {};
			type = ( selector ? special.delegateType : special.bindType ) || type;
			handlers = events[ type ] || [];
			tmp = tmp[ 2 ] &&
				new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" );

			// Remove matching events
			origCount = j = handlers.length;
			while ( j-- ) {
				handleObj = handlers[ j ];

				if ( ( mappedTypes || origType === handleObj.origType ) &&
					( !handler || handler.guid === handleObj.guid ) &&
					( !tmp || tmp.test( handleObj.namespace ) ) &&
					( !selector || selector === handleObj.selector ||
						selector === "**" && handleObj.selector ) ) {
					handlers.splice( j, 1 );

					if ( handleObj.selector ) {
						handlers.delegateCount--;
					}
					if ( special.remove ) {
						special.remove.call( elem, handleObj );
					}
				}
			}

			// Remove generic event handler if we removed something and no more handlers exist
			// (avoids potential for endless recursion during removal of special event handlers)
			if ( origCount && !handlers.length ) {
				if ( !special.teardown ||
					special.teardown.call( elem, namespaces, elemData.handle ) === false ) {

					jQuery.removeEvent( elem, type, elemData.handle );
				}

				delete events[ type ];
			}
		}

		// Remove data and the expando if it's no longer used
		if ( jQuery.isEmptyObject( events ) ) {
			dataPriv.remove( elem, "handle events" );
		}
	},

	dispatch: function( nativeEvent ) {

		// Make a writable jQuery.Event from the native event object
		var event = jQuery.event.fix( nativeEvent );

		var i, j, ret, matched, handleObj, handlerQueue,
			args = new Array( arguments.length ),
			handlers = ( dataPriv.get( this, "events" ) || {} )[ event.type ] || [],
			special = jQuery.event.special[ event.type ] || {};

		// Use the fix-ed jQuery.Event rather than the (read-only) native event
		args[ 0 ] = event;

		for ( i = 1; i < arguments.length; i++ ) {
			args[ i ] = arguments[ i ];
		}

		event.delegateTarget = this;

		// Call the preDispatch hook for the mapped type, and let it bail if desired
		if ( special.preDispatch && special.preDispatch.call( this, event ) === false ) {
			return;
		}

		// Determine handlers
		handlerQueue = jQuery.event.handlers.call( this, event, handlers );

		// Run delegates first; they may want to stop propagation beneath us
		i = 0;
		while ( ( matched = handlerQueue[ i++ ] ) && !event.isPropagationStopped() ) {
			event.currentTarget = matched.elem;

			j = 0;
			while ( ( handleObj = matched.handlers[ j++ ] ) &&
				!event.isImmediatePropagationStopped() ) {

				// Triggered event must either 1) have no namespace, or 2) have namespace(s)
				// a subset or equal to those in the bound event (both can have no namespace).
				if ( !event.rnamespace || event.rnamespace.test( handleObj.namespace ) ) {

					event.handleObj = handleObj;
					event.data = handleObj.data;

					ret = ( ( jQuery.event.special[ handleObj.origType ] || {} ).handle ||
						handleObj.handler ).apply( matched.elem, args );

					if ( ret !== undefined ) {
						if ( ( event.result = ret ) === false ) {
							event.preventDefault();
							event.stopPropagation();
						}
					}
				}
			}
		}

		// Call the postDispatch hook for the mapped type
		if ( special.postDispatch ) {
			special.postDispatch.call( this, event );
		}

		return event.result;
	},

	handlers: function( event, handlers ) {
		var i, handleObj, sel, matchedHandlers, matchedSelectors,
			handlerQueue = [],
			delegateCount = handlers.delegateCount,
			cur = event.target;

		// Find delegate handlers
		if ( delegateCount &&

			// Support: IE <=9
			// Black-hole SVG <use> instance trees (trac-13180)
			cur.nodeType &&

			// Support: Firefox <=42
			// Suppress spec-violating clicks indicating a non-primary pointer button (trac-3861)
			// https://www.w3.org/TR/DOM-Level-3-Events/#event-type-click
			// Support: IE 11 only
			// ...but not arrow key "clicks" of radio inputs, which can have `button` -1 (gh-2343)
			!( event.type === "click" && event.button >= 1 ) ) {

			for ( ; cur !== this; cur = cur.parentNode || this ) {

				// Don't check non-elements (#13208)
				// Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)
				if ( cur.nodeType === 1 && !( event.type === "click" && cur.disabled === true ) ) {
					matchedHandlers = [];
					matchedSelectors = {};
					for ( i = 0; i < delegateCount; i++ ) {
						handleObj = handlers[ i ];

						// Don't conflict with Object.prototype properties (#13203)
						sel = handleObj.selector + " ";

						if ( matchedSelectors[ sel ] === undefined ) {
							matchedSelectors[ sel ] = handleObj.needsContext ?
								jQuery( sel, this ).index( cur ) > -1 :
								jQuery.find( sel, this, null, [ cur ] ).length;
						}
						if ( matchedSelectors[ sel ] ) {
							matchedHandlers.push( handleObj );
						}
					}
					if ( matchedHandlers.length ) {
						handlerQueue.push( { elem: cur, handlers: matchedHandlers } );
					}
				}
			}
		}

		// Add the remaining (directly-bound) handlers
		cur = this;
		if ( delegateCount < handlers.length ) {
			handlerQueue.push( { elem: cur, handlers: handlers.slice( delegateCount ) } );
		}

		return handlerQueue;
	},

	addProp: function( name, hook ) {
		Object.defineProperty( jQuery.Event.prototype, name, {
			enumerable: true,
			configurable: true,

			get: jQuery.isFunction( hook ) ?
				function() {
					if ( this.originalEvent ) {
							return hook( this.originalEvent );
					}
				} :
				function() {
					if ( this.originalEvent ) {
							return this.originalEvent[ name ];
					}
				},

			set: function( value ) {
				Object.defineProperty( this, name, {
					enumerable: true,
					configurable: true,
					writable: true,
					value: value
				} );
			}
		} );
	},

	fix: function( originalEvent ) {
		return originalEvent[ jQuery.expando ] ?
			originalEvent :
			new jQuery.Event( originalEvent );
	},

	special: {
		load: {

			// Prevent triggered image.load events from bubbling to window.load
			noBubble: true
		},
		focus: {

			// Fire native event if possible so blur/focus sequence is correct
			trigger: function() {
				if ( this !== safeActiveElement() && this.focus ) {
					this.focus();
					return false;
				}
			},
			delegateType: "focusin"
		},
		blur: {
			trigger: function() {
				if ( this === safeActiveElement() && this.blur ) {
					this.blur();
					return false;
				}
			},
			delegateType: "focusout"
		},
		click: {

			// For checkable types, fire native event so checked state will be right
			trigger: function() {
				if ( rcheckableType.test( this.type ) &&
					this.click && nodeName( this, "input" ) ) {

					this.click();
					return false;
				}
			},

			// For cross-browser consistency, don't fire native .click() on links
			_default: function( event ) {
				return nodeName( event.target, "a" );
			}
		},

		beforeunload: {
			postDispatch: function( event ) {

				// Support: Firefox 20+
				// Firefox doesn't alert if the returnValue field is not set.
				if ( event.result !== undefined && event.originalEvent ) {
					event.originalEvent.returnValue = event.result;
				}
			}
		}
	}
};

jQuery.removeEvent = function( elem, type, handle ) {

	// This "if" is needed for plain objects
	if ( elem.removeEventListener ) {
		elem.removeEventListener( type, handle );
	}
};

jQuery.Event = function( src, props ) {

	// Allow instantiation without the 'new' keyword
	if ( !( this instanceof jQuery.Event ) ) {
		return new jQuery.Event( src, props );
	}

	// Event object
	if ( src && src.type ) {
		this.originalEvent = src;
		this.type = src.type;

		// Events bubbling up the document may have been marked as prevented
		// by a handler lower down the tree; reflect the correct value.
		this.isDefaultPrevented = src.defaultPrevented ||
				src.defaultPrevented === undefined &&

				// Support: Android <=2.3 only
				src.returnValue === false ?
			returnTrue :
			returnFalse;

		// Create target properties
		// Support: Safari <=6 - 7 only
		// Target should not be a text node (#504, #13143)
		this.target = ( src.target && src.target.nodeType === 3 ) ?
			src.target.parentNode :
			src.target;

		this.currentTarget = src.currentTarget;
		this.relatedTarget = src.relatedTarget;

	// Event type
	} else {
		this.type = src;
	}

	// Put explicitly provided properties onto the event object
	if ( props ) {
		jQuery.extend( this, props );
	}

	// Create a timestamp if incoming event doesn't have one
	this.timeStamp = src && src.timeStamp || jQuery.now();

	// Mark it as fixed
	this[ jQuery.expando ] = true;
};

// jQuery.Event is based on DOM3 Events as specified by the ECMAScript Language Binding
// https://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html
jQuery.Event.prototype = {
	constructor: jQuery.Event,
	isDefaultPrevented: returnFalse,
	isPropagationStopped: returnFalse,
	isImmediatePropagationStopped: returnFalse,
	isSimulated: false,

	preventDefault: function() {
		var e = this.originalEvent;

		this.isDefaultPrevented = returnTrue;

		if ( e && !this.isSimulated ) {
			e.preventDefault();
		}
	},
	stopPropagation: function() {
		var e = this.originalEvent;

		this.isPropagationStopped = returnTrue;

		if ( e && !this.isSimulated ) {
			e.stopPropagation();
		}
	},
	stopImmediatePropagation: function() {
		var e = this.originalEvent;

		this.isImmediatePropagationStopped = returnTrue;

		if ( e && !this.isSimulated ) {
			e.stopImmediatePropagation();
		}

		this.stopPropagation();
	}
};

// Includes all common event props including KeyEvent and MouseEvent specific props
jQuery.each( {
	altKey: true,
	bubbles: true,
	cancelable: true,
	changedTouches: true,
	ctrlKey: true,
	detail: true,
	eventPhase: true,
	metaKey: true,
	pageX: true,
	pageY: true,
	shiftKey: true,
	view: true,
	"char": true,
	charCode: true,
	key: true,
	keyCode: true,
	button: true,
	buttons: true,
	clientX: true,
	clientY: true,
	offsetX: true,
	offsetY: true,
	pointerId: true,
	pointerType: true,
	screenX: true,
	screenY: true,
	targetTouches: true,
	toElement: true,
	touches: true,

	which: function( event ) {
		var button = event.button;

		// Add which for key events
		if ( event.which == null && rkeyEvent.test( event.type ) ) {
			return event.charCode != null ? event.charCode : event.keyCode;
		}

		// Add which for click: 1 === left; 2 === middle; 3 === right
		if ( !event.which && button !== undefined && rmouseEvent.test( event.type ) ) {
			if ( button & 1 ) {
				return 1;
			}

			if ( button & 2 ) {
				return 3;
			}

			if ( button & 4 ) {
				return 2;
			}

			return 0;
		}

		return event.which;
	}
}, jQuery.event.addProp );

// Create mouseenter/leave events using mouseover/out and event-time checks
// so that event delegation works in jQuery.
// Do the same for pointerenter/pointerleave and pointerover/pointerout
//
// Support: Safari 7 only
// Safari sends mouseenter too often; see:
// https://bugs.chromium.org/p/chromium/issues/detail?id=470258
// for the description of the bug (it existed in older Chrome versions as well).
jQuery.each( {
	mouseenter: "mouseover",
	mouseleave: "mouseout",
	pointerenter: "pointerover",
	pointerleave: "pointerout"
}, function( orig, fix ) {
	jQuery.event.special[ orig ] = {
		delegateType: fix,
		bindType: fix,

		handle: function( event ) {
			var ret,
				target = this,
				related = event.relatedTarget,
				handleObj = event.handleObj;

			// For mouseenter/leave call the handler if related is outside the target.
			// NB: No relatedTarget if the mouse left/entered the browser window
			if ( !related || ( related !== target && !jQuery.contains( target, related ) ) ) {
				event.type = handleObj.origType;
				ret = handleObj.handler.apply( this, arguments );
				event.type = fix;
			}
			return ret;
		}
	};
} );

jQuery.fn.extend( {

	on: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn );
	},
	one: function( types, selector, data, fn ) {
		return on( this, types, selector, data, fn, 1 );
	},
	off: function( types, selector, fn ) {
		var handleObj, type;
		if ( types && types.preventDefault && types.handleObj ) {

			// ( event )  dispatched jQuery.Event
			handleObj = types.handleObj;
			jQuery( types.delegateTarget ).off(
				handleObj.namespace ?
					handleObj.origType + "." + handleObj.namespace :
					handleObj.origType,
				handleObj.selector,
				handleObj.handler
			);
			return this;
		}
		if ( typeof types === "object" ) {

			// ( types-object [, selector] )
			for ( type in types ) {
				this.off( type, selector, types[ type ] );
			}
			return this;
		}
		if ( selector === false || typeof selector === "function" ) {

			// ( types [, fn] )
			fn = selector;
			selector = undefined;
		}
		if ( fn === false ) {
			fn = returnFalse;
		}
		return this.each( function() {
			jQuery.event.remove( this, types, fn, selector );
		} );
	}
} );


var

	/* eslint-disable max-len */

	// See https://github.com/eslint/eslint/issues/3229
	rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([a-z][^\/\0>\x20\t\r\n\f]*)[^>]*)\/>/gi,

	/* eslint-enable */

	// Support: IE <=10 - 11, Edge 12 - 13
	// In IE/Edge using regex groups here causes severe slowdowns.
	// See https://connect.microsoft.com/IE/feedback/details/1736512/
	rnoInnerhtml = /<script|<style|<link/i,

	// checked="checked" or checked
	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
	rscriptTypeMasked = /^true\/(.*)/,
	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g;

// Prefer a tbody over its parent table for containing new rows
function manipulationTarget( elem, content ) {
	if ( nodeName( elem, "table" ) &&
		nodeName( content.nodeType !== 11 ? content : content.firstChild, "tr" ) ) {

		return jQuery( ">tbody", elem )[ 0 ] || elem;
	}

	return elem;
}

// Replace/restore the type attribute of script elements for safe DOM manipulation
function disableScript( elem ) {
	elem.type = ( elem.getAttribute( "type" ) !== null ) + "/" + elem.type;
	return elem;
}
function restoreScript( elem ) {
	var match = rscriptTypeMasked.exec( elem.type );

	if ( match ) {
		elem.type = match[ 1 ];
	} else {
		elem.removeAttribute( "type" );
	}

	return elem;
}

function cloneCopyEvent( src, dest ) {
	var i, l, type, pdataOld, pdataCur, udataOld, udataCur, events;

	if ( dest.nodeType !== 1 ) {
		return;
	}

	// 1. Copy private data: events, handlers, etc.
	if ( dataPriv.hasData( src ) ) {
		pdataOld = dataPriv.access( src );
		pdataCur = dataPriv.set( dest, pdataOld );
		events = pdataOld.events;

		if ( events ) {
			delete pdataCur.handle;
			pdataCur.events = {};

			for ( type in events ) {
				for ( i = 0, l = events[ type ].length; i < l; i++ ) {
					jQuery.event.add( dest, type, events[ type ][ i ] );
				}
			}
		}
	}

	// 2. Copy user data
	if ( dataUser.hasData( src ) ) {
		udataOld = dataUser.access( src );
		udataCur = jQuery.extend( {}, udataOld );

		dataUser.set( dest, udataCur );
	}
}

// Fix IE bugs, see support tests
function fixInput( src, dest ) {
	var nodeName = dest.nodeName.toLowerCase();

	// Fails to persist the checked state of a cloned checkbox or radio button.
	if ( nodeName === "input" && rcheckableType.test( src.type ) ) {
		dest.checked = src.checked;

	// Fails to return the selected option to the default selected state when cloning options
	} else if ( nodeName === "input" || nodeName === "textarea" ) {
		dest.defaultValue = src.defaultValue;
	}
}

function domManip( collection, args, callback, ignored ) {

	// Flatten any nested arrays
	args = concat.apply( [], args );

	var fragment, first, scripts, hasScripts, node, doc,
		i = 0,
		l = collection.length,
		iNoClone = l - 1,
		value = args[ 0 ],
		isFunction = jQuery.isFunction( value );

	// We can't cloneNode fragments that contain checked, in WebKit
	if ( isFunction ||
			( l > 1 && typeof value === "string" &&
				!support.checkClone && rchecked.test( value ) ) ) {
		return collection.each( function( index ) {
			var self = collection.eq( index );
			if ( isFunction ) {
				args[ 0 ] = value.call( this, index, self.html() );
			}
			domManip( self, args, callback, ignored );
		} );
	}

	if ( l ) {
		fragment = buildFragment( args, collection[ 0 ].ownerDocument, false, collection, ignored );
		first = fragment.firstChild;

		if ( fragment.childNodes.length === 1 ) {
			fragment = first;
		}

		// Require either new content or an interest in ignored elements to invoke the callback
		if ( first || ignored ) {
			scripts = jQuery.map( getAll( fragment, "script" ), disableScript );
			hasScripts = scripts.length;

			// Use the original fragment for the last item
			// instead of the first because it can end up
			// being emptied incorrectly in certain situations (#8070).
			for ( ; i < l; i++ ) {
				node = fragment;

				if ( i !== iNoClone ) {
					node = jQuery.clone( node, true, true );

					// Keep references to cloned scripts for later restoration
					if ( hasScripts ) {

						// Support: Android <=4.0 only, PhantomJS 1 only
						// push.apply(_, arraylike) throws on ancient WebKit
						jQuery.merge( scripts, getAll( node, "script" ) );
					}
				}

				callback.call( collection[ i ], node, i );
			}

			if ( hasScripts ) {
				doc = scripts[ scripts.length - 1 ].ownerDocument;

				// Reenable scripts
				jQuery.map( scripts, restoreScript );

				// Evaluate executable scripts on first document insertion
				for ( i = 0; i < hasScripts; i++ ) {
					node = scripts[ i ];
					if ( rscriptType.test( node.type || "" ) &&
						!dataPriv.access( node, "globalEval" ) &&
						jQuery.contains( doc, node ) ) {

						if ( node.src ) {

							// Optional AJAX dependency, but won't run scripts if not present
							if ( jQuery._evalUrl ) {
								jQuery._evalUrl( node.src );
							}
						} else {
							DOMEval( node.textContent.replace( rcleanScript, "" ), doc );
						}
					}
				}
			}
		}
	}

	return collection;
}

function remove( elem, selector, keepData ) {
	var node,
		nodes = selector ? jQuery.filter( selector, elem ) : elem,
		i = 0;

	for ( ; ( node = nodes[ i ] ) != null; i++ ) {
		if ( !keepData && node.nodeType === 1 ) {
			jQuery.cleanData( getAll( node ) );
		}

		if ( node.parentNode ) {
			if ( keepData && jQuery.contains( node.ownerDocument, node ) ) {
				setGlobalEval( getAll( node, "script" ) );
			}
			node.parentNode.removeChild( node );
		}
	}

	return elem;
}

jQuery.extend( {
	htmlPrefilter: function( html ) {
		return html.replace( rxhtmlTag, "<$1></$2>" );
	},

	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
		var i, l, srcElements, destElements,
			clone = elem.cloneNode( true ),
			inPage = jQuery.contains( elem.ownerDocument, elem );

		// Fix IE cloning issues
		if ( !support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) &&
				!jQuery.isXMLDoc( elem ) ) {

			// We eschew Sizzle here for performance reasons: https://jsperf.com/getall-vs-sizzle/2
			destElements = getAll( clone );
			srcElements = getAll( elem );

			for ( i = 0, l = srcElements.length; i < l; i++ ) {
				fixInput( srcElements[ i ], destElements[ i ] );
			}
		}

		// Copy the events from the original to the clone
		if ( dataAndEvents ) {
			if ( deepDataAndEvents ) {
				srcElements = srcElements || getAll( elem );
				destElements = destElements || getAll( clone );

				for ( i = 0, l = srcElements.length; i < l; i++ ) {
					cloneCopyEvent( srcElements[ i ], destElements[ i ] );
				}
			} else {
				cloneCopyEvent( elem, clone );
			}
		}

		// Preserve script evaluation history
		destElements = getAll( clone, "script" );
		if ( destElements.length > 0 ) {
			setGlobalEval( destElements, !inPage && getAll( elem, "script" ) );
		}

		// Return the cloned set
		return clone;
	},

	cleanData: function( elems ) {
		var data, elem, type,
			special = jQuery.event.special,
			i = 0;

		for ( ; ( elem = elems[ i ] ) !== undefined; i++ ) {
			if ( acceptData( elem ) ) {
				if ( ( data = elem[ dataPriv.expando ] ) ) {
					if ( data.events ) {
						for ( type in data.events ) {
							if ( special[ type ] ) {
								jQuery.event.remove( elem, type );

							// This is a shortcut to avoid jQuery.event.remove's overhead
							} else {
								jQuery.removeEvent( elem, type, data.handle );
							}
						}
					}

					// Support: Chrome <=35 - 45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataPriv.expando ] = undefined;
				}
				if ( elem[ dataUser.expando ] ) {

					// Support: Chrome <=35 - 45+
					// Assign undefined instead of using delete, see Data#remove
					elem[ dataUser.expando ] = undefined;
				}
			}
		}
	}
} );

jQuery.fn.extend( {
	detach: function( selector ) {
		return remove( this, selector, true );
	},

	remove: function( selector ) {
		return remove( this, selector );
	},

	text: function( value ) {
		return access( this, function( value ) {
			return value === undefined ?
				jQuery.text( this ) :
				this.empty().each( function() {
					if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
						this.textContent = value;
					}
				} );
		}, null, value, arguments.length );
	},

	append: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.appendChild( elem );
			}
		} );
	},

	prepend: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
				var target = manipulationTarget( this, elem );
				target.insertBefore( elem, target.firstChild );
			}
		} );
	},

	before: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this );
			}
		} );
	},

	after: function() {
		return domManip( this, arguments, function( elem ) {
			if ( this.parentNode ) {
				this.parentNode.insertBefore( elem, this.nextSibling );
			}
		} );
	},

	empty: function() {
		var elem,
			i = 0;

		for ( ; ( elem = this[ i ] ) != null; i++ ) {
			if ( elem.nodeType === 1 ) {

				// Prevent memory leaks
				jQuery.cleanData( getAll( elem, false ) );

				// Remove any remaining nodes
				elem.textContent = "";
			}
		}

		return this;
	},

	clone: function( dataAndEvents, deepDataAndEvents ) {
		dataAndEvents = dataAndEvents == null ? false : dataAndEvents;
		deepDataAndEvents = deepDataAndEvents == null ? dataAndEvents : deepDataAndEvents;

		return this.map( function() {
			return jQuery.clone( this, dataAndEvents, deepDataAndEvents );
		} );
	},

	html: function( value ) {
		return access( this, function( value ) {
			var elem = this[ 0 ] || {},
				i = 0,
				l = this.length;

			if ( value === undefined && elem.nodeType === 1 ) {
				return elem.innerHTML;
			}

			// See if we can take a shortcut and just use innerHTML
			if ( typeof value === "string" && !rnoInnerhtml.test( value ) &&
				!wrapMap[ ( rtagName.exec( value ) || [ "", "" ] )[ 1 ].toLowerCase() ] ) {

				value = jQuery.htmlPrefilter( value );

				try {
					for ( ; i < l; i++ ) {
						elem = this[ i ] || {};

						// Remove element nodes and prevent memory leaks
						if ( elem.nodeType === 1 ) {
							jQuery.cleanData( getAll( elem, false ) );
							elem.innerHTML = value;
						}
					}

					elem = 0;

				// If using innerHTML throws an exception, use the fallback method
				} catch ( e ) {}
			}

			if ( elem ) {
				this.empty().append( value );
			}
		}, null, value, arguments.length );
	},

	replaceWith: function() {
		var ignored = [];

		// Make the changes, replacing each non-ignored context element with the new content
		return domManip( this, arguments, function( elem ) {
			var parent = this.parentNode;

			if ( jQuery.inArray( this, ignored ) < 0 ) {
				jQuery.cleanData( getAll( this ) );
				if ( parent ) {
					parent.replaceChild( elem, this );
				}
			}

		// Force callback invocation
		}, ignored );
	}
} );

jQuery.each( {
	appendTo: "append",
	prependTo: "prepend",
	insertBefore: "before",
	insertAfter: "after",
	replaceAll: "replaceWith"
}, function( name, original ) {
	jQuery.fn[ name ] = function( selector ) {
		var elems,
			ret = [],
			insert = jQuery( selector ),
			last = insert.length - 1,
			i = 0;

		for ( ; i <= last; i++ ) {
			elems = i === last ? this : this.clone( true );
			jQuery( insert[ i ] )[ original ]( elems );

			// Support: Android <=4.0 only, PhantomJS 1 only
			// .get() because push.apply(_, arraylike) throws on ancient WebKit
			push.apply( ret, elems.get() );
		}

		return this.pushStack( ret );
	};
} );
var rmargin = ( /^margin/ );

var rnumnonpx = new RegExp( "^(" + pnum + ")(?!px)[a-z%]+$", "i" );

var getStyles = function( elem ) {

		// Support: IE <=11 only, Firefox <=30 (#15098, #14150)
		// IE throws on elements created in popups
		// FF meanwhile throws on frame elements through "defaultView.getComputedStyle"
		var view = elem.ownerDocument.defaultView;

		if ( !view || !view.opener ) {
			view = window;
		}

		return view.getComputedStyle( elem );
	};



( function() {

	// Executing both pixelPosition & boxSizingReliable tests require only one layout
	// so they're executed at the same time to save the second computation.
	function computeStyleTests() {

		// This is a singleton, we need to execute it only once
		if ( !div ) {
			return;
		}

		div.style.cssText =
			"box-sizing:border-box;" +
			"position:relative;display:block;" +
			"margin:auto;border:1px;padding:1px;" +
			"top:1%;width:50%";
		div.innerHTML = "";
		documentElement.appendChild( container );

		var divStyle = window.getComputedStyle( div );
		pixelPositionVal = divStyle.top !== "1%";

		// Support: Android 4.0 - 4.3 only, Firefox <=3 - 44
		reliableMarginLeftVal = divStyle.marginLeft === "2px";
		boxSizingReliableVal = divStyle.width === "4px";

		// Support: Android 4.0 - 4.3 only
		// Some styles come back with percentage values, even though they shouldn't
		div.style.marginRight = "50%";
		pixelMarginRightVal = divStyle.marginRight === "4px";

		documentElement.removeChild( container );

		// Nullify the div so it wouldn't be stored in the memory and
		// it will also be a sign that checks already performed
		div = null;
	}

	var pixelPositionVal, boxSizingReliableVal, pixelMarginRightVal, reliableMarginLeftVal,
		container = document.createElement( "div" ),
		div = document.createElement( "div" );

	// Finish early in limited (non-browser) environments
	if ( !div.style ) {
		return;
	}

	// Support: IE <=9 - 11 only
	// Style of cloned element affects source element cloned (#8908)
	div.style.backgroundClip = "content-box";
	div.cloneNode( true ).style.backgroundClip = "";
	support.clearCloneStyle = div.style.backgroundClip === "content-box";

	container.style.cssText = "border:0;width:8px;height:0;top:0;left:-9999px;" +
		"padding:0;margin-top:1px;position:absolute";
	container.appendChild( div );

	jQuery.extend( support, {
		pixelPosition: function() {
			computeStyleTests();
			return pixelPositionVal;
		},
		boxSizingReliable: function() {
			computeStyleTests();
			return boxSizingReliableVal;
		},
		pixelMarginRight: function() {
			computeStyleTests();
			return pixelMarginRightVal;
		},
		reliableMarginLeft: function() {
			computeStyleTests();
			return reliableMarginLeftVal;
		}
	} );
} )();


function curCSS( elem, name, computed ) {
	var width, minWidth, maxWidth, ret,
		style = elem.style;

	computed = computed || getStyles( elem );

	// getPropertyValue is needed for:
	//   .css('filter') (IE 9 only, #12537)
	//   .css('--customProperty) (#3144)
	if ( computed ) {
		ret = computed.getPropertyValue( name ) || computed[ name ];

		if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
			ret = jQuery.style( elem, name );
		}

		// A tribute to the "awesome hack by Dean Edwards"
		// Android Browser returns percentage for some values,
		// but width seems to be reliably pixels.
		// This is against the CSSOM draft spec:
		// https://drafts.csswg.org/cssom/#resolved-values
		if ( !support.pixelMarginRight() && rnumnonpx.test( ret ) && rmargin.test( name ) ) {

			// Remember the original values
			width = style.width;
			minWidth = style.minWidth;
			maxWidth = style.maxWidth;

			// Put in the new values to get a computed value out
			style.minWidth = style.maxWidth = style.width = ret;
			ret = computed.width;

			// Revert the changed values
			style.width = width;
			style.minWidth = minWidth;
			style.maxWidth = maxWidth;
		}
	}

	return ret !== undefined ?

		// Support: IE <=9 - 11 only
		// IE returns zIndex value as an integer.
		ret + "" :
		ret;
}


function addGetHookIf( conditionFn, hookFn ) {

	// Define the hook, we'll check on the first run if it's really needed.
	return {
		get: function() {
			if ( conditionFn() ) {

				// Hook not needed (or it's not possible to use it due
				// to missing dependency), remove it.
				delete this.get;
				return;
			}

			// Hook needed; redefine it so that the support test is not executed again.
			return ( this.get = hookFn ).apply( this, arguments );
		}
	};
}


var

	// Swappable if display is none or starts with table
	// except "table", "table-cell", or "table-caption"
	// See here for display values: https://developer.mozilla.org/en-US/docs/CSS/display
	rdisplayswap = /^(none|table(?!-c[ea]).+)/,
	rcustomProp = /^--/,
	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
	cssNormalTransform = {
		letterSpacing: "0",
		fontWeight: "400"
	},

	cssPrefixes = [ "Webkit", "Moz", "ms" ],
	emptyStyle = document.createElement( "div" ).style;

// Return a css property mapped to a potentially vendor prefixed property
function vendorPropName( name ) {

	// Shortcut for names that are not vendor prefixed
	if ( name in emptyStyle ) {
		return name;
	}

	// Check for vendor prefixed names
	var capName = name[ 0 ].toUpperCase() + name.slice( 1 ),
		i = cssPrefixes.length;

	while ( i-- ) {
		name = cssPrefixes[ i ] + capName;
		if ( name in emptyStyle ) {
			return name;
		}
	}
}

// Return a property mapped along what jQuery.cssProps suggests or to
// a vendor prefixed property.
function finalPropName( name ) {
	var ret = jQuery.cssProps[ name ];
	if ( !ret ) {
		ret = jQuery.cssProps[ name ] = vendorPropName( name ) || name;
	}
	return ret;
}

function setPositiveNumber( elem, value, subtract ) {

	// Any relative (+/-) values have already been
	// normalized at this point
	var matches = rcssNum.exec( value );
	return matches ?

		// Guard against undefined "subtract", e.g., when used as in cssHooks
		Math.max( 0, matches[ 2 ] - ( subtract || 0 ) ) + ( matches[ 3 ] || "px" ) :
		value;
}

function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
	var i,
		val = 0;

	// If we already have the right measurement, avoid augmentation
	if ( extra === ( isBorderBox ? "border" : "content" ) ) {
		i = 4;

	// Otherwise initialize for horizontal or vertical properties
	} else {
		i = name === "width" ? 1 : 0;
	}

	for ( ; i < 4; i += 2 ) {

		// Both box models exclude margin, so add it if we want it
		if ( extra === "margin" ) {
			val += jQuery.css( elem, extra + cssExpand[ i ], true, styles );
		}

		if ( isBorderBox ) {

			// border-box includes padding, so remove it if we want content
			if ( extra === "content" ) {
				val -= jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );
			}

			// At this point, extra isn't border nor margin, so remove border
			if ( extra !== "margin" ) {
				val -= jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		} else {

			// At this point, extra isn't content, so add padding
			val += jQuery.css( elem, "padding" + cssExpand[ i ], true, styles );

			// At this point, extra isn't content nor padding, so add border
			if ( extra !== "padding" ) {
				val += jQuery.css( elem, "border" + cssExpand[ i ] + "Width", true, styles );
			}
		}
	}

	return val;
}

function getWidthOrHeight( elem, name, extra ) {

	// Start with computed style
	var valueIsBorderBox,
		styles = getStyles( elem ),
		val = curCSS( elem, name, styles ),
		isBorderBox = jQuery.css( elem, "boxSizing", false, styles ) === "border-box";

	// Computed unit is not pixels. Stop here and return.
	if ( rnumnonpx.test( val ) ) {
		return val;
	}

	// Check for style in case a browser which returns unreliable values
	// for getComputedStyle silently falls back to the reliable elem.style
	valueIsBorderBox = isBorderBox &&
		( support.boxSizingReliable() || val === elem.style[ name ] );

	// Normalize "", auto, and prepare for extra
	val = parseFloat( val ) || 0;

	// Use the active box-sizing model to add/subtract irrelevant styles
	return ( val +
		augmentWidthOrHeight(
			elem,
			name,
			extra || ( isBorderBox ? "border" : "content" ),
			valueIsBorderBox,
			styles
		)
	) + "px";
}

jQuery.extend( {

	// Add in style property hooks for overriding the default
	// behavior of getting and setting a style property
	cssHooks: {
		opacity: {
			get: function( elem, computed ) {
				if ( computed ) {

					// We should always get a number back from opacity
					var ret = curCSS( elem, "opacity" );
					return ret === "" ? "1" : ret;
				}
			}
		}
	},

	// Don't automatically add "px" to these possibly-unitless properties
	cssNumber: {
		"animationIterationCount": true,
		"columnCount": true,
		"fillOpacity": true,
		"flexGrow": true,
		"flexShrink": true,
		"fontWeight": true,
		"lineHeight": true,
		"opacity": true,
		"order": true,
		"orphans": true,
		"widows": true,
		"zIndex": true,
		"zoom": true
	},

	// Add in properties whose names you wish to fix before
	// setting or getting the value
	cssProps: {
		"float": "cssFloat"
	},

	// Get and set the style property on a DOM Node
	style: function( elem, name, value, extra ) {

		// Don't set styles on text and comment nodes
		if ( !elem || elem.nodeType === 3 || elem.nodeType === 8 || !elem.style ) {
			return;
		}

		// Make sure that we're working with the right name
		var ret, type, hooks,
			origName = jQuery.camelCase( name ),
			isCustomProp = rcustomProp.test( name ),
			style = elem.style;

		// Make sure that we're working with the right name. We don't
		// want to query the value if it is a CSS custom property
		// since they are user-defined.
		if ( !isCustomProp ) {
			name = finalPropName( origName );
		}

		// Gets hook for the prefixed version, then unprefixed version
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// Check if we're setting a value
		if ( value !== undefined ) {
			type = typeof value;

			// Convert "+=" or "-=" to relative numbers (#7345)
			if ( type === "string" && ( ret = rcssNum.exec( value ) ) && ret[ 1 ] ) {
				value = adjustCSS( elem, name, ret );

				// Fixes bug #9237
				type = "number";
			}

			// Make sure that null and NaN values aren't set (#7116)
			if ( value == null || value !== value ) {
				return;
			}

			// If a number was passed in, add the unit (except for certain CSS properties)
			if ( type === "number" ) {
				value += ret && ret[ 3 ] || ( jQuery.cssNumber[ origName ] ? "" : "px" );
			}

			// background-* props affect original clone's values
			if ( !support.clearCloneStyle && value === "" && name.indexOf( "background" ) === 0 ) {
				style[ name ] = "inherit";
			}

			// If a hook was provided, use that value, otherwise just set the specified value
			if ( !hooks || !( "set" in hooks ) ||
				( value = hooks.set( elem, value, extra ) ) !== undefined ) {

				if ( isCustomProp ) {
					style.setProperty( name, value );
				} else {
					style[ name ] = value;
				}
			}

		} else {

			// If a hook was provided get the non-computed value from there
			if ( hooks && "get" in hooks &&
				( ret = hooks.get( elem, false, extra ) ) !== undefined ) {

				return ret;
			}

			// Otherwise just get the value from the style object
			return style[ name ];
		}
	},

	css: function( elem, name, extra, styles ) {
		var val, num, hooks,
			origName = jQuery.camelCase( name ),
			isCustomProp = rcustomProp.test( name );

		// Make sure that we're working with the right name. We don't
		// want to modify the value if it is a CSS custom property
		// since they are user-defined.
		if ( !isCustomProp ) {
			name = finalPropName( origName );
		}

		// Try prefixed name followed by the unprefixed name
		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];

		// If a hook was provided get the computed value from there
		if ( hooks && "get" in hooks ) {
			val = hooks.get( elem, true, extra );
		}

		// Otherwise, if a way to get the computed value exists, use that
		if ( val === undefined ) {
			val = curCSS( elem, name, styles );
		}

		// Convert "normal" to computed value
		if ( val === "normal" && name in cssNormalTransform ) {
			val = cssNormalTransform[ name ];
		}

		// Make numeric if forced or a qualifier was provided and val looks numeric
		if ( extra === "" || extra ) {
			num = parseFloat( val );
			return extra === true || isFinite( num ) ? num || 0 : val;
		}

		return val;
	}
} );

jQuery.each( [ "height", "width" ], function( i, name ) {
	jQuery.cssHooks[ name ] = {
		get: function( elem, computed, extra ) {
			if ( computed ) {

				// Certain elements can have dimension info if we invisibly show them
				// but it must have a current display style that would benefit
				return rdisplayswap.test( jQuery.css( elem, "display" ) ) &&

					// Support: Safari 8+
					// Table columns in Safari have non-zero offsetWidth & zero
					// getBoundingClientRect().width unless display is changed.
					// Support: IE <=11 only
					// Running getBoundingClientRect on a disconnected node
					// in IE throws an error.
					( !elem.getClientRects().length || !elem.getBoundingClientRect().width ) ?
						swap( elem, cssShow, function() {
							return getWidthOrHeight( elem, name, extra );
						} ) :
						getWidthOrHeight( elem, name, extra );
			}
		},

		set: function( elem, value, extra ) {
			var matches,
				styles = extra && getStyles( elem ),
				subtract = extra && augmentWidthOrHeight(
					elem,
					name,
					extra,
					jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
					styles
				);

			// Convert to pixels if value adjustment is needed
			if ( subtract && ( matches = rcssNum.exec( value ) ) &&
				( matches[ 3 ] || "px" ) !== "px" ) {

				elem.style[ name ] = value;
				value = jQuery.css( elem, name );
			}

			return setPositiveNumber( elem, value, subtract );
		}
	};
} );

jQuery.cssHooks.marginLeft = addGetHookIf( support.reliableMarginLeft,
	function( elem, computed ) {
		if ( computed ) {
			return ( parseFloat( curCSS( elem, "marginLeft" ) ) ||
				elem.getBoundingClientRect().left -
					swap( elem, { marginLeft: 0 }, function() {
						return elem.getBoundingClientRect().left;
					} )
				) + "px";
		}
	}
);

// These hooks are used by animate to expand properties
jQuery.each( {
	margin: "",
	padding: "",
	border: "Width"
}, function( prefix, suffix ) {
	jQuery.cssHooks[ prefix + suffix ] = {
		expand: function( value ) {
			var i = 0,
				expanded = {},

				// Assumes a single number if not a string
				parts = typeof value === "string" ? value.split( " " ) : [ value ];

			for ( ; i < 4; i++ ) {
				expanded[ prefix + cssExpand[ i ] + suffix ] =
					parts[ i ] || parts[ i - 2 ] || parts[ 0 ];
			}

			return expanded;
		}
	};

	if ( !rmargin.test( prefix ) ) {
		jQuery.cssHooks[ prefix + suffix ].set = setPositiveNumber;
	}
} );

jQuery.fn.extend( {
	css: function( name, value ) {
		return access( this, function( elem, name, value ) {
			var styles, len,
				map = {},
				i = 0;

			if ( Array.isArray( name ) ) {
				styles = getStyles( elem );
				len = name.length;

				for ( ; i < len; i++ ) {
					map[ name[ i ] ] = jQuery.css( elem, name[ i ], false, styles );
				}

				return map;
			}

			return value !== undefined ?
				jQuery.style( elem, name, value ) :
				jQuery.css( elem, name );
		}, name, value, arguments.length > 1 );
	}
} );


function Tween( elem, options, prop, end, easing ) {
	return new Tween.prototype.init( elem, options, prop, end, easing );
}
jQuery.Tween = Tween;

Tween.prototype = {
	constructor: Tween,
	init: function( elem, options, prop, end, easing, unit ) {
		this.elem = elem;
		this.prop = prop;
		this.easing = easing || jQuery.easing._default;
		this.options = options;
		this.start = this.now = this.cur();
		this.end = end;
		this.unit = unit || ( jQuery.cssNumber[ prop ] ? "" : "px" );
	},
	cur: function() {
		var hooks = Tween.propHooks[ this.prop ];

		return hooks && hooks.get ?
			hooks.get( this ) :
			Tween.propHooks._default.get( this );
	},
	run: function( percent ) {
		var eased,
			hooks = Tween.propHooks[ this.prop ];

		if ( this.options.duration ) {
			this.pos = eased = jQuery.easing[ this.easing ](
				percent, this.options.duration * percent, 0, 1, this.options.duration
			);
		} else {
			this.pos = eased = percent;
		}
		this.now = ( this.end - this.start ) * eased + this.start;

		if ( this.options.step ) {
			this.options.step.call( this.elem, this.now, this );
		}

		if ( hooks && hooks.set ) {
			hooks.set( this );
		} else {
			Tween.propHooks._default.set( this );
		}
		return this;
	}
};

Tween.prototype.init.prototype = Tween.prototype;

Tween.propHooks = {
	_default: {
		get: function( tween ) {
			var result;

			// Use a property on the element directly when it is not a DOM element,
			// or when there is no matching style property that exists.
			if ( tween.elem.nodeType !== 1 ||
				tween.elem[ tween.prop ] != null && tween.elem.style[ tween.prop ] == null ) {
				return tween.elem[ tween.prop ];
			}

			// Passing an empty string as a 3rd parameter to .css will automatically
			// attempt a parseFloat and fallback to a string if the parse fails.
			// Simple values such as "10px" are parsed to Float;
			// complex values such as "rotate(1rad)" are returned as-is.
			result = jQuery.css( tween.elem, tween.prop, "" );

			// Empty strings, null, undefined and "auto" are converted to 0.
			return !result || result === "auto" ? 0 : result;
		},
		set: function( tween ) {

			// Use step hook for back compat.
			// Use cssHook if its there.
			// Use .style if available and use plain properties where available.
			if ( jQuery.fx.step[ tween.prop ] ) {
				jQuery.fx.step[ tween.prop ]( tween );
			} else if ( tween.elem.nodeType === 1 &&
				( tween.elem.style[ jQuery.cssProps[ tween.prop ] ] != null ||
					jQuery.cssHooks[ tween.prop ] ) ) {
				jQuery.style( tween.elem, tween.prop, tween.now + tween.unit );
			} else {
				tween.elem[ tween.prop ] = tween.now;
			}
		}
	}
};

// Support: IE <=9 only
// Panic based approach to setting things on disconnected nodes
Tween.propHooks.scrollTop = Tween.propHooks.scrollLeft = {
	set: function( tween ) {
		if ( tween.elem.nodeType && tween.elem.parentNode ) {
			tween.elem[ tween.prop ] = tween.now;
		}
	}
};

jQuery.easing = {
	linear: function( p ) {
		return p;
	},
	swing: function( p ) {
		return 0.5 - Math.cos( p * Math.PI ) / 2;
	},
	_default: "swing"
};

jQuery.fx = Tween.prototype.init;

// Back compat <1.8 extension point
jQuery.fx.step = {};




var
	fxNow, inProgress,
	rfxtypes = /^(?:toggle|show|hide)$/,
	rrun = /queueHooks$/;

function schedule() {
	if ( inProgress ) {
		if ( document.hidden === false && window.requestAnimationFrame ) {
			window.requestAnimationFrame( schedule );
		} else {
			window.setTimeout( schedule, jQuery.fx.interval );
		}

		jQuery.fx.tick();
	}
}

// Animations created synchronously will run synchronously
function createFxNow() {
	window.setTimeout( function() {
		fxNow = undefined;
	} );
	return ( fxNow = jQuery.now() );
}

// Generate parameters to create a standard animation
function genFx( type, includeWidth ) {
	var which,
		i = 0,
		attrs = { height: type };

	// If we include width, step value is 1 to do all cssExpand values,
	// otherwise step value is 2 to skip over Left and Right
	includeWidth = includeWidth ? 1 : 0;
	for ( ; i < 4; i += 2 - includeWidth ) {
		which = cssExpand[ i ];
		attrs[ "margin" + which ] = attrs[ "padding" + which ] = type;
	}

	if ( includeWidth ) {
		attrs.opacity = attrs.width = type;
	}

	return attrs;
}

function createTween( value, prop, animation ) {
	var tween,
		collection = ( Animation.tweeners[ prop ] || [] ).concat( Animation.tweeners[ "*" ] ),
		index = 0,
		length = collection.length;
	for ( ; index < length; index++ ) {
		if ( ( tween = collection[ index ].call( animation, prop, value ) ) ) {

			// We're done with this property
			return tween;
		}
	}
}

function defaultPrefilter( elem, props, opts ) {
	var prop, value, toggle, hooks, oldfire, propTween, restoreDisplay, display,
		isBox = "width" in props || "height" in props,
		anim = this,
		orig = {},
		style = elem.style,
		hidden = elem.nodeType && isHiddenWithinTree( elem ),
		dataShow = dataPriv.get( elem, "fxshow" );

	// Queue-skipping animations hijack the fx hooks
	if ( !opts.queue ) {
		hooks = jQuery._queueHooks( elem, "fx" );
		if ( hooks.unqueued == null ) {
			hooks.unqueued = 0;
			oldfire = hooks.empty.fire;
			hooks.empty.fire = function() {
				if ( !hooks.unqueued ) {
					oldfire();
				}
			};
		}
		hooks.unqueued++;

		anim.always( function() {

			// Ensure the complete handler is called before this completes
			anim.always( function() {
				hooks.unqueued--;
				if ( !jQuery.queue( elem, "fx" ).length ) {
					hooks.empty.fire();
				}
			} );
		} );
	}

	// Detect show/hide animations
	for ( prop in props ) {
		value = props[ prop ];
		if ( rfxtypes.test( value ) ) {
			delete props[ prop ];
			toggle = toggle || value === "toggle";
			if ( value === ( hidden ? "hide" : "show" ) ) {

				// Pretend to be hidden if this is a "show" and
				// there is still data from a stopped show/hide
				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
					hidden = true;

				// Ignore all other no-op show/hide data
				} else {
					continue;
				}
			}
			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
		}
	}

	// Bail out if this is a no-op like .hide().hide()
	propTween = !jQuery.isEmptyObject( props );
	if ( !propTween && jQuery.isEmptyObject( orig ) ) {
		return;
	}

	// Restrict "overflow" and "display" styles during box animations
	if ( isBox && elem.nodeType === 1 ) {

		// Support: IE <=9 - 11, Edge 12 - 13
		// Record all 3 overflow attributes because IE does not infer the shorthand
		// from identically-valued overflowX and overflowY
		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];

		// Identify a display type, preferring old show/hide data over the CSS cascade
		restoreDisplay = dataShow && dataShow.display;
		if ( restoreDisplay == null ) {
			restoreDisplay = dataPriv.get( elem, "display" );
		}
		display = jQuery.css( elem, "display" );
		if ( display === "none" ) {
			if ( restoreDisplay ) {
				display = restoreDisplay;
			} else {

				// Get nonempty value(s) by temporarily forcing visibility
				showHide( [ elem ], true );
				restoreDisplay = elem.style.display || restoreDisplay;
				display = jQuery.css( elem, "display" );
				showHide( [ elem ] );
			}
		}

		// Animate inline elements as inline-block
		if ( display === "inline" || display === "inline-block" && restoreDisplay != null ) {
			if ( jQuery.css( elem, "float" ) === "none" ) {

				// Restore the original display value at the end of pure show/hide animations
				if ( !propTween ) {
					anim.done( function() {
						style.display = restoreDisplay;
					} );
					if ( restoreDisplay == null ) {
						display = style.display;
						restoreDisplay = display === "none" ? "" : display;
					}
				}
				style.display = "inline-block";
			}
		}
	}

	if ( opts.overflow ) {
		style.overflow = "hidden";
		anim.always( function() {
			style.overflow = opts.overflow[ 0 ];
			style.overflowX = opts.overflow[ 1 ];
			style.overflowY = opts.overflow[ 2 ];
		} );
	}

	// Implement show/hide animations
	propTween = false;
	for ( prop in orig ) {

		// General show/hide setup for this element animation
		if ( !propTween ) {
			if ( dataShow ) {
				if ( "hidden" in dataShow ) {
					hidden = dataShow.hidden;
				}
			} else {
				dataShow = dataPriv.access( elem, "fxshow", { display: restoreDisplay } );
			}

			// Store hidden/visible for toggle so `.stop().toggle()` "reverses"
			if ( toggle ) {
				dataShow.hidden = !hidden;
			}

			// Show elements before animating them
			if ( hidden ) {
				showHide( [ elem ], true );
			}

			/* eslint-disable no-loop-func */

			anim.done( function() {

			/* eslint-enable no-loop-func */

				// The final step of a "hide" animation is actually hiding the element
				if ( !hidden ) {
					showHide( [ elem ] );
				}
				dataPriv.remove( elem, "fxshow" );
				for ( prop in orig ) {
					jQuery.style( elem, prop, orig[ prop ] );
				}
			} );
		}

		// Per-property setup
		propTween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
		if ( !( prop in dataShow ) ) {
			dataShow[ prop ] = propTween.start;
			if ( hidden ) {
				propTween.end = propTween.start;
				propTween.start = 0;
			}
		}
	}
}

function propFilter( props, specialEasing ) {
	var index, name, easing, value, hooks;

	// camelCase, specialEasing and expand cssHook pass
	for ( index in props ) {
		name = jQuery.camelCase( index );
		easing = specialEasing[ name ];
		value = props[ index ];
		if ( Array.isArray( value ) ) {
			easing = value[ 1 ];
			value = props[ index ] = value[ 0 ];
		}

		if ( index !== name ) {
			props[ name ] = value;
			delete props[ index ];
		}

		hooks = jQuery.cssHooks[ name ];
		if ( hooks && "expand" in hooks ) {
			value = hooks.expand( value );
			delete props[ name ];

			// Not quite $.extend, this won't overwrite existing keys.
			// Reusing 'index' because we have the correct "name"
			for ( index in value ) {
				if ( !( index in props ) ) {
					props[ index ] = value[ index ];
					specialEasing[ index ] = easing;
				}
			}
		} else {
			specialEasing[ name ] = easing;
		}
	}
}

function Animation( elem, properties, options ) {
	var result,
		stopped,
		index = 0,
		length = Animation.prefilters.length,
		deferred = jQuery.Deferred().always( function() {

			// Don't match elem in the :animated selector
			delete tick.elem;
		} ),
		tick = function() {
			if ( stopped ) {
				return false;
			}
			var currentTime = fxNow || createFxNow(),
				remaining = Math.max( 0, animation.startTime + animation.duration - currentTime ),

				// Support: Android 2.3 only
				// Archaic crash bug won't allow us to use `1 - ( 0.5 || 0 )` (#12497)
				temp = remaining / animation.duration || 0,
				percent = 1 - temp,
				index = 0,
				length = animation.tweens.length;

			for ( ; index < length; index++ ) {
				animation.tweens[ index ].run( percent );
			}

			deferred.notifyWith( elem, [ animation, percent, remaining ] );

			// If there's more to do, yield
			if ( percent < 1 && length ) {
				return remaining;
			}

			// If this was an empty animation, synthesize a final progress notification
			if ( !length ) {
				deferred.notifyWith( elem, [ animation, 1, 0 ] );
			}

			// Resolve the animation and report its conclusion
			deferred.resolveWith( elem, [ animation ] );
			return false;
		},
		animation = deferred.promise( {
			elem: elem,
			props: jQuery.extend( {}, properties ),
			opts: jQuery.extend( true, {
				specialEasing: {},
				easing: jQuery.easing._default
			}, options ),
			originalProperties: properties,
			originalOptions: options,
			startTime: fxNow || createFxNow(),
			duration: options.duration,
			tweens: [],
			createTween: function( prop, end ) {
				var tween = jQuery.Tween( elem, animation.opts, prop, end,
						animation.opts.specialEasing[ prop ] || animation.opts.easing );
				animation.tweens.push( tween );
				return tween;
			},
			stop: function( gotoEnd ) {
				var index = 0,

					// If we are going to the end, we want to run all the tweens
					// otherwise we skip this part
					length = gotoEnd ? animation.tweens.length : 0;
				if ( stopped ) {
					return this;
				}
				stopped = true;
				for ( ; index < length; index++ ) {
					animation.tweens[ index ].run( 1 );
				}

				// Resolve when we played the last frame; otherwise, reject
				if ( gotoEnd ) {
					deferred.notifyWith( elem, [ animation, 1, 0 ] );
					deferred.resolveWith( elem, [ animation, gotoEnd ] );
				} else {
					deferred.rejectWith( elem, [ animation, gotoEnd ] );
				}
				return this;
			}
		} ),
		props = animation.props;

	propFilter( props, animation.opts.specialEasing );

	for ( ; index < length; index++ ) {
		result = Animation.prefilters[ index ].call( animation, elem, props, animation.opts );
		if ( result ) {
			if ( jQuery.isFunction( result.stop ) ) {
				jQuery._queueHooks( animation.elem, animation.opts.queue ).stop =
					jQuery.proxy( result.stop, result );
			}
			return result;
		}
	}

	jQuery.map( props, createTween, animation );

	if ( jQuery.isFunction( animation.opts.start ) ) {
		animation.opts.start.call( elem, animation );
	}

	// Attach callbacks from options
	animation
		.progress( animation.opts.progress )
		.done( animation.opts.done, animation.opts.complete )
		.fail( animation.opts.fail )
		.always( animation.opts.always );

	jQuery.fx.timer(
		jQuery.extend( tick, {
			elem: elem,
			anim: animation,
			queue: animation.opts.queue
		} )
	);

	return animation;
}

jQuery.Animation = jQuery.extend( Animation, {

	tweeners: {
		"*": [ function( prop, value ) {
			var tween = this.createTween( prop, value );
			adjustCSS( tween.elem, prop, rcssNum.exec( value ), tween );
			return tween;
		} ]
	},

	tweener: function( props, callback ) {
		if ( jQuery.isFunction( props ) ) {
			callback = props;
			props = [ "*" ];
		} else {
			props = props.match( rnothtmlwhite );
		}

		var prop,
			index = 0,
			length = props.length;

		for ( ; index < length; index++ ) {
			prop = props[ index ];
			Animation.tweeners[ prop ] = Animation.tweeners[ prop ] || [];
			Animation.tweeners[ prop ].unshift( callback );
		}
	},

	prefilters: [ defaultPrefilter ],

	prefilter: function( callback, prepend ) {
		if ( prepend ) {
			Animation.prefilters.unshift( callback );
		} else {
			Animation.prefilters.push( callback );
		}
	}
} );

jQuery.speed = function( speed, easing, fn ) {
	var opt = speed && typeof speed === "object" ? jQuery.extend( {}, speed ) : {
		complete: fn || !fn && easing ||
			jQuery.isFunction( speed ) && speed,
		duration: speed,
		easing: fn && easing || easing && !jQuery.isFunction( easing ) && easing
	};

	// Go to the end state if fx are off
	if ( jQuery.fx.off ) {
		opt.duration = 0;

	} else {
		if ( typeof opt.duration !== "number" ) {
			if ( opt.duration in jQuery.fx.speeds ) {
				opt.duration = jQuery.fx.speeds[ opt.duration ];

			} else {
				opt.duration = jQuery.fx.speeds._default;
			}
		}
	}

	// Normalize opt.queue - true/undefined/null -> "fx"
	if ( opt.queue == null || opt.queue === true ) {
		opt.queue = "fx";
	}

	// Queueing
	opt.old = opt.complete;

	opt.complete = function() {
		if ( jQuery.isFunction( opt.old ) ) {
			opt.old.call( this );
		}

		if ( opt.queue ) {
			jQuery.dequeue( this, opt.queue );
		}
	};

	return opt;
};

jQuery.fn.extend( {
	fadeTo: function( speed, to, easing, callback ) {

		// Show any hidden elements after setting opacity to 0
		return this.filter( isHiddenWithinTree ).css( "opacity", 0 ).show()

			// Animate to the value specified
			.end().animate( { opacity: to }, speed, easing, callback );
	},
	animate: function( prop, speed, easing, callback ) {
		var empty = jQuery.isEmptyObject( prop ),
			optall = jQuery.speed( speed, easing, callback ),
			doAnimation = function() {

				// Operate on a copy of prop so per-property easing won't be lost
				var anim = Animation( this, jQuery.extend( {}, prop ), optall );

				// Empty animations, or finishing resolves immediately
				if ( empty || dataPriv.get( this, "finish" ) ) {
					anim.stop( true );
				}
			};
			doAnimation.finish = doAnimation;

		return empty || optall.queue === false ?
			this.each( doAnimation ) :
			this.queue( optall.queue, doAnimation );
	},
	stop: function( type, clearQueue, gotoEnd ) {
		var stopQueue = function( hooks ) {
			var stop = hooks.stop;
			delete hooks.stop;
			stop( gotoEnd );
		};

		if ( typeof type !== "string" ) {
			gotoEnd = clearQueue;
			clearQueue = type;
			type = undefined;
		}
		if ( clearQueue && type !== false ) {
			this.queue( type || "fx", [] );
		}

		return this.each( function() {
			var dequeue = true,
				index = type != null && type + "queueHooks",
				timers = jQuery.timers,
				data = dataPriv.get( this );

			if ( index ) {
				if ( data[ index ] && data[ index ].stop ) {
					stopQueue( data[ index ] );
				}
			} else {
				for ( index in data ) {
					if ( data[ index ] && data[ index ].stop && rrun.test( index ) ) {
						stopQueue( data[ index ] );
					}
				}
			}

			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this &&
					( type == null || timers[ index ].queue === type ) ) {

					timers[ index ].anim.stop( gotoEnd );
					dequeue = false;
					timers.splice( index, 1 );
				}
			}

			// Start the next in the queue if the last step wasn't forced.
			// Timers currently will call their complete callbacks, which
			// will dequeue but only if they were gotoEnd.
			if ( dequeue || !gotoEnd ) {
				jQuery.dequeue( this, type );
			}
		} );
	},
	finish: function( type ) {
		if ( type !== false ) {
			type = type || "fx";
		}
		return this.each( function() {
			var index,
				data = dataPriv.get( this ),
				queue = data[ type + "queue" ],
				hooks = data[ type + "queueHooks" ],
				timers = jQuery.timers,
				length = queue ? queue.length : 0;

			// Enable finishing flag on private data
			data.finish = true;

			// Empty the queue first
			jQuery.queue( this, type, [] );

			if ( hooks && hooks.stop ) {
				hooks.stop.call( this, true );
			}

			// Look for any active animations, and finish them
			for ( index = timers.length; index--; ) {
				if ( timers[ index ].elem === this && timers[ index ].queue === type ) {
					timers[ index ].anim.stop( true );
					timers.splice( index, 1 );
				}
			}

			// Look for any animations in the old queue and finish them
			for ( index = 0; index < length; index++ ) {
				if ( queue[ index ] && queue[ index ].finish ) {
					queue[ index ].finish.call( this );
				}
			}

			// Turn off finishing flag
			delete data.finish;
		} );
	}
} );

jQuery.each( [ "toggle", "show", "hide" ], function( i, name ) {
	var cssFn = jQuery.fn[ name ];
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return speed == null || typeof speed === "boolean" ?
			cssFn.apply( this, arguments ) :
			this.animate( genFx( name, true ), speed, easing, callback );
	};
} );

// Generate shortcuts for custom animations
jQuery.each( {
	slideDown: genFx( "show" ),
	slideUp: genFx( "hide" ),
	slideToggle: genFx( "toggle" ),
	fadeIn: { opacity: "show" },
	fadeOut: { opacity: "hide" },
	fadeToggle: { opacity: "toggle" }
}, function( name, props ) {
	jQuery.fn[ name ] = function( speed, easing, callback ) {
		return this.animate( props, speed, easing, callback );
	};
} );

jQuery.timers = [];
jQuery.fx.tick = function() {
	var timer,
		i = 0,
		timers = jQuery.timers;

	fxNow = jQuery.now();

	for ( ; i < timers.length; i++ ) {
		timer = timers[ i ];

		// Run the timer and safely remove it when done (allowing for external removal)
		if ( !timer() && timers[ i ] === timer ) {
			timers.splice( i--, 1 );
		}
	}

	if ( !timers.length ) {
		jQuery.fx.stop();
	}
	fxNow = undefined;
};

jQuery.fx.timer = function( timer ) {
	jQuery.timers.push( timer );
	jQuery.fx.start();
};

jQuery.fx.interval = 13;
jQuery.fx.start = function() {
	if ( inProgress ) {
		return;
	}

	inProgress = true;
	schedule();
};

jQuery.fx.stop = function() {
	inProgress = null;
};

jQuery.fx.speeds = {
	slow: 600,
	fast: 200,

	// Default speed
	_default: 400
};


// Based off of the plugin by Clint Helfers, with permission.
// https://web.archive.org/web/20100324014747/http://blindsignals.com/index.php/2009/07/jquery-delay/
jQuery.fn.delay = function( time, type ) {
	time = jQuery.fx ? jQuery.fx.speeds[ time ] || time : time;
	type = type || "fx";

	return this.queue( type, function( next, hooks ) {
		var timeout = window.setTimeout( next, time );
		hooks.stop = function() {
			window.clearTimeout( timeout );
		};
	} );
};


( function() {
	var input = document.createElement( "input" ),
		select = document.createElement( "select" ),
		opt = select.appendChild( document.createElement( "option" ) );

	input.type = "checkbox";

	// Support: Android <=4.3 only
	// Default value for a checkbox should be "on"
	support.checkOn = input.value !== "";

	// Support: IE <=11 only
	// Must access selectedIndex to make default options select
	support.optSelected = opt.selected;

	// Support: IE <=11 only
	// An input loses its value after becoming a radio
	input = document.createElement( "input" );
	input.value = "t";
	input.type = "radio";
	support.radioValue = input.value === "t";
} )();


var boolHook,
	attrHandle = jQuery.expr.attrHandle;

jQuery.fn.extend( {
	attr: function( name, value ) {
		return access( this, jQuery.attr, name, value, arguments.length > 1 );
	},

	removeAttr: function( name ) {
		return this.each( function() {
			jQuery.removeAttr( this, name );
		} );
	}
} );

jQuery.extend( {
	attr: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set attributes on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		// Fallback to prop when attributes are not supported
		if ( typeof elem.getAttribute === "undefined" ) {
			return jQuery.prop( elem, name, value );
		}

		// Attribute hooks are determined by the lowercase version
		// Grab necessary hook if one is defined
		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
			hooks = jQuery.attrHooks[ name.toLowerCase() ] ||
				( jQuery.expr.match.bool.test( name ) ? boolHook : undefined );
		}

		if ( value !== undefined ) {
			if ( value === null ) {
				jQuery.removeAttr( elem, name );
				return;
			}

			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			elem.setAttribute( name, value + "" );
			return value;
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		ret = jQuery.find.attr( elem, name );

		// Non-existent attributes return null, we normalize to undefined
		return ret == null ? undefined : ret;
	},

	attrHooks: {
		type: {
			set: function( elem, value ) {
				if ( !support.radioValue && value === "radio" &&
					nodeName( elem, "input" ) ) {
					var val = elem.value;
					elem.setAttribute( "type", value );
					if ( val ) {
						elem.value = val;
					}
					return value;
				}
			}
		}
	},

	removeAttr: function( elem, value ) {
		var name,
			i = 0,

			// Attribute names can contain non-HTML whitespace characters
			// https://html.spec.whatwg.org/multipage/syntax.html#attributes-2
			attrNames = value && value.match( rnothtmlwhite );

		if ( attrNames && elem.nodeType === 1 ) {
			while ( ( name = attrNames[ i++ ] ) ) {
				elem.removeAttribute( name );
			}
		}
	}
} );

// Hooks for boolean attributes
boolHook = {
	set: function( elem, value, name ) {
		if ( value === false ) {

			// Remove boolean attributes when set to false
			jQuery.removeAttr( elem, name );
		} else {
			elem.setAttribute( name, name );
		}
		return name;
	}
};

jQuery.each( jQuery.expr.match.bool.source.match( /\w+/g ), function( i, name ) {
	var getter = attrHandle[ name ] || jQuery.find.attr;

	attrHandle[ name ] = function( elem, name, isXML ) {
		var ret, handle,
			lowercaseName = name.toLowerCase();

		if ( !isXML ) {

			// Avoid an infinite loop by temporarily removing this function from the getter
			handle = attrHandle[ lowercaseName ];
			attrHandle[ lowercaseName ] = ret;
			ret = getter( elem, name, isXML ) != null ?
				lowercaseName :
				null;
			attrHandle[ lowercaseName ] = handle;
		}
		return ret;
	};
} );




var rfocusable = /^(?:input|select|textarea|button)$/i,
	rclickable = /^(?:a|area)$/i;

jQuery.fn.extend( {
	prop: function( name, value ) {
		return access( this, jQuery.prop, name, value, arguments.length > 1 );
	},

	removeProp: function( name ) {
		return this.each( function() {
			delete this[ jQuery.propFix[ name ] || name ];
		} );
	}
} );

jQuery.extend( {
	prop: function( elem, name, value ) {
		var ret, hooks,
			nType = elem.nodeType;

		// Don't get/set properties on text, comment and attribute nodes
		if ( nType === 3 || nType === 8 || nType === 2 ) {
			return;
		}

		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {

			// Fix name and attach hooks
			name = jQuery.propFix[ name ] || name;
			hooks = jQuery.propHooks[ name ];
		}

		if ( value !== undefined ) {
			if ( hooks && "set" in hooks &&
				( ret = hooks.set( elem, value, name ) ) !== undefined ) {
				return ret;
			}

			return ( elem[ name ] = value );
		}

		if ( hooks && "get" in hooks && ( ret = hooks.get( elem, name ) ) !== null ) {
			return ret;
		}

		return elem[ name ];
	},

	propHooks: {
		tabIndex: {
			get: function( elem ) {

				// Support: IE <=9 - 11 only
				// elem.tabIndex doesn't always return the
				// correct value when it hasn't been explicitly set
				// https://web.archive.org/web/20141116233347/http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
				// Use proper attribute retrieval(#12072)
				var tabindex = jQuery.find.attr( elem, "tabindex" );

				if ( tabindex ) {
					return parseInt( tabindex, 10 );
				}

				if (
					rfocusable.test( elem.nodeName ) ||
					rclickable.test( elem.nodeName ) &&
					elem.href
				) {
					return 0;
				}

				return -1;
			}
		}
	},

	propFix: {
		"for": "htmlFor",
		"class": "className"
	}
} );

// Support: IE <=11 only
// Accessing the selectedIndex property
// forces the browser to respect setting selected
// on the option
// The getter ensures a default option is selected
// when in an optgroup
// eslint rule "no-unused-expressions" is disabled for this code
// since it considers such accessions noop
if ( !support.optSelected ) {
	jQuery.propHooks.selected = {
		get: function( elem ) {

			/* eslint no-unused-expressions: "off" */

			var parent = elem.parentNode;
			if ( parent && parent.parentNode ) {
				parent.parentNode.selectedIndex;
			}
			return null;
		},
		set: function( elem ) {

			/* eslint no-unused-expressions: "off" */

			var parent = elem.parentNode;
			if ( parent ) {
				parent.selectedIndex;

				if ( parent.parentNode ) {
					parent.parentNode.selectedIndex;
				}
			}
		}
	};
}

jQuery.each( [
	"tabIndex",
	"readOnly",
	"maxLength",
	"cellSpacing",
	"cellPadding",
	"rowSpan",
	"colSpan",
	"useMap",
	"frameBorder",
	"contentEditable"
], function() {
	jQuery.propFix[ this.toLowerCase() ] = this;
} );




	// Strip and collapse whitespace according to HTML spec
	// https://html.spec.whatwg.org/multipage/infrastructure.html#strip-and-collapse-whitespace
	function stripAndCollapse( value ) {
		var tokens = value.match( rnothtmlwhite ) || [];
		return tokens.join( " " );
	}


function getClass( elem ) {
	return elem.getAttribute && elem.getAttribute( "class" ) || "";
}

jQuery.fn.extend( {
	addClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).addClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( typeof value === "string" && value ) {
			classes = value.match( rnothtmlwhite ) || [];

			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );
				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {
						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
							cur += clazz + " ";
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = stripAndCollapse( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	removeClass: function( value ) {
		var classes, elem, cur, curValue, clazz, j, finalValue,
			i = 0;

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( j ) {
				jQuery( this ).removeClass( value.call( this, j, getClass( this ) ) );
			} );
		}

		if ( !arguments.length ) {
			return this.attr( "class", "" );
		}

		if ( typeof value === "string" && value ) {
			classes = value.match( rnothtmlwhite ) || [];

			while ( ( elem = this[ i++ ] ) ) {
				curValue = getClass( elem );

				// This expression is here for better compressibility (see addClass)
				cur = elem.nodeType === 1 && ( " " + stripAndCollapse( curValue ) + " " );

				if ( cur ) {
					j = 0;
					while ( ( clazz = classes[ j++ ] ) ) {

						// Remove *all* instances
						while ( cur.indexOf( " " + clazz + " " ) > -1 ) {
							cur = cur.replace( " " + clazz + " ", " " );
						}
					}

					// Only assign if different to avoid unneeded rendering.
					finalValue = stripAndCollapse( cur );
					if ( curValue !== finalValue ) {
						elem.setAttribute( "class", finalValue );
					}
				}
			}
		}

		return this;
	},

	toggleClass: function( value, stateVal ) {
		var type = typeof value;

		if ( typeof stateVal === "boolean" && type === "string" ) {
			return stateVal ? this.addClass( value ) : this.removeClass( value );
		}

		if ( jQuery.isFunction( value ) ) {
			return this.each( function( i ) {
				jQuery( this ).toggleClass(
					value.call( this, i, getClass( this ), stateVal ),
					stateVal
				);
			} );
		}

		return this.each( function() {
			var className, i, self, classNames;

			if ( type === "string" ) {

				// Toggle individual class names
				i = 0;
				self = jQuery( this );
				classNames = value.match( rnothtmlwhite ) || [];

				while ( ( className = classNames[ i++ ] ) ) {

					// Check each className given, space separated list
					if ( self.hasClass( className ) ) {
						self.removeClass( className );
					} else {
						self.addClass( className );
					}
				}

			// Toggle whole class name
			} else if ( value === undefined || type === "boolean" ) {
				className = getClass( this );
				if ( className ) {

					// Store className if set
					dataPriv.set( this, "__className__", className );
				}

				// If the element has a class name or if we're passed `false`,
				// then remove the whole classname (if there was one, the above saved it).
				// Otherwise bring back whatever was previously saved (if anything),
				// falling back to the empty string if nothing was stored.
				if ( this.setAttribute ) {
					this.setAttribute( "class",
						className || value === false ?
						"" :
						dataPriv.get( this, "__className__" ) || ""
					);
				}
			}
		} );
	},

	hasClass: function( selector ) {
		var className, elem,
			i = 0;

		className = " " + selector + " ";
		while ( ( elem = this[ i++ ] ) ) {
			if ( elem.nodeType === 1 &&
				( " " + stripAndCollapse( getClass( elem ) ) + " " ).indexOf( className ) > -1 ) {
					return true;
			}
		}

		return false;
	}
} );




var rreturn = /\r/g;

jQuery.fn.extend( {
	val: function( value ) {
		var hooks, ret, isFunction,
			elem = this[ 0 ];

		if ( !arguments.length ) {
			if ( elem ) {
				hooks = jQuery.valHooks[ elem.type ] ||
					jQuery.valHooks[ elem.nodeName.toLowerCase() ];

				if ( hooks &&
					"get" in hooks &&
					( ret = hooks.get( elem, "value" ) ) !== undefined
				) {
					return ret;
				}

				ret = elem.value;

				// Handle most common string cases
				if ( typeof ret === "string" ) {
					return ret.replace( rreturn, "" );
				}

				// Handle cases where value is null/undef or number
				return ret == null ? "" : ret;
			}

			return;
		}

		isFunction = jQuery.isFunction( value );

		return this.each( function( i ) {
			var val;

			if ( this.nodeType !== 1 ) {
				return;
			}

			if ( isFunction ) {
				val = value.call( this, i, jQuery( this ).val() );
			} else {
				val = value;
			}

			// Treat null/undefined as ""; convert numbers to string
			if ( val == null ) {
				val = "";

			} else if ( typeof val === "number" ) {
				val += "";

			} else if ( Array.isArray( val ) ) {
				val = jQuery.map( val, function( value ) {
					return value == null ? "" : value + "";
				} );
			}

			hooks = jQuery.valHooks[ this.type ] || jQuery.valHooks[ this.nodeName.toLowerCase() ];

			// If set returns undefined, fall back to normal setting
			if ( !hooks || !( "set" in hooks ) || hooks.set( this, val, "value" ) === undefined ) {
				this.value = val;
			}
		} );
	}
} );

jQuery.extend( {
	valHooks: {
		option: {
			get: function( elem ) {

				var val = jQuery.find.attr( elem, "value" );
				return val != null ?
					val :

					// Support: IE <=10 - 11 only
					// option.text throws exceptions (#14686, #14858)
					// Strip and collapse whitespace
					// https://html.spec.whatwg.org/#strip-and-collapse-whitespace
					stripAndCollapse( jQuery.text( elem ) );
			}
		},
		select: {
			get: function( elem ) {
				var value, option, i,
					options = elem.options,
					index = elem.selectedIndex,
					one = elem.type === "select-one",
					values = one ? null : [],
					max = one ? index + 1 : options.length;

				if ( index < 0 ) {
					i = max;

				} else {
					i = one ? index : 0;
				}

				// Loop through all the selected options
				for ( ; i < max; i++ ) {
					option = options[ i ];

					// Support: IE <=9 only
					// IE8-9 doesn't update selected after form reset (#2551)
					if ( ( option.selected || i === index ) &&

							// Don't return options that are disabled or in a disabled optgroup
							!option.disabled &&
							( !option.parentNode.disabled ||
								!nodeName( option.parentNode, "optgroup" ) ) ) {

						// Get the specific value for the option
						value = jQuery( option ).val();

						// We don't need an array for one selects
						if ( one ) {
							return value;
						}

						// Multi-Selects return an array
						values.push( value );
					}
				}

				return values;
			},

			set: function( elem, value ) {
				var optionSet, option,
					options = elem.options,
					values = jQuery.makeArray( value ),
					i = options.length;

				while ( i-- ) {
					option = options[ i ];

					/* eslint-disable no-cond-assign */

					if ( option.selected =
						jQuery.inArray( jQuery.valHooks.option.get( option ), values ) > -1
					) {
						optionSet = true;
					}

					/* eslint-enable no-cond-assign */
				}

				// Force browsers to behave consistently when non-matching value is set
				if ( !optionSet ) {
					elem.selectedIndex = -1;
				}
				return values;
			}
		}
	}
} );

// Radios and checkboxes getter/setter
jQuery.each( [ "radio", "checkbox" ], function() {
	jQuery.valHooks[ this ] = {
		set: function( elem, value ) {
			if ( Array.isArray( value ) ) {
				return ( elem.checked = jQuery.inArray( jQuery( elem ).val(), value ) > -1 );
			}
		}
	};
	if ( !support.checkOn ) {
		jQuery.valHooks[ this ].get = function( elem ) {
			return elem.getAttribute( "value" ) === null ? "on" : elem.value;
		};
	}
} );




// Return jQuery for attributes-only inclusion


var rfocusMorph = /^(?:focusinfocus|focusoutblur)$/;

jQuery.extend( jQuery.event, {

	trigger: function( event, data, elem, onlyHandlers ) {

		var i, cur, tmp, bubbleType, ontype, handle, special,
			eventPath = [ elem || document ],
			type = hasOwn.call( event, "type" ) ? event.type : event,
			namespaces = hasOwn.call( event, "namespace" ) ? event.namespace.split( "." ) : [];

		cur = tmp = elem = elem || document;

		// Don't do events on text and comment nodes
		if ( elem.nodeType === 3 || elem.nodeType === 8 ) {
			return;
		}

		// focus/blur morphs to focusin/out; ensure we're not firing them right now
		if ( rfocusMorph.test( type + jQuery.event.triggered ) ) {
			return;
		}

		if ( type.indexOf( "." ) > -1 ) {

			// Namespaced trigger; create a regexp to match event type in handle()
			namespaces = type.split( "." );
			type = namespaces.shift();
			namespaces.sort();
		}
		ontype = type.indexOf( ":" ) < 0 && "on" + type;

		// Caller can pass in a jQuery.Event object, Object, or just an event type string
		event = event[ jQuery.expando ] ?
			event :
			new jQuery.Event( type, typeof event === "object" && event );

		// Trigger bitmask: & 1 for native handlers; & 2 for jQuery (always true)
		event.isTrigger = onlyHandlers ? 2 : 3;
		event.namespace = namespaces.join( "." );
		event.rnamespace = event.namespace ?
			new RegExp( "(^|\\.)" + namespaces.join( "\\.(?:.*\\.|)" ) + "(\\.|$)" ) :
			null;

		// Clean up the event in case it is being reused
		event.result = undefined;
		if ( !event.target ) {
			event.target = elem;
		}

		// Clone any incoming data and prepend the event, creating the handler arg list
		data = data == null ?
			[ event ] :
			jQuery.makeArray( data, [ event ] );

		// Allow special events to draw outside the lines
		special = jQuery.event.special[ type ] || {};
		if ( !onlyHandlers && special.trigger && special.trigger.apply( elem, data ) === false ) {
			return;
		}

		// Determine event propagation path in advance, per W3C events spec (#9951)
		// Bubble up to document, then to window; watch for a global ownerDocument var (#9724)
		if ( !onlyHandlers && !special.noBubble && !jQuery.isWindow( elem ) ) {

			bubbleType = special.delegateType || type;
			if ( !rfocusMorph.test( bubbleType + type ) ) {
				cur = cur.parentNode;
			}
			for ( ; cur; cur = cur.parentNode ) {
				eventPath.push( cur );
				tmp = cur;
			}

			// Only add window if we got to document (e.g., not plain obj or detached DOM)
			if ( tmp === ( elem.ownerDocument || document ) ) {
				eventPath.push( tmp.defaultView || tmp.parentWindow || window );
			}
		}

		// Fire handlers on the event path
		i = 0;
		while ( ( cur = eventPath[ i++ ] ) && !event.isPropagationStopped() ) {

			event.type = i > 1 ?
				bubbleType :
				special.bindType || type;

			// jQuery handler
			handle = ( dataPriv.get( cur, "events" ) || {} )[ event.type ] &&
				dataPriv.get( cur, "handle" );
			if ( handle ) {
				handle.apply( cur, data );
			}

			// Native handler
			handle = ontype && cur[ ontype ];
			if ( handle && handle.apply && acceptData( cur ) ) {
				event.result = handle.apply( cur, data );
				if ( event.result === false ) {
					event.preventDefault();
				}
			}
		}
		event.type = type;

		// If nobody prevented the default action, do it now
		if ( !onlyHandlers && !event.isDefaultPrevented() ) {

			if ( ( !special._default ||
				special._default.apply( eventPath.pop(), data ) === false ) &&
				acceptData( elem ) ) {

				// Call a native DOM method on the target with the same name as the event.
				// Don't do default actions on window, that's where global variables be (#6170)
				if ( ontype && jQuery.isFunction( elem[ type ] ) && !jQuery.isWindow( elem ) ) {

					// Don't re-trigger an onFOO event when we call its FOO() method
					tmp = elem[ ontype ];

					if ( tmp ) {
						elem[ ontype ] = null;
					}

					// Prevent re-triggering of the same event, since we already bubbled it above
					jQuery.event.triggered = type;
					elem[ type ]();
					jQuery.event.triggered = undefined;

					if ( tmp ) {
						elem[ ontype ] = tmp;
					}
				}
			}
		}

		return event.result;
	},

	// Piggyback on a donor event to simulate a different one
	// Used only for `focus(in | out)` events
	simulate: function( type, elem, event ) {
		var e = jQuery.extend(
			new jQuery.Event(),
			event,
			{
				type: type,
				isSimulated: true
			}
		);

		jQuery.event.trigger( e, null, elem );
	}

} );

jQuery.fn.extend( {

	trigger: function( type, data ) {
		return this.each( function() {
			jQuery.event.trigger( type, data, this );
		} );
	},
	triggerHandler: function( type, data ) {
		var elem = this[ 0 ];
		if ( elem ) {
			return jQuery.event.trigger( type, data, elem, true );
		}
	}
} );


jQuery.each( ( "blur focus focusin focusout resize scroll click dblclick " +
	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
	"change select submit keydown keypress keyup contextmenu" ).split( " " ),
	function( i, name ) {

	// Handle event binding
	jQuery.fn[ name ] = function( data, fn ) {
		return arguments.length > 0 ?
			this.on( name, null, data, fn ) :
			this.trigger( name );
	};
} );

jQuery.fn.extend( {
	hover: function( fnOver, fnOut ) {
		return this.mouseenter( fnOver ).mouseleave( fnOut || fnOver );
	}
} );




support.focusin = "onfocusin" in window;


// Support: Firefox <=44
// Firefox doesn't have focus(in | out) events
// Related ticket - https://bugzilla.mozilla.org/show_bug.cgi?id=687787
//
// Support: Chrome <=48 - 49, Safari <=9.0 - 9.1
// focus(in | out) events fire after focus & blur events,
// which is spec violation - http://www.w3.org/TR/DOM-Level-3-Events/#events-focusevent-event-order
// Related ticket - https://bugs.chromium.org/p/chromium/issues/detail?id=449857
if ( !support.focusin ) {
	jQuery.each( { focus: "focusin", blur: "focusout" }, function( orig, fix ) {

		// Attach a single capturing handler on the document while someone wants focusin/focusout
		var handler = function( event ) {
			jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ) );
		};

		jQuery.event.special[ fix ] = {
			setup: function() {
				var doc = this.ownerDocument || this,
					attaches = dataPriv.access( doc, fix );

				if ( !attaches ) {
					doc.addEventListener( orig, handler, true );
				}
				dataPriv.access( doc, fix, ( attaches || 0 ) + 1 );
			},
			teardown: function() {
				var doc = this.ownerDocument || this,
					attaches = dataPriv.access( doc, fix ) - 1;

				if ( !attaches ) {
					doc.removeEventListener( orig, handler, true );
					dataPriv.remove( doc, fix );

				} else {
					dataPriv.access( doc, fix, attaches );
				}
			}
		};
	} );
}
var location = window.location;

var nonce = jQuery.now();

var rquery = ( /\?/ );



// Cross-browser xml parsing
jQuery.parseXML = function( data ) {
	var xml;
	if ( !data || typeof data !== "string" ) {
		return null;
	}

	// Support: IE 9 - 11 only
	// IE throws on parseFromString with invalid input.
	try {
		xml = ( new window.DOMParser() ).parseFromString( data, "text/xml" );
	} catch ( e ) {
		xml = undefined;
	}

	if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
		jQuery.error( "Invalid XML: " + data );
	}
	return xml;
};


var
	rbracket = /\[\]$/,
	rCRLF = /\r?\n/g,
	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
	rsubmittable = /^(?:input|select|textarea|keygen)/i;

function buildParams( prefix, obj, traditional, add ) {
	var name;

	if ( Array.isArray( obj ) ) {

		// Serialize array item.
		jQuery.each( obj, function( i, v ) {
			if ( traditional || rbracket.test( prefix ) ) {

				// Treat each array item as a scalar.
				add( prefix, v );

			} else {

				// Item is non-scalar (array or object), encode its numeric index.
				buildParams(
					prefix + "[" + ( typeof v === "object" && v != null ? i : "" ) + "]",
					v,
					traditional,
					add
				);
			}
		} );

	} else if ( !traditional && jQuery.type( obj ) === "object" ) {

		// Serialize object item.
		for ( name in obj ) {
			buildParams( prefix + "[" + name + "]", obj[ name ], traditional, add );
		}

	} else {

		// Serialize scalar item.
		add( prefix, obj );
	}
}

// Serialize an array of form elements or a set of
// key/values into a query string
jQuery.param = function( a, traditional ) {
	var prefix,
		s = [],
		add = function( key, valueOrFunction ) {

			// If value is a function, invoke it and use its return value
			var value = jQuery.isFunction( valueOrFunction ) ?
				valueOrFunction() :
				valueOrFunction;

			s[ s.length ] = encodeURIComponent( key ) + "=" +
				encodeURIComponent( value == null ? "" : value );
		};

	// If an array was passed in, assume that it is an array of form elements.
	if ( Array.isArray( a ) || ( a.jquery && !jQuery.isPlainObject( a ) ) ) {

		// Serialize the form elements
		jQuery.each( a, function() {
			add( this.name, this.value );
		} );

	} else {

		// If traditional, encode the "old" way (the way 1.3.2 or older
		// did it), otherwise encode params recursively.
		for ( prefix in a ) {
			buildParams( prefix, a[ prefix ], traditional, add );
		}
	}

	// Return the resulting serialization
	return s.join( "&" );
};

jQuery.fn.extend( {
	serialize: function() {
		return jQuery.param( this.serializeArray() );
	},
	serializeArray: function() {
		return this.map( function() {

			// Can add propHook for "elements" to filter or add form elements
			var elements = jQuery.prop( this, "elements" );
			return elements ? jQuery.makeArray( elements ) : this;
		} )
		.filter( function() {
			var type = this.type;

			// Use .is( ":disabled" ) so that fieldset[disabled] works
			return this.name && !jQuery( this ).is( ":disabled" ) &&
				rsubmittable.test( this.nodeName ) && !rsubmitterTypes.test( type ) &&
				( this.checked || !rcheckableType.test( type ) );
		} )
		.map( function( i, elem ) {
			var val = jQuery( this ).val();

			if ( val == null ) {
				return null;
			}

			if ( Array.isArray( val ) ) {
				return jQuery.map( val, function( val ) {
					return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
				} );
			}

			return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
		} ).get();
	}
} );


var
	r20 = /%20/g,
	rhash = /#.*$/,
	rantiCache = /([?&])_=[^&]*/,
	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,

	// #7653, #8125, #8152: local protocol detection
	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
	rnoContent = /^(?:GET|HEAD)$/,
	rprotocol = /^\/\//,

	/* Prefilters
	 * 1) They are useful to introduce custom dataTypes (see ajax/jsonp.js for an example)
	 * 2) These are called:
	 *    - BEFORE asking for a transport
	 *    - AFTER param serialization (s.data is a string if s.processData is true)
	 * 3) key is the dataType
	 * 4) the catchall symbol "*" can be used
	 * 5) execution will start with transport dataType and THEN continue down to "*" if needed
	 */
	prefilters = {},

	/* Transports bindings
	 * 1) key is the dataType
	 * 2) the catchall symbol "*" can be used
	 * 3) selection will start with transport dataType and THEN go to "*" if needed
	 */
	transports = {},

	// Avoid comment-prolog char sequence (#10098); must appease lint and evade compression
	allTypes = "*/".concat( "*" ),

	// Anchor tag for parsing the document origin
	originAnchor = document.createElement( "a" );
	originAnchor.href = location.href;

// Base "constructor" for jQuery.ajaxPrefilter and jQuery.ajaxTransport
function addToPrefiltersOrTransports( structure ) {

	// dataTypeExpression is optional and defaults to "*"
	return function( dataTypeExpression, func ) {

		if ( typeof dataTypeExpression !== "string" ) {
			func = dataTypeExpression;
			dataTypeExpression = "*";
		}

		var dataType,
			i = 0,
			dataTypes = dataTypeExpression.toLowerCase().match( rnothtmlwhite ) || [];

		if ( jQuery.isFunction( func ) ) {

			// For each dataType in the dataTypeExpression
			while ( ( dataType = dataTypes[ i++ ] ) ) {

				// Prepend if requested
				if ( dataType[ 0 ] === "+" ) {
					dataType = dataType.slice( 1 ) || "*";
					( structure[ dataType ] = structure[ dataType ] || [] ).unshift( func );

				// Otherwise append
				} else {
					( structure[ dataType ] = structure[ dataType ] || [] ).push( func );
				}
			}
		}
	};
}

// Base inspection function for prefilters and transports
function inspectPrefiltersOrTransports( structure, options, originalOptions, jqXHR ) {

	var inspected = {},
		seekingTransport = ( structure === transports );

	function inspect( dataType ) {
		var selected;
		inspected[ dataType ] = true;
		jQuery.each( structure[ dataType ] || [], function( _, prefilterOrFactory ) {
			var dataTypeOrTransport = prefilterOrFactory( options, originalOptions, jqXHR );
			if ( typeof dataTypeOrTransport === "string" &&
				!seekingTransport && !inspected[ dataTypeOrTransport ] ) {

				options.dataTypes.unshift( dataTypeOrTransport );
				inspect( dataTypeOrTransport );
				return false;
			} else if ( seekingTransport ) {
				return !( selected = dataTypeOrTransport );
			}
		} );
		return selected;
	}

	return inspect( options.dataTypes[ 0 ] ) || !inspected[ "*" ] && inspect( "*" );
}

// A special extend for ajax options
// that takes "flat" options (not to be deep extended)
// Fixes #9887
function ajaxExtend( target, src ) {
	var key, deep,
		flatOptions = jQuery.ajaxSettings.flatOptions || {};

	for ( key in src ) {
		if ( src[ key ] !== undefined ) {
			( flatOptions[ key ] ? target : ( deep || ( deep = {} ) ) )[ key ] = src[ key ];
		}
	}
	if ( deep ) {
		jQuery.extend( true, target, deep );
	}

	return target;
}

/* Handles responses to an ajax request:
 * - finds the right dataType (mediates between content-type and expected dataType)
 * - returns the corresponding response
 */
function ajaxHandleResponses( s, jqXHR, responses ) {

	var ct, type, finalDataType, firstDataType,
		contents = s.contents,
		dataTypes = s.dataTypes;

	// Remove auto dataType and get content-type in the process
	while ( dataTypes[ 0 ] === "*" ) {
		dataTypes.shift();
		if ( ct === undefined ) {
			ct = s.mimeType || jqXHR.getResponseHeader( "Content-Type" );
		}
	}

	// Check if we're dealing with a known content-type
	if ( ct ) {
		for ( type in contents ) {
			if ( contents[ type ] && contents[ type ].test( ct ) ) {
				dataTypes.unshift( type );
				break;
			}
		}
	}

	// Check to see if we have a response for the expected dataType
	if ( dataTypes[ 0 ] in responses ) {
		finalDataType = dataTypes[ 0 ];
	} else {

		// Try convertible dataTypes
		for ( type in responses ) {
			if ( !dataTypes[ 0 ] || s.converters[ type + " " + dataTypes[ 0 ] ] ) {
				finalDataType = type;
				break;
			}
			if ( !firstDataType ) {
				firstDataType = type;
			}
		}

		// Or just use first one
		finalDataType = finalDataType || firstDataType;
	}

	// If we found a dataType
	// We add the dataType to the list if needed
	// and return the corresponding response
	if ( finalDataType ) {
		if ( finalDataType !== dataTypes[ 0 ] ) {
			dataTypes.unshift( finalDataType );
		}
		return responses[ finalDataType ];
	}
}

/* Chain conversions given the request and the original response
 * Also sets the responseXXX fields on the jqXHR instance
 */
function ajaxConvert( s, response, jqXHR, isSuccess ) {
	var conv2, current, conv, tmp, prev,
		converters = {},

		// Work with a copy of dataTypes in case we need to modify it for conversion
		dataTypes = s.dataTypes.slice();

	// Create converters map with lowercased keys
	if ( dataTypes[ 1 ] ) {
		for ( conv in s.converters ) {
			converters[ conv.toLowerCase() ] = s.converters[ conv ];
		}
	}

	current = dataTypes.shift();

	// Convert to each sequential dataType
	while ( current ) {

		if ( s.responseFields[ current ] ) {
			jqXHR[ s.responseFields[ current ] ] = response;
		}

		// Apply the dataFilter if provided
		if ( !prev && isSuccess && s.dataFilter ) {
			response = s.dataFilter( response, s.dataType );
		}

		prev = current;
		current = dataTypes.shift();

		if ( current ) {

			// There's only work to do if current dataType is non-auto
			if ( current === "*" ) {

				current = prev;

			// Convert response if prev dataType is non-auto and differs from current
			} else if ( prev !== "*" && prev !== current ) {

				// Seek a direct converter
				conv = converters[ prev + " " + current ] || converters[ "* " + current ];

				// If none found, seek a pair
				if ( !conv ) {
					for ( conv2 in converters ) {

						// If conv2 outputs current
						tmp = conv2.split( " " );
						if ( tmp[ 1 ] === current ) {

							// If prev can be converted to accepted input
							conv = converters[ prev + " " + tmp[ 0 ] ] ||
								converters[ "* " + tmp[ 0 ] ];
							if ( conv ) {

								// Condense equivalence converters
								if ( conv === true ) {
									conv = converters[ conv2 ];

								// Otherwise, insert the intermediate dataType
								} else if ( converters[ conv2 ] !== true ) {
									current = tmp[ 0 ];
									dataTypes.unshift( tmp[ 1 ] );
								}
								break;
							}
						}
					}
				}

				// Apply converter (if not an equivalence)
				if ( conv !== true ) {

					// Unless errors are allowed to bubble, catch and return them
					if ( conv && s.throws ) {
						response = conv( response );
					} else {
						try {
							response = conv( response );
						} catch ( e ) {
							return {
								state: "parsererror",
								error: conv ? e : "No conversion from " + prev + " to " + current
							};
						}
					}
				}
			}
		}
	}

	return { state: "success", data: response };
}

jQuery.extend( {

	// Counter for holding the number of active queries
	active: 0,

	// Last-Modified header cache for next request
	lastModified: {},
	etag: {},

	ajaxSettings: {
		url: location.href,
		type: "GET",
		isLocal: rlocalProtocol.test( location.protocol ),
		global: true,
		processData: true,
		async: true,
		contentType: "application/x-www-form-urlencoded; charset=UTF-8",

		/*
		timeout: 0,
		data: null,
		dataType: null,
		username: null,
		password: null,
		cache: null,
		throws: false,
		traditional: false,
		headers: {},
		*/

		accepts: {
			"*": allTypes,
			text: "text/plain",
			html: "text/html",
			xml: "application/xml, text/xml",
			json: "application/json, text/javascript"
		},

		contents: {
			xml: /\bxml\b/,
			html: /\bhtml/,
			json: /\bjson\b/
		},

		responseFields: {
			xml: "responseXML",
			text: "responseText",
			json: "responseJSON"
		},

		// Data converters
		// Keys separate source (or catchall "*") and destination types with a single space
		converters: {

			// Convert anything to text
			"* text": String,

			// Text to html (true = no transformation)
			"text html": true,

			// Evaluate text as a json expression
			"text json": JSON.parse,

			// Parse text as xml
			"text xml": jQuery.parseXML
		},

		// For options that shouldn't be deep extended:
		// you can add your own custom options here if
		// and when you create one that shouldn't be
		// deep extended (see ajaxExtend)
		flatOptions: {
			url: true,
			context: true
		}
	},

	// Creates a full fledged settings object into target
	// with both ajaxSettings and settings fields.
	// If target is omitted, writes into ajaxSettings.
	ajaxSetup: function( target, settings ) {
		return settings ?

			// Building a settings object
			ajaxExtend( ajaxExtend( target, jQuery.ajaxSettings ), settings ) :

			// Extending ajaxSettings
			ajaxExtend( jQuery.ajaxSettings, target );
	},

	ajaxPrefilter: addToPrefiltersOrTransports( prefilters ),
	ajaxTransport: addToPrefiltersOrTransports( transports ),

	// Main method
	ajax: function( url, options ) {

		// If url is an object, simulate pre-1.5 signature
		if ( typeof url === "object" ) {
			options = url;
			url = undefined;
		}

		// Force options to be an object
		options = options || {};

		var transport,

			// URL without anti-cache param
			cacheURL,

			// Response headers
			responseHeadersString,
			responseHeaders,

			// timeout handle
			timeoutTimer,

			// Url cleanup var
			urlAnchor,

			// Request state (becomes false upon send and true upon completion)
			completed,

			// To know if global events are to be dispatched
			fireGlobals,

			// Loop variable
			i,

			// uncached part of the url
			uncached,

			// Create the final options object
			s = jQuery.ajaxSetup( {}, options ),

			// Callbacks context
			callbackContext = s.context || s,

			// Context for global events is callbackContext if it is a DOM node or jQuery collection
			globalEventContext = s.context &&
				( callbackContext.nodeType || callbackContext.jquery ) ?
					jQuery( callbackContext ) :
					jQuery.event,

			// Deferreds
			deferred = jQuery.Deferred(),
			completeDeferred = jQuery.Callbacks( "once memory" ),

			// Status-dependent callbacks
			statusCode = s.statusCode || {},

			// Headers (they are sent all at once)
			requestHeaders = {},
			requestHeadersNames = {},

			// Default abort message
			strAbort = "canceled",

			// Fake xhr
			jqXHR = {
				readyState: 0,

				// Builds headers hashtable if needed
				getResponseHeader: function( key ) {
					var match;
					if ( completed ) {
						if ( !responseHeaders ) {
							responseHeaders = {};
							while ( ( match = rheaders.exec( responseHeadersString ) ) ) {
								responseHeaders[ match[ 1 ].toLowerCase() ] = match[ 2 ];
							}
						}
						match = responseHeaders[ key.toLowerCase() ];
					}
					return match == null ? null : match;
				},

				// Raw string
				getAllResponseHeaders: function() {
					return completed ? responseHeadersString : null;
				},

				// Caches the header
				setRequestHeader: function( name, value ) {
					if ( completed == null ) {
						name = requestHeadersNames[ name.toLowerCase() ] =
							requestHeadersNames[ name.toLowerCase() ] || name;
						requestHeaders[ name ] = value;
					}
					return this;
				},

				// Overrides response content-type header
				overrideMimeType: function( type ) {
					if ( completed == null ) {
						s.mimeType = type;
					}
					return this;
				},

				// Status-dependent callbacks
				statusCode: function( map ) {
					var code;
					if ( map ) {
						if ( completed ) {

							// Execute the appropriate callbacks
							jqXHR.always( map[ jqXHR.status ] );
						} else {

							// Lazy-add the new callbacks in a way that preserves old ones
							for ( code in map ) {
								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
							}
						}
					}
					return this;
				},

				// Cancel the request
				abort: function( statusText ) {
					var finalText = statusText || strAbort;
					if ( transport ) {
						transport.abort( finalText );
					}
					done( 0, finalText );
					return this;
				}
			};

		// Attach deferreds
		deferred.promise( jqXHR );

		// Add protocol if not provided (prefilters might expect it)
		// Handle falsy url in the settings object (#10093: consistency with old signature)
		// We also use the url parameter if available
		s.url = ( ( url || s.url || location.href ) + "" )
			.replace( rprotocol, location.protocol + "//" );

		// Alias method option to type as per ticket #12004
		s.type = options.method || options.type || s.method || s.type;

		// Extract dataTypes list
		s.dataTypes = ( s.dataType || "*" ).toLowerCase().match( rnothtmlwhite ) || [ "" ];

		// A cross-domain request is in order when the origin doesn't match the current origin.
		if ( s.crossDomain == null ) {
			urlAnchor = document.createElement( "a" );

			// Support: IE <=8 - 11, Edge 12 - 13
			// IE throws exception on accessing the href property if url is malformed,
			// e.g. http://example.com:80x/
			try {
				urlAnchor.href = s.url;

				// Support: IE <=8 - 11 only
				// Anchor's host property isn't correctly set when s.url is relative
				urlAnchor.href = urlAnchor.href;
				s.crossDomain = originAnchor.protocol + "//" + originAnchor.host !==
					urlAnchor.protocol + "//" + urlAnchor.host;
			} catch ( e ) {

				// If there is an error parsing the URL, assume it is crossDomain,
				// it can be rejected by the transport if it is invalid
				s.crossDomain = true;
			}
		}

		// Convert data if not already a string
		if ( s.data && s.processData && typeof s.data !== "string" ) {
			s.data = jQuery.param( s.data, s.traditional );
		}

		// Apply prefilters
		inspectPrefiltersOrTransports( prefilters, s, options, jqXHR );

		// If request was aborted inside a prefilter, stop there
		if ( completed ) {
			return jqXHR;
		}

		// We can fire global events as of now if asked to
		// Don't fire events if jQuery.event is undefined in an AMD-usage scenario (#15118)
		fireGlobals = jQuery.event && s.global;

		// Watch for a new set of requests
		if ( fireGlobals && jQuery.active++ === 0 ) {
			jQuery.event.trigger( "ajaxStart" );
		}

		// Uppercase the type
		s.type = s.type.toUpperCase();

		// Determine if request has content
		s.hasContent = !rnoContent.test( s.type );

		// Save the URL in case we're toying with the If-Modified-Since
		// and/or If-None-Match header later on
		// Remove hash to simplify url manipulation
		cacheURL = s.url.replace( rhash, "" );

		// More options handling for requests with no content
		if ( !s.hasContent ) {

			// Remember the hash so we can put it back
			uncached = s.url.slice( cacheURL.length );

			// If data is available, append data to url
			if ( s.data ) {
				cacheURL += ( rquery.test( cacheURL ) ? "&" : "?" ) + s.data;

				// #9682: remove data so that it's not used in an eventual retry
				delete s.data;
			}

			// Add or update anti-cache param if needed
			if ( s.cache === false ) {
				cacheURL = cacheURL.replace( rantiCache, "$1" );
				uncached = ( rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ( nonce++ ) + uncached;
			}

			// Put hash and anti-cache on the URL that will be requested (gh-1732)
			s.url = cacheURL + uncached;

		// Change '%20' to '+' if this is encoded form body content (gh-2658)
		} else if ( s.data && s.processData &&
			( s.contentType || "" ).indexOf( "application/x-www-form-urlencoded" ) === 0 ) {
			s.data = s.data.replace( r20, "+" );
		}

		// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
		if ( s.ifModified ) {
			if ( jQuery.lastModified[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-Modified-Since", jQuery.lastModified[ cacheURL ] );
			}
			if ( jQuery.etag[ cacheURL ] ) {
				jqXHR.setRequestHeader( "If-None-Match", jQuery.etag[ cacheURL ] );
			}
		}

		// Set the correct header, if data is being sent
		if ( s.data && s.hasContent && s.contentType !== false || options.contentType ) {
			jqXHR.setRequestHeader( "Content-Type", s.contentType );
		}

		// Set the Accepts header for the server, depending on the dataType
		jqXHR.setRequestHeader(
			"Accept",
			s.dataTypes[ 0 ] && s.accepts[ s.dataTypes[ 0 ] ] ?
				s.accepts[ s.dataTypes[ 0 ] ] +
					( s.dataTypes[ 0 ] !== "*" ? ", " + allTypes + "; q=0.01" : "" ) :
				s.accepts[ "*" ]
		);

		// Check for headers option
		for ( i in s.headers ) {
			jqXHR.setRequestHeader( i, s.headers[ i ] );
		}

		// Allow custom headers/mimetypes and early abort
		if ( s.beforeSend &&
			( s.beforeSend.call( callbackContext, jqXHR, s ) === false || completed ) ) {

			// Abort if not done already and return
			return jqXHR.abort();
		}

		// Aborting is no longer a cancellation
		strAbort = "abort";

		// Install callbacks on deferreds
		completeDeferred.add( s.complete );
		jqXHR.done( s.success );
		jqXHR.fail( s.error );

		// Get transport
		transport = inspectPrefiltersOrTransports( transports, s, options, jqXHR );

		// If no transport, we auto-abort
		if ( !transport ) {
			done( -1, "No Transport" );
		} else {
			jqXHR.readyState = 1;

			// Send global event
			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxSend", [ jqXHR, s ] );
			}

			// If request was aborted inside ajaxSend, stop there
			if ( completed ) {
				return jqXHR;
			}

			// Timeout
			if ( s.async && s.timeout > 0 ) {
				timeoutTimer = window.setTimeout( function() {
					jqXHR.abort( "timeout" );
				}, s.timeout );
			}

			try {
				completed = false;
				transport.send( requestHeaders, done );
			} catch ( e ) {

				// Rethrow post-completion exceptions
				if ( completed ) {
					throw e;
				}

				// Propagate others as results
				done( -1, e );
			}
		}

		// Callback for when everything is done
		function done( status, nativeStatusText, responses, headers ) {
			var isSuccess, success, error, response, modified,
				statusText = nativeStatusText;

			// Ignore repeat invocations
			if ( completed ) {
				return;
			}

			completed = true;

			// Clear timeout if it exists
			if ( timeoutTimer ) {
				window.clearTimeout( timeoutTimer );
			}

			// Dereference transport for early garbage collection
			// (no matter how long the jqXHR object will be used)
			transport = undefined;

			// Cache response headers
			responseHeadersString = headers || "";

			// Set readyState
			jqXHR.readyState = status > 0 ? 4 : 0;

			// Determine if successful
			isSuccess = status >= 200 && status < 300 || status === 304;

			// Get response data
			if ( responses ) {
				response = ajaxHandleResponses( s, jqXHR, responses );
			}

			// Convert no matter what (that way responseXXX fields are always set)
			response = ajaxConvert( s, response, jqXHR, isSuccess );

			// If successful, handle type chaining
			if ( isSuccess ) {

				// Set the If-Modified-Since and/or If-None-Match header, if in ifModified mode.
				if ( s.ifModified ) {
					modified = jqXHR.getResponseHeader( "Last-Modified" );
					if ( modified ) {
						jQuery.lastModified[ cacheURL ] = modified;
					}
					modified = jqXHR.getResponseHeader( "etag" );
					if ( modified ) {
						jQuery.etag[ cacheURL ] = modified;
					}
				}

				// if no content
				if ( status === 204 || s.type === "HEAD" ) {
					statusText = "nocontent";

				// if not modified
				} else if ( status === 304 ) {
					statusText = "notmodified";

				// If we have data, let's convert it
				} else {
					statusText = response.state;
					success = response.data;
					error = response.error;
					isSuccess = !error;
				}
			} else {

				// Extract error from statusText and normalize for non-aborts
				error = statusText;
				if ( status || !statusText ) {
					statusText = "error";
					if ( status < 0 ) {
						status = 0;
					}
				}
			}

			// Set data for the fake xhr object
			jqXHR.status = status;
			jqXHR.statusText = ( nativeStatusText || statusText ) + "";

			// Success/Error
			if ( isSuccess ) {
				deferred.resolveWith( callbackContext, [ success, statusText, jqXHR ] );
			} else {
				deferred.rejectWith( callbackContext, [ jqXHR, statusText, error ] );
			}

			// Status-dependent callbacks
			jqXHR.statusCode( statusCode );
			statusCode = undefined;

			if ( fireGlobals ) {
				globalEventContext.trigger( isSuccess ? "ajaxSuccess" : "ajaxError",
					[ jqXHR, s, isSuccess ? success : error ] );
			}

			// Complete
			completeDeferred.fireWith( callbackContext, [ jqXHR, statusText ] );

			if ( fireGlobals ) {
				globalEventContext.trigger( "ajaxComplete", [ jqXHR, s ] );

				// Handle the global AJAX counter
				if ( !( --jQuery.active ) ) {
					jQuery.event.trigger( "ajaxStop" );
				}
			}
		}

		return jqXHR;
	},

	getJSON: function( url, data, callback ) {
		return jQuery.get( url, data, callback, "json" );
	},

	getScript: function( url, callback ) {
		return jQuery.get( url, undefined, callback, "script" );
	}
} );

jQuery.each( [ "get", "post" ], function( i, method ) {
	jQuery[ method ] = function( url, data, callback, type ) {

		// Shift arguments if data argument was omitted
		if ( jQuery.isFunction( data ) ) {
			type = type || callback;
			callback = data;
			data = undefined;
		}

		// The url can be an options object (which then must have .url)
		return jQuery.ajax( jQuery.extend( {
			url: url,
			type: method,
			dataType: type,
			data: data,
			success: callback
		}, jQuery.isPlainObject( url ) && url ) );
	};
} );


jQuery._evalUrl = function( url ) {
	return jQuery.ajax( {
		url: url,

		// Make this explicit, since user can override this through ajaxSetup (#11264)
		type: "GET",
		dataType: "script",
		cache: true,
		async: false,
		global: false,
		"throws": true
	} );
};


jQuery.fn.extend( {
	wrapAll: function( html ) {
		var wrap;

		if ( this[ 0 ] ) {
			if ( jQuery.isFunction( html ) ) {
				html = html.call( this[ 0 ] );
			}

			// The elements to wrap the target around
			wrap = jQuery( html, this[ 0 ].ownerDocument ).eq( 0 ).clone( true );

			if ( this[ 0 ].parentNode ) {
				wrap.insertBefore( this[ 0 ] );
			}

			wrap.map( function() {
				var elem = this;

				while ( elem.firstElementChild ) {
					elem = elem.firstElementChild;
				}

				return elem;
			} ).append( this );
		}

		return this;
	},

	wrapInner: function( html ) {
		if ( jQuery.isFunction( html ) ) {
			return this.each( function( i ) {
				jQuery( this ).wrapInner( html.call( this, i ) );
			} );
		}

		return this.each( function() {
			var self = jQuery( this ),
				contents = self.contents();

			if ( contents.length ) {
				contents.wrapAll( html );

			} else {
				self.append( html );
			}
		} );
	},

	wrap: function( html ) {
		var isFunction = jQuery.isFunction( html );

		return this.each( function( i ) {
			jQuery( this ).wrapAll( isFunction ? html.call( this, i ) : html );
		} );
	},

	unwrap: function( selector ) {
		this.parent( selector ).not( "body" ).each( function() {
			jQuery( this ).replaceWith( this.childNodes );
		} );
		return this;
	}
} );


jQuery.expr.pseudos.hidden = function( elem ) {
	return !jQuery.expr.pseudos.visible( elem );
};
jQuery.expr.pseudos.visible = function( elem ) {
	return !!( elem.offsetWidth || elem.offsetHeight || elem.getClientRects().length );
};




jQuery.ajaxSettings.xhr = function() {
	try {
		return new window.XMLHttpRequest();
	} catch ( e ) {}
};

var xhrSuccessStatus = {

		// File protocol always yields status code 0, assume 200
		0: 200,

		// Support: IE <=9 only
		// #1450: sometimes IE returns 1223 when it should be 204
		1223: 204
	},
	xhrSupported = jQuery.ajaxSettings.xhr();

support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
support.ajax = xhrSupported = !!xhrSupported;

jQuery.ajaxTransport( function( options ) {
	var callback, errorCallback;

	// Cross domain only allowed if supported through XMLHttpRequest
	if ( support.cors || xhrSupported && !options.crossDomain ) {
		return {
			send: function( headers, complete ) {
				var i,
					xhr = options.xhr();

				xhr.open(
					options.type,
					options.url,
					options.async,
					options.username,
					options.password
				);

				// Apply custom fields if provided
				if ( options.xhrFields ) {
					for ( i in options.xhrFields ) {
						xhr[ i ] = options.xhrFields[ i ];
					}
				}

				// Override mime type if needed
				if ( options.mimeType && xhr.overrideMimeType ) {
					xhr.overrideMimeType( options.mimeType );
				}

				// X-Requested-With header
				// For cross-domain requests, seeing as conditions for a preflight are
				// akin to a jigsaw puzzle, we simply never set it to be sure.
				// (it can always be set on a per-request basis or even using ajaxSetup)
				// For same-domain requests, won't change header if already provided.
				if ( !options.crossDomain && !headers[ "X-Requested-With" ] ) {
					headers[ "X-Requested-With" ] = "XMLHttpRequest";
				}

				// Set headers
				for ( i in headers ) {
					xhr.setRequestHeader( i, headers[ i ] );
				}

				// Callback
				callback = function( type ) {
					return function() {
						if ( callback ) {
							callback = errorCallback = xhr.onload =
								xhr.onerror = xhr.onabort = xhr.onreadystatechange = null;

							if ( type === "abort" ) {
								xhr.abort();
							} else if ( type === "error" ) {

								// Support: IE <=9 only
								// On a manual native abort, IE9 throws
								// errors on any property access that is not readyState
								if ( typeof xhr.status !== "number" ) {
									complete( 0, "error" );
								} else {
									complete(

										// File: protocol always yields status 0; see #8605, #14207
										xhr.status,
										xhr.statusText
									);
								}
							} else {
								complete(
									xhrSuccessStatus[ xhr.status ] || xhr.status,
									xhr.statusText,

									// Support: IE <=9 only
									// IE9 has no XHR2 but throws on binary (trac-11426)
									// For XHR2 non-text, let the caller handle it (gh-2498)
									( xhr.responseType || "text" ) !== "text"  ||
									typeof xhr.responseText !== "string" ?
										{ binary: xhr.response } :
										{ text: xhr.responseText },
									xhr.getAllResponseHeaders()
								);
							}
						}
					};
				};

				// Listen to events
				xhr.onload = callback();
				errorCallback = xhr.onerror = callback( "error" );

				// Support: IE 9 only
				// Use onreadystatechange to replace onabort
				// to handle uncaught aborts
				if ( xhr.onabort !== undefined ) {
					xhr.onabort = errorCallback;
				} else {
					xhr.onreadystatechange = function() {

						// Check readyState before timeout as it changes
						if ( xhr.readyState === 4 ) {

							// Allow onerror to be called first,
							// but that will not handle a native abort
							// Also, save errorCallback to a variable
							// as xhr.onerror cannot be accessed
							window.setTimeout( function() {
								if ( callback ) {
									errorCallback();
								}
							} );
						}
					};
				}

				// Create the abort callback
				callback = callback( "abort" );

				try {

					// Do send the request (this may raise an exception)
					xhr.send( options.hasContent && options.data || null );
				} catch ( e ) {

					// #14683: Only rethrow if this hasn't been notified as an error yet
					if ( callback ) {
						throw e;
					}
				}
			},

			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




// Prevent auto-execution of scripts when no explicit dataType was provided (See gh-2432)
jQuery.ajaxPrefilter( function( s ) {
	if ( s.crossDomain ) {
		s.contents.script = false;
	}
} );

// Install script dataType
jQuery.ajaxSetup( {
	accepts: {
		script: "text/javascript, application/javascript, " +
			"application/ecmascript, application/x-ecmascript"
	},
	contents: {
		script: /\b(?:java|ecma)script\b/
	},
	converters: {
		"text script": function( text ) {
			jQuery.globalEval( text );
			return text;
		}
	}
} );

// Handle cache's special case and crossDomain
jQuery.ajaxPrefilter( "script", function( s ) {
	if ( s.cache === undefined ) {
		s.cache = false;
	}
	if ( s.crossDomain ) {
		s.type = "GET";
	}
} );

// Bind script tag hack transport
jQuery.ajaxTransport( "script", function( s ) {

	// This transport only deals with cross domain requests
	if ( s.crossDomain ) {
		var script, callback;
		return {
			send: function( _, complete ) {
				script = jQuery( "<script>" ).prop( {
					charset: s.scriptCharset,
					src: s.url
				} ).on(
					"load error",
					callback = function( evt ) {
						script.remove();
						callback = null;
						if ( evt ) {
							complete( evt.type === "error" ? 404 : 200, evt.type );
						}
					}
				);

				// Use native DOM manipulation to avoid our domManip AJAX trickery
				document.head.appendChild( script[ 0 ] );
			},
			abort: function() {
				if ( callback ) {
					callback();
				}
			}
		};
	}
} );




var oldCallbacks = [],
	rjsonp = /(=)\?(?=&|$)|\?\?/;

// Default jsonp settings
jQuery.ajaxSetup( {
	jsonp: "callback",
	jsonpCallback: function() {
		var callback = oldCallbacks.pop() || ( jQuery.expando + "_" + ( nonce++ ) );
		this[ callback ] = true;
		return callback;
	}
} );

// Detect, normalize options and install callbacks for jsonp requests
jQuery.ajaxPrefilter( "json jsonp", function( s, originalSettings, jqXHR ) {

	var callbackName, overwritten, responseContainer,
		jsonProp = s.jsonp !== false && ( rjsonp.test( s.url ) ?
			"url" :
			typeof s.data === "string" &&
				( s.contentType || "" )
					.indexOf( "application/x-www-form-urlencoded" ) === 0 &&
				rjsonp.test( s.data ) && "data"
		);

	// Handle iff the expected data type is "jsonp" or we have a parameter to set
	if ( jsonProp || s.dataTypes[ 0 ] === "jsonp" ) {

		// Get callback name, remembering preexisting value associated with it
		callbackName = s.jsonpCallback = jQuery.isFunction( s.jsonpCallback ) ?
			s.jsonpCallback() :
			s.jsonpCallback;

		// Insert callback into url or form data
		if ( jsonProp ) {
			s[ jsonProp ] = s[ jsonProp ].replace( rjsonp, "$1" + callbackName );
		} else if ( s.jsonp !== false ) {
			s.url += ( rquery.test( s.url ) ? "&" : "?" ) + s.jsonp + "=" + callbackName;
		}

		// Use data converter to retrieve json after script execution
		s.converters[ "script json" ] = function() {
			if ( !responseContainer ) {
				jQuery.error( callbackName + " was not called" );
			}
			return responseContainer[ 0 ];
		};

		// Force json dataType
		s.dataTypes[ 0 ] = "json";

		// Install callback
		overwritten = window[ callbackName ];
		window[ callbackName ] = function() {
			responseContainer = arguments;
		};

		// Clean-up function (fires after converters)
		jqXHR.always( function() {

			// If previous value didn't exist - remove it
			if ( overwritten === undefined ) {
				jQuery( window ).removeProp( callbackName );

			// Otherwise restore preexisting value
			} else {
				window[ callbackName ] = overwritten;
			}

			// Save back as free
			if ( s[ callbackName ] ) {

				// Make sure that re-using the options doesn't screw things around
				s.jsonpCallback = originalSettings.jsonpCallback;

				// Save the callback name for future use
				oldCallbacks.push( callbackName );
			}

			// Call if it was a function and we have a response
			if ( responseContainer && jQuery.isFunction( overwritten ) ) {
				overwritten( responseContainer[ 0 ] );
			}

			responseContainer = overwritten = undefined;
		} );

		// Delegate to script
		return "script";
	}
} );




// Support: Safari 8 only
// In Safari 8 documents created via document.implementation.createHTMLDocument
// collapse sibling forms: the second one becomes a child of the first one.
// Because of that, this security measure has to be disabled in Safari 8.
// https://bugs.webkit.org/show_bug.cgi?id=137337
support.createHTMLDocument = ( function() {
	var body = document.implementation.createHTMLDocument( "" ).body;
	body.innerHTML = "<form></form><form></form>";
	return body.childNodes.length === 2;
} )();


// Argument "data" should be string of html
// context (optional): If specified, the fragment will be created in this context,
// defaults to document
// keepScripts (optional): If true, will include scripts passed in the html string
jQuery.parseHTML = function( data, context, keepScripts ) {
	if ( typeof data !== "string" ) {
		return [];
	}
	if ( typeof context === "boolean" ) {
		keepScripts = context;
		context = false;
	}

	var base, parsed, scripts;

	if ( !context ) {

		// Stop scripts or inline event handlers from being executed immediately
		// by using document.implementation
		if ( support.createHTMLDocument ) {
			context = document.implementation.createHTMLDocument( "" );

			// Set the base href for the created document
			// so any parsed elements with URLs
			// are based on the document's URL (gh-2965)
			base = context.createElement( "base" );
			base.href = document.location.href;
			context.head.appendChild( base );
		} else {
			context = document;
		}
	}

	parsed = rsingleTag.exec( data );
	scripts = !keepScripts && [];

	// Single tag
	if ( parsed ) {
		return [ context.createElement( parsed[ 1 ] ) ];
	}

	parsed = buildFragment( [ data ], context, scripts );

	if ( scripts && scripts.length ) {
		jQuery( scripts ).remove();
	}

	return jQuery.merge( [], parsed.childNodes );
};


/**
 * Load a url into a page
 */
jQuery.fn.load = function( url, params, callback ) {
	var selector, type, response,
		self = this,
		off = url.indexOf( " " );

	if ( off > -1 ) {
		selector = stripAndCollapse( url.slice( off ) );
		url = url.slice( 0, off );
	}

	// If it's a function
	if ( jQuery.isFunction( params ) ) {

		// We assume that it's the callback
		callback = params;
		params = undefined;

	// Otherwise, build a param string
	} else if ( params && typeof params === "object" ) {
		type = "POST";
	}

	// If we have elements to modify, make the request
	if ( self.length > 0 ) {
		jQuery.ajax( {
			url: url,

			// If "type" variable is undefined, then "GET" method will be used.
			// Make value of this field explicit since
			// user can override it through ajaxSetup method
			type: type || "GET",
			dataType: "html",
			data: params
		} ).done( function( responseText ) {

			// Save response for use in complete callback
			response = arguments;

			self.html( selector ?

				// If a selector was specified, locate the right elements in a dummy div
				// Exclude scripts to avoid IE 'Permission Denied' errors
				jQuery( "<div>" ).append( jQuery.parseHTML( responseText ) ).find( selector ) :

				// Otherwise use the full result
				responseText );

		// If the request succeeds, this function gets "data", "status", "jqXHR"
		// but they are ignored because response was set above.
		// If it fails, this function gets "jqXHR", "status", "error"
		} ).always( callback && function( jqXHR, status ) {
			self.each( function() {
				callback.apply( this, response || [ jqXHR.responseText, status, jqXHR ] );
			} );
		} );
	}

	return this;
};




// Attach a bunch of functions for handling common AJAX events
jQuery.each( [
	"ajaxStart",
	"ajaxStop",
	"ajaxComplete",
	"ajaxError",
	"ajaxSuccess",
	"ajaxSend"
], function( i, type ) {
	jQuery.fn[ type ] = function( fn ) {
		return this.on( type, fn );
	};
} );




jQuery.expr.pseudos.animated = function( elem ) {
	return jQuery.grep( jQuery.timers, function( fn ) {
		return elem === fn.elem;
	} ).length;
};




jQuery.offset = {
	setOffset: function( elem, options, i ) {
		var curPosition, curLeft, curCSSTop, curTop, curOffset, curCSSLeft, calculatePosition,
			position = jQuery.css( elem, "position" ),
			curElem = jQuery( elem ),
			props = {};

		// Set position first, in-case top/left are set even on static elem
		if ( position === "static" ) {
			elem.style.position = "relative";
		}

		curOffset = curElem.offset();
		curCSSTop = jQuery.css( elem, "top" );
		curCSSLeft = jQuery.css( elem, "left" );
		calculatePosition = ( position === "absolute" || position === "fixed" ) &&
			( curCSSTop + curCSSLeft ).indexOf( "auto" ) > -1;

		// Need to be able to calculate position if either
		// top or left is auto and position is either absolute or fixed
		if ( calculatePosition ) {
			curPosition = curElem.position();
			curTop = curPosition.top;
			curLeft = curPosition.left;

		} else {
			curTop = parseFloat( curCSSTop ) || 0;
			curLeft = parseFloat( curCSSLeft ) || 0;
		}

		if ( jQuery.isFunction( options ) ) {

			// Use jQuery.extend here to allow modification of coordinates argument (gh-1848)
			options = options.call( elem, i, jQuery.extend( {}, curOffset ) );
		}

		if ( options.top != null ) {
			props.top = ( options.top - curOffset.top ) + curTop;
		}
		if ( options.left != null ) {
			props.left = ( options.left - curOffset.left ) + curLeft;
		}

		if ( "using" in options ) {
			options.using.call( elem, props );

		} else {
			curElem.css( props );
		}
	}
};

jQuery.fn.extend( {
	offset: function( options ) {

		// Preserve chaining for setter
		if ( arguments.length ) {
			return options === undefined ?
				this :
				this.each( function( i ) {
					jQuery.offset.setOffset( this, options, i );
				} );
		}

		var doc, docElem, rect, win,
			elem = this[ 0 ];

		if ( !elem ) {
			return;
		}

		// Return zeros for disconnected and hidden (display: none) elements (gh-2310)
		// Support: IE <=11 only
		// Running getBoundingClientRect on a
		// disconnected node in IE throws an error
		if ( !elem.getClientRects().length ) {
			return { top: 0, left: 0 };
		}

		rect = elem.getBoundingClientRect();

		doc = elem.ownerDocument;
		docElem = doc.documentElement;
		win = doc.defaultView;

		return {
			top: rect.top + win.pageYOffset - docElem.clientTop,
			left: rect.left + win.pageXOffset - docElem.clientLeft
		};
	},

	position: function() {
		if ( !this[ 0 ] ) {
			return;
		}

		var offsetParent, offset,
			elem = this[ 0 ],
			parentOffset = { top: 0, left: 0 };

		// Fixed elements are offset from window (parentOffset = {top:0, left: 0},
		// because it is its only offset parent
		if ( jQuery.css( elem, "position" ) === "fixed" ) {

			// Assume getBoundingClientRect is there when computed position is fixed
			offset = elem.getBoundingClientRect();

		} else {

			// Get *real* offsetParent
			offsetParent = this.offsetParent();

			// Get correct offsets
			offset = this.offset();
			if ( !nodeName( offsetParent[ 0 ], "html" ) ) {
				parentOffset = offsetParent.offset();
			}

			// Add offsetParent borders
			parentOffset = {
				top: parentOffset.top + jQuery.css( offsetParent[ 0 ], "borderTopWidth", true ),
				left: parentOffset.left + jQuery.css( offsetParent[ 0 ], "borderLeftWidth", true )
			};
		}

		// Subtract parent offsets and element margins
		return {
			top: offset.top - parentOffset.top - jQuery.css( elem, "marginTop", true ),
			left: offset.left - parentOffset.left - jQuery.css( elem, "marginLeft", true )
		};
	},

	// This method will return documentElement in the following cases:
	// 1) For the element inside the iframe without offsetParent, this method will return
	//    documentElement of the parent window
	// 2) For the hidden or detached element
	// 3) For body or html element, i.e. in case of the html node - it will return itself
	//
	// but those exceptions were never presented as a real life use-cases
	// and might be considered as more preferable results.
	//
	// This logic, however, is not guaranteed and can change at any point in the future
	offsetParent: function() {
		return this.map( function() {
			var offsetParent = this.offsetParent;

			while ( offsetParent && jQuery.css( offsetParent, "position" ) === "static" ) {
				offsetParent = offsetParent.offsetParent;
			}

			return offsetParent || documentElement;
		} );
	}
} );

// Create scrollLeft and scrollTop methods
jQuery.each( { scrollLeft: "pageXOffset", scrollTop: "pageYOffset" }, function( method, prop ) {
	var top = "pageYOffset" === prop;

	jQuery.fn[ method ] = function( val ) {
		return access( this, function( elem, method, val ) {

			// Coalesce documents and windows
			var win;
			if ( jQuery.isWindow( elem ) ) {
				win = elem;
			} else if ( elem.nodeType === 9 ) {
				win = elem.defaultView;
			}

			if ( val === undefined ) {
				return win ? win[ prop ] : elem[ method ];
			}

			if ( win ) {
				win.scrollTo(
					!top ? val : win.pageXOffset,
					top ? val : win.pageYOffset
				);

			} else {
				elem[ method ] = val;
			}
		}, method, val, arguments.length );
	};
} );

// Support: Safari <=7 - 9.1, Chrome <=37 - 49
// Add the top/left cssHooks using jQuery.fn.position
// Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084
// Blink bug: https://bugs.chromium.org/p/chromium/issues/detail?id=589347
// getComputedStyle returns percent when specified for top/left/bottom/right;
// rather than make the css module depend on the offset module, just check for it here
jQuery.each( [ "top", "left" ], function( i, prop ) {
	jQuery.cssHooks[ prop ] = addGetHookIf( support.pixelPosition,
		function( elem, computed ) {
			if ( computed ) {
				computed = curCSS( elem, prop );

				// If curCSS returns percentage, fallback to offset
				return rnumnonpx.test( computed ) ?
					jQuery( elem ).position()[ prop ] + "px" :
					computed;
			}
		}
	);
} );


// Create innerHeight, innerWidth, height, width, outerHeight and outerWidth methods
jQuery.each( { Height: "height", Width: "width" }, function( name, type ) {
	jQuery.each( { padding: "inner" + name, content: type, "": "outer" + name },
		function( defaultExtra, funcName ) {

		// Margin is only for outerHeight, outerWidth
		jQuery.fn[ funcName ] = function( margin, value ) {
			var chainable = arguments.length && ( defaultExtra || typeof margin !== "boolean" ),
				extra = defaultExtra || ( margin === true || value === true ? "margin" : "border" );

			return access( this, function( elem, type, value ) {
				var doc;

				if ( jQuery.isWindow( elem ) ) {

					// $( window ).outerWidth/Height return w/h including scrollbars (gh-1729)
					return funcName.indexOf( "outer" ) === 0 ?
						elem[ "inner" + name ] :
						elem.document.documentElement[ "client" + name ];
				}

				// Get document width or height
				if ( elem.nodeType === 9 ) {
					doc = elem.documentElement;

					// Either scroll[Width/Height] or offset[Width/Height] or client[Width/Height],
					// whichever is greatest
					return Math.max(
						elem.body[ "scroll" + name ], doc[ "scroll" + name ],
						elem.body[ "offset" + name ], doc[ "offset" + name ],
						doc[ "client" + name ]
					);
				}

				return value === undefined ?

					// Get width or height on the element, requesting but not forcing parseFloat
					jQuery.css( elem, type, extra ) :

					// Set width or height on the element
					jQuery.style( elem, type, value, extra );
			}, type, chainable ? margin : undefined, chainable );
		};
	} );
} );


jQuery.fn.extend( {

	bind: function( types, data, fn ) {
		return this.on( types, null, data, fn );
	},
	unbind: function( types, fn ) {
		return this.off( types, null, fn );
	},

	delegate: function( selector, types, data, fn ) {
		return this.on( types, selector, data, fn );
	},
	undelegate: function( selector, types, fn ) {

		// ( namespace ) or ( selector, types [, fn] )
		return arguments.length === 1 ?
			this.off( selector, "**" ) :
			this.off( types, selector || "**", fn );
	},
	holdReady: function( hold ) {
		if ( hold ) {
			jQuery.readyWait++;
		} else {
			jQuery.ready( true );
		}
	}
} );

jQuery.isArray = Array.isArray;
jQuery.parseJSON = JSON.parse;
jQuery.nodeName = nodeName;




// Register as a named AMD module, since jQuery can be concatenated with other
// files that may use define, but not via a proper concatenation script that
// understands anonymous AMD modules. A named AMD is safest and most robust
// way to register. Lowercase jquery is used because AMD module names are
// derived from file names, and jQuery is normally delivered in a lowercase
// file name. Do this after creating the global so that if an AMD module wants
// to call noConflict to hide this version of jQuery, it will work.

// Note that for maximum portability, libraries that are not jQuery should
// declare themselves as anonymous modules, and avoid setting a global if an
// AMD loader is present. jQuery is a special case. For more information, see
// https://github.com/jrburke/requirejs/wiki/Updating-existing-libraries#wiki-anon

if ( typeof define === "function" && define.amd ) {
	define( "jquery", [], function() {
		return jQuery;
	} );
}




var

	// Map over jQuery in case of overwrite
	_jQuery = window.jQuery,

	// Map over the $ in case of overwrite
	_$ = window.$;

jQuery.noConflict = function( deep ) {
	if ( window.$ === jQuery ) {
		window.$ = _$;
	}

	if ( deep && window.jQuery === jQuery ) {
		window.jQuery = _jQuery;
	}

	return jQuery;
};

// Expose jQuery and $ identifiers, even in AMD
// (#7102#comment:10, https://github.com/jquery/jquery/pull/557)
// and CommonJS for browser emulators (#13566)
if ( !noGlobal ) {
	window.jQuery = window.$ = jQuery;
}




return jQuery;
} );

/**
 * bootbox.js [v4.4.0]
 *
 * http://bootboxjs.com/license.txt
 */

// @see https://github.com/makeusabrew/bootbox/issues/180
// @see https://github.com/makeusabrew/bootbox/issues/186
(function (root, factory) {

  "use strict";
  if (typeof define === "function" && define.amd) {
    // AMD. Register as an anonymous module.
    define(["resources/assets/js/001-jquery"], factory);
  } else if (typeof exports === "object") {
    // Node. Does not work with strict CommonJS, but
    // only CommonJS-like environments that support module.exports,
    // like Node.
    module.exports = factory(require("resources/assets/js/001-jquery"));
  } else {
    // Browser globals (root is window)
    root.bootbox = factory(root.jQuery);
  }

}(this, function init($, undefined) {

  "use strict";

  // the base DOM structure needed to create a modal
  var templates = {
    dialog:
      "<div class='bootbox modal' tabindex='-1' role='dialog'>" +
        "<div class='modal-dialog'>" +
          "<div class='modal-content'>" +
            "<div class='modal-body'><div class='bootbox-body'></div></div>" +
          "</div>" +
        "</div>" +
      "</div>",
    header:
      "<div class='modal-header'>" +
        "<h5 class='modal-title'></h5>" +
      "</div>",
    footer:
      "<div class='modal-footer'></div>",
    closeButton:
      "<button type='button' class='bootbox-close-button close' data-dismiss='modal' aria-hidden='true'>&times;</button>",
    form:
      "<form class='bootbox-form'></form>",
    inputs: {
      text:
        "<input class='bootbox-input bootbox-input-text form-control' autocomplete=off type=text />",
      textarea:
        "<textarea class='bootbox-input bootbox-input-textarea form-control'></textarea>",
      email:
        "<input class='bootbox-input bootbox-input-email form-control' autocomplete='off' type='email' />",
      select:
        "<select class='bootbox-input bootbox-input-select form-control'></select>",
      checkbox:
        "<div class='checkbox'><label><input class='bootbox-input bootbox-input-checkbox' type='checkbox' /></label></div>",
      date:
        "<input class='bootbox-input bootbox-input-date form-control' autocomplete=off type='date' />",
      time:
        "<input class='bootbox-input bootbox-input-time form-control' autocomplete=off type='time' />",
      number:
        "<input class='bootbox-input bootbox-input-number form-control' autocomplete=off type='number' />",
      password:
        "<input class='bootbox-input bootbox-input-password form-control' autocomplete='off' type='password' />"
    }
  };

  var defaults = {
    // default language
    locale: "en",
    // show backdrop or not. Default to static so user has to interact with dialog
    backdrop: "static",
    // animate the modal in/out
    animate: true,
    // additional class string applied to the top level dialog
    className: null,
    // whether or not to include a close button
    closeButton: true,
    // show the dialog immediately by default
    show: true,
    // dialog container
    container: "body"
  };

  // our public object; augmented after our private API
  var exports = {};

  /**
   * @private
   */
  function _t(key) {
    var locale = locales[defaults.locale];
    return locale ? locale[key] : locales.en[key];
  }

  function processCallback(e, dialog, callback) {
    e.stopPropagation();
    e.preventDefault();

    // by default we assume a callback will get rid of the dialog,
    // although it is given the opportunity to override this

    // so, if the callback can be invoked and it *explicitly returns false*
    // then we'll set a flag to keep the dialog active...
    var preserveDialog = $.isFunction(callback) && callback.call(dialog, e) === false;

    // ... otherwise we'll bin it
    if (!preserveDialog) {
      dialog.modal("hide");
    }
  }

  function getKeyLength(obj) {
    // @TODO defer to Object.keys(x).length if available?
    var k, t = 0;
    for (k in obj) {
      t ++;
    }
    return t;
  }

  function each(collection, iterator) {
    var index = 0;
    $.each(collection, function(key, value) {
      iterator(key, value, index++);
    });
  }

  function sanitize(options) {
    var buttons;
    var total;

    if (typeof options !== "object") {
      throw new Error("Please supply an object of options");
    }

    if (!options.message) {
      throw new Error("Please specify a message");
    }

    // make sure any supplied options take precedence over defaults
    options = $.extend({}, defaults, options);

    if (!options.buttons) {
      options.buttons = {};
    }

    buttons = options.buttons;

    total = getKeyLength(buttons);

    each(buttons, function(key, button, index) {

      if ($.isFunction(button)) {
        // short form, assume value is our callback. Since button
        // isn't an object it isn't a reference either so re-assign it
        button = buttons[key] = {
          callback: button
        };
      }

      // before any further checks make sure by now button is the correct type
      if ($.type(button) !== "object") {
        throw new Error("button with key " + key + " must be an object");
      }

      if (!button.label) {
        // the lack of an explicit label means we'll assume the key is good enough
        button.label = key;
      }

      if (!button.className) {
        if (total <= 2 && index === total-1) {
          // always add a primary to the main option in a two-button dialog
          button.className = "btn-primary";
        } else {
          button.className = "btn-secondary";
        }
      }
    });

    return options;
  }

  /**
   * map a flexible set of arguments into a single returned object
   * if args.length is already one just return it, otherwise
   * use the properties argument to map the unnamed args to
   * object properties
   * so in the latter case:
   * mapArguments(["foo", $.noop], ["message", "callback"])
   * -> { message: "foo", callback: $.noop }
   */
  function mapArguments(args, properties) {
    var argn = args.length;
    var options = {};

    if (argn < 1 || argn > 2) {
      throw new Error("Invalid argument length");
    }

    if (argn === 2 || typeof args[0] === "string") {
      options[properties[0]] = args[0];
      options[properties[1]] = args[1];
    } else {
      options = args[0];
    }

    return options;
  }

  /**
   * merge a set of default dialog options with user supplied arguments
   */
  function mergeArguments(defaults, args, properties) {
    return $.extend(
      // deep merge
      true,
      // ensure the target is an empty, unreferenced object
      {},
      // the base options object for this type of dialog (often just buttons)
      defaults,
      // args could be an object or array; if it's an array properties will
      // map it to a proper options object
      mapArguments(
        args,
        properties
      )
    );
  }

  /**
   * this entry-level method makes heavy use of composition to take a simple
   * range of inputs and return valid options suitable for passing to bootbox.dialog
   */
  function mergeDialogOptions(className, labels, properties, args) {
    //  build up a base set of dialog properties
    var baseOptions = {
      className: "bootbox-" + className,
      buttons: createLabels.apply(null, labels)
    };

    // ensure the buttons properties generated, *after* merging
    // with user args are still valid against the supplied labels
    return validateButtons(
      // merge the generated base properties with user supplied arguments
      mergeArguments(
        baseOptions,
        args,
        // if args.length > 1, properties specify how each arg maps to an object key
        properties
      ),
      labels
    );
  }

  /**
   * from a given list of arguments return a suitable object of button labels
   * all this does is normalise the given labels and translate them where possible
   * e.g. "ok", "confirm" -> { ok: "OK, cancel: "Annuleren" }
   */
  function createLabels() {
    var buttons = {};

    for (var i = 0, j = arguments.length; i < j; i++) {
      var argument = arguments[i];
      var key = argument.toLowerCase();
      var value = argument.toUpperCase();

      buttons[key] = {
        label: _t(value)
      };
    }

    return buttons;
  }

  function validateButtons(options, buttons) {
    var allowedButtons = {};
    each(buttons, function(key, value) {
      allowedButtons[value] = true;
    });

    each(options.buttons, function(key) {
      if (allowedButtons[key] === undefined) {
        throw new Error("button key " + key + " is not allowed (options are " + buttons.join("\n") + ")");
      }
    });

    return options;
  }

  exports.alert = function() {
    var options;

    options = mergeDialogOptions("alert", ["ok"], ["message", "callback"], arguments);

    if (options.callback && !$.isFunction(options.callback)) {
      throw new Error("alert requires callback property to be a function when provided");
    }

    /**
     * overrides
     */
    options.buttons.ok.callback = options.onEscape = function() {
      if ($.isFunction(options.callback)) {
        return options.callback.call(this);
      }
      return true;
    };

    return exports.dialog(options);
  };

  exports.confirm = function() {
    var options;

    options = mergeDialogOptions("confirm", ["cancel", "confirm"], ["message", "callback"], arguments);

    /**
     * overrides; undo anything the user tried to set they shouldn't have
     */
    options.buttons.cancel.callback = options.onEscape = function() {
      return options.callback.call(this, false);
    };

    options.buttons.confirm.callback = function() {
      return options.callback.call(this, true);
    };

    // confirm specific validation
    if (!$.isFunction(options.callback)) {
      throw new Error("confirm requires a callback");
    }

    return exports.dialog(options);
  };

  exports.prompt = function() {
    var options;
    var defaults;
    var dialog;
    var form;
    var input;
    var shouldShow;
    var inputOptions;

    // we have to create our form first otherwise
    // its value is undefined when gearing up our options
    // @TODO this could be solved by allowing message to
    // be a function instead...
    form = $(templates.form);

    // prompt defaults are more complex than others in that
    // users can override more defaults
    // @TODO I don't like that prompt has to do a lot of heavy
    // lifting which mergeDialogOptions can *almost* support already
    // just because of 'value' and 'inputType' - can we refactor?
    defaults = {
      className: "bootbox-prompt",
      buttons: createLabels("cancel", "confirm"),
      value: "",
      inputType: "text"
    };

    options = validateButtons(
      mergeArguments(defaults, arguments, ["title", "callback"]),
      ["cancel", "confirm"]
    );

    // capture the user's show value; we always set this to false before
    // spawning the dialog to give us a chance to attach some handlers to
    // it, but we need to make sure we respect a preference not to show it
    shouldShow = (options.show === undefined) ? true : options.show;

    /**
     * overrides; undo anything the user tried to set they shouldn't have
     */
    options.message = form;

    options.buttons.cancel.callback = options.onEscape = function() {
      return options.callback.call(this, null);
    };

    options.buttons.confirm.callback = function() {
      var value;

      switch (options.inputType) {
        case "text":
        case "textarea":
        case "email":
        case "select":
        case "date":
        case "time":
        case "number":
        case "password":
          value = input.val();
          break;

        case "checkbox":
          var checkedItems = input.find("input:checked");

          // we assume that checkboxes are always multiple,
          // hence we default to an empty array
          value = [];

          each(checkedItems, function(_, item) {
            value.push($(item).val());
          });
          break;
      }

      return options.callback.call(this, value);
    };

    options.show = false;

    // prompt specific validation
    if (!options.title) {
      throw new Error("prompt requires a title");
    }

    if (!$.isFunction(options.callback)) {
      throw new Error("prompt requires a callback");
    }

    if (!templates.inputs[options.inputType]) {
      throw new Error("invalid prompt type");
    }

    // create the input based on the supplied type
    input = $(templates.inputs[options.inputType]);

    switch (options.inputType) {
      case "text":
      case "textarea":
      case "email":
      case "date":
      case "time":
      case "number":
      case "password":
        input.val(options.value);
        break;

      case "select":
        var groups = {};
        inputOptions = options.inputOptions || [];

        if (!$.isArray(inputOptions)) {
          throw new Error("Please pass an array of input options");
        }

        if (!inputOptions.length) {
          throw new Error("prompt with select requires options");
        }

        each(inputOptions, function(_, option) {

          // assume the element to attach to is the input...
          var elem = input;

          if (option.value === undefined || option.text === undefined) {
            throw new Error("given options in wrong format");
          }

          // ... but override that element if this option sits in a group

          if (option.group) {
            // initialise group if necessary
            if (!groups[option.group]) {
              groups[option.group] = $("<optgroup/>").attr("label", option.group);
            }

            elem = groups[option.group];
          }

          elem.append("<option value='" + option.value + "'>" + option.text + "</option>");
        });

        each(groups, function(_, group) {
          input.append(group);
        });

        // safe to set a select's value as per a normal input
        input.val(options.value);
        break;

      case "checkbox":
        var values   = $.isArray(options.value) ? options.value : [options.value];
        inputOptions = options.inputOptions || [];

        if (!inputOptions.length) {
          throw new Error("prompt with checkbox requires options");
        }

        if (!inputOptions[0].value || !inputOptions[0].text) {
          throw new Error("given options in wrong format");
        }

        // checkboxes have to nest within a containing element, so
        // they break the rules a bit and we end up re-assigning
        // our 'input' element to this container instead
        input = $("<div/>");

        each(inputOptions, function(_, option) {
          var checkbox = $(templates.inputs[options.inputType]);

          checkbox.find("input").attr("value", option.value);
          checkbox.find("label").append(option.text);

          // we've ensured values is an array so we can always iterate over it
          each(values, function(_, value) {
            if (value === option.value) {
              checkbox.find("input").prop("checked", true);
            }
          });

          input.append(checkbox);
        });
        break;
    }

    // @TODO provide an attributes option instead
    // and simply map that as keys: vals
    if (options.placeholder) {
      input.attr("placeholder", options.placeholder);
    }

    if (options.pattern) {
      input.attr("pattern", options.pattern);
    }

    if (options.maxlength) {
      input.attr("maxlength", options.maxlength);
    }

    // now place it in our form
    form.append(input);

    form.on("submit", function(e) {
      e.preventDefault();
      // Fix for SammyJS (or similar JS routing library) hijacking the form post.
      e.stopPropagation();
      // @TODO can we actually click *the* button object instead?
      // e.g. buttons.confirm.click() or similar
      dialog.find(".btn-primary").click();
    });

    dialog = exports.dialog(options);

    // clear the existing handler focusing the submit button...
    dialog.off("shown.bs.modal");

    // ...and replace it with one focusing our input, if possible
    dialog.on("shown.bs.modal", function() {
      // need the closure here since input isn't
      // an object otherwise
      input.focus();
    });

    if (shouldShow === true) {
      dialog.modal("show");
    }

    return dialog;
  };

  exports.dialog = function(options) {
    options = sanitize(options);

    var dialog = $(templates.dialog);
    var innerDialog = dialog.find(".modal-dialog");
    var body = dialog.find(".modal-body");
    var buttons = options.buttons;
    var buttonStr = "";
    var callbacks = {
      onEscape: options.onEscape
    };

    if ($.fn.modal === undefined) {
      throw new Error(
        "$.fn.modal is not defined; please double check you have included " +
        "the Bootstrap JavaScript library. See http://getbootstrap.com/javascript/ " +
        "for more details."
      );
    }

    each(buttons, function(key, button) {

      // @TODO I don't like this string appending to itself; bit dirty. Needs reworking
      // can we just build up button elements instead? slower but neater. Then button
      // can just become a template too
      buttonStr += "<button data-bb-handler='" + key + "' type='button' class='btn " + button.className + "'>" + button.label + "</button>";
      callbacks[key] = button.callback;
    });

    body.find(".bootbox-body").html(options.message);

    if (options.animate === true) {
      dialog.addClass("fade");
    }

    if (options.className) {
      dialog.addClass(options.className);
    }

    if (options.size === "large") {
      innerDialog.addClass("modal-lg");
    } else if (options.size === "small") {
      innerDialog.addClass("modal-sm");
    }

    if (options.title) {
      body.before(templates.header);
    }

    if (options.closeButton) {
      var closeButton = $(templates.closeButton);

      if (options.title) {
        dialog.find(".modal-header").append(closeButton);
      } else {
        closeButton.css("margin-top", "-10px").prependTo(body);
      }
    }

    if (options.title) {
      dialog.find(".modal-title").html(options.title);
    }

    if (buttonStr.length) {
      body.after(templates.footer);
      dialog.find(".modal-footer").html(buttonStr);
    }


    /**
     * Bootstrap event listeners; used handle extra
     * setup & teardown required after the underlying
     * modal has performed certain actions
     */

    dialog.on("hidden.bs.modal", function(e) {
      // ensure we don't accidentally intercept hidden events triggered
      // by children of the current dialog. We shouldn't anymore now BS
      // namespaces its events; but still worth doing
      if (e.target === this) {
        dialog.remove();
      }
    });

    /*
    dialog.on("show.bs.modal", function() {
      // sadly this doesn't work; show is called *just* before
      // the backdrop is added so we'd need a setTimeout hack or
      // otherwise... leaving in as would be nice
      if (options.backdrop) {
        dialog.next(".modal-backdrop").addClass("bootbox-backdrop");
      }
    });
    */

    dialog.on("shown.bs.modal", function() {
      dialog.find(".btn-primary:first").focus();
    });

    /**
     * Bootbox event listeners; experimental and may not last
     * just an attempt to decouple some behaviours from their
     * respective triggers
     */

    if (options.backdrop !== "static") {
      // A boolean true/false according to the Bootstrap docs
      // should show a dialog the user can dismiss by clicking on
      // the background.
      // We always only ever pass static/false to the actual
      // $.modal function because with `true` we can't trap
      // this event (the .modal-backdrop swallows it)
      // However, we still want to sort of respect true
      // and invoke the escape mechanism instead
      dialog.on("click.dismiss.bs.modal", function(e) {
        // @NOTE: the target varies in >= 3.3.x releases since the modal backdrop
        // moved *inside* the outer dialog rather than *alongside* it
        if (dialog.children(".modal-backdrop").length) {
          e.currentTarget = dialog.children(".modal-backdrop").get(0);
        }

        if (e.target !== e.currentTarget) {
          return;
        }

        dialog.trigger("escape.close.bb");
      });
    }

    dialog.on("escape.close.bb", function(e) {
      if (callbacks.onEscape) {
        processCallback(e, dialog, callbacks.onEscape);
      }
    });

    /**
     * Standard jQuery event listeners; used to handle user
     * interaction with our dialog
     */

    dialog.on("click", ".modal-footer button", function(e) {
      var callbackKey = $(this).data("bb-handler");

      processCallback(e, dialog, callbacks[callbackKey]);
    });

    dialog.on("click", ".bootbox-close-button", function(e) {
      // onEscape might be falsy but that's fine; the fact is
      // if the user has managed to click the close button we
      // have to close the dialog, callback or not
      processCallback(e, dialog, callbacks.onEscape);
    });

    dialog.on("keyup", function(e) {
      if (e.which === 27) {
        dialog.trigger("escape.close.bb");
      }
    });

    // the remainder of this method simply deals with adding our
    // dialogent to the DOM, augmenting it with Bootstrap's modal
    // functionality and then giving the resulting object back
    // to our caller

    $(options.container).append(dialog);

    dialog.modal({
      backdrop: options.backdrop ? "static": false,
      keyboard: false,
      show: false
    });

    if (options.show) {
      dialog.modal("show");
    }

    // @TODO should we return the raw element here or should
    // we wrap it in an object on which we can expose some neater
    // methods, e.g. var d = bootbox.alert(); d.hide(); instead
    // of d.modal("hide");

   /*
    function BBDialog(elem) {
      this.elem = elem;
    }

    BBDialog.prototype = {
      hide: function() {
        return this.elem.modal("hide");
      },
      show: function() {
        return this.elem.modal("show");
      }
    };
    */

    return dialog;

  };

  exports.setDefaults = function() {
    var values = {};

    if (arguments.length === 2) {
      // allow passing of single key/value...
      values[arguments[0]] = arguments[1];
    } else {
      // ... and as an object too
      values = arguments[0];
    }

    $.extend(defaults, values);
  };

  exports.hideAll = function() {
    $(".bootbox").modal("hide");

    return exports;
  };


  /**
   * standard locales. Please add more according to ISO 639-1 standard. Multiple language variants are
   * unlikely to be required. If this gets too large it can be split out into separate JS files.
   */
  var locales = {
    bg_BG : {
      OK      : "Ок",
      CANCEL  : "Отказ",
      CONFIRM : "Потвърждавам"
    },
    br : {
      OK      : "OK",
      CANCEL  : "Cancelar",
      CONFIRM : "Sim"
    },
    cs : {
      OK      : "OK",
      CANCEL  : "Zrušit",
      CONFIRM : "Potvrdit"
    },
    da : {
      OK      : "OK",
      CANCEL  : "Annuller",
      CONFIRM : "Accepter"
    },
    de : {
      OK      : "OK",
      CANCEL  : "Abbrechen",
      CONFIRM : "Akzeptieren"
    },
    el : {
      OK      : "Εντάξει",
      CANCEL  : "Ακύρωση",
      CONFIRM : "Επιβεβαίωση"
    },
    en : {
      OK      : "OK",
      CANCEL  : "Cancel",
      CONFIRM : "OK"
    },
    es : {
      OK      : "OK",
      CANCEL  : "Cancelar",
      CONFIRM : "Aceptar"
    },
    et : {
      OK      : "OK",
      CANCEL  : "Katkesta",
      CONFIRM : "OK"
    },
    fa : {
      OK      : "قبول",
      CANCEL  : "لغو",
      CONFIRM : "تایید"
    },
    fi : {
      OK      : "OK",
      CANCEL  : "Peruuta",
      CONFIRM : "OK"
    },
    fr : {
      OK      : "OK",
      CANCEL  : "Annuler",
      CONFIRM : "D'accord"
    },
    he : {
      OK      : "אישור",
      CANCEL  : "ביטול",
      CONFIRM : "אישור"
    },
    hu : {
      OK      : "OK",
      CANCEL  : "Mégsem",
      CONFIRM : "Megerősít"
    },
    hr : {
      OK      : "OK",
      CANCEL  : "Odustani",
      CONFIRM : "Potvrdi"
    },
    id : {
      OK      : "OK",
      CANCEL  : "Batal",
      CONFIRM : "OK"
    },
    it : {
      OK      : "OK",
      CANCEL  : "Annulla",
      CONFIRM : "Conferma"
    },
    ja : {
      OK      : "OK",
      CANCEL  : "キャンセル",
      CONFIRM : "確認"
    },
    lt : {
      OK      : "Gerai",
      CANCEL  : "Atšaukti",
      CONFIRM : "Patvirtinti"
    },
    lv : {
      OK      : "Labi",
      CANCEL  : "Atcelt",
      CONFIRM : "Apstiprināt"
    },
    nl : {
      OK      : "OK",
      CANCEL  : "Annuleren",
      CONFIRM : "Accepteren"
    },
    no : {
      OK      : "OK",
      CANCEL  : "Avbryt",
      CONFIRM : "OK"
    },
    pl : {
      OK      : "OK",
      CANCEL  : "Anuluj",
      CONFIRM : "Potwierdź"
    },
    pt : {
      OK      : "OK",
      CANCEL  : "Cancelar",
      CONFIRM : "Confirmar"
    },
    ru : {
      OK      : "OK",
      CANCEL  : "Отмена",
      CONFIRM : "Применить"
    },
    sq : {
      OK : "OK",
      CANCEL : "Anulo",
      CONFIRM : "Prano"
    },
    sv : {
      OK      : "OK",
      CANCEL  : "Avbryt",
      CONFIRM : "OK"
    },
    th : {
      OK      : "ตกลง",
      CANCEL  : "ยกเลิก",
      CONFIRM : "ยืนยัน"
    },
    tr : {
      OK      : "Tamam",
      CANCEL  : "İptal",
      CONFIRM : "Onayla"
    },
    zh_CN : {
      OK      : "OK",
      CANCEL  : "取消",
      CONFIRM : "确认"
    },
    zh_TW : {
      OK      : "OK",
      CANCEL  : "取消",
      CONFIRM : "確認"
    }
  };

  exports.addLocale = function(name, values) {
    $.each(["OK", "CANCEL", "CONFIRM"], function(_, v) {
      if (!values[v]) {
        throw new Error("Please supply a translation for '" + v + "'");
      }
    });

    locales[name] = {
      OK: values.OK,
      CANCEL: values.CANCEL,
      CONFIRM: values.CONFIRM
    };

    return exports;
  };

  exports.removeLocale = function(name) {
    delete locales[name];

    return exports;
  };

  exports.setLocale = function(name) {
    return exports.setDefaults("locale", name);
  };

  exports.init = function(_$) {
    return init(_$ || $);
  };

  return exports;
}));

/*!
 * Vue.js v2.2.0
 * (c) 2014-2017 Evan You
 * Released under the MIT License.
 */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.Vue = factory());
}(this, (function () { 'use strict';

/*  */

/**
 * Convert a value to a string that is actually rendered.
 */
function _toString (val) {
  return val == null
    ? ''
    : typeof val === 'object'
      ? JSON.stringify(val, null, 2)
      : String(val)
}

/**
 * Convert a input value to a number for persistence.
 * If the conversion fails, return original string.
 */
function toNumber (val) {
  var n = parseFloat(val);
  return isNaN(n) ? val : n
}

/**
 * Make a map and return a function for checking if a key
 * is in that map.
 */
function makeMap (
  str,
  expectsLowerCase
) {
  var map = Object.create(null);
  var list = str.split(',');
  for (var i = 0; i < list.length; i++) {
    map[list[i]] = true;
  }
  return expectsLowerCase
    ? function (val) { return map[val.toLowerCase()]; }
    : function (val) { return map[val]; }
}

/**
 * Check if a tag is a built-in tag.
 */
var isBuiltInTag = makeMap('slot,component', true);

/**
 * Remove an item from an array
 */
function remove (arr, item) {
  if (arr.length) {
    var index = arr.indexOf(item);
    if (index > -1) {
      return arr.splice(index, 1)
    }
  }
}

/**
 * Check whether the object has the property.
 */
var hasOwnProperty = Object.prototype.hasOwnProperty;
function hasOwn (obj, key) {
  return hasOwnProperty.call(obj, key)
}

/**
 * Check if value is primitive
 */
function isPrimitive (value) {
  return typeof value === 'string' || typeof value === 'number'
}

/**
 * Create a cached version of a pure function.
 */
function cached (fn) {
  var cache = Object.create(null);
  return (function cachedFn (str) {
    var hit = cache[str];
    return hit || (cache[str] = fn(str))
  })
}

/**
 * Camelize a hyphen-delimited string.
 */
var camelizeRE = /-(\w)/g;
var camelize = cached(function (str) {
  return str.replace(camelizeRE, function (_, c) { return c ? c.toUpperCase() : ''; })
});

/**
 * Capitalize a string.
 */
var capitalize = cached(function (str) {
  return str.charAt(0).toUpperCase() + str.slice(1)
});

/**
 * Hyphenate a camelCase string.
 */
var hyphenateRE = /([^-])([A-Z])/g;
var hyphenate = cached(function (str) {
  return str
    .replace(hyphenateRE, '$1-$2')
    .replace(hyphenateRE, '$1-$2')
    .toLowerCase()
});

/**
 * Simple bind, faster than native
 */
function bind (fn, ctx) {
  function boundFn (a) {
    var l = arguments.length;
    return l
      ? l > 1
        ? fn.apply(ctx, arguments)
        : fn.call(ctx, a)
      : fn.call(ctx)
  }
  // record original fn length
  boundFn._length = fn.length;
  return boundFn
}

/**
 * Convert an Array-like object to a real Array.
 */
function toArray (list, start) {
  start = start || 0;
  var i = list.length - start;
  var ret = new Array(i);
  while (i--) {
    ret[i] = list[i + start];
  }
  return ret
}

/**
 * Mix properties into target object.
 */
function extend (to, _from) {
  for (var key in _from) {
    to[key] = _from[key];
  }
  return to
}

/**
 * Quick object check - this is primarily used to tell
 * Objects from primitive values when we know the value
 * is a JSON-compliant type.
 */
function isObject (obj) {
  return obj !== null && typeof obj === 'object'
}

/**
 * Strict object type check. Only returns true
 * for plain JavaScript objects.
 */
var toString = Object.prototype.toString;
var OBJECT_STRING = '[object Object]';
function isPlainObject (obj) {
  return toString.call(obj) === OBJECT_STRING
}

/**
 * Merge an Array of Objects into a single Object.
 */
function toObject (arr) {
  var res = {};
  for (var i = 0; i < arr.length; i++) {
    if (arr[i]) {
      extend(res, arr[i]);
    }
  }
  return res
}

/**
 * Perform no operation.
 */
function noop () {}

/**
 * Always return false.
 */
var no = function () { return false; };

/**
 * Return same value
 */
var identity = function (_) { return _; };

/**
 * Generate a static keys string from compiler modules.
 */
function genStaticKeys (modules) {
  return modules.reduce(function (keys, m) {
    return keys.concat(m.staticKeys || [])
  }, []).join(',')
}

/**
 * Check if two values are loosely equal - that is,
 * if they are plain objects, do they have the same shape?
 */
function looseEqual (a, b) {
  var isObjectA = isObject(a);
  var isObjectB = isObject(b);
  if (isObjectA && isObjectB) {
    return JSON.stringify(a) === JSON.stringify(b)
  } else if (!isObjectA && !isObjectB) {
    return String(a) === String(b)
  } else {
    return false
  }
}

function looseIndexOf (arr, val) {
  for (var i = 0; i < arr.length; i++) {
    if (looseEqual(arr[i], val)) { return i }
  }
  return -1
}

/**
 * Ensure a function is called only once.
 */
function once (fn) {
  var called = false;
  return function () {
    if (!called) {
      called = true;
      fn();
    }
  }
}

/*  */

var config = {
  /**
   * Option merge strategies (used in core/util/options)
   */
  optionMergeStrategies: Object.create(null),

  /**
   * Whether to suppress warnings.
   */
  silent: false,

  /**
   * Show production mode tip message on boot?
   */
  productionTip: "development" !== 'production',

  /**
   * Whether to enable devtools
   */
  devtools: "development" !== 'production',

  /**
   * Whether to record perf
   */
  performance: "development" !== 'production',

  /**
   * Error handler for watcher errors
   */
  errorHandler: null,

  /**
   * Ignore certain custom elements
   */
  ignoredElements: [],

  /**
   * Custom user key aliases for v-on
   */
  keyCodes: Object.create(null),

  /**
   * Check if a tag is reserved so that it cannot be registered as a
   * component. This is platform-dependent and may be overwritten.
   */
  isReservedTag: no,

  /**
   * Check if a tag is an unknown element.
   * Platform-dependent.
   */
  isUnknownElement: no,

  /**
   * Get the namespace of an element
   */
  getTagNamespace: noop,

  /**
   * Parse the real tag name for the specific platform.
   */
  parsePlatformTagName: identity,

  /**
   * Check if an attribute must be bound using property, e.g. value
   * Platform-dependent.
   */
  mustUseProp: no,

  /**
   * List of asset types that a component can own.
   */
  _assetTypes: [
    'component',
    'directive',
    'filter'
  ],

  /**
   * List of lifecycle hooks.
   */
  _lifecycleHooks: [
    'beforeCreate',
    'created',
    'beforeMount',
    'mounted',
    'beforeUpdate',
    'updated',
    'beforeDestroy',
    'destroyed',
    'activated',
    'deactivated'
  ],

  /**
   * Max circular updates allowed in a scheduler flush cycle.
   */
  _maxUpdateCount: 100
};

/*  */
/* globals MutationObserver */

// can we use __proto__?
var hasProto = '__proto__' in {};

// Browser environment sniffing
var inBrowser = typeof window !== 'undefined';
var UA = inBrowser && window.navigator.userAgent.toLowerCase();
var isIE = UA && /msie|trident/.test(UA);
var isIE9 = UA && UA.indexOf('msie 9.0') > 0;
var isEdge = UA && UA.indexOf('edge/') > 0;
var isAndroid = UA && UA.indexOf('android') > 0;
var isIOS = UA && /iphone|ipad|ipod|ios/.test(UA);
var isChrome = UA && /chrome\/\d+/.test(UA) && !isEdge;

// this needs to be lazy-evaled because vue may be required before
// vue-server-renderer can set VUE_ENV
var _isServer;
var isServerRendering = function () {
  if (_isServer === undefined) {
    /* istanbul ignore if */
    if (!inBrowser && typeof global !== 'undefined') {
      // detect presence of vue-server-renderer and avoid
      // Webpack shimming the process
      _isServer = global['process'].env.VUE_ENV === 'server';
    } else {
      _isServer = false;
    }
  }
  return _isServer
};

// detect devtools
var devtools = inBrowser && window.__VUE_DEVTOOLS_GLOBAL_HOOK__;

/* istanbul ignore next */
function isNative (Ctor) {
  return /native code/.test(Ctor.toString())
}

var hasSymbol =
  typeof Symbol !== 'undefined' && isNative(Symbol) &&
  typeof Reflect !== 'undefined' && isNative(Reflect.ownKeys);

/**
 * Defer a task to execute it asynchronously.
 */
var nextTick = (function () {
  var callbacks = [];
  var pending = false;
  var timerFunc;

  function nextTickHandler () {
    pending = false;
    var copies = callbacks.slice(0);
    callbacks.length = 0;
    for (var i = 0; i < copies.length; i++) {
      copies[i]();
    }
  }

  // the nextTick behavior leverages the microtask queue, which can be accessed
  // via either native Promise.then or MutationObserver.
  // MutationObserver has wider support, however it is seriously bugged in
  // UIWebView in iOS >= 9.3.3 when triggered in touch event handlers. It
  // completely stops working after triggering a few times... so, if native
  // Promise is available, we will use it:
  /* istanbul ignore if */
  if (typeof Promise !== 'undefined' && isNative(Promise)) {
    var p = Promise.resolve();
    var logError = function (err) { console.error(err); };
    timerFunc = function () {
      p.then(nextTickHandler).catch(logError);
      // in problematic UIWebViews, Promise.then doesn't completely break, but
      // it can get stuck in a weird state where callbacks are pushed into the
      // microtask queue but the queue isn't being flushed, until the browser
      // needs to do some other work, e.g. handle a timer. Therefore we can
      // "force" the microtask queue to be flushed by adding an empty timer.
      if (isIOS) { setTimeout(noop); }
    };
  } else if (typeof MutationObserver !== 'undefined' && (
    isNative(MutationObserver) ||
    // PhantomJS and iOS 7.x
    MutationObserver.toString() === '[object MutationObserverConstructor]'
  )) {
    // use MutationObserver where native Promise is not available,
    // e.g. PhantomJS IE11, iOS7, Android 4.4
    var counter = 1;
    var observer = new MutationObserver(nextTickHandler);
    var textNode = document.createTextNode(String(counter));
    observer.observe(textNode, {
      characterData: true
    });
    timerFunc = function () {
      counter = (counter + 1) % 2;
      textNode.data = String(counter);
    };
  } else {
    // fallback to setTimeout
    /* istanbul ignore next */
    timerFunc = function () {
      setTimeout(nextTickHandler, 0);
    };
  }

  return function queueNextTick (cb, ctx) {
    var _resolve;
    callbacks.push(function () {
      if (cb) { cb.call(ctx); }
      if (_resolve) { _resolve(ctx); }
    });
    if (!pending) {
      pending = true;
      timerFunc();
    }
    if (!cb && typeof Promise !== 'undefined') {
      return new Promise(function (resolve) {
        _resolve = resolve;
      })
    }
  }
})();

var _Set;
/* istanbul ignore if */
if (typeof Set !== 'undefined' && isNative(Set)) {
  // use native Set when available.
  _Set = Set;
} else {
  // a non-standard Set polyfill that only works with primitive keys.
  _Set = (function () {
    function Set () {
      this.set = Object.create(null);
    }
    Set.prototype.has = function has (key) {
      return this.set[key] === true
    };
    Set.prototype.add = function add (key) {
      this.set[key] = true;
    };
    Set.prototype.clear = function clear () {
      this.set = Object.create(null);
    };

    return Set;
  }());
}

var perf;

{
  perf = inBrowser && window.performance;
  if (perf && (!perf.mark || !perf.measure)) {
    perf = undefined;
  }
}

/*  */

var emptyObject = Object.freeze({});

/**
 * Check if a string starts with $ or _
 */
function isReserved (str) {
  var c = (str + '').charCodeAt(0);
  return c === 0x24 || c === 0x5F
}

/**
 * Define a property.
 */
function def (obj, key, val, enumerable) {
  Object.defineProperty(obj, key, {
    value: val,
    enumerable: !!enumerable,
    writable: true,
    configurable: true
  });
}

/**
 * Parse simple path.
 */
var bailRE = /[^\w.$]/;
function parsePath (path) {
  if (bailRE.test(path)) {
    return
  } else {
    var segments = path.split('.');
    return function (obj) {
      for (var i = 0; i < segments.length; i++) {
        if (!obj) { return }
        obj = obj[segments[i]];
      }
      return obj
    }
  }
}

var warn = noop;
var tip = noop;
var formatComponentName;

{
  var hasConsole = typeof console !== 'undefined';
  var classifyRE = /(?:^|[-_])(\w)/g;
  var classify = function (str) { return str
    .replace(classifyRE, function (c) { return c.toUpperCase(); })
    .replace(/[-_]/g, ''); };

  warn = function (msg, vm) {
    if (hasConsole && (!config.silent)) {
      console.error("[Vue warn]: " + msg + " " + (
        vm ? formatLocation(formatComponentName(vm)) : ''
      ));
    }
  };

  tip = function (msg, vm) {
    if (hasConsole && (!config.silent)) {
      console.warn("[Vue tip]: " + msg + " " + (
        vm ? formatLocation(formatComponentName(vm)) : ''
      ));
    }
  };

  formatComponentName = function (vm, includeFile) {
    if (vm.$root === vm) {
      return '<Root>'
    }
    var name = vm._isVue
      ? vm.$options.name || vm.$options._componentTag
      : vm.name;

    var file = vm._isVue && vm.$options.__file;
    if (!name && file) {
      var match = file.match(/([^/\\]+)\.vue$/);
      name = match && match[1];
    }

    return (
      (name ? ("<" + (classify(name)) + ">") : "<Anonymous>") +
      (file && includeFile !== false ? (" at " + file) : '')
    )
  };

  var formatLocation = function (str) {
    if (str === "<Anonymous>") {
      str += " - use the \"name\" option for better debugging messages.";
    }
    return ("\n(found in " + str + ")")
  };
}

/*  */


var uid$1 = 0;

/**
 * A dep is an observable that can have multiple
 * directives subscribing to it.
 */
var Dep = function Dep () {
  this.id = uid$1++;
  this.subs = [];
};

Dep.prototype.addSub = function addSub (sub) {
  this.subs.push(sub);
};

Dep.prototype.removeSub = function removeSub (sub) {
  remove(this.subs, sub);
};

Dep.prototype.depend = function depend () {
  if (Dep.target) {
    Dep.target.addDep(this);
  }
};

Dep.prototype.notify = function notify () {
  // stablize the subscriber list first
  var subs = this.subs.slice();
  for (var i = 0, l = subs.length; i < l; i++) {
    subs[i].update();
  }
};

// the current target watcher being evaluated.
// this is globally unique because there could be only one
// watcher being evaluated at any time.
Dep.target = null;
var targetStack = [];

function pushTarget (_target) {
  if (Dep.target) { targetStack.push(Dep.target); }
  Dep.target = _target;
}

function popTarget () {
  Dep.target = targetStack.pop();
}

/*
 * not type checking this file because flow doesn't play well with
 * dynamically accessing methods on Array prototype
 */

var arrayProto = Array.prototype;
var arrayMethods = Object.create(arrayProto);[
  'push',
  'pop',
  'shift',
  'unshift',
  'splice',
  'sort',
  'reverse'
]
.forEach(function (method) {
  // cache original method
  var original = arrayProto[method];
  def(arrayMethods, method, function mutator () {
    var arguments$1 = arguments;

    // avoid leaking arguments:
    // http://jsperf.com/closure-with-arguments
    var i = arguments.length;
    var args = new Array(i);
    while (i--) {
      args[i] = arguments$1[i];
    }
    var result = original.apply(this, args);
    var ob = this.__ob__;
    var inserted;
    switch (method) {
      case 'push':
        inserted = args;
        break
      case 'unshift':
        inserted = args;
        break
      case 'splice':
        inserted = args.slice(2);
        break
    }
    if (inserted) { ob.observeArray(inserted); }
    // notify change
    ob.dep.notify();
    return result
  });
});

/*  */

var arrayKeys = Object.getOwnPropertyNames(arrayMethods);

/**
 * By default, when a reactive property is set, the new value is
 * also converted to become reactive. However when passing down props,
 * we don't want to force conversion because the value may be a nested value
 * under a frozen data structure. Converting it would defeat the optimization.
 */
var observerState = {
  shouldConvert: true,
  isSettingProps: false
};

/**
 * Observer class that are attached to each observed
 * object. Once attached, the observer converts target
 * object's property keys into getter/setters that
 * collect dependencies and dispatches updates.
 */
var Observer = function Observer (value) {
  this.value = value;
  this.dep = new Dep();
  this.vmCount = 0;
  def(value, '__ob__', this);
  if (Array.isArray(value)) {
    var augment = hasProto
      ? protoAugment
      : copyAugment;
    augment(value, arrayMethods, arrayKeys);
    this.observeArray(value);
  } else {
    this.walk(value);
  }
};

/**
 * Walk through each property and convert them into
 * getter/setters. This method should only be called when
 * value type is Object.
 */
Observer.prototype.walk = function walk (obj) {
  var keys = Object.keys(obj);
  for (var i = 0; i < keys.length; i++) {
    defineReactive$$1(obj, keys[i], obj[keys[i]]);
  }
};

/**
 * Observe a list of Array items.
 */
Observer.prototype.observeArray = function observeArray (items) {
  for (var i = 0, l = items.length; i < l; i++) {
    observe(items[i]);
  }
};

// helpers

/**
 * Augment an target Object or Array by intercepting
 * the prototype chain using __proto__
 */
function protoAugment (target, src) {
  /* eslint-disable no-proto */
  target.__proto__ = src;
  /* eslint-enable no-proto */
}

/**
 * Augment an target Object or Array by defining
 * hidden properties.
 */
/* istanbul ignore next */
function copyAugment (target, src, keys) {
  for (var i = 0, l = keys.length; i < l; i++) {
    var key = keys[i];
    def(target, key, src[key]);
  }
}

/**
 * Attempt to create an observer instance for a value,
 * returns the new observer if successfully observed,
 * or the existing observer if the value already has one.
 */
function observe (value, asRootData) {
  if (!isObject(value)) {
    return
  }
  var ob;
  if (hasOwn(value, '__ob__') && value.__ob__ instanceof Observer) {
    ob = value.__ob__;
  } else if (
    observerState.shouldConvert &&
    !isServerRendering() &&
    (Array.isArray(value) || isPlainObject(value)) &&
    Object.isExtensible(value) &&
    !value._isVue
  ) {
    ob = new Observer(value);
  }
  if (asRootData && ob) {
    ob.vmCount++;
  }
  return ob
}

/**
 * Define a reactive property on an Object.
 */
function defineReactive$$1 (
  obj,
  key,
  val,
  customSetter
) {
  var dep = new Dep();

  var property = Object.getOwnPropertyDescriptor(obj, key);
  if (property && property.configurable === false) {
    return
  }

  // cater for pre-defined getter/setters
  var getter = property && property.get;
  var setter = property && property.set;

  var childOb = observe(val);
  Object.defineProperty(obj, key, {
    enumerable: true,
    configurable: true,
    get: function reactiveGetter () {
      var value = getter ? getter.call(obj) : val;
      if (Dep.target) {
        dep.depend();
        if (childOb) {
          childOb.dep.depend();
        }
        if (Array.isArray(value)) {
          dependArray(value);
        }
      }
      return value
    },
    set: function reactiveSetter (newVal) {
      var value = getter ? getter.call(obj) : val;
      /* eslint-disable no-self-compare */
      if (newVal === value || (newVal !== newVal && value !== value)) {
        return
      }
      /* eslint-enable no-self-compare */
      if ("development" !== 'production' && customSetter) {
        customSetter();
      }
      if (setter) {
        setter.call(obj, newVal);
      } else {
        val = newVal;
      }
      childOb = observe(newVal);
      dep.notify();
    }
  });
}

/**
 * Set a property on an object. Adds the new property and
 * triggers change notification if the property doesn't
 * already exist.
 */
function set (obj, key, val) {
  if (Array.isArray(obj)) {
    obj.length = Math.max(obj.length, key);
    obj.splice(key, 1, val);
    return val
  }
  if (hasOwn(obj, key)) {
    obj[key] = val;
    return
  }
  var ob = obj.__ob__;
  if (obj._isVue || (ob && ob.vmCount)) {
    "development" !== 'production' && warn(
      'Avoid adding reactive properties to a Vue instance or its root $data ' +
      'at runtime - declare it upfront in the data option.'
    );
    return
  }
  if (!ob) {
    obj[key] = val;
    return
  }
  defineReactive$$1(ob.value, key, val);
  ob.dep.notify();
  return val
}

/**
 * Delete a property and trigger change if necessary.
 */
function del (obj, key) {
  if (Array.isArray(obj)) {
    obj.splice(key, 1);
    return
  }
  var ob = obj.__ob__;
  if (obj._isVue || (ob && ob.vmCount)) {
    "development" !== 'production' && warn(
      'Avoid deleting properties on a Vue instance or its root $data ' +
      '- just set it to null.'
    );
    return
  }
  if (!hasOwn(obj, key)) {
    return
  }
  delete obj[key];
  if (!ob) {
    return
  }
  ob.dep.notify();
}

/**
 * Collect dependencies on array elements when the array is touched, since
 * we cannot intercept array element access like property getters.
 */
function dependArray (value) {
  for (var e = (void 0), i = 0, l = value.length; i < l; i++) {
    e = value[i];
    e && e.__ob__ && e.__ob__.dep.depend();
    if (Array.isArray(e)) {
      dependArray(e);
    }
  }
}

/*  */

/**
 * Option overwriting strategies are functions that handle
 * how to merge a parent option value and a child option
 * value into the final value.
 */
var strats = config.optionMergeStrategies;

/**
 * Options with restrictions
 */
{
  strats.el = strats.propsData = function (parent, child, vm, key) {
    if (!vm) {
      warn(
        "option \"" + key + "\" can only be used during instance " +
        'creation with the `new` keyword.'
      );
    }
    return defaultStrat(parent, child)
  };
}

/**
 * Helper that recursively merges two data objects together.
 */
function mergeData (to, from) {
  if (!from) { return to }
  var key, toVal, fromVal;
  var keys = Object.keys(from);
  for (var i = 0; i < keys.length; i++) {
    key = keys[i];
    toVal = to[key];
    fromVal = from[key];
    if (!hasOwn(to, key)) {
      set(to, key, fromVal);
    } else if (isPlainObject(toVal) && isPlainObject(fromVal)) {
      mergeData(toVal, fromVal);
    }
  }
  return to
}

/**
 * Data
 */
strats.data = function (
  parentVal,
  childVal,
  vm
) {
  if (!vm) {
    // in a Vue.extend merge, both should be functions
    if (!childVal) {
      return parentVal
    }
    if (typeof childVal !== 'function') {
      "development" !== 'production' && warn(
        'The "data" option should be a function ' +
        'that returns a per-instance value in component ' +
        'definitions.',
        vm
      );
      return parentVal
    }
    if (!parentVal) {
      return childVal
    }
    // when parentVal & childVal are both present,
    // we need to return a function that returns the
    // merged result of both functions... no need to
    // check if parentVal is a function here because
    // it has to be a function to pass previous merges.
    return function mergedDataFn () {
      return mergeData(
        childVal.call(this),
        parentVal.call(this)
      )
    }
  } else if (parentVal || childVal) {
    return function mergedInstanceDataFn () {
      // instance merge
      var instanceData = typeof childVal === 'function'
        ? childVal.call(vm)
        : childVal;
      var defaultData = typeof parentVal === 'function'
        ? parentVal.call(vm)
        : undefined;
      if (instanceData) {
        return mergeData(instanceData, defaultData)
      } else {
        return defaultData
      }
    }
  }
};

/**
 * Hooks and props are merged as arrays.
 */
function mergeHook (
  parentVal,
  childVal
) {
  return childVal
    ? parentVal
      ? parentVal.concat(childVal)
      : Array.isArray(childVal)
        ? childVal
        : [childVal]
    : parentVal
}

config._lifecycleHooks.forEach(function (hook) {
  strats[hook] = mergeHook;
});

/**
 * Assets
 *
 * When a vm is present (instance creation), we need to do
 * a three-way merge between constructor options, instance
 * options and parent options.
 */
function mergeAssets (parentVal, childVal) {
  var res = Object.create(parentVal || null);
  return childVal
    ? extend(res, childVal)
    : res
}

config._assetTypes.forEach(function (type) {
  strats[type + 's'] = mergeAssets;
});

/**
 * Watchers.
 *
 * Watchers hashes should not overwrite one
 * another, so we merge them as arrays.
 */
strats.watch = function (parentVal, childVal) {
  /* istanbul ignore if */
  if (!childVal) { return Object.create(parentVal || null) }
  if (!parentVal) { return childVal }
  var ret = {};
  extend(ret, parentVal);
  for (var key in childVal) {
    var parent = ret[key];
    var child = childVal[key];
    if (parent && !Array.isArray(parent)) {
      parent = [parent];
    }
    ret[key] = parent
      ? parent.concat(child)
      : [child];
  }
  return ret
};

/**
 * Other object hashes.
 */
strats.props =
strats.methods =
strats.computed = function (parentVal, childVal) {
  if (!childVal) { return Object.create(parentVal || null) }
  if (!parentVal) { return childVal }
  var ret = Object.create(null);
  extend(ret, parentVal);
  extend(ret, childVal);
  return ret
};

/**
 * Default strategy.
 */
var defaultStrat = function (parentVal, childVal) {
  return childVal === undefined
    ? parentVal
    : childVal
};

/**
 * Validate component names
 */
function checkComponents (options) {
  for (var key in options.components) {
    var lower = key.toLowerCase();
    if (isBuiltInTag(lower) || config.isReservedTag(lower)) {
      warn(
        'Do not use built-in or reserved HTML elements as component ' +
        'id: ' + key
      );
    }
  }
}

/**
 * Ensure all props option syntax are normalized into the
 * Object-based format.
 */
function normalizeProps (options) {
  var props = options.props;
  if (!props) { return }
  var res = {};
  var i, val, name;
  if (Array.isArray(props)) {
    i = props.length;
    while (i--) {
      val = props[i];
      if (typeof val === 'string') {
        name = camelize(val);
        res[name] = { type: null };
      } else {
        warn('props must be strings when using array syntax.');
      }
    }
  } else if (isPlainObject(props)) {
    for (var key in props) {
      val = props[key];
      name = camelize(key);
      res[name] = isPlainObject(val)
        ? val
        : { type: val };
    }
  }
  options.props = res;
}

/**
 * Normalize raw function directives into object format.
 */
function normalizeDirectives (options) {
  var dirs = options.directives;
  if (dirs) {
    for (var key in dirs) {
      var def = dirs[key];
      if (typeof def === 'function') {
        dirs[key] = { bind: def, update: def };
      }
    }
  }
}

/**
 * Merge two option objects into a new one.
 * Core utility used in both instantiation and inheritance.
 */
function mergeOptions (
  parent,
  child,
  vm
) {
  {
    checkComponents(child);
  }
  normalizeProps(child);
  normalizeDirectives(child);
  var extendsFrom = child.extends;
  if (extendsFrom) {
    parent = typeof extendsFrom === 'function'
      ? mergeOptions(parent, extendsFrom.options, vm)
      : mergeOptions(parent, extendsFrom, vm);
  }
  if (child.mixins) {
    for (var i = 0, l = child.mixins.length; i < l; i++) {
      var mixin = child.mixins[i];
      if (mixin.prototype instanceof Vue$3) {
        mixin = mixin.options;
      }
      parent = mergeOptions(parent, mixin, vm);
    }
  }
  var options = {};
  var key;
  for (key in parent) {
    mergeField(key);
  }
  for (key in child) {
    if (!hasOwn(parent, key)) {
      mergeField(key);
    }
  }
  function mergeField (key) {
    var strat = strats[key] || defaultStrat;
    options[key] = strat(parent[key], child[key], vm, key);
  }
  return options
}

/**
 * Resolve an asset.
 * This function is used because child instances need access
 * to assets defined in its ancestor chain.
 */
function resolveAsset (
  options,
  type,
  id,
  warnMissing
) {
  /* istanbul ignore if */
  if (typeof id !== 'string') {
    return
  }
  var assets = options[type];
  // check local registration variations first
  if (hasOwn(assets, id)) { return assets[id] }
  var camelizedId = camelize(id);
  if (hasOwn(assets, camelizedId)) { return assets[camelizedId] }
  var PascalCaseId = capitalize(camelizedId);
  if (hasOwn(assets, PascalCaseId)) { return assets[PascalCaseId] }
  // fallback to prototype chain
  var res = assets[id] || assets[camelizedId] || assets[PascalCaseId];
  if ("development" !== 'production' && warnMissing && !res) {
    warn(
      'Failed to resolve ' + type.slice(0, -1) + ': ' + id,
      options
    );
  }
  return res
}

/*  */

function validateProp (
  key,
  propOptions,
  propsData,
  vm
) {
  var prop = propOptions[key];
  var absent = !hasOwn(propsData, key);
  var value = propsData[key];
  // handle boolean props
  if (isType(Boolean, prop.type)) {
    if (absent && !hasOwn(prop, 'default')) {
      value = false;
    } else if (!isType(String, prop.type) && (value === '' || value === hyphenate(key))) {
      value = true;
    }
  }
  // check default value
  if (value === undefined) {
    value = getPropDefaultValue(vm, prop, key);
    // since the default value is a fresh copy,
    // make sure to observe it.
    var prevShouldConvert = observerState.shouldConvert;
    observerState.shouldConvert = true;
    observe(value);
    observerState.shouldConvert = prevShouldConvert;
  }
  {
    assertProp(prop, key, value, vm, absent);
  }
  return value
}

/**
 * Get the default value of a prop.
 */
function getPropDefaultValue (vm, prop, key) {
  // no default, return undefined
  if (!hasOwn(prop, 'default')) {
    return undefined
  }
  var def = prop.default;
  // warn against non-factory defaults for Object & Array
  if ("development" !== 'production' && isObject(def)) {
    warn(
      'Invalid default value for prop "' + key + '": ' +
      'Props with type Object/Array must use a factory function ' +
      'to return the default value.',
      vm
    );
  }
  // the raw prop value was also undefined from previous render,
  // return previous default value to avoid unnecessary watcher trigger
  if (vm && vm.$options.propsData &&
    vm.$options.propsData[key] === undefined &&
    vm._props[key] !== undefined) {
    return vm._props[key]
  }
  // call factory function for non-Function types
  // a value is Function if its prototype is function even across different execution context
  return typeof def === 'function' && getType(prop.type) !== 'Function'
    ? def.call(vm)
    : def
}

/**
 * Assert whether a prop is valid.
 */
function assertProp (
  prop,
  name,
  value,
  vm,
  absent
) {
  if (prop.required && absent) {
    warn(
      'Missing required prop: "' + name + '"',
      vm
    );
    return
  }
  if (value == null && !prop.required) {
    return
  }
  var type = prop.type;
  var valid = !type || type === true;
  var expectedTypes = [];
  if (type) {
    if (!Array.isArray(type)) {
      type = [type];
    }
    for (var i = 0; i < type.length && !valid; i++) {
      var assertedType = assertType(value, type[i]);
      expectedTypes.push(assertedType.expectedType || '');
      valid = assertedType.valid;
    }
  }
  if (!valid) {
    warn(
      'Invalid prop: type check failed for prop "' + name + '".' +
      ' Expected ' + expectedTypes.map(capitalize).join(', ') +
      ', got ' + Object.prototype.toString.call(value).slice(8, -1) + '.',
      vm
    );
    return
  }
  var validator = prop.validator;
  if (validator) {
    if (!validator(value)) {
      warn(
        'Invalid prop: custom validator check failed for prop "' + name + '".',
        vm
      );
    }
  }
}

/**
 * Assert the type of a value
 */
function assertType (value, type) {
  var valid;
  var expectedType = getType(type);
  if (expectedType === 'String') {
    valid = typeof value === (expectedType = 'string');
  } else if (expectedType === 'Number') {
    valid = typeof value === (expectedType = 'number');
  } else if (expectedType === 'Boolean') {
    valid = typeof value === (expectedType = 'boolean');
  } else if (expectedType === 'Function') {
    valid = typeof value === (expectedType = 'function');
  } else if (expectedType === 'Object') {
    valid = isPlainObject(value);
  } else if (expectedType === 'Array') {
    valid = Array.isArray(value);
  } else {
    valid = value instanceof type;
  }
  return {
    valid: valid,
    expectedType: expectedType
  }
}

/**
 * Use function string name to check built-in types,
 * because a simple equality check will fail when running
 * across different vms / iframes.
 */
function getType (fn) {
  var match = fn && fn.toString().match(/^\s*function (\w+)/);
  return match && match[1]
}

function isType (type, fn) {
  if (!Array.isArray(fn)) {
    return getType(fn) === getType(type)
  }
  for (var i = 0, len = fn.length; i < len; i++) {
    if (getType(fn[i]) === getType(type)) {
      return true
    }
  }
  /* istanbul ignore next */
  return false
}

function handleError (err, vm, type) {
  if (config.errorHandler) {
    config.errorHandler.call(null, err, vm, type);
  } else {
    {
      warn(("Error in " + type + ":"), vm);
    }
    /* istanbul ignore else */
    if (inBrowser && typeof console !== 'undefined') {
      console.error(err);
    } else {
      throw err
    }
  }
}

/* not type checking this file because flow doesn't play well with Proxy */

var initProxy;

{
  var allowedGlobals = makeMap(
    'Infinity,undefined,NaN,isFinite,isNaN,' +
    'parseFloat,parseInt,decodeURI,decodeURIComponent,encodeURI,encodeURIComponent,' +
    'Math,Number,Date,Array,Object,Boolean,String,RegExp,Map,Set,JSON,Intl,' +
    'require' // for Webpack/Browserify
  );

  var warnNonPresent = function (target, key) {
    warn(
      "Property or method \"" + key + "\" is not defined on the instance but " +
      "referenced during render. Make sure to declare reactive data " +
      "properties in the data option.",
      target
    );
  };

  var hasProxy =
    typeof Proxy !== 'undefined' &&
    Proxy.toString().match(/native code/);

  if (hasProxy) {
    var isBuiltInModifier = makeMap('stop,prevent,self,ctrl,shift,alt,meta');
    config.keyCodes = new Proxy(config.keyCodes, {
      set: function set (target, key, value) {
        if (isBuiltInModifier(key)) {
          warn(("Avoid overwriting built-in modifier in config.keyCodes: ." + key));
          return false
        } else {
          target[key] = value;
          return true
        }
      }
    });
  }

  var hasHandler = {
    has: function has (target, key) {
      var has = key in target;
      var isAllowed = allowedGlobals(key) || key.charAt(0) === '_';
      if (!has && !isAllowed) {
        warnNonPresent(target, key);
      }
      return has || !isAllowed
    }
  };

  var getHandler = {
    get: function get (target, key) {
      if (typeof key === 'string' && !(key in target)) {
        warnNonPresent(target, key);
      }
      return target[key]
    }
  };

  initProxy = function initProxy (vm) {
    if (hasProxy) {
      // determine which proxy handler to use
      var options = vm.$options;
      var handlers = options.render && options.render._withStripped
        ? getHandler
        : hasHandler;
      vm._renderProxy = new Proxy(vm, handlers);
    } else {
      vm._renderProxy = vm;
    }
  };
}

/*  */

var VNode = function VNode (
  tag,
  data,
  children,
  text,
  elm,
  context,
  componentOptions
) {
  this.tag = tag;
  this.data = data;
  this.children = children;
  this.text = text;
  this.elm = elm;
  this.ns = undefined;
  this.context = context;
  this.functionalContext = undefined;
  this.key = data && data.key;
  this.componentOptions = componentOptions;
  this.componentInstance = undefined;
  this.parent = undefined;
  this.raw = false;
  this.isStatic = false;
  this.isRootInsert = true;
  this.isComment = false;
  this.isCloned = false;
  this.isOnce = false;
};

var prototypeAccessors = { child: {} };

// DEPRECATED: alias for componentInstance for backwards compat.
/* istanbul ignore next */
prototypeAccessors.child.get = function () {
  return this.componentInstance
};

Object.defineProperties( VNode.prototype, prototypeAccessors );

var createEmptyVNode = function () {
  var node = new VNode();
  node.text = '';
  node.isComment = true;
  return node
};

function createTextVNode (val) {
  return new VNode(undefined, undefined, undefined, String(val))
}

// optimized shallow clone
// used for static nodes and slot nodes because they may be reused across
// multiple renders, cloning them avoids errors when DOM manipulations rely
// on their elm reference.
function cloneVNode (vnode) {
  var cloned = new VNode(
    vnode.tag,
    vnode.data,
    vnode.children,
    vnode.text,
    vnode.elm,
    vnode.context,
    vnode.componentOptions
  );
  cloned.ns = vnode.ns;
  cloned.isStatic = vnode.isStatic;
  cloned.key = vnode.key;
  cloned.isCloned = true;
  return cloned
}

function cloneVNodes (vnodes) {
  var res = new Array(vnodes.length);
  for (var i = 0; i < vnodes.length; i++) {
    res[i] = cloneVNode(vnodes[i]);
  }
  return res
}

/*  */

var normalizeEvent = cached(function (name) {
  var once$$1 = name.charAt(0) === '~'; // Prefixed last, checked first
  name = once$$1 ? name.slice(1) : name;
  var capture = name.charAt(0) === '!';
  name = capture ? name.slice(1) : name;
  return {
    name: name,
    once: once$$1,
    capture: capture
  }
});

function createFnInvoker (fns) {
  function invoker () {
    var arguments$1 = arguments;

    var fns = invoker.fns;
    if (Array.isArray(fns)) {
      for (var i = 0; i < fns.length; i++) {
        fns[i].apply(null, arguments$1);
      }
    } else {
      // return handler return value for single handlers
      return fns.apply(null, arguments)
    }
  }
  invoker.fns = fns;
  return invoker
}

function updateListeners (
  on,
  oldOn,
  add,
  remove$$1,
  vm
) {
  var name, cur, old, event;
  for (name in on) {
    cur = on[name];
    old = oldOn[name];
    event = normalizeEvent(name);
    if (!cur) {
      "development" !== 'production' && warn(
        "Invalid handler for event \"" + (event.name) + "\": got " + String(cur),
        vm
      );
    } else if (!old) {
      if (!cur.fns) {
        cur = on[name] = createFnInvoker(cur);
      }
      add(event.name, cur, event.once, event.capture);
    } else if (cur !== old) {
      old.fns = cur;
      on[name] = old;
    }
  }
  for (name in oldOn) {
    if (!on[name]) {
      event = normalizeEvent(name);
      remove$$1(event.name, oldOn[name], event.capture);
    }
  }
}

/*  */

function mergeVNodeHook (def, hookKey, hook) {
  var invoker;
  var oldHook = def[hookKey];

  function wrappedHook () {
    hook.apply(this, arguments);
    // important: remove merged hook to ensure it's called only once
    // and prevent memory leak
    remove(invoker.fns, wrappedHook);
  }

  if (!oldHook) {
    // no existing hook
    invoker = createFnInvoker([wrappedHook]);
  } else {
    /* istanbul ignore if */
    if (oldHook.fns && oldHook.merged) {
      // already a merged invoker
      invoker = oldHook;
      invoker.fns.push(wrappedHook);
    } else {
      // existing plain hook
      invoker = createFnInvoker([oldHook, wrappedHook]);
    }
  }

  invoker.merged = true;
  def[hookKey] = invoker;
}

/*  */

// The template compiler attempts to minimize the need for normalization by
// statically analyzing the template at compile time.
//
// For plain HTML markup, normalization can be completely skipped because the
// generated render function is guaranteed to return Array<VNode>. There are
// two cases where extra normalization is needed:

// 1. When the children contains components - because a functional component
// may return an Array instead of a single root. In this case, just a simple
// normalization is needed - if any child is an Array, we flatten the whole
// thing with Array.prototype.concat. It is guaranteed to be only 1-level deep
// because functional components already normalize their own children.
function simpleNormalizeChildren (children) {
  for (var i = 0; i < children.length; i++) {
    if (Array.isArray(children[i])) {
      return Array.prototype.concat.apply([], children)
    }
  }
  return children
}

// 2. When the children contains constrcuts that always generated nested Arrays,
// e.g. <template>, <slot>, v-for, or when the children is provided by user
// with hand-written render functions / JSX. In such cases a full normalization
// is needed to cater to all possible types of children values.
function normalizeChildren (children) {
  return isPrimitive(children)
    ? [createTextVNode(children)]
    : Array.isArray(children)
      ? normalizeArrayChildren(children)
      : undefined
}

function normalizeArrayChildren (children, nestedIndex) {
  var res = [];
  var i, c, last;
  for (i = 0; i < children.length; i++) {
    c = children[i];
    if (c == null || typeof c === 'boolean') { continue }
    last = res[res.length - 1];
    //  nested
    if (Array.isArray(c)) {
      res.push.apply(res, normalizeArrayChildren(c, ((nestedIndex || '') + "_" + i)));
    } else if (isPrimitive(c)) {
      if (last && last.text) {
        last.text += String(c);
      } else if (c !== '') {
        // convert primitive to vnode
        res.push(createTextVNode(c));
      }
    } else {
      if (c.text && last && last.text) {
        res[res.length - 1] = createTextVNode(last.text + c.text);
      } else {
        // default key for nested array children (likely generated by v-for)
        if (c.tag && c.key == null && nestedIndex != null) {
          c.key = "__vlist" + nestedIndex + "_" + i + "__";
        }
        res.push(c);
      }
    }
  }
  return res
}

/*  */

function getFirstComponentChild (children) {
  return children && children.filter(function (c) { return c && c.componentOptions; })[0]
}

/*  */

function initEvents (vm) {
  vm._events = Object.create(null);
  vm._hasHookEvent = false;
  // init parent attached events
  var listeners = vm.$options._parentListeners;
  if (listeners) {
    updateComponentListeners(vm, listeners);
  }
}

var target;

function add (event, fn, once$$1) {
  if (once$$1) {
    target.$once(event, fn);
  } else {
    target.$on(event, fn);
  }
}

function remove$1 (event, fn) {
  target.$off(event, fn);
}

function updateComponentListeners (
  vm,
  listeners,
  oldListeners
) {
  target = vm;
  updateListeners(listeners, oldListeners || {}, add, remove$1, vm);
}

function eventsMixin (Vue) {
  var hookRE = /^hook:/;
  Vue.prototype.$on = function (event, fn) {
    var this$1 = this;

    var vm = this;
    if (Array.isArray(event)) {
      for (var i = 0, l = event.length; i < l; i++) {
        this$1.$on(event[i], fn);
      }
    } else {
      (vm._events[event] || (vm._events[event] = [])).push(fn);
      // optimize hook:event cost by using a boolean flag marked at registration
      // instead of a hash lookup
      if (hookRE.test(event)) {
        vm._hasHookEvent = true;
      }
    }
    return vm
  };

  Vue.prototype.$once = function (event, fn) {
    var vm = this;
    function on () {
      vm.$off(event, on);
      fn.apply(vm, arguments);
    }
    on.fn = fn;
    vm.$on(event, on);
    return vm
  };

  Vue.prototype.$off = function (event, fn) {
    var vm = this;
    // all
    if (!arguments.length) {
      vm._events = Object.create(null);
      return vm
    }
    // specific event
    var cbs = vm._events[event];
    if (!cbs) {
      return vm
    }
    if (arguments.length === 1) {
      vm._events[event] = null;
      return vm
    }
    // specific handler
    var cb;
    var i = cbs.length;
    while (i--) {
      cb = cbs[i];
      if (cb === fn || cb.fn === fn) {
        cbs.splice(i, 1);
        break
      }
    }
    return vm
  };

  Vue.prototype.$emit = function (event) {
    var vm = this;
    var cbs = vm._events[event];
    if (cbs) {
      cbs = cbs.length > 1 ? toArray(cbs) : cbs;
      var args = toArray(arguments, 1);
      for (var i = 0, l = cbs.length; i < l; i++) {
        cbs[i].apply(vm, args);
      }
    }
    return vm
  };
}

/*  */

/**
 * Runtime helper for resolving raw children VNodes into a slot object.
 */
function resolveSlots (
  children,
  context
) {
  var slots = {};
  if (!children) {
    return slots
  }
  var defaultSlot = [];
  var name, child;
  for (var i = 0, l = children.length; i < l; i++) {
    child = children[i];
    // named slots should only be respected if the vnode was rendered in the
    // same context.
    if ((child.context === context || child.functionalContext === context) &&
        child.data && (name = child.data.slot)) {
      var slot = (slots[name] || (slots[name] = []));
      if (child.tag === 'template') {
        slot.push.apply(slot, child.children);
      } else {
        slot.push(child);
      }
    } else {
      defaultSlot.push(child);
    }
  }
  // ignore single whitespace
  if (defaultSlot.length && !(
    defaultSlot.length === 1 &&
    (defaultSlot[0].text === ' ' || defaultSlot[0].isComment)
  )) {
    slots.default = defaultSlot;
  }
  return slots
}

function resolveScopedSlots (
  fns
) {
  var res = {};
  for (var i = 0; i < fns.length; i++) {
    res[fns[i][0]] = fns[i][1];
  }
  return res
}

/*  */

var activeInstance = null;

function initLifecycle (vm) {
  var options = vm.$options;

  // locate first non-abstract parent
  var parent = options.parent;
  if (parent && !options.abstract) {
    while (parent.$options.abstract && parent.$parent) {
      parent = parent.$parent;
    }
    parent.$children.push(vm);
  }

  vm.$parent = parent;
  vm.$root = parent ? parent.$root : vm;

  vm.$children = [];
  vm.$refs = {};

  vm._watcher = null;
  vm._inactive = null;
  vm._directInactive = false;
  vm._isMounted = false;
  vm._isDestroyed = false;
  vm._isBeingDestroyed = false;
}

function lifecycleMixin (Vue) {
  Vue.prototype._update = function (vnode, hydrating) {
    var vm = this;
    if (vm._isMounted) {
      callHook(vm, 'beforeUpdate');
    }
    var prevEl = vm.$el;
    var prevVnode = vm._vnode;
    var prevActiveInstance = activeInstance;
    activeInstance = vm;
    vm._vnode = vnode;
    // Vue.prototype.__patch__ is injected in entry points
    // based on the rendering backend used.
    if (!prevVnode) {
      // initial render
      vm.$el = vm.__patch__(
        vm.$el, vnode, hydrating, false /* removeOnly */,
        vm.$options._parentElm,
        vm.$options._refElm
      );
    } else {
      // updates
      vm.$el = vm.__patch__(prevVnode, vnode);
    }
    activeInstance = prevActiveInstance;
    // update __vue__ reference
    if (prevEl) {
      prevEl.__vue__ = null;
    }
    if (vm.$el) {
      vm.$el.__vue__ = vm;
    }
    // if parent is an HOC, update its $el as well
    if (vm.$vnode && vm.$parent && vm.$vnode === vm.$parent._vnode) {
      vm.$parent.$el = vm.$el;
    }
    // updated hook is called by the scheduler to ensure that children are
    // updated in a parent's updated hook.
  };

  Vue.prototype.$forceUpdate = function () {
    var vm = this;
    if (vm._watcher) {
      vm._watcher.update();
    }
  };

  Vue.prototype.$destroy = function () {
    var vm = this;
    if (vm._isBeingDestroyed) {
      return
    }
    callHook(vm, 'beforeDestroy');
    vm._isBeingDestroyed = true;
    // remove self from parent
    var parent = vm.$parent;
    if (parent && !parent._isBeingDestroyed && !vm.$options.abstract) {
      remove(parent.$children, vm);
    }
    // teardown watchers
    if (vm._watcher) {
      vm._watcher.teardown();
    }
    var i = vm._watchers.length;
    while (i--) {
      vm._watchers[i].teardown();
    }
    // remove reference from data ob
    // frozen object may not have observer.
    if (vm._data.__ob__) {
      vm._data.__ob__.vmCount--;
    }
    // call the last hook...
    vm._isDestroyed = true;
    callHook(vm, 'destroyed');
    // turn off all instance listeners.
    vm.$off();
    // remove __vue__ reference
    if (vm.$el) {
      vm.$el.__vue__ = null;
    }
    // invoke destroy hooks on current rendered tree
    vm.__patch__(vm._vnode, null);
  };
}

function mountComponent (
  vm,
  el,
  hydrating
) {
  vm.$el = el;
  if (!vm.$options.render) {
    vm.$options.render = createEmptyVNode;
    {
      /* istanbul ignore if */
      if (vm.$options.template && vm.$options.template.charAt(0) !== '#') {
        warn(
          'You are using the runtime-only build of Vue where the template ' +
          'option is not available. Either pre-compile the templates into ' +
          'render functions, or use the compiler-included build.',
          vm
        );
      } else {
        warn(
          'Failed to mount component: template or render function not defined.',
          vm
        );
      }
    }
  }
  callHook(vm, 'beforeMount');

  var updateComponent;
  /* istanbul ignore if */
  if ("development" !== 'production' && config.performance && perf) {
    updateComponent = function () {
      var name = vm._name;
      var startTag = "start " + name;
      var endTag = "end " + name;
      perf.mark(startTag);
      var vnode = vm._render();
      perf.mark(endTag);
      perf.measure((name + " render"), startTag, endTag);
      perf.mark(startTag);
      vm._update(vnode, hydrating);
      perf.mark(endTag);
      perf.measure((name + " patch"), startTag, endTag);
    };
  } else {
    updateComponent = function () {
      vm._update(vm._render(), hydrating);
    };
  }

  vm._watcher = new Watcher(vm, updateComponent, noop);
  hydrating = false;

  // manually mounted instance, call mounted on self
  // mounted is called for render-created child components in its inserted hook
  if (vm.$vnode == null) {
    vm._isMounted = true;
    callHook(vm, 'mounted');
  }
  return vm
}

function updateChildComponent (
  vm,
  propsData,
  listeners,
  parentVnode,
  renderChildren
) {
  // determine whether component has slot children
  // we need to do this before overwriting $options._renderChildren
  var hasChildren = !!(
    renderChildren ||               // has new static slots
    vm.$options._renderChildren ||  // has old static slots
    parentVnode.data.scopedSlots || // has new scoped slots
    vm.$scopedSlots !== emptyObject // has old scoped slots
  );

  vm.$options._parentVnode = parentVnode;
  vm.$vnode = parentVnode; // update vm's placeholder node without re-render
  if (vm._vnode) { // update child tree's parent
    vm._vnode.parent = parentVnode;
  }
  vm.$options._renderChildren = renderChildren;

  // update props
  if (propsData && vm.$options.props) {
    observerState.shouldConvert = false;
    {
      observerState.isSettingProps = true;
    }
    var props = vm._props;
    var propKeys = vm.$options._propKeys || [];
    for (var i = 0; i < propKeys.length; i++) {
      var key = propKeys[i];
      props[key] = validateProp(key, vm.$options.props, propsData, vm);
    }
    observerState.shouldConvert = true;
    {
      observerState.isSettingProps = false;
    }
    // keep a copy of raw propsData
    vm.$options.propsData = propsData;
  }
  // update listeners
  if (listeners) {
    var oldListeners = vm.$options._parentListeners;
    vm.$options._parentListeners = listeners;
    updateComponentListeners(vm, listeners, oldListeners);
  }
  // resolve slots + force update if has children
  if (hasChildren) {
    vm.$slots = resolveSlots(renderChildren, parentVnode.context);
    vm.$forceUpdate();
  }
}

function isInInactiveTree (vm) {
  while (vm && (vm = vm.$parent)) {
    if (vm._inactive) { return true }
  }
  return false
}

function activateChildComponent (vm, direct) {
  if (direct) {
    vm._directInactive = false;
    if (isInInactiveTree(vm)) {
      return
    }
  } else if (vm._directInactive) {
    return
  }
  if (vm._inactive || vm._inactive == null) {
    vm._inactive = false;
    for (var i = 0; i < vm.$children.length; i++) {
      activateChildComponent(vm.$children[i]);
    }
    callHook(vm, 'activated');
  }
}

function deactivateChildComponent (vm, direct) {
  if (direct) {
    vm._directInactive = true;
    if (isInInactiveTree(vm)) {
      return
    }
  }
  if (!vm._inactive) {
    vm._inactive = true;
    for (var i = 0; i < vm.$children.length; i++) {
      deactivateChildComponent(vm.$children[i]);
    }
    callHook(vm, 'deactivated');
  }
}

function callHook (vm, hook) {
  var handlers = vm.$options[hook];
  if (handlers) {
    for (var i = 0, j = handlers.length; i < j; i++) {
      try {
        handlers[i].call(vm);
      } catch (e) {
        handleError(e, vm, (hook + " hook"));
      }
    }
  }
  if (vm._hasHookEvent) {
    vm.$emit('hook:' + hook);
  }
}

/*  */


var queue = [];
var has = {};
var circular = {};
var waiting = false;
var flushing = false;
var index = 0;

/**
 * Reset the scheduler's state.
 */
function resetSchedulerState () {
  queue.length = 0;
  has = {};
  {
    circular = {};
  }
  waiting = flushing = false;
}

/**
 * Flush both queues and run the watchers.
 */
function flushSchedulerQueue () {
  flushing = true;
  var watcher, id, vm;

  // Sort queue before flush.
  // This ensures that:
  // 1. Components are updated from parent to child. (because parent is always
  //    created before the child)
  // 2. A component's user watchers are run before its render watcher (because
  //    user watchers are created before the render watcher)
  // 3. If a component is destroyed during a parent component's watcher run,
  //    its watchers can be skipped.
  queue.sort(function (a, b) { return a.id - b.id; });

  // do not cache length because more watchers might be pushed
  // as we run existing watchers
  for (index = 0; index < queue.length; index++) {
    watcher = queue[index];
    id = watcher.id;
    has[id] = null;
    watcher.run();
    // in dev build, check and stop circular updates.
    if ("development" !== 'production' && has[id] != null) {
      circular[id] = (circular[id] || 0) + 1;
      if (circular[id] > config._maxUpdateCount) {
        warn(
          'You may have an infinite update loop ' + (
            watcher.user
              ? ("in watcher with expression \"" + (watcher.expression) + "\"")
              : "in a component render function."
          ),
          watcher.vm
        );
        break
      }
    }
  }

  // call updated hooks
  index = queue.length;
  while (index--) {
    watcher = queue[index];
    vm = watcher.vm;
    if (vm._watcher === watcher && vm._isMounted) {
      callHook(vm, 'updated');
    }
  }

  // devtool hook
  /* istanbul ignore if */
  if (devtools && config.devtools) {
    devtools.emit('flush');
  }

  resetSchedulerState();
}

/**
 * Push a watcher into the watcher queue.
 * Jobs with duplicate IDs will be skipped unless it's
 * pushed when the queue is being flushed.
 */
function queueWatcher (watcher) {
  var id = watcher.id;
  if (has[id] == null) {
    has[id] = true;
    if (!flushing) {
      queue.push(watcher);
    } else {
      // if already flushing, splice the watcher based on its id
      // if already past its id, it will be run next immediately.
      var i = queue.length - 1;
      while (i >= 0 && queue[i].id > watcher.id) {
        i--;
      }
      queue.splice(Math.max(i, index) + 1, 0, watcher);
    }
    // queue the flush
    if (!waiting) {
      waiting = true;
      nextTick(flushSchedulerQueue);
    }
  }
}

/*  */

var uid$2 = 0;

/**
 * A watcher parses an expression, collects dependencies,
 * and fires callback when the expression value changes.
 * This is used for both the $watch() api and directives.
 */
var Watcher = function Watcher (
  vm,
  expOrFn,
  cb,
  options
) {
  this.vm = vm;
  vm._watchers.push(this);
  // options
  if (options) {
    this.deep = !!options.deep;
    this.user = !!options.user;
    this.lazy = !!options.lazy;
    this.sync = !!options.sync;
  } else {
    this.deep = this.user = this.lazy = this.sync = false;
  }
  this.cb = cb;
  this.id = ++uid$2; // uid for batching
  this.active = true;
  this.dirty = this.lazy; // for lazy watchers
  this.deps = [];
  this.newDeps = [];
  this.depIds = new _Set();
  this.newDepIds = new _Set();
  this.expression = expOrFn.toString();
  // parse expression for getter
  if (typeof expOrFn === 'function') {
    this.getter = expOrFn;
  } else {
    this.getter = parsePath(expOrFn);
    if (!this.getter) {
      this.getter = function () {};
      "development" !== 'production' && warn(
        "Failed watching path: \"" + expOrFn + "\" " +
        'Watcher only accepts simple dot-delimited paths. ' +
        'For full control, use a function instead.',
        vm
      );
    }
  }
  this.value = this.lazy
    ? undefined
    : this.get();
};

/**
 * Evaluate the getter, and re-collect dependencies.
 */
Watcher.prototype.get = function get () {
  pushTarget(this);
  var value;
  var vm = this.vm;
  if (this.user) {
    try {
      value = this.getter.call(vm, vm);
    } catch (e) {
      handleError(e, vm, ("getter for watcher \"" + (this.expression) + "\""));
    }
  } else {
    value = this.getter.call(vm, vm);
  }
  // "touch" every property so they are all tracked as
  // dependencies for deep watching
  if (this.deep) {
    traverse(value);
  }
  popTarget();
  this.cleanupDeps();
  return value
};

/**
 * Add a dependency to this directive.
 */
Watcher.prototype.addDep = function addDep (dep) {
  var id = dep.id;
  if (!this.newDepIds.has(id)) {
    this.newDepIds.add(id);
    this.newDeps.push(dep);
    if (!this.depIds.has(id)) {
      dep.addSub(this);
    }
  }
};

/**
 * Clean up for dependency collection.
 */
Watcher.prototype.cleanupDeps = function cleanupDeps () {
    var this$1 = this;

  var i = this.deps.length;
  while (i--) {
    var dep = this$1.deps[i];
    if (!this$1.newDepIds.has(dep.id)) {
      dep.removeSub(this$1);
    }
  }
  var tmp = this.depIds;
  this.depIds = this.newDepIds;
  this.newDepIds = tmp;
  this.newDepIds.clear();
  tmp = this.deps;
  this.deps = this.newDeps;
  this.newDeps = tmp;
  this.newDeps.length = 0;
};

/**
 * Subscriber interface.
 * Will be called when a dependency changes.
 */
Watcher.prototype.update = function update () {
  /* istanbul ignore else */
  if (this.lazy) {
    this.dirty = true;
  } else if (this.sync) {
    this.run();
  } else {
    queueWatcher(this);
  }
};

/**
 * Scheduler job interface.
 * Will be called by the scheduler.
 */
Watcher.prototype.run = function run () {
  if (this.active) {
    var value = this.get();
    if (
      value !== this.value ||
      // Deep watchers and watchers on Object/Arrays should fire even
      // when the value is the same, because the value may
      // have mutated.
      isObject(value) ||
      this.deep
    ) {
      // set new value
      var oldValue = this.value;
      this.value = value;
      if (this.user) {
        try {
          this.cb.call(this.vm, value, oldValue);
        } catch (e) {
          handleError(e, this.vm, ("callback for watcher \"" + (this.expression) + "\""));
        }
      } else {
        this.cb.call(this.vm, value, oldValue);
      }
    }
  }
};

/**
 * Evaluate the value of the watcher.
 * This only gets called for lazy watchers.
 */
Watcher.prototype.evaluate = function evaluate () {
  this.value = this.get();
  this.dirty = false;
};

/**
 * Depend on all deps collected by this watcher.
 */
Watcher.prototype.depend = function depend () {
    var this$1 = this;

  var i = this.deps.length;
  while (i--) {
    this$1.deps[i].depend();
  }
};

/**
 * Remove self from all dependencies' subscriber list.
 */
Watcher.prototype.teardown = function teardown () {
    var this$1 = this;

  if (this.active) {
    // remove self from vm's watcher list
    // this is a somewhat expensive operation so we skip it
    // if the vm is being destroyed.
    if (!this.vm._isBeingDestroyed) {
      remove(this.vm._watchers, this);
    }
    var i = this.deps.length;
    while (i--) {
      this$1.deps[i].removeSub(this$1);
    }
    this.active = false;
  }
};

/**
 * Recursively traverse an object to evoke all converted
 * getters, so that every nested property inside the object
 * is collected as a "deep" dependency.
 */
var seenObjects = new _Set();
function traverse (val) {
  seenObjects.clear();
  _traverse(val, seenObjects);
}

function _traverse (val, seen) {
  var i, keys;
  var isA = Array.isArray(val);
  if ((!isA && !isObject(val)) || !Object.isExtensible(val)) {
    return
  }
  if (val.__ob__) {
    var depId = val.__ob__.dep.id;
    if (seen.has(depId)) {
      return
    }
    seen.add(depId);
  }
  if (isA) {
    i = val.length;
    while (i--) { _traverse(val[i], seen); }
  } else {
    keys = Object.keys(val);
    i = keys.length;
    while (i--) { _traverse(val[keys[i]], seen); }
  }
}

/*  */

var sharedPropertyDefinition = {
  enumerable: true,
  configurable: true,
  get: noop,
  set: noop
};

function proxy (target, sourceKey, key) {
  sharedPropertyDefinition.get = function proxyGetter () {
    return this[sourceKey][key]
  };
  sharedPropertyDefinition.set = function proxySetter (val) {
    this[sourceKey][key] = val;
  };
  Object.defineProperty(target, key, sharedPropertyDefinition);
}

function initState (vm) {
  vm._watchers = [];
  var opts = vm.$options;
  if (opts.props) { initProps(vm, opts.props); }
  if (opts.methods) { initMethods(vm, opts.methods); }
  if (opts.data) {
    initData(vm);
  } else {
    observe(vm._data = {}, true /* asRootData */);
  }
  if (opts.computed) { initComputed(vm, opts.computed); }
  if (opts.watch) { initWatch(vm, opts.watch); }
}

var isReservedProp = { key: 1, ref: 1, slot: 1 };

function initProps (vm, propsOptions) {
  var propsData = vm.$options.propsData || {};
  var props = vm._props = {};
  // cache prop keys so that future props updates can iterate using Array
  // instead of dynamic object key enumeration.
  var keys = vm.$options._propKeys = [];
  var isRoot = !vm.$parent;
  // root instance props should be converted
  observerState.shouldConvert = isRoot;
  var loop = function ( key ) {
    keys.push(key);
    var value = validateProp(key, propsOptions, propsData, vm);
    /* istanbul ignore else */
    {
      if (isReservedProp[key]) {
        warn(
          ("\"" + key + "\" is a reserved attribute and cannot be used as component prop."),
          vm
        );
      }
      defineReactive$$1(props, key, value, function () {
        if (vm.$parent && !observerState.isSettingProps) {
          warn(
            "Avoid mutating a prop directly since the value will be " +
            "overwritten whenever the parent component re-renders. " +
            "Instead, use a data or computed property based on the prop's " +
            "value. Prop being mutated: \"" + key + "\"",
            vm
          );
        }
      });
    }
    // static props are already proxied on the component's prototype
    // during Vue.extend(). We only need to proxy props defined at
    // instantiation here.
    if (!(key in vm)) {
      proxy(vm, "_props", key);
    }
  };

  for (var key in propsOptions) loop( key );
  observerState.shouldConvert = true;
}

function initData (vm) {
  var data = vm.$options.data;
  data = vm._data = typeof data === 'function'
    ? data.call(vm)
    : data || {};
  if (!isPlainObject(data)) {
    data = {};
    "development" !== 'production' && warn(
      'data functions should return an object:\n' +
      'https://vuejs.org/v2/guide/components.html#data-Must-Be-a-Function',
      vm
    );
  }
  // proxy data on instance
  var keys = Object.keys(data);
  var props = vm.$options.props;
  var i = keys.length;
  while (i--) {
    if (props && hasOwn(props, keys[i])) {
      "development" !== 'production' && warn(
        "The data property \"" + (keys[i]) + "\" is already declared as a prop. " +
        "Use prop default value instead.",
        vm
      );
    } else if (!isReserved(keys[i])) {
      proxy(vm, "_data", keys[i]);
    }
  }
  // observe data
  observe(data, true /* asRootData */);
}

var computedWatcherOptions = { lazy: true };

function initComputed (vm, computed) {
  var watchers = vm._computedWatchers = Object.create(null);

  for (var key in computed) {
    var userDef = computed[key];
    var getter = typeof userDef === 'function' ? userDef : userDef.get;
    // create internal watcher for the computed property.
    watchers[key] = new Watcher(vm, getter, noop, computedWatcherOptions);

    // component-defined computed properties are already defined on the
    // component prototype. We only need to define computed properties defined
    // at instantiation here.
    if (!(key in vm)) {
      defineComputed(vm, key, userDef);
    }
  }
}

function defineComputed (target, key, userDef) {
  if (typeof userDef === 'function') {
    sharedPropertyDefinition.get = createComputedGetter(key);
    sharedPropertyDefinition.set = noop;
  } else {
    sharedPropertyDefinition.get = userDef.get
      ? userDef.cache !== false
        ? createComputedGetter(key)
        : userDef.get
      : noop;
    sharedPropertyDefinition.set = userDef.set
      ? userDef.set
      : noop;
  }
  Object.defineProperty(target, key, sharedPropertyDefinition);
}

function createComputedGetter (key) {
  return function computedGetter () {
    var watcher = this._computedWatchers && this._computedWatchers[key];
    if (watcher) {
      if (watcher.dirty) {
        watcher.evaluate();
      }
      if (Dep.target) {
        watcher.depend();
      }
      return watcher.value
    }
  }
}

function initMethods (vm, methods) {
  var props = vm.$options.props;
  for (var key in methods) {
    vm[key] = methods[key] == null ? noop : bind(methods[key], vm);
    {
      if (methods[key] == null) {
        warn(
          "method \"" + key + "\" has an undefined value in the component definition. " +
          "Did you reference the function correctly?",
          vm
        );
      }
      if (props && hasOwn(props, key)) {
        warn(
          ("method \"" + key + "\" has already been defined as a prop."),
          vm
        );
      }
    }
  }
}

function initWatch (vm, watch) {
  for (var key in watch) {
    var handler = watch[key];
    if (Array.isArray(handler)) {
      for (var i = 0; i < handler.length; i++) {
        createWatcher(vm, key, handler[i]);
      }
    } else {
      createWatcher(vm, key, handler);
    }
  }
}

function createWatcher (vm, key, handler) {
  var options;
  if (isPlainObject(handler)) {
    options = handler;
    handler = handler.handler;
  }
  if (typeof handler === 'string') {
    handler = vm[handler];
  }
  vm.$watch(key, handler, options);
}

function stateMixin (Vue) {
  // flow somehow has problems with directly declared definition object
  // when using Object.defineProperty, so we have to procedurally build up
  // the object here.
  var dataDef = {};
  dataDef.get = function () { return this._data };
  var propsDef = {};
  propsDef.get = function () { return this._props };
  {
    dataDef.set = function (newData) {
      warn(
        'Avoid replacing instance root $data. ' +
        'Use nested data properties instead.',
        this
      );
    };
    propsDef.set = function () {
      warn("$props is readonly.", this);
    };
  }
  Object.defineProperty(Vue.prototype, '$data', dataDef);
  Object.defineProperty(Vue.prototype, '$props', propsDef);

  Vue.prototype.$set = set;
  Vue.prototype.$delete = del;

  Vue.prototype.$watch = function (
    expOrFn,
    cb,
    options
  ) {
    var vm = this;
    options = options || {};
    options.user = true;
    var watcher = new Watcher(vm, expOrFn, cb, options);
    if (options.immediate) {
      cb.call(vm, watcher.value);
    }
    return function unwatchFn () {
      watcher.teardown();
    }
  };
}

/*  */

var hooks = { init: init, prepatch: prepatch, insert: insert, destroy: destroy };
var hooksToMerge = Object.keys(hooks);

function createComponent (
  Ctor,
  data,
  context,
  children,
  tag
) {
  if (!Ctor) {
    return
  }

  var baseCtor = context.$options._base;
  if (isObject(Ctor)) {
    Ctor = baseCtor.extend(Ctor);
  }

  if (typeof Ctor !== 'function') {
    {
      warn(("Invalid Component definition: " + (String(Ctor))), context);
    }
    return
  }

  // async component
  if (!Ctor.cid) {
    if (Ctor.resolved) {
      Ctor = Ctor.resolved;
    } else {
      Ctor = resolveAsyncComponent(Ctor, baseCtor, function () {
        // it's ok to queue this on every render because
        // $forceUpdate is buffered by the scheduler.
        context.$forceUpdate();
      });
      if (!Ctor) {
        // return nothing if this is indeed an async component
        // wait for the callback to trigger parent update.
        return
      }
    }
  }

  // resolve constructor options in case global mixins are applied after
  // component constructor creation
  resolveConstructorOptions(Ctor);

  data = data || {};

  // transform component v-model data into props & events
  if (data.model) {
    transformModel(Ctor.options, data);
  }

  // extract props
  var propsData = extractProps(data, Ctor);

  // functional component
  if (Ctor.options.functional) {
    return createFunctionalComponent(Ctor, propsData, data, context, children)
  }

  // extract listeners, since these needs to be treated as
  // child component listeners instead of DOM listeners
  var listeners = data.on;
  // replace with listeners with .native modifier
  data.on = data.nativeOn;

  if (Ctor.options.abstract) {
    // abstract components do not keep anything
    // other than props & listeners
    data = {};
  }

  // merge component management hooks onto the placeholder node
  mergeHooks(data);

  // return a placeholder vnode
  var name = Ctor.options.name || tag;
  var vnode = new VNode(
    ("vue-component-" + (Ctor.cid) + (name ? ("-" + name) : '')),
    data, undefined, undefined, undefined, context,
    { Ctor: Ctor, propsData: propsData, listeners: listeners, tag: tag, children: children }
  );
  return vnode
}

function createFunctionalComponent (
  Ctor,
  propsData,
  data,
  context,
  children
) {
  var props = {};
  var propOptions = Ctor.options.props;
  if (propOptions) {
    for (var key in propOptions) {
      props[key] = validateProp(key, propOptions, propsData);
    }
  }
  // ensure the createElement function in functional components
  // gets a unique context - this is necessary for correct named slot check
  var _context = Object.create(context);
  var h = function (a, b, c, d) { return createElement(_context, a, b, c, d, true); };
  var vnode = Ctor.options.render.call(null, h, {
    props: props,
    data: data,
    parent: context,
    children: children,
    slots: function () { return resolveSlots(children, context); }
  });
  if (vnode instanceof VNode) {
    vnode.functionalContext = context;
    if (data.slot) {
      (vnode.data || (vnode.data = {})).slot = data.slot;
    }
  }
  return vnode
}

function createComponentInstanceForVnode (
  vnode, // we know it's MountedComponentVNode but flow doesn't
  parent, // activeInstance in lifecycle state
  parentElm,
  refElm
) {
  var vnodeComponentOptions = vnode.componentOptions;
  var options = {
    _isComponent: true,
    parent: parent,
    propsData: vnodeComponentOptions.propsData,
    _componentTag: vnodeComponentOptions.tag,
    _parentVnode: vnode,
    _parentListeners: vnodeComponentOptions.listeners,
    _renderChildren: vnodeComponentOptions.children,
    _parentElm: parentElm || null,
    _refElm: refElm || null
  };
  // check inline-template render functions
  var inlineTemplate = vnode.data.inlineTemplate;
  if (inlineTemplate) {
    options.render = inlineTemplate.render;
    options.staticRenderFns = inlineTemplate.staticRenderFns;
  }
  return new vnodeComponentOptions.Ctor(options)
}

function init (
  vnode,
  hydrating,
  parentElm,
  refElm
) {
  if (!vnode.componentInstance || vnode.componentInstance._isDestroyed) {
    var child = vnode.componentInstance = createComponentInstanceForVnode(
      vnode,
      activeInstance,
      parentElm,
      refElm
    );
    child.$mount(hydrating ? vnode.elm : undefined, hydrating);
  } else if (vnode.data.keepAlive) {
    // kept-alive components, treat as a patch
    var mountedNode = vnode; // work around flow
    prepatch(mountedNode, mountedNode);
  }
}

function prepatch (
  oldVnode,
  vnode
) {
  var options = vnode.componentOptions;
  var child = vnode.componentInstance = oldVnode.componentInstance;
  updateChildComponent(
    child,
    options.propsData, // updated props
    options.listeners, // updated listeners
    vnode, // new parent vnode
    options.children // new children
  );
}

function insert (vnode) {
  if (!vnode.componentInstance._isMounted) {
    vnode.componentInstance._isMounted = true;
    callHook(vnode.componentInstance, 'mounted');
  }
  if (vnode.data.keepAlive) {
    activateChildComponent(vnode.componentInstance, true /* direct */);
  }
}

function destroy (vnode) {
  if (!vnode.componentInstance._isDestroyed) {
    if (!vnode.data.keepAlive) {
      vnode.componentInstance.$destroy();
    } else {
      deactivateChildComponent(vnode.componentInstance, true /* direct */);
    }
  }
}

function resolveAsyncComponent (
  factory,
  baseCtor,
  cb
) {
  if (factory.requested) {
    // pool callbacks
    factory.pendingCallbacks.push(cb);
  } else {
    factory.requested = true;
    var cbs = factory.pendingCallbacks = [cb];
    var sync = true;

    var resolve = function (res) {
      if (isObject(res)) {
        res = baseCtor.extend(res);
      }
      // cache resolved
      factory.resolved = res;
      // invoke callbacks only if this is not a synchronous resolve
      // (async resolves are shimmed as synchronous during SSR)
      if (!sync) {
        for (var i = 0, l = cbs.length; i < l; i++) {
          cbs[i](res);
        }
      }
    };

    var reject = function (reason) {
      "development" !== 'production' && warn(
        "Failed to resolve async component: " + (String(factory)) +
        (reason ? ("\nReason: " + reason) : '')
      );
    };

    var res = factory(resolve, reject);

    // handle promise
    if (res && typeof res.then === 'function' && !factory.resolved) {
      res.then(resolve, reject);
    }

    sync = false;
    // return in case resolved synchronously
    return factory.resolved
  }
}

function extractProps (data, Ctor) {
  // we are only extracting raw values here.
  // validation and default values are handled in the child
  // component itself.
  var propOptions = Ctor.options.props;
  if (!propOptions) {
    return
  }
  var res = {};
  var attrs = data.attrs;
  var props = data.props;
  var domProps = data.domProps;
  if (attrs || props || domProps) {
    for (var key in propOptions) {
      var altKey = hyphenate(key);
      checkProp(res, props, key, altKey, true) ||
      checkProp(res, attrs, key, altKey) ||
      checkProp(res, domProps, key, altKey);
    }
  }
  return res
}

function checkProp (
  res,
  hash,
  key,
  altKey,
  preserve
) {
  if (hash) {
    if (hasOwn(hash, key)) {
      res[key] = hash[key];
      if (!preserve) {
        delete hash[key];
      }
      return true
    } else if (hasOwn(hash, altKey)) {
      res[key] = hash[altKey];
      if (!preserve) {
        delete hash[altKey];
      }
      return true
    }
  }
  return false
}

function mergeHooks (data) {
  if (!data.hook) {
    data.hook = {};
  }
  for (var i = 0; i < hooksToMerge.length; i++) {
    var key = hooksToMerge[i];
    var fromParent = data.hook[key];
    var ours = hooks[key];
    data.hook[key] = fromParent ? mergeHook$1(ours, fromParent) : ours;
  }
}

function mergeHook$1 (one, two) {
  return function (a, b, c, d) {
    one(a, b, c, d);
    two(a, b, c, d);
  }
}

// transform component v-model info (value and callback) into
// prop and event handler respectively.
function transformModel (options, data) {
  var prop = (options.model && options.model.prop) || 'value';
  var event = (options.model && options.model.event) || 'input';(data.props || (data.props = {}))[prop] = data.model.value;
  var on = data.on || (data.on = {});
  if (on[event]) {
    on[event] = [data.model.callback].concat(on[event]);
  } else {
    on[event] = data.model.callback;
  }
}

/*  */

var SIMPLE_NORMALIZE = 1;
var ALWAYS_NORMALIZE = 2;

// wrapper function for providing a more flexible interface
// without getting yelled at by flow
function createElement (
  context,
  tag,
  data,
  children,
  normalizationType,
  alwaysNormalize
) {
  if (Array.isArray(data) || isPrimitive(data)) {
    normalizationType = children;
    children = data;
    data = undefined;
  }
  if (alwaysNormalize) { normalizationType = ALWAYS_NORMALIZE; }
  return _createElement(context, tag, data, children, normalizationType)
}

function _createElement (
  context,
  tag,
  data,
  children,
  normalizationType
) {
  if (data && data.__ob__) {
    "development" !== 'production' && warn(
      "Avoid using observed data object as vnode data: " + (JSON.stringify(data)) + "\n" +
      'Always create fresh vnode data objects in each render!',
      context
    );
    return createEmptyVNode()
  }
  if (!tag) {
    // in case of component :is set to falsy value
    return createEmptyVNode()
  }
  // support single function children as default scoped slot
  if (Array.isArray(children) &&
      typeof children[0] === 'function') {
    data = data || {};
    data.scopedSlots = { default: children[0] };
    children.length = 0;
  }
  if (normalizationType === ALWAYS_NORMALIZE) {
    children = normalizeChildren(children);
  } else if (normalizationType === SIMPLE_NORMALIZE) {
    children = simpleNormalizeChildren(children);
  }
  var vnode, ns;
  if (typeof tag === 'string') {
    var Ctor;
    ns = config.getTagNamespace(tag);
    if (config.isReservedTag(tag)) {
      // platform built-in elements
      vnode = new VNode(
        config.parsePlatformTagName(tag), data, children,
        undefined, undefined, context
      );
    } else if ((Ctor = resolveAsset(context.$options, 'components', tag))) {
      // component
      vnode = createComponent(Ctor, data, context, children, tag);
    } else {
      // unknown or unlisted namespaced elements
      // check at runtime because it may get assigned a namespace when its
      // parent normalizes children
      vnode = new VNode(
        tag, data, children,
        undefined, undefined, context
      );
    }
  } else {
    // direct component options / constructor
    vnode = createComponent(tag, data, context, children);
  }
  if (vnode) {
    if (ns) { applyNS(vnode, ns); }
    return vnode
  } else {
    return createEmptyVNode()
  }
}

function applyNS (vnode, ns) {
  vnode.ns = ns;
  if (vnode.tag === 'foreignObject') {
    // use default namespace inside foreignObject
    return
  }
  if (vnode.children) {
    for (var i = 0, l = vnode.children.length; i < l; i++) {
      var child = vnode.children[i];
      if (child.tag && !child.ns) {
        applyNS(child, ns);
      }
    }
  }
}

/*  */

/**
 * Runtime helper for rendering v-for lists.
 */
function renderList (
  val,
  render
) {
  var ret, i, l, keys, key;
  if (Array.isArray(val) || typeof val === 'string') {
    ret = new Array(val.length);
    for (i = 0, l = val.length; i < l; i++) {
      ret[i] = render(val[i], i);
    }
  } else if (typeof val === 'number') {
    ret = new Array(val);
    for (i = 0; i < val; i++) {
      ret[i] = render(i + 1, i);
    }
  } else if (isObject(val)) {
    keys = Object.keys(val);
    ret = new Array(keys.length);
    for (i = 0, l = keys.length; i < l; i++) {
      key = keys[i];
      ret[i] = render(val[key], key, i);
    }
  }
  return ret
}

/*  */

/**
 * Runtime helper for rendering <slot>
 */
function renderSlot (
  name,
  fallback,
  props,
  bindObject
) {
  var scopedSlotFn = this.$scopedSlots[name];
  if (scopedSlotFn) { // scoped slot
    props = props || {};
    if (bindObject) {
      extend(props, bindObject);
    }
    return scopedSlotFn(props) || fallback
  } else {
    var slotNodes = this.$slots[name];
    // warn duplicate slot usage
    if (slotNodes && "development" !== 'production') {
      slotNodes._rendered && warn(
        "Duplicate presence of slot \"" + name + "\" found in the same render tree " +
        "- this will likely cause render errors.",
        this
      );
      slotNodes._rendered = true;
    }
    return slotNodes || fallback
  }
}

/*  */

/**
 * Runtime helper for resolving filters
 */
function resolveFilter (id) {
  return resolveAsset(this.$options, 'filters', id, true) || identity
}

/*  */

/**
 * Runtime helper for checking keyCodes from config.
 */
function checkKeyCodes (
  eventKeyCode,
  key,
  builtInAlias
) {
  var keyCodes = config.keyCodes[key] || builtInAlias;
  if (Array.isArray(keyCodes)) {
    return keyCodes.indexOf(eventKeyCode) === -1
  } else {
    return keyCodes !== eventKeyCode
  }
}

/*  */

/**
 * Runtime helper for merging v-bind="object" into a VNode's data.
 */
function bindObjectProps (
  data,
  tag,
  value,
  asProp
) {
  if (value) {
    if (!isObject(value)) {
      "development" !== 'production' && warn(
        'v-bind without argument expects an Object or Array value',
        this
      );
    } else {
      if (Array.isArray(value)) {
        value = toObject(value);
      }
      for (var key in value) {
        if (key === 'class' || key === 'style') {
          data[key] = value[key];
        } else {
          var type = data.attrs && data.attrs.type;
          var hash = asProp || config.mustUseProp(tag, type, key)
            ? data.domProps || (data.domProps = {})
            : data.attrs || (data.attrs = {});
          hash[key] = value[key];
        }
      }
    }
  }
  return data
}

/*  */

/**
 * Runtime helper for rendering static trees.
 */
function renderStatic (
  index,
  isInFor
) {
  var tree = this._staticTrees[index];
  // if has already-rendered static tree and not inside v-for,
  // we can reuse the same tree by doing a shallow clone.
  if (tree && !isInFor) {
    return Array.isArray(tree)
      ? cloneVNodes(tree)
      : cloneVNode(tree)
  }
  // otherwise, render a fresh tree.
  tree = this._staticTrees[index] =
    this.$options.staticRenderFns[index].call(this._renderProxy);
  markStatic(tree, ("__static__" + index), false);
  return tree
}

/**
 * Runtime helper for v-once.
 * Effectively it means marking the node as static with a unique key.
 */
function markOnce (
  tree,
  index,
  key
) {
  markStatic(tree, ("__once__" + index + (key ? ("_" + key) : "")), true);
  return tree
}

function markStatic (
  tree,
  key,
  isOnce
) {
  if (Array.isArray(tree)) {
    for (var i = 0; i < tree.length; i++) {
      if (tree[i] && typeof tree[i] !== 'string') {
        markStaticNode(tree[i], (key + "_" + i), isOnce);
      }
    }
  } else {
    markStaticNode(tree, key, isOnce);
  }
}

function markStaticNode (node, key, isOnce) {
  node.isStatic = true;
  node.key = key;
  node.isOnce = isOnce;
}

/*  */

function initRender (vm) {
  vm.$vnode = null; // the placeholder node in parent tree
  vm._vnode = null; // the root of the child tree
  vm._staticTrees = null;
  var parentVnode = vm.$options._parentVnode;
  var renderContext = parentVnode && parentVnode.context;
  vm.$slots = resolveSlots(vm.$options._renderChildren, renderContext);
  vm.$scopedSlots = emptyObject;
  // bind the createElement fn to this instance
  // so that we get proper render context inside it.
  // args order: tag, data, children, normalizationType, alwaysNormalize
  // internal version is used by render functions compiled from templates
  vm._c = function (a, b, c, d) { return createElement(vm, a, b, c, d, false); };
  // normalization is always applied for the public version, used in
  // user-written render functions.
  vm.$createElement = function (a, b, c, d) { return createElement(vm, a, b, c, d, true); };
}

function renderMixin (Vue) {
  Vue.prototype.$nextTick = function (fn) {
    return nextTick(fn, this)
  };

  Vue.prototype._render = function () {
    var vm = this;
    var ref = vm.$options;
    var render = ref.render;
    var staticRenderFns = ref.staticRenderFns;
    var _parentVnode = ref._parentVnode;

    if (vm._isMounted) {
      // clone slot nodes on re-renders
      for (var key in vm.$slots) {
        vm.$slots[key] = cloneVNodes(vm.$slots[key]);
      }
    }

    vm.$scopedSlots = (_parentVnode && _parentVnode.data.scopedSlots) || emptyObject;

    if (staticRenderFns && !vm._staticTrees) {
      vm._staticTrees = [];
    }
    // set parent vnode. this allows render functions to have access
    // to the data on the placeholder node.
    vm.$vnode = _parentVnode;
    // render self
    var vnode;
    try {
      vnode = render.call(vm._renderProxy, vm.$createElement);
    } catch (e) {
      handleError(e, vm, "render function");
      // return error render result,
      // or previous vnode to prevent render error causing blank component
      /* istanbul ignore else */
      {
        vnode = vm.$options.renderError
          ? vm.$options.renderError.call(vm._renderProxy, vm.$createElement, e)
          : vm._vnode;
      }
    }
    // return empty vnode in case the render function errored out
    if (!(vnode instanceof VNode)) {
      if ("development" !== 'production' && Array.isArray(vnode)) {
        warn(
          'Multiple root nodes returned from render function. Render function ' +
          'should return a single root node.',
          vm
        );
      }
      vnode = createEmptyVNode();
    }
    // set parent
    vnode.parent = _parentVnode;
    return vnode
  };

  // internal render helpers.
  // these are exposed on the instance prototype to reduce generated render
  // code size.
  Vue.prototype._o = markOnce;
  Vue.prototype._n = toNumber;
  Vue.prototype._s = _toString;
  Vue.prototype._l = renderList;
  Vue.prototype._t = renderSlot;
  Vue.prototype._q = looseEqual;
  Vue.prototype._i = looseIndexOf;
  Vue.prototype._m = renderStatic;
  Vue.prototype._f = resolveFilter;
  Vue.prototype._k = checkKeyCodes;
  Vue.prototype._b = bindObjectProps;
  Vue.prototype._v = createTextVNode;
  Vue.prototype._e = createEmptyVNode;
  Vue.prototype._u = resolveScopedSlots;
}

/*  */

function initInjections (vm) {
  var provide = vm.$options.provide;
  var inject = vm.$options.inject;
  if (provide) {
    vm._provided = typeof provide === 'function'
      ? provide.call(vm)
      : provide;
  }
  if (inject) {
    // inject is :any because flow is not smart enough to figure out cached
    // isArray here
    var isArray = Array.isArray(inject);
    var keys = isArray
      ? inject
      : hasSymbol
        ? Reflect.ownKeys(inject)
        : Object.keys(inject);

    for (var i = 0; i < keys.length; i++) {
      var key = keys[i];
      var provideKey = isArray ? key : inject[key];
      var source = vm;
      while (source) {
        if (source._provided && source._provided[provideKey]) {
          vm[key] = source._provided[provideKey];
          break
        }
        source = source.$parent;
      }
    }
  }
}

/*  */

var uid = 0;

function initMixin (Vue) {
  Vue.prototype._init = function (options) {
    /* istanbul ignore if */
    if ("development" !== 'production' && config.performance && perf) {
      perf.mark('init');
    }

    var vm = this;
    // a uid
    vm._uid = uid++;
    // a flag to avoid this being observed
    vm._isVue = true;
    // merge options
    if (options && options._isComponent) {
      // optimize internal component instantiation
      // since dynamic options merging is pretty slow, and none of the
      // internal component options needs special treatment.
      initInternalComponent(vm, options);
    } else {
      vm.$options = mergeOptions(
        resolveConstructorOptions(vm.constructor),
        options || {},
        vm
      );
    }
    /* istanbul ignore else */
    {
      initProxy(vm);
    }
    // expose real self
    vm._self = vm;
    initLifecycle(vm);
    initEvents(vm);
    initRender(vm);
    callHook(vm, 'beforeCreate');
    initState(vm);
    initInjections(vm);
    callHook(vm, 'created');

    /* istanbul ignore if */
    if ("development" !== 'production' && config.performance && perf) {
      vm._name = formatComponentName(vm, false);
      perf.mark('init end');
      perf.measure(((vm._name) + " init"), 'init', 'init end');
    }

    if (vm.$options.el) {
      vm.$mount(vm.$options.el);
    }
  };
}

function initInternalComponent (vm, options) {
  var opts = vm.$options = Object.create(vm.constructor.options);
  // doing this because it's faster than dynamic enumeration.
  opts.parent = options.parent;
  opts.propsData = options.propsData;
  opts._parentVnode = options._parentVnode;
  opts._parentListeners = options._parentListeners;
  opts._renderChildren = options._renderChildren;
  opts._componentTag = options._componentTag;
  opts._parentElm = options._parentElm;
  opts._refElm = options._refElm;
  if (options.render) {
    opts.render = options.render;
    opts.staticRenderFns = options.staticRenderFns;
  }
}

function resolveConstructorOptions (Ctor) {
  var options = Ctor.options;
  if (Ctor.super) {
    var superOptions = resolveConstructorOptions(Ctor.super);
    var cachedSuperOptions = Ctor.superOptions;
    if (superOptions !== cachedSuperOptions) {
      // super option changed,
      // need to resolve new options.
      Ctor.superOptions = superOptions;
      // check if there are any late-modified/attached options (#4976)
      var modifiedOptions = resolveModifiedOptions(Ctor);
      // update base extend options
      if (modifiedOptions) {
        extend(Ctor.extendOptions, modifiedOptions);
      }
      options = Ctor.options = mergeOptions(superOptions, Ctor.extendOptions);
      if (options.name) {
        options.components[options.name] = Ctor;
      }
    }
  }
  return options
}

function resolveModifiedOptions (Ctor) {
  var modified;
  var latest = Ctor.options;
  var sealed = Ctor.sealedOptions;
  for (var key in latest) {
    if (latest[key] !== sealed[key]) {
      if (!modified) { modified = {}; }
      modified[key] = dedupe(latest[key], sealed[key]);
    }
  }
  return modified
}

function dedupe (latest, sealed) {
  // compare latest and sealed to ensure lifecycle hooks won't be duplicated
  // between merges
  if (Array.isArray(latest)) {
    var res = [];
    sealed = Array.isArray(sealed) ? sealed : [sealed];
    for (var i = 0; i < latest.length; i++) {
      if (sealed.indexOf(latest[i]) < 0) {
        res.push(latest[i]);
      }
    }
    return res
  } else {
    return latest
  }
}

function Vue$3 (options) {
  if ("development" !== 'production' &&
    !(this instanceof Vue$3)) {
    warn('Vue is a constructor and should be called with the `new` keyword');
  }
  this._init(options);
}

initMixin(Vue$3);
stateMixin(Vue$3);
eventsMixin(Vue$3);
lifecycleMixin(Vue$3);
renderMixin(Vue$3);

/*  */

function initUse (Vue) {
  Vue.use = function (plugin) {
    /* istanbul ignore if */
    if (plugin.installed) {
      return
    }
    // additional parameters
    var args = toArray(arguments, 1);
    args.unshift(this);
    if (typeof plugin.install === 'function') {
      plugin.install.apply(plugin, args);
    } else if (typeof plugin === 'function') {
      plugin.apply(null, args);
    }
    plugin.installed = true;
    return this
  };
}

/*  */

function initMixin$1 (Vue) {
  Vue.mixin = function (mixin) {
    this.options = mergeOptions(this.options, mixin);
  };
}

/*  */

function initExtend (Vue) {
  /**
   * Each instance constructor, including Vue, has a unique
   * cid. This enables us to create wrapped "child
   * constructors" for prototypal inheritance and cache them.
   */
  Vue.cid = 0;
  var cid = 1;

  /**
   * Class inheritance
   */
  Vue.extend = function (extendOptions) {
    extendOptions = extendOptions || {};
    var Super = this;
    var SuperId = Super.cid;
    var cachedCtors = extendOptions._Ctor || (extendOptions._Ctor = {});
    if (cachedCtors[SuperId]) {
      return cachedCtors[SuperId]
    }

    var name = extendOptions.name || Super.options.name;
    {
      if (!/^[a-zA-Z][\w-]*$/.test(name)) {
        warn(
          'Invalid component name: "' + name + '". Component names ' +
          'can only contain alphanumeric characters and the hyphen, ' +
          'and must start with a letter.'
        );
      }
    }

    var Sub = function VueComponent (options) {
      this._init(options);
    };
    Sub.prototype = Object.create(Super.prototype);
    Sub.prototype.constructor = Sub;
    Sub.cid = cid++;
    Sub.options = mergeOptions(
      Super.options,
      extendOptions
    );
    Sub['super'] = Super;

    // For props and computed properties, we define the proxy getters on
    // the Vue instances at extension time, on the extended prototype. This
    // avoids Object.defineProperty calls for each instance created.
    if (Sub.options.props) {
      initProps$1(Sub);
    }
    if (Sub.options.computed) {
      initComputed$1(Sub);
    }

    // allow further extension/mixin/plugin usage
    Sub.extend = Super.extend;
    Sub.mixin = Super.mixin;
    Sub.use = Super.use;

    // create asset registers, so extended classes
    // can have their private assets too.
    config._assetTypes.forEach(function (type) {
      Sub[type] = Super[type];
    });
    // enable recursive self-lookup
    if (name) {
      Sub.options.components[name] = Sub;
    }

    // keep a reference to the super options at extension time.
    // later at instantiation we can check if Super's options have
    // been updated.
    Sub.superOptions = Super.options;
    Sub.extendOptions = extendOptions;
    Sub.sealedOptions = extend({}, Sub.options);

    // cache constructor
    cachedCtors[SuperId] = Sub;
    return Sub
  };
}

function initProps$1 (Comp) {
  var props = Comp.options.props;
  for (var key in props) {
    proxy(Comp.prototype, "_props", key);
  }
}

function initComputed$1 (Comp) {
  var computed = Comp.options.computed;
  for (var key in computed) {
    defineComputed(Comp.prototype, key, computed[key]);
  }
}

/*  */

function initAssetRegisters (Vue) {
  /**
   * Create asset registration methods.
   */
  config._assetTypes.forEach(function (type) {
    Vue[type] = function (
      id,
      definition
    ) {
      if (!definition) {
        return this.options[type + 's'][id]
      } else {
        /* istanbul ignore if */
        {
          if (type === 'component' && config.isReservedTag(id)) {
            warn(
              'Do not use built-in or reserved HTML elements as component ' +
              'id: ' + id
            );
          }
        }
        if (type === 'component' && isPlainObject(definition)) {
          definition.name = definition.name || id;
          definition = this.options._base.extend(definition);
        }
        if (type === 'directive' && typeof definition === 'function') {
          definition = { bind: definition, update: definition };
        }
        this.options[type + 's'][id] = definition;
        return definition
      }
    };
  });
}

/*  */

var patternTypes = [String, RegExp];

function getComponentName (opts) {
  return opts && (opts.Ctor.options.name || opts.tag)
}

function matches (pattern, name) {
  if (typeof pattern === 'string') {
    return pattern.split(',').indexOf(name) > -1
  } else if (pattern instanceof RegExp) {
    return pattern.test(name)
  }
  /* istanbul ignore next */
  return false
}

function pruneCache (cache, filter) {
  for (var key in cache) {
    var cachedNode = cache[key];
    if (cachedNode) {
      var name = getComponentName(cachedNode.componentOptions);
      if (name && !filter(name)) {
        pruneCacheEntry(cachedNode);
        cache[key] = null;
      }
    }
  }
}

function pruneCacheEntry (vnode) {
  if (vnode) {
    if (!vnode.componentInstance._inactive) {
      callHook(vnode.componentInstance, 'deactivated');
    }
    vnode.componentInstance.$destroy();
  }
}

var KeepAlive = {
  name: 'keep-alive',
  abstract: true,

  props: {
    include: patternTypes,
    exclude: patternTypes
  },

  created: function created () {
    this.cache = Object.create(null);
  },

  destroyed: function destroyed () {
    var this$1 = this;

    for (var key in this$1.cache) {
      pruneCacheEntry(this$1.cache[key]);
    }
  },

  watch: {
    include: function include (val) {
      pruneCache(this.cache, function (name) { return matches(val, name); });
    },
    exclude: function exclude (val) {
      pruneCache(this.cache, function (name) { return !matches(val, name); });
    }
  },

  render: function render () {
    var vnode = getFirstComponentChild(this.$slots.default);
    var componentOptions = vnode && vnode.componentOptions;
    if (componentOptions) {
      // check pattern
      var name = getComponentName(componentOptions);
      if (name && (
        (this.include && !matches(this.include, name)) ||
        (this.exclude && matches(this.exclude, name))
      )) {
        return vnode
      }
      var key = vnode.key == null
        // same constructor may get registered as different local components
        // so cid alone is not enough (#3269)
        ? componentOptions.Ctor.cid + (componentOptions.tag ? ("::" + (componentOptions.tag)) : '')
        : vnode.key;
      if (this.cache[key]) {
        vnode.componentInstance = this.cache[key].componentInstance;
      } else {
        this.cache[key] = vnode;
      }
      vnode.data.keepAlive = true;
    }
    return vnode
  }
};

var builtInComponents = {
  KeepAlive: KeepAlive
};

/*  */

function initGlobalAPI (Vue) {
  // config
  var configDef = {};
  configDef.get = function () { return config; };
  {
    configDef.set = function () {
      warn(
        'Do not replace the Vue.config object, set individual fields instead.'
      );
    };
  }
  Object.defineProperty(Vue, 'config', configDef);

  // exposed util methods.
  // NOTE: these are not considered part of the public API - avoid relying on
  // them unless you are aware of the risk.
  Vue.util = {
    warn: warn,
    extend: extend,
    mergeOptions: mergeOptions,
    defineReactive: defineReactive$$1
  };

  Vue.set = set;
  Vue.delete = del;
  Vue.nextTick = nextTick;

  Vue.options = Object.create(null);
  config._assetTypes.forEach(function (type) {
    Vue.options[type + 's'] = Object.create(null);
  });

  // this is used to identify the "base" constructor to extend all plain-object
  // components with in Weex's multi-instance scenarios.
  Vue.options._base = Vue;

  extend(Vue.options.components, builtInComponents);

  initUse(Vue);
  initMixin$1(Vue);
  initExtend(Vue);
  initAssetRegisters(Vue);
}

initGlobalAPI(Vue$3);

Object.defineProperty(Vue$3.prototype, '$isServer', {
  get: isServerRendering
});

Vue$3.version = '2.2.0';

/*  */

// attributes that should be using props for binding
var acceptValue = makeMap('input,textarea,option,select');
var mustUseProp = function (tag, type, attr) {
  return (
    (attr === 'value' && acceptValue(tag)) && type !== 'button' ||
    (attr === 'selected' && tag === 'option') ||
    (attr === 'checked' && tag === 'input') ||
    (attr === 'muted' && tag === 'video')
  )
};

var isEnumeratedAttr = makeMap('contenteditable,draggable,spellcheck');

var isBooleanAttr = makeMap(
  'allowfullscreen,async,autofocus,autoplay,checked,compact,controls,declare,' +
  'default,defaultchecked,defaultmuted,defaultselected,defer,disabled,' +
  'enabled,formnovalidate,hidden,indeterminate,inert,ismap,itemscope,loop,multiple,' +
  'muted,nohref,noresize,noshade,novalidate,nowrap,open,pauseonexit,readonly,' +
  'required,reversed,scoped,seamless,selected,sortable,translate,' +
  'truespeed,typemustmatch,visible'
);

var xlinkNS = 'http://www.w3.org/1999/xlink';

var isXlink = function (name) {
  return name.charAt(5) === ':' && name.slice(0, 5) === 'xlink'
};

var getXlinkProp = function (name) {
  return isXlink(name) ? name.slice(6, name.length) : ''
};

var isFalsyAttrValue = function (val) {
  return val == null || val === false
};

/*  */

function genClassForVnode (vnode) {
  var data = vnode.data;
  var parentNode = vnode;
  var childNode = vnode;
  while (childNode.componentInstance) {
    childNode = childNode.componentInstance._vnode;
    if (childNode.data) {
      data = mergeClassData(childNode.data, data);
    }
  }
  while ((parentNode = parentNode.parent)) {
    if (parentNode.data) {
      data = mergeClassData(data, parentNode.data);
    }
  }
  return genClassFromData(data)
}

function mergeClassData (child, parent) {
  return {
    staticClass: concat(child.staticClass, parent.staticClass),
    class: child.class
      ? [child.class, parent.class]
      : parent.class
  }
}

function genClassFromData (data) {
  var dynamicClass = data.class;
  var staticClass = data.staticClass;
  if (staticClass || dynamicClass) {
    return concat(staticClass, stringifyClass(dynamicClass))
  }
  /* istanbul ignore next */
  return ''
}

function concat (a, b) {
  return a ? b ? (a + ' ' + b) : a : (b || '')
}

function stringifyClass (value) {
  var res = '';
  if (!value) {
    return res
  }
  if (typeof value === 'string') {
    return value
  }
  if (Array.isArray(value)) {
    var stringified;
    for (var i = 0, l = value.length; i < l; i++) {
      if (value[i]) {
        if ((stringified = stringifyClass(value[i]))) {
          res += stringified + ' ';
        }
      }
    }
    return res.slice(0, -1)
  }
  if (isObject(value)) {
    for (var key in value) {
      if (value[key]) { res += key + ' '; }
    }
    return res.slice(0, -1)
  }
  /* istanbul ignore next */
  return res
}

/*  */

var namespaceMap = {
  svg: 'http://www.w3.org/2000/svg',
  math: 'http://www.w3.org/1998/Math/MathML'
};

var isHTMLTag = makeMap(
  'html,body,base,head,link,meta,style,title,' +
  'address,article,aside,footer,header,h1,h2,h3,h4,h5,h6,hgroup,nav,section,' +
  'div,dd,dl,dt,figcaption,figure,hr,img,li,main,ol,p,pre,ul,' +
  'a,b,abbr,bdi,bdo,br,cite,code,data,dfn,em,i,kbd,mark,q,rp,rt,rtc,ruby,' +
  's,samp,small,span,strong,sub,sup,time,u,var,wbr,area,audio,map,track,video,' +
  'embed,object,param,source,canvas,script,noscript,del,ins,' +
  'caption,col,colgroup,table,thead,tbody,td,th,tr,' +
  'button,datalist,fieldset,form,input,label,legend,meter,optgroup,option,' +
  'output,progress,select,textarea,' +
  'details,dialog,menu,menuitem,summary,' +
  'content,element,shadow,template'
);

// this map is intentionally selective, only covering SVG elements that may
// contain child elements.
var isSVG = makeMap(
  'svg,animate,circle,clippath,cursor,defs,desc,ellipse,filter,font-face,' +
  'foreignObject,g,glyph,image,line,marker,mask,missing-glyph,path,pattern,' +
  'polygon,polyline,rect,switch,symbol,text,textpath,tspan,use,view',
  true
);

var isPreTag = function (tag) { return tag === 'pre'; };

var isReservedTag = function (tag) {
  return isHTMLTag(tag) || isSVG(tag)
};

function getTagNamespace (tag) {
  if (isSVG(tag)) {
    return 'svg'
  }
  // basic support for MathML
  // note it doesn't support other MathML elements being component roots
  if (tag === 'math') {
    return 'math'
  }
}

var unknownElementCache = Object.create(null);
function isUnknownElement (tag) {
  /* istanbul ignore if */
  if (!inBrowser) {
    return true
  }
  if (isReservedTag(tag)) {
    return false
  }
  tag = tag.toLowerCase();
  /* istanbul ignore if */
  if (unknownElementCache[tag] != null) {
    return unknownElementCache[tag]
  }
  var el = document.createElement(tag);
  if (tag.indexOf('-') > -1) {
    // http://stackoverflow.com/a/28210364/1070244
    return (unknownElementCache[tag] = (
      el.constructor === window.HTMLUnknownElement ||
      el.constructor === window.HTMLElement
    ))
  } else {
    return (unknownElementCache[tag] = /HTMLUnknownElement/.test(el.toString()))
  }
}

/*  */

/**
 * Query an element selector if it's not an element already.
 */
function query (el) {
  if (typeof el === 'string') {
    var selected = document.querySelector(el);
    if (!selected) {
      "development" !== 'production' && warn(
        'Cannot find element: ' + el
      );
      return document.createElement('div')
    }
    return selected
  } else {
    return el
  }
}

/*  */

function createElement$1 (tagName, vnode) {
  var elm = document.createElement(tagName);
  if (tagName !== 'select') {
    return elm
  }
  // false or null will remove the attribute but undefined will not
  if (vnode.data && vnode.data.attrs && vnode.data.attrs.multiple !== undefined) {
    elm.setAttribute('multiple', 'multiple');
  }
  return elm
}

function createElementNS (namespace, tagName) {
  return document.createElementNS(namespaceMap[namespace], tagName)
}

function createTextNode (text) {
  return document.createTextNode(text)
}

function createComment (text) {
  return document.createComment(text)
}

function insertBefore (parentNode, newNode, referenceNode) {
  parentNode.insertBefore(newNode, referenceNode);
}

function removeChild (node, child) {
  node.removeChild(child);
}

function appendChild (node, child) {
  node.appendChild(child);
}

function parentNode (node) {
  return node.parentNode
}

function nextSibling (node) {
  return node.nextSibling
}

function tagName (node) {
  return node.tagName
}

function setTextContent (node, text) {
  node.textContent = text;
}

function setAttribute (node, key, val) {
  node.setAttribute(key, val);
}


var nodeOps = Object.freeze({
	createElement: createElement$1,
	createElementNS: createElementNS,
	createTextNode: createTextNode,
	createComment: createComment,
	insertBefore: insertBefore,
	removeChild: removeChild,
	appendChild: appendChild,
	parentNode: parentNode,
	nextSibling: nextSibling,
	tagName: tagName,
	setTextContent: setTextContent,
	setAttribute: setAttribute
});

/*  */

var ref = {
  create: function create (_, vnode) {
    registerRef(vnode);
  },
  update: function update (oldVnode, vnode) {
    if (oldVnode.data.ref !== vnode.data.ref) {
      registerRef(oldVnode, true);
      registerRef(vnode);
    }
  },
  destroy: function destroy (vnode) {
    registerRef(vnode, true);
  }
};

function registerRef (vnode, isRemoval) {
  var key = vnode.data.ref;
  if (!key) { return }

  var vm = vnode.context;
  var ref = vnode.componentInstance || vnode.elm;
  var refs = vm.$refs;
  if (isRemoval) {
    if (Array.isArray(refs[key])) {
      remove(refs[key], ref);
    } else if (refs[key] === ref) {
      refs[key] = undefined;
    }
  } else {
    if (vnode.data.refInFor) {
      if (Array.isArray(refs[key]) && refs[key].indexOf(ref) < 0) {
        refs[key].push(ref);
      } else {
        refs[key] = [ref];
      }
    } else {
      refs[key] = ref;
    }
  }
}

/**
 * Virtual DOM patching algorithm based on Snabbdom by
 * Simon Friis Vindum (@paldepind)
 * Licensed under the MIT License
 * https://github.com/paldepind/snabbdom/blob/master/LICENSE
 *
 * modified by Evan You (@yyx990803)
 *

/*
 * Not type-checking this because this file is perf-critical and the cost
 * of making flow understand it is not worth it.
 */

var emptyNode = new VNode('', {}, []);

var hooks$1 = ['create', 'activate', 'update', 'remove', 'destroy'];

function isUndef (s) {
  return s == null
}

function isDef (s) {
  return s != null
}

function sameVnode (vnode1, vnode2) {
  return (
    vnode1.key === vnode2.key &&
    vnode1.tag === vnode2.tag &&
    vnode1.isComment === vnode2.isComment &&
    !vnode1.data === !vnode2.data
  )
}

function createKeyToOldIdx (children, beginIdx, endIdx) {
  var i, key;
  var map = {};
  for (i = beginIdx; i <= endIdx; ++i) {
    key = children[i].key;
    if (isDef(key)) { map[key] = i; }
  }
  return map
}

function createPatchFunction (backend) {
  var i, j;
  var cbs = {};

  var modules = backend.modules;
  var nodeOps = backend.nodeOps;

  for (i = 0; i < hooks$1.length; ++i) {
    cbs[hooks$1[i]] = [];
    for (j = 0; j < modules.length; ++j) {
      if (modules[j][hooks$1[i]] !== undefined) { cbs[hooks$1[i]].push(modules[j][hooks$1[i]]); }
    }
  }

  function emptyNodeAt (elm) {
    return new VNode(nodeOps.tagName(elm).toLowerCase(), {}, [], undefined, elm)
  }

  function createRmCb (childElm, listeners) {
    function remove$$1 () {
      if (--remove$$1.listeners === 0) {
        removeNode(childElm);
      }
    }
    remove$$1.listeners = listeners;
    return remove$$1
  }

  function removeNode (el) {
    var parent = nodeOps.parentNode(el);
    // element may have already been removed due to v-html / v-text
    if (parent) {
      nodeOps.removeChild(parent, el);
    }
  }

  var inPre = 0;
  function createElm (vnode, insertedVnodeQueue, parentElm, refElm, nested) {
    vnode.isRootInsert = !nested; // for transition enter check
    if (createComponent(vnode, insertedVnodeQueue, parentElm, refElm)) {
      return
    }

    var data = vnode.data;
    var children = vnode.children;
    var tag = vnode.tag;
    if (isDef(tag)) {
      {
        if (data && data.pre) {
          inPre++;
        }
        if (
          !inPre &&
          !vnode.ns &&
          !(config.ignoredElements.length && config.ignoredElements.indexOf(tag) > -1) &&
          config.isUnknownElement(tag)
        ) {
          warn(
            'Unknown custom element: <' + tag + '> - did you ' +
            'register the component correctly? For recursive components, ' +
            'make sure to provide the "name" option.',
            vnode.context
          );
        }
      }
      vnode.elm = vnode.ns
        ? nodeOps.createElementNS(vnode.ns, tag)
        : nodeOps.createElement(tag, vnode);
      setScope(vnode);

      /* istanbul ignore if */
      {
        createChildren(vnode, children, insertedVnodeQueue);
        if (isDef(data)) {
          invokeCreateHooks(vnode, insertedVnodeQueue);
        }
        insert(parentElm, vnode.elm, refElm);
      }

      if ("development" !== 'production' && data && data.pre) {
        inPre--;
      }
    } else if (vnode.isComment) {
      vnode.elm = nodeOps.createComment(vnode.text);
      insert(parentElm, vnode.elm, refElm);
    } else {
      vnode.elm = nodeOps.createTextNode(vnode.text);
      insert(parentElm, vnode.elm, refElm);
    }
  }

  function createComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
    var i = vnode.data;
    if (isDef(i)) {
      var isReactivated = isDef(vnode.componentInstance) && i.keepAlive;
      if (isDef(i = i.hook) && isDef(i = i.init)) {
        i(vnode, false /* hydrating */, parentElm, refElm);
      }
      // after calling the init hook, if the vnode is a child component
      // it should've created a child instance and mounted it. the child
      // component also has set the placeholder vnode's elm.
      // in that case we can just return the element and be done.
      if (isDef(vnode.componentInstance)) {
        initComponent(vnode, insertedVnodeQueue);
        if (isReactivated) {
          reactivateComponent(vnode, insertedVnodeQueue, parentElm, refElm);
        }
        return true
      }
    }
  }

  function initComponent (vnode, insertedVnodeQueue) {
    if (vnode.data.pendingInsert) {
      insertedVnodeQueue.push.apply(insertedVnodeQueue, vnode.data.pendingInsert);
    }
    vnode.elm = vnode.componentInstance.$el;
    if (isPatchable(vnode)) {
      invokeCreateHooks(vnode, insertedVnodeQueue);
      setScope(vnode);
    } else {
      // empty component root.
      // skip all element-related modules except for ref (#3455)
      registerRef(vnode);
      // make sure to invoke the insert hook
      insertedVnodeQueue.push(vnode);
    }
  }

  function reactivateComponent (vnode, insertedVnodeQueue, parentElm, refElm) {
    var i;
    // hack for #4339: a reactivated component with inner transition
    // does not trigger because the inner node's created hooks are not called
    // again. It's not ideal to involve module-specific logic in here but
    // there doesn't seem to be a better way to do it.
    var innerNode = vnode;
    while (innerNode.componentInstance) {
      innerNode = innerNode.componentInstance._vnode;
      if (isDef(i = innerNode.data) && isDef(i = i.transition)) {
        for (i = 0; i < cbs.activate.length; ++i) {
          cbs.activate[i](emptyNode, innerNode);
        }
        insertedVnodeQueue.push(innerNode);
        break
      }
    }
    // unlike a newly created component,
    // a reactivated keep-alive component doesn't insert itself
    insert(parentElm, vnode.elm, refElm);
  }

  function insert (parent, elm, ref) {
    if (parent) {
      if (ref) {
        nodeOps.insertBefore(parent, elm, ref);
      } else {
        nodeOps.appendChild(parent, elm);
      }
    }
  }

  function createChildren (vnode, children, insertedVnodeQueue) {
    if (Array.isArray(children)) {
      for (var i = 0; i < children.length; ++i) {
        createElm(children[i], insertedVnodeQueue, vnode.elm, null, true);
      }
    } else if (isPrimitive(vnode.text)) {
      nodeOps.appendChild(vnode.elm, nodeOps.createTextNode(vnode.text));
    }
  }

  function isPatchable (vnode) {
    while (vnode.componentInstance) {
      vnode = vnode.componentInstance._vnode;
    }
    return isDef(vnode.tag)
  }

  function invokeCreateHooks (vnode, insertedVnodeQueue) {
    for (var i$1 = 0; i$1 < cbs.create.length; ++i$1) {
      cbs.create[i$1](emptyNode, vnode);
    }
    i = vnode.data.hook; // Reuse variable
    if (isDef(i)) {
      if (i.create) { i.create(emptyNode, vnode); }
      if (i.insert) { insertedVnodeQueue.push(vnode); }
    }
  }

  // set scope id attribute for scoped CSS.
  // this is implemented as a special case to avoid the overhead
  // of going through the normal attribute patching process.
  function setScope (vnode) {
    var i;
    var ancestor = vnode;
    while (ancestor) {
      if (isDef(i = ancestor.context) && isDef(i = i.$options._scopeId)) {
        nodeOps.setAttribute(vnode.elm, i, '');
      }
      ancestor = ancestor.parent;
    }
    // for slot content they should also get the scopeId from the host instance.
    if (isDef(i = activeInstance) &&
        i !== vnode.context &&
        isDef(i = i.$options._scopeId)) {
      nodeOps.setAttribute(vnode.elm, i, '');
    }
  }

  function addVnodes (parentElm, refElm, vnodes, startIdx, endIdx, insertedVnodeQueue) {
    for (; startIdx <= endIdx; ++startIdx) {
      createElm(vnodes[startIdx], insertedVnodeQueue, parentElm, refElm);
    }
  }

  function invokeDestroyHook (vnode) {
    var i, j;
    var data = vnode.data;
    if (isDef(data)) {
      if (isDef(i = data.hook) && isDef(i = i.destroy)) { i(vnode); }
      for (i = 0; i < cbs.destroy.length; ++i) { cbs.destroy[i](vnode); }
    }
    if (isDef(i = vnode.children)) {
      for (j = 0; j < vnode.children.length; ++j) {
        invokeDestroyHook(vnode.children[j]);
      }
    }
  }

  function removeVnodes (parentElm, vnodes, startIdx, endIdx) {
    for (; startIdx <= endIdx; ++startIdx) {
      var ch = vnodes[startIdx];
      if (isDef(ch)) {
        if (isDef(ch.tag)) {
          removeAndInvokeRemoveHook(ch);
          invokeDestroyHook(ch);
        } else { // Text node
          removeNode(ch.elm);
        }
      }
    }
  }

  function removeAndInvokeRemoveHook (vnode, rm) {
    if (rm || isDef(vnode.data)) {
      var listeners = cbs.remove.length + 1;
      if (!rm) {
        // directly removing
        rm = createRmCb(vnode.elm, listeners);
      } else {
        // we have a recursively passed down rm callback
        // increase the listeners count
        rm.listeners += listeners;
      }
      // recursively invoke hooks on child component root node
      if (isDef(i = vnode.componentInstance) && isDef(i = i._vnode) && isDef(i.data)) {
        removeAndInvokeRemoveHook(i, rm);
      }
      for (i = 0; i < cbs.remove.length; ++i) {
        cbs.remove[i](vnode, rm);
      }
      if (isDef(i = vnode.data.hook) && isDef(i = i.remove)) {
        i(vnode, rm);
      } else {
        rm();
      }
    } else {
      removeNode(vnode.elm);
    }
  }

  function updateChildren (parentElm, oldCh, newCh, insertedVnodeQueue, removeOnly) {
    var oldStartIdx = 0;
    var newStartIdx = 0;
    var oldEndIdx = oldCh.length - 1;
    var oldStartVnode = oldCh[0];
    var oldEndVnode = oldCh[oldEndIdx];
    var newEndIdx = newCh.length - 1;
    var newStartVnode = newCh[0];
    var newEndVnode = newCh[newEndIdx];
    var oldKeyToIdx, idxInOld, elmToMove, refElm;

    // removeOnly is a special flag used only by <transition-group>
    // to ensure removed elements stay in correct relative positions
    // during leaving transitions
    var canMove = !removeOnly;

    while (oldStartIdx <= oldEndIdx && newStartIdx <= newEndIdx) {
      if (isUndef(oldStartVnode)) {
        oldStartVnode = oldCh[++oldStartIdx]; // Vnode has been moved left
      } else if (isUndef(oldEndVnode)) {
        oldEndVnode = oldCh[--oldEndIdx];
      } else if (sameVnode(oldStartVnode, newStartVnode)) {
        patchVnode(oldStartVnode, newStartVnode, insertedVnodeQueue);
        oldStartVnode = oldCh[++oldStartIdx];
        newStartVnode = newCh[++newStartIdx];
      } else if (sameVnode(oldEndVnode, newEndVnode)) {
        patchVnode(oldEndVnode, newEndVnode, insertedVnodeQueue);
        oldEndVnode = oldCh[--oldEndIdx];
        newEndVnode = newCh[--newEndIdx];
      } else if (sameVnode(oldStartVnode, newEndVnode)) { // Vnode moved right
        patchVnode(oldStartVnode, newEndVnode, insertedVnodeQueue);
        canMove && nodeOps.insertBefore(parentElm, oldStartVnode.elm, nodeOps.nextSibling(oldEndVnode.elm));
        oldStartVnode = oldCh[++oldStartIdx];
        newEndVnode = newCh[--newEndIdx];
      } else if (sameVnode(oldEndVnode, newStartVnode)) { // Vnode moved left
        patchVnode(oldEndVnode, newStartVnode, insertedVnodeQueue);
        canMove && nodeOps.insertBefore(parentElm, oldEndVnode.elm, oldStartVnode.elm);
        oldEndVnode = oldCh[--oldEndIdx];
        newStartVnode = newCh[++newStartIdx];
      } else {
        if (isUndef(oldKeyToIdx)) { oldKeyToIdx = createKeyToOldIdx(oldCh, oldStartIdx, oldEndIdx); }
        idxInOld = isDef(newStartVnode.key) ? oldKeyToIdx[newStartVnode.key] : null;
        if (isUndef(idxInOld)) { // New element
          createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
          newStartVnode = newCh[++newStartIdx];
        } else {
          elmToMove = oldCh[idxInOld];
          /* istanbul ignore if */
          if ("development" !== 'production' && !elmToMove) {
            warn(
              'It seems there are duplicate keys that is causing an update error. ' +
              'Make sure each v-for item has a unique key.'
            );
          }
          if (sameVnode(elmToMove, newStartVnode)) {
            patchVnode(elmToMove, newStartVnode, insertedVnodeQueue);
            oldCh[idxInOld] = undefined;
            canMove && nodeOps.insertBefore(parentElm, newStartVnode.elm, oldStartVnode.elm);
            newStartVnode = newCh[++newStartIdx];
          } else {
            // same key but different element. treat as new element
            createElm(newStartVnode, insertedVnodeQueue, parentElm, oldStartVnode.elm);
            newStartVnode = newCh[++newStartIdx];
          }
        }
      }
    }
    if (oldStartIdx > oldEndIdx) {
      refElm = isUndef(newCh[newEndIdx + 1]) ? null : newCh[newEndIdx + 1].elm;
      addVnodes(parentElm, refElm, newCh, newStartIdx, newEndIdx, insertedVnodeQueue);
    } else if (newStartIdx > newEndIdx) {
      removeVnodes(parentElm, oldCh, oldStartIdx, oldEndIdx);
    }
  }

  function patchVnode (oldVnode, vnode, insertedVnodeQueue, removeOnly) {
    if (oldVnode === vnode) {
      return
    }
    // reuse element for static trees.
    // note we only do this if the vnode is cloned -
    // if the new node is not cloned it means the render functions have been
    // reset by the hot-reload-api and we need to do a proper re-render.
    if (vnode.isStatic &&
        oldVnode.isStatic &&
        vnode.key === oldVnode.key &&
        (vnode.isCloned || vnode.isOnce)) {
      vnode.elm = oldVnode.elm;
      vnode.componentInstance = oldVnode.componentInstance;
      return
    }
    var i;
    var data = vnode.data;
    var hasData = isDef(data);
    if (hasData && isDef(i = data.hook) && isDef(i = i.prepatch)) {
      i(oldVnode, vnode);
    }
    var elm = vnode.elm = oldVnode.elm;
    var oldCh = oldVnode.children;
    var ch = vnode.children;
    if (hasData && isPatchable(vnode)) {
      for (i = 0; i < cbs.update.length; ++i) { cbs.update[i](oldVnode, vnode); }
      if (isDef(i = data.hook) && isDef(i = i.update)) { i(oldVnode, vnode); }
    }
    if (isUndef(vnode.text)) {
      if (isDef(oldCh) && isDef(ch)) {
        if (oldCh !== ch) { updateChildren(elm, oldCh, ch, insertedVnodeQueue, removeOnly); }
      } else if (isDef(ch)) {
        if (isDef(oldVnode.text)) { nodeOps.setTextContent(elm, ''); }
        addVnodes(elm, null, ch, 0, ch.length - 1, insertedVnodeQueue);
      } else if (isDef(oldCh)) {
        removeVnodes(elm, oldCh, 0, oldCh.length - 1);
      } else if (isDef(oldVnode.text)) {
        nodeOps.setTextContent(elm, '');
      }
    } else if (oldVnode.text !== vnode.text) {
      nodeOps.setTextContent(elm, vnode.text);
    }
    if (hasData) {
      if (isDef(i = data.hook) && isDef(i = i.postpatch)) { i(oldVnode, vnode); }
    }
  }

  function invokeInsertHook (vnode, queue, initial) {
    // delay insert hooks for component root nodes, invoke them after the
    // element is really inserted
    if (initial && vnode.parent) {
      vnode.parent.data.pendingInsert = queue;
    } else {
      for (var i = 0; i < queue.length; ++i) {
        queue[i].data.hook.insert(queue[i]);
      }
    }
  }

  var bailed = false;
  // list of modules that can skip create hook during hydration because they
  // are already rendered on the client or has no need for initialization
  var isRenderedModule = makeMap('attrs,style,class,staticClass,staticStyle,key');

  // Note: this is a browser-only function so we can assume elms are DOM nodes.
  function hydrate (elm, vnode, insertedVnodeQueue) {
    {
      if (!assertNodeMatch(elm, vnode)) {
        return false
      }
    }
    vnode.elm = elm;
    var tag = vnode.tag;
    var data = vnode.data;
    var children = vnode.children;
    if (isDef(data)) {
      if (isDef(i = data.hook) && isDef(i = i.init)) { i(vnode, true /* hydrating */); }
      if (isDef(i = vnode.componentInstance)) {
        // child component. it should have hydrated its own tree.
        initComponent(vnode, insertedVnodeQueue);
        return true
      }
    }
    if (isDef(tag)) {
      if (isDef(children)) {
        // empty element, allow client to pick up and populate children
        if (!elm.hasChildNodes()) {
          createChildren(vnode, children, insertedVnodeQueue);
        } else {
          var childrenMatch = true;
          var childNode = elm.firstChild;
          for (var i$1 = 0; i$1 < children.length; i$1++) {
            if (!childNode || !hydrate(childNode, children[i$1], insertedVnodeQueue)) {
              childrenMatch = false;
              break
            }
            childNode = childNode.nextSibling;
          }
          // if childNode is not null, it means the actual childNodes list is
          // longer than the virtual children list.
          if (!childrenMatch || childNode) {
            if ("development" !== 'production' &&
                typeof console !== 'undefined' &&
                !bailed) {
              bailed = true;
              console.warn('Parent: ', elm);
              console.warn('Mismatching childNodes vs. VNodes: ', elm.childNodes, children);
            }
            return false
          }
        }
      }
      if (isDef(data)) {
        for (var key in data) {
          if (!isRenderedModule(key)) {
            invokeCreateHooks(vnode, insertedVnodeQueue);
            break
          }
        }
      }
    } else if (elm.data !== vnode.text) {
      elm.data = vnode.text;
    }
    return true
  }

  function assertNodeMatch (node, vnode) {
    if (vnode.tag) {
      return (
        vnode.tag.indexOf('vue-component') === 0 ||
        vnode.tag.toLowerCase() === (node.tagName && node.tagName.toLowerCase())
      )
    } else {
      return node.nodeType === (vnode.isComment ? 8 : 3)
    }
  }

  return function patch (oldVnode, vnode, hydrating, removeOnly, parentElm, refElm) {
    if (!vnode) {
      if (oldVnode) { invokeDestroyHook(oldVnode); }
      return
    }

    var isInitialPatch = false;
    var insertedVnodeQueue = [];

    if (!oldVnode) {
      // empty mount (likely as component), create new root element
      isInitialPatch = true;
      createElm(vnode, insertedVnodeQueue, parentElm, refElm);
    } else {
      var isRealElement = isDef(oldVnode.nodeType);
      if (!isRealElement && sameVnode(oldVnode, vnode)) {
        // patch existing root node
        patchVnode(oldVnode, vnode, insertedVnodeQueue, removeOnly);
      } else {
        if (isRealElement) {
          // mounting to a real element
          // check if this is server-rendered content and if we can perform
          // a successful hydration.
          if (oldVnode.nodeType === 1 && oldVnode.hasAttribute('server-rendered')) {
            oldVnode.removeAttribute('server-rendered');
            hydrating = true;
          }
          if (hydrating) {
            if (hydrate(oldVnode, vnode, insertedVnodeQueue)) {
              invokeInsertHook(vnode, insertedVnodeQueue, true);
              return oldVnode
            } else {
              warn(
                'The client-side rendered virtual DOM tree is not matching ' +
                'server-rendered content. This is likely caused by incorrect ' +
                'HTML markup, for example nesting block-level elements inside ' +
                '<p>, or missing <tbody>. Bailing hydration and performing ' +
                'full client-side render.'
              );
            }
          }
          // either not server-rendered, or hydration failed.
          // create an empty node and replace it
          oldVnode = emptyNodeAt(oldVnode);
        }
        // replacing existing element
        var oldElm = oldVnode.elm;
        var parentElm$1 = nodeOps.parentNode(oldElm);
        createElm(
          vnode,
          insertedVnodeQueue,
          // extremely rare edge case: do not insert if old element is in a
          // leaving transition. Only happens when combining transition +
          // keep-alive + HOCs. (#4590)
          oldElm._leaveCb ? null : parentElm$1,
          nodeOps.nextSibling(oldElm)
        );

        if (vnode.parent) {
          // component root element replaced.
          // update parent placeholder node element, recursively
          var ancestor = vnode.parent;
          while (ancestor) {
            ancestor.elm = vnode.elm;
            ancestor = ancestor.parent;
          }
          if (isPatchable(vnode)) {
            for (var i = 0; i < cbs.create.length; ++i) {
              cbs.create[i](emptyNode, vnode.parent);
            }
          }
        }

        if (parentElm$1 !== null) {
          removeVnodes(parentElm$1, [oldVnode], 0, 0);
        } else if (isDef(oldVnode.tag)) {
          invokeDestroyHook(oldVnode);
        }
      }
    }

    invokeInsertHook(vnode, insertedVnodeQueue, isInitialPatch);
    return vnode.elm
  }
}

/*  */

var directives = {
  create: updateDirectives,
  update: updateDirectives,
  destroy: function unbindDirectives (vnode) {
    updateDirectives(vnode, emptyNode);
  }
};

function updateDirectives (oldVnode, vnode) {
  if (oldVnode.data.directives || vnode.data.directives) {
    _update(oldVnode, vnode);
  }
}

function _update (oldVnode, vnode) {
  var isCreate = oldVnode === emptyNode;
  var isDestroy = vnode === emptyNode;
  var oldDirs = normalizeDirectives$1(oldVnode.data.directives, oldVnode.context);
  var newDirs = normalizeDirectives$1(vnode.data.directives, vnode.context);

  var dirsWithInsert = [];
  var dirsWithPostpatch = [];

  var key, oldDir, dir;
  for (key in newDirs) {
    oldDir = oldDirs[key];
    dir = newDirs[key];
    if (!oldDir) {
      // new directive, bind
      callHook$1(dir, 'bind', vnode, oldVnode);
      if (dir.def && dir.def.inserted) {
        dirsWithInsert.push(dir);
      }
    } else {
      // existing directive, update
      dir.oldValue = oldDir.value;
      callHook$1(dir, 'update', vnode, oldVnode);
      if (dir.def && dir.def.componentUpdated) {
        dirsWithPostpatch.push(dir);
      }
    }
  }

  if (dirsWithInsert.length) {
    var callInsert = function () {
      for (var i = 0; i < dirsWithInsert.length; i++) {
        callHook$1(dirsWithInsert[i], 'inserted', vnode, oldVnode);
      }
    };
    if (isCreate) {
      mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', callInsert);
    } else {
      callInsert();
    }
  }

  if (dirsWithPostpatch.length) {
    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'postpatch', function () {
      for (var i = 0; i < dirsWithPostpatch.length; i++) {
        callHook$1(dirsWithPostpatch[i], 'componentUpdated', vnode, oldVnode);
      }
    });
  }

  if (!isCreate) {
    for (key in oldDirs) {
      if (!newDirs[key]) {
        // no longer present, unbind
        callHook$1(oldDirs[key], 'unbind', oldVnode, oldVnode, isDestroy);
      }
    }
  }
}

var emptyModifiers = Object.create(null);

function normalizeDirectives$1 (
  dirs,
  vm
) {
  var res = Object.create(null);
  if (!dirs) {
    return res
  }
  var i, dir;
  for (i = 0; i < dirs.length; i++) {
    dir = dirs[i];
    if (!dir.modifiers) {
      dir.modifiers = emptyModifiers;
    }
    res[getRawDirName(dir)] = dir;
    dir.def = resolveAsset(vm.$options, 'directives', dir.name, true);
  }
  return res
}

function getRawDirName (dir) {
  return dir.rawName || ((dir.name) + "." + (Object.keys(dir.modifiers || {}).join('.')))
}

function callHook$1 (dir, hook, vnode, oldVnode, isDestroy) {
  var fn = dir.def && dir.def[hook];
  if (fn) {
    fn(vnode.elm, dir, vnode, oldVnode, isDestroy);
  }
}

var baseModules = [
  ref,
  directives
];

/*  */

function updateAttrs (oldVnode, vnode) {
  if (!oldVnode.data.attrs && !vnode.data.attrs) {
    return
  }
  var key, cur, old;
  var elm = vnode.elm;
  var oldAttrs = oldVnode.data.attrs || {};
  var attrs = vnode.data.attrs || {};
  // clone observed objects, as the user probably wants to mutate it
  if (attrs.__ob__) {
    attrs = vnode.data.attrs = extend({}, attrs);
  }

  for (key in attrs) {
    cur = attrs[key];
    old = oldAttrs[key];
    if (old !== cur) {
      setAttr(elm, key, cur);
    }
  }
  // #4391: in IE9, setting type can reset value for input[type=radio]
  /* istanbul ignore if */
  if (isIE9 && attrs.value !== oldAttrs.value) {
    setAttr(elm, 'value', attrs.value);
  }
  for (key in oldAttrs) {
    if (attrs[key] == null) {
      if (isXlink(key)) {
        elm.removeAttributeNS(xlinkNS, getXlinkProp(key));
      } else if (!isEnumeratedAttr(key)) {
        elm.removeAttribute(key);
      }
    }
  }
}

function setAttr (el, key, value) {
  if (isBooleanAttr(key)) {
    // set attribute for blank value
    // e.g. <option disabled>Select one</option>
    if (isFalsyAttrValue(value)) {
      el.removeAttribute(key);
    } else {
      el.setAttribute(key, key);
    }
  } else if (isEnumeratedAttr(key)) {
    el.setAttribute(key, isFalsyAttrValue(value) || value === 'false' ? 'false' : 'true');
  } else if (isXlink(key)) {
    if (isFalsyAttrValue(value)) {
      el.removeAttributeNS(xlinkNS, getXlinkProp(key));
    } else {
      el.setAttributeNS(xlinkNS, key, value);
    }
  } else {
    if (isFalsyAttrValue(value)) {
      el.removeAttribute(key);
    } else {
      el.setAttribute(key, value);
    }
  }
}

var attrs = {
  create: updateAttrs,
  update: updateAttrs
};

/*  */

function updateClass (oldVnode, vnode) {
  var el = vnode.elm;
  var data = vnode.data;
  var oldData = oldVnode.data;
  if (!data.staticClass && !data.class &&
      (!oldData || (!oldData.staticClass && !oldData.class))) {
    return
  }

  var cls = genClassForVnode(vnode);

  // handle transition classes
  var transitionClass = el._transitionClasses;
  if (transitionClass) {
    cls = concat(cls, stringifyClass(transitionClass));
  }

  // set the class
  if (cls !== el._prevClass) {
    el.setAttribute('class', cls);
    el._prevClass = cls;
  }
}

var klass = {
  create: updateClass,
  update: updateClass
};

/*  */

var validDivisionCharRE = /[\w).+\-_$\]]/;

function parseFilters (exp) {
  var inSingle = false;
  var inDouble = false;
  var inTemplateString = false;
  var inRegex = false;
  var curly = 0;
  var square = 0;
  var paren = 0;
  var lastFilterIndex = 0;
  var c, prev, i, expression, filters;

  for (i = 0; i < exp.length; i++) {
    prev = c;
    c = exp.charCodeAt(i);
    if (inSingle) {
      if (c === 0x27 && prev !== 0x5C) { inSingle = false; }
    } else if (inDouble) {
      if (c === 0x22 && prev !== 0x5C) { inDouble = false; }
    } else if (inTemplateString) {
      if (c === 0x60 && prev !== 0x5C) { inTemplateString = false; }
    } else if (inRegex) {
      if (c === 0x2f && prev !== 0x5C) { inRegex = false; }
    } else if (
      c === 0x7C && // pipe
      exp.charCodeAt(i + 1) !== 0x7C &&
      exp.charCodeAt(i - 1) !== 0x7C &&
      !curly && !square && !paren
    ) {
      if (expression === undefined) {
        // first filter, end of expression
        lastFilterIndex = i + 1;
        expression = exp.slice(0, i).trim();
      } else {
        pushFilter();
      }
    } else {
      switch (c) {
        case 0x22: inDouble = true; break         // "
        case 0x27: inSingle = true; break         // '
        case 0x60: inTemplateString = true; break // `
        case 0x28: paren++; break                 // (
        case 0x29: paren--; break                 // )
        case 0x5B: square++; break                // [
        case 0x5D: square--; break                // ]
        case 0x7B: curly++; break                 // {
        case 0x7D: curly--; break                 // }
      }
      if (c === 0x2f) { // /
        var j = i - 1;
        var p = (void 0);
        // find first non-whitespace prev char
        for (; j >= 0; j--) {
          p = exp.charAt(j);
          if (p !== ' ') { break }
        }
        if (!p || !validDivisionCharRE.test(p)) {
          inRegex = true;
        }
      }
    }
  }

  if (expression === undefined) {
    expression = exp.slice(0, i).trim();
  } else if (lastFilterIndex !== 0) {
    pushFilter();
  }

  function pushFilter () {
    (filters || (filters = [])).push(exp.slice(lastFilterIndex, i).trim());
    lastFilterIndex = i + 1;
  }

  if (filters) {
    for (i = 0; i < filters.length; i++) {
      expression = wrapFilter(expression, filters[i]);
    }
  }

  return expression
}

function wrapFilter (exp, filter) {
  var i = filter.indexOf('(');
  if (i < 0) {
    // _f: resolveFilter
    return ("_f(\"" + filter + "\")(" + exp + ")")
  } else {
    var name = filter.slice(0, i);
    var args = filter.slice(i + 1);
    return ("_f(\"" + name + "\")(" + exp + "," + args)
  }
}

/*  */

function baseWarn (msg) {
  console.error(("[Vue compiler]: " + msg));
}

function pluckModuleFunction (
  modules,
  key
) {
  return modules
    ? modules.map(function (m) { return m[key]; }).filter(function (_) { return _; })
    : []
}

function addProp (el, name, value) {
  (el.props || (el.props = [])).push({ name: name, value: value });
}

function addAttr (el, name, value) {
  (el.attrs || (el.attrs = [])).push({ name: name, value: value });
}

function addDirective (
  el,
  name,
  rawName,
  value,
  arg,
  modifiers
) {
  (el.directives || (el.directives = [])).push({ name: name, rawName: rawName, value: value, arg: arg, modifiers: modifiers });
}

function addHandler (
  el,
  name,
  value,
  modifiers,
  important
) {
  // check capture modifier
  if (modifiers && modifiers.capture) {
    delete modifiers.capture;
    name = '!' + name; // mark the event as captured
  }
  if (modifiers && modifiers.once) {
    delete modifiers.once;
    name = '~' + name; // mark the event as once
  }
  var events;
  if (modifiers && modifiers.native) {
    delete modifiers.native;
    events = el.nativeEvents || (el.nativeEvents = {});
  } else {
    events = el.events || (el.events = {});
  }
  var newHandler = { value: value, modifiers: modifiers };
  var handlers = events[name];
  /* istanbul ignore if */
  if (Array.isArray(handlers)) {
    important ? handlers.unshift(newHandler) : handlers.push(newHandler);
  } else if (handlers) {
    events[name] = important ? [newHandler, handlers] : [handlers, newHandler];
  } else {
    events[name] = newHandler;
  }
}

function getBindingAttr (
  el,
  name,
  getStatic
) {
  var dynamicValue =
    getAndRemoveAttr(el, ':' + name) ||
    getAndRemoveAttr(el, 'v-bind:' + name);
  if (dynamicValue != null) {
    return parseFilters(dynamicValue)
  } else if (getStatic !== false) {
    var staticValue = getAndRemoveAttr(el, name);
    if (staticValue != null) {
      return JSON.stringify(staticValue)
    }
  }
}

function getAndRemoveAttr (el, name) {
  var val;
  if ((val = el.attrsMap[name]) != null) {
    var list = el.attrsList;
    for (var i = 0, l = list.length; i < l; i++) {
      if (list[i].name === name) {
        list.splice(i, 1);
        break
      }
    }
  }
  return val
}

/*  */

/**
 * Cross-platform code generation for component v-model
 */
function genComponentModel (
  el,
  value,
  modifiers
) {
  var ref = modifiers || {};
  var number = ref.number;
  var trim = ref.trim;

  var baseValueExpression = '$$v';
  var valueExpression = baseValueExpression;
  if (trim) {
    valueExpression =
      "(typeof " + baseValueExpression + " === 'string'" +
        "? " + baseValueExpression + ".trim()" +
        ": " + baseValueExpression + ")";
  }
  if (number) {
    valueExpression = "_n(" + valueExpression + ")";
  }
  var assignment = genAssignmentCode(value, valueExpression);

  el.model = {
    value: ("(" + value + ")"),
    callback: ("function (" + baseValueExpression + ") {" + assignment + "}")
  };
}

/**
 * Cross-platform codegen helper for generating v-model value assignment code.
 */
function genAssignmentCode (
  value,
  assignment
) {
  var modelRs = parseModel(value);
  if (modelRs.idx === null) {
    return (value + "=" + assignment)
  } else {
    return "var $$exp = " + (modelRs.exp) + ", $$idx = " + (modelRs.idx) + ";" +
      "if (!Array.isArray($$exp)){" +
        value + "=" + assignment + "}" +
      "else{$$exp.splice($$idx, 1, " + assignment + ")}"
  }
}

/**
 * parse directive model to do the array update transform. a[idx] = val => $$a.splice($$idx, 1, val)
 *
 * for loop possible cases:
 *
 * - test
 * - test[idx]
 * - test[test1[idx]]
 * - test["a"][idx]
 * - xxx.test[a[a].test1[idx]]
 * - test.xxx.a["asa"][test1[idx]]
 *
 */

var len;
var str;
var chr;
var index$1;
var expressionPos;
var expressionEndPos;

function parseModel (val) {
  str = val;
  len = str.length;
  index$1 = expressionPos = expressionEndPos = 0;

  if (val.indexOf('[') < 0 || val.lastIndexOf(']') < len - 1) {
    return {
      exp: val,
      idx: null
    }
  }

  while (!eof()) {
    chr = next();
    /* istanbul ignore if */
    if (isStringStart(chr)) {
      parseString(chr);
    } else if (chr === 0x5B) {
      parseBracket(chr);
    }
  }

  return {
    exp: val.substring(0, expressionPos),
    idx: val.substring(expressionPos + 1, expressionEndPos)
  }
}

function next () {
  return str.charCodeAt(++index$1)
}

function eof () {
  return index$1 >= len
}

function isStringStart (chr) {
  return chr === 0x22 || chr === 0x27
}

function parseBracket (chr) {
  var inBracket = 1;
  expressionPos = index$1;
  while (!eof()) {
    chr = next();
    if (isStringStart(chr)) {
      parseString(chr);
      continue
    }
    if (chr === 0x5B) { inBracket++; }
    if (chr === 0x5D) { inBracket--; }
    if (inBracket === 0) {
      expressionEndPos = index$1;
      break
    }
  }
}

function parseString (chr) {
  var stringQuote = chr;
  while (!eof()) {
    chr = next();
    if (chr === stringQuote) {
      break
    }
  }
}

/*  */

var warn$1;

// in some cases, the event used has to be determined at runtime
// so we used some reserved tokens during compile.
var RANGE_TOKEN = '__r';
var CHECKBOX_RADIO_TOKEN = '__c';

function model (
  el,
  dir,
  _warn
) {
  warn$1 = _warn;
  var value = dir.value;
  var modifiers = dir.modifiers;
  var tag = el.tag;
  var type = el.attrsMap.type;

  {
    var dynamicType = el.attrsMap['v-bind:type'] || el.attrsMap[':type'];
    if (tag === 'input' && dynamicType) {
      warn$1(
        "<input :type=\"" + dynamicType + "\" v-model=\"" + value + "\">:\n" +
        "v-model does not support dynamic input types. Use v-if branches instead."
      );
    }
    // inputs with type="file" are read only and setting the input's
    // value will throw an error.
    if (tag === 'input' && type === 'file') {
      warn$1(
        "<" + (el.tag) + " v-model=\"" + value + "\" type=\"file\">:\n" +
        "File inputs are read only. Use a v-on:change listener instead."
      );
    }
  }

  if (tag === 'select') {
    genSelect(el, value, modifiers);
  } else if (tag === 'input' && type === 'checkbox') {
    genCheckboxModel(el, value, modifiers);
  } else if (tag === 'input' && type === 'radio') {
    genRadioModel(el, value, modifiers);
  } else if (tag === 'input' || tag === 'textarea') {
    genDefaultModel(el, value, modifiers);
  } else if (!config.isReservedTag(tag)) {
    genComponentModel(el, value, modifiers);
    // component v-model doesn't need extra runtime
    return false
  } else {
    warn$1(
      "<" + (el.tag) + " v-model=\"" + value + "\">: " +
      "v-model is not supported on this element type. " +
      'If you are working with contenteditable, it\'s recommended to ' +
      'wrap a library dedicated for that purpose inside a custom component.'
    );
  }

  // ensure runtime directive metadata
  return true
}

function genCheckboxModel (
  el,
  value,
  modifiers
) {
  if ("development" !== 'production' &&
    el.attrsMap.checked != null) {
    warn$1(
      "<" + (el.tag) + " v-model=\"" + value + "\" checked>:\n" +
      "inline checked attributes will be ignored when using v-model. " +
      'Declare initial values in the component\'s data option instead.'
    );
  }
  var number = modifiers && modifiers.number;
  var valueBinding = getBindingAttr(el, 'value') || 'null';
  var trueValueBinding = getBindingAttr(el, 'true-value') || 'true';
  var falseValueBinding = getBindingAttr(el, 'false-value') || 'false';
  addProp(el, 'checked',
    "Array.isArray(" + value + ")" +
      "?_i(" + value + "," + valueBinding + ")>-1" + (
        trueValueBinding === 'true'
          ? (":(" + value + ")")
          : (":_q(" + value + "," + trueValueBinding + ")")
      )
  );
  addHandler(el, CHECKBOX_RADIO_TOKEN,
    "var $$a=" + value + "," +
        '$$el=$event.target,' +
        "$$c=$$el.checked?(" + trueValueBinding + "):(" + falseValueBinding + ");" +
    'if(Array.isArray($$a)){' +
      "var $$v=" + (number ? '_n(' + valueBinding + ')' : valueBinding) + "," +
          '$$i=_i($$a,$$v);' +
      "if($$c){$$i<0&&(" + value + "=$$a.concat($$v))}" +
      "else{$$i>-1&&(" + value + "=$$a.slice(0,$$i).concat($$a.slice($$i+1)))}" +
    "}else{" + value + "=$$c}",
    null, true
  );
}

function genRadioModel (
    el,
    value,
    modifiers
) {
  if ("development" !== 'production' &&
    el.attrsMap.checked != null) {
    warn$1(
      "<" + (el.tag) + " v-model=\"" + value + "\" checked>:\n" +
      "inline checked attributes will be ignored when using v-model. " +
      'Declare initial values in the component\'s data option instead.'
    );
  }
  var number = modifiers && modifiers.number;
  var valueBinding = getBindingAttr(el, 'value') || 'null';
  valueBinding = number ? ("_n(" + valueBinding + ")") : valueBinding;
  addProp(el, 'checked', ("_q(" + value + "," + valueBinding + ")"));
  addHandler(el, CHECKBOX_RADIO_TOKEN, genAssignmentCode(value, valueBinding), null, true);
}

function genSelect (
    el,
    value,
    modifiers
) {
  {
    el.children.some(checkOptionWarning);
  }

  var number = modifiers && modifiers.number;
  var selectedVal = "Array.prototype.filter" +
    ".call($event.target.options,function(o){return o.selected})" +
    ".map(function(o){var val = \"_value\" in o ? o._value : o.value;" +
    "return " + (number ? '_n(val)' : 'val') + "})";

  var assignment = '$event.target.multiple ? $$selectedVal : $$selectedVal[0]';
  var code = "var $$selectedVal = " + selectedVal + ";";
  code = code + " " + (genAssignmentCode(value, assignment));
  addHandler(el, 'change', code, null, true);
}

function checkOptionWarning (option) {
  if (option.type === 1 &&
    option.tag === 'option' &&
    option.attrsMap.selected != null) {
    warn$1(
      "<select v-model=\"" + (option.parent.attrsMap['v-model']) + "\">:\n" +
      'inline selected attributes on <option> will be ignored when using v-model. ' +
      'Declare initial values in the component\'s data option instead.'
    );
    return true
  }
  return false
}

function genDefaultModel (
  el,
  value,
  modifiers
) {
  var type = el.attrsMap.type;
  var ref = modifiers || {};
  var lazy = ref.lazy;
  var number = ref.number;
  var trim = ref.trim;
  var needCompositionGuard = !lazy && type !== 'range';
  var event = lazy
    ? 'change'
    : type === 'range'
      ? RANGE_TOKEN
      : 'input';

  var valueExpression = '$event.target.value';
  if (trim) {
    valueExpression = "$event.target.value.trim()";
  }
  if (number) {
    valueExpression = "_n(" + valueExpression + ")";
  }

  var code = genAssignmentCode(value, valueExpression);
  if (needCompositionGuard) {
    code = "if($event.target.composing)return;" + code;
  }

  addProp(el, 'value', ("(" + value + ")"));
  addHandler(el, event, code, null, true);
  if (trim || number || type === 'number') {
    addHandler(el, 'blur', '$forceUpdate()');
  }
}

/*  */

// normalize v-model event tokens that can only be determined at runtime.
// it's important to place the event as the first in the array because
// the whole point is ensuring the v-model callback gets called before
// user-attached handlers.
function normalizeEvents (on) {
  var event;
  /* istanbul ignore if */
  if (on[RANGE_TOKEN]) {
    // IE input[type=range] only supports `change` event
    event = isIE ? 'change' : 'input';
    on[event] = [].concat(on[RANGE_TOKEN], on[event] || []);
    delete on[RANGE_TOKEN];
  }
  if (on[CHECKBOX_RADIO_TOKEN]) {
    // Chrome fires microtasks in between click/change, leads to #4521
    event = isChrome ? 'click' : 'change';
    on[event] = [].concat(on[CHECKBOX_RADIO_TOKEN], on[event] || []);
    delete on[CHECKBOX_RADIO_TOKEN];
  }
}

var target$1;

function add$1 (
  event,
  handler,
  once,
  capture
) {
  if (once) {
    var oldHandler = handler;
    var _target = target$1; // save current target element in closure
    handler = function (ev) {
      var res = arguments.length === 1
        ? oldHandler(ev)
        : oldHandler.apply(null, arguments);
      if (res !== null) {
        remove$2(event, handler, capture, _target);
      }
    };
  }
  target$1.addEventListener(event, handler, capture);
}

function remove$2 (
  event,
  handler,
  capture,
  _target
) {
  (_target || target$1).removeEventListener(event, handler, capture);
}

function updateDOMListeners (oldVnode, vnode) {
  if (!oldVnode.data.on && !vnode.data.on) {
    return
  }
  var on = vnode.data.on || {};
  var oldOn = oldVnode.data.on || {};
  target$1 = vnode.elm;
  normalizeEvents(on);
  updateListeners(on, oldOn, add$1, remove$2, vnode.context);
}

var events = {
  create: updateDOMListeners,
  update: updateDOMListeners
};

/*  */

function updateDOMProps (oldVnode, vnode) {
  if (!oldVnode.data.domProps && !vnode.data.domProps) {
    return
  }
  var key, cur;
  var elm = vnode.elm;
  var oldProps = oldVnode.data.domProps || {};
  var props = vnode.data.domProps || {};
  // clone observed objects, as the user probably wants to mutate it
  if (props.__ob__) {
    props = vnode.data.domProps = extend({}, props);
  }

  for (key in oldProps) {
    if (props[key] == null) {
      elm[key] = '';
    }
  }
  for (key in props) {
    cur = props[key];
    // ignore children if the node has textContent or innerHTML,
    // as these will throw away existing DOM nodes and cause removal errors
    // on subsequent patches (#3360)
    if (key === 'textContent' || key === 'innerHTML') {
      if (vnode.children) { vnode.children.length = 0; }
      if (cur === oldProps[key]) { continue }
    }

    if (key === 'value') {
      // store value as _value as well since
      // non-string values will be stringified
      elm._value = cur;
      // avoid resetting cursor position when value is the same
      var strCur = cur == null ? '' : String(cur);
      if (shouldUpdateValue(elm, vnode, strCur)) {
        elm.value = strCur;
      }
    } else {
      elm[key] = cur;
    }
  }
}

// check platforms/web/util/attrs.js acceptValue


function shouldUpdateValue (
  elm,
  vnode,
  checkVal
) {
  return (!elm.composing && (
    vnode.tag === 'option' ||
    isDirty(elm, checkVal) ||
    isInputChanged(elm, checkVal)
  ))
}

function isDirty (elm, checkVal) {
  // return true when textbox (.number and .trim) loses focus and its value is not equal to the updated value
  return document.activeElement !== elm && elm.value !== checkVal
}

function isInputChanged (elm, newVal) {
  var value = elm.value;
  var modifiers = elm._vModifiers; // injected by v-model runtime
  if ((modifiers && modifiers.number) || elm.type === 'number') {
    return toNumber(value) !== toNumber(newVal)
  }
  if (modifiers && modifiers.trim) {
    return value.trim() !== newVal.trim()
  }
  return value !== newVal
}

var domProps = {
  create: updateDOMProps,
  update: updateDOMProps
};

/*  */

var parseStyleText = cached(function (cssText) {
  var res = {};
  var listDelimiter = /;(?![^(]*\))/g;
  var propertyDelimiter = /:(.+)/;
  cssText.split(listDelimiter).forEach(function (item) {
    if (item) {
      var tmp = item.split(propertyDelimiter);
      tmp.length > 1 && (res[tmp[0].trim()] = tmp[1].trim());
    }
  });
  return res
});

// merge static and dynamic style data on the same vnode
function normalizeStyleData (data) {
  var style = normalizeStyleBinding(data.style);
  // static style is pre-processed into an object during compilation
  // and is always a fresh object, so it's safe to merge into it
  return data.staticStyle
    ? extend(data.staticStyle, style)
    : style
}

// normalize possible array / string values into Object
function normalizeStyleBinding (bindingStyle) {
  if (Array.isArray(bindingStyle)) {
    return toObject(bindingStyle)
  }
  if (typeof bindingStyle === 'string') {
    return parseStyleText(bindingStyle)
  }
  return bindingStyle
}

/**
 * parent component style should be after child's
 * so that parent component's style could override it
 */
function getStyle (vnode, checkChild) {
  var res = {};
  var styleData;

  if (checkChild) {
    var childNode = vnode;
    while (childNode.componentInstance) {
      childNode = childNode.componentInstance._vnode;
      if (childNode.data && (styleData = normalizeStyleData(childNode.data))) {
        extend(res, styleData);
      }
    }
  }

  if ((styleData = normalizeStyleData(vnode.data))) {
    extend(res, styleData);
  }

  var parentNode = vnode;
  while ((parentNode = parentNode.parent)) {
    if (parentNode.data && (styleData = normalizeStyleData(parentNode.data))) {
      extend(res, styleData);
    }
  }
  return res
}

/*  */

var cssVarRE = /^--/;
var importantRE = /\s*!important$/;
var setProp = function (el, name, val) {
  /* istanbul ignore if */
  if (cssVarRE.test(name)) {
    el.style.setProperty(name, val);
  } else if (importantRE.test(val)) {
    el.style.setProperty(name, val.replace(importantRE, ''), 'important');
  } else {
    el.style[normalize(name)] = val;
  }
};

var prefixes = ['Webkit', 'Moz', 'ms'];

var testEl;
var normalize = cached(function (prop) {
  testEl = testEl || document.createElement('div');
  prop = camelize(prop);
  if (prop !== 'filter' && (prop in testEl.style)) {
    return prop
  }
  var upper = prop.charAt(0).toUpperCase() + prop.slice(1);
  for (var i = 0; i < prefixes.length; i++) {
    var prefixed = prefixes[i] + upper;
    if (prefixed in testEl.style) {
      return prefixed
    }
  }
});

function updateStyle (oldVnode, vnode) {
  var data = vnode.data;
  var oldData = oldVnode.data;

  if (!data.staticStyle && !data.style &&
      !oldData.staticStyle && !oldData.style) {
    return
  }

  var cur, name;
  var el = vnode.elm;
  var oldStaticStyle = oldVnode.data.staticStyle;
  var oldStyleBinding = oldVnode.data.style || {};

  // if static style exists, stylebinding already merged into it when doing normalizeStyleData
  var oldStyle = oldStaticStyle || oldStyleBinding;

  var style = normalizeStyleBinding(vnode.data.style) || {};

  vnode.data.style = style.__ob__ ? extend({}, style) : style;

  var newStyle = getStyle(vnode, true);

  for (name in oldStyle) {
    if (newStyle[name] == null) {
      setProp(el, name, '');
    }
  }
  for (name in newStyle) {
    cur = newStyle[name];
    if (cur !== oldStyle[name]) {
      // ie9 setting to null has no effect, must use empty string
      setProp(el, name, cur == null ? '' : cur);
    }
  }
}

var style = {
  create: updateStyle,
  update: updateStyle
};

/*  */

/**
 * Add class with compatibility for SVG since classList is not supported on
 * SVG elements in IE
 */
function addClass (el, cls) {
  /* istanbul ignore if */
  if (!cls || !(cls = cls.trim())) {
    return
  }

  /* istanbul ignore else */
  if (el.classList) {
    if (cls.indexOf(' ') > -1) {
      cls.split(/\s+/).forEach(function (c) { return el.classList.add(c); });
    } else {
      el.classList.add(cls);
    }
  } else {
    var cur = " " + (el.getAttribute('class') || '') + " ";
    if (cur.indexOf(' ' + cls + ' ') < 0) {
      el.setAttribute('class', (cur + cls).trim());
    }
  }
}

/**
 * Remove class with compatibility for SVG since classList is not supported on
 * SVG elements in IE
 */
function removeClass (el, cls) {
  /* istanbul ignore if */
  if (!cls || !(cls = cls.trim())) {
    return
  }

  /* istanbul ignore else */
  if (el.classList) {
    if (cls.indexOf(' ') > -1) {
      cls.split(/\s+/).forEach(function (c) { return el.classList.remove(c); });
    } else {
      el.classList.remove(cls);
    }
  } else {
    var cur = " " + (el.getAttribute('class') || '') + " ";
    var tar = ' ' + cls + ' ';
    while (cur.indexOf(tar) >= 0) {
      cur = cur.replace(tar, ' ');
    }
    el.setAttribute('class', cur.trim());
  }
}

/*  */

function resolveTransition (def$$1) {
  if (!def$$1) {
    return
  }
  /* istanbul ignore else */
  if (typeof def$$1 === 'object') {
    var res = {};
    if (def$$1.css !== false) {
      extend(res, autoCssTransition(def$$1.name || 'v'));
    }
    extend(res, def$$1);
    return res
  } else if (typeof def$$1 === 'string') {
    return autoCssTransition(def$$1)
  }
}

var autoCssTransition = cached(function (name) {
  return {
    enterClass: (name + "-enter"),
    enterToClass: (name + "-enter-to"),
    enterActiveClass: (name + "-enter-active"),
    leaveClass: (name + "-leave"),
    leaveToClass: (name + "-leave-to"),
    leaveActiveClass: (name + "-leave-active")
  }
});

var hasTransition = inBrowser && !isIE9;
var TRANSITION = 'transition';
var ANIMATION = 'animation';

// Transition property/event sniffing
var transitionProp = 'transition';
var transitionEndEvent = 'transitionend';
var animationProp = 'animation';
var animationEndEvent = 'animationend';
if (hasTransition) {
  /* istanbul ignore if */
  if (window.ontransitionend === undefined &&
    window.onwebkittransitionend !== undefined) {
    transitionProp = 'WebkitTransition';
    transitionEndEvent = 'webkitTransitionEnd';
  }
  if (window.onanimationend === undefined &&
    window.onwebkitanimationend !== undefined) {
    animationProp = 'WebkitAnimation';
    animationEndEvent = 'webkitAnimationEnd';
  }
}

// binding to window is necessary to make hot reload work in IE in strict mode
var raf = inBrowser && window.requestAnimationFrame
  ? window.requestAnimationFrame.bind(window)
  : setTimeout;

function nextFrame (fn) {
  raf(function () {
    raf(fn);
  });
}

function addTransitionClass (el, cls) {
  (el._transitionClasses || (el._transitionClasses = [])).push(cls);
  addClass(el, cls);
}

function removeTransitionClass (el, cls) {
  if (el._transitionClasses) {
    remove(el._transitionClasses, cls);
  }
  removeClass(el, cls);
}

function whenTransitionEnds (
  el,
  expectedType,
  cb
) {
  var ref = getTransitionInfo(el, expectedType);
  var type = ref.type;
  var timeout = ref.timeout;
  var propCount = ref.propCount;
  if (!type) { return cb() }
  var event = type === TRANSITION ? transitionEndEvent : animationEndEvent;
  var ended = 0;
  var end = function () {
    el.removeEventListener(event, onEnd);
    cb();
  };
  var onEnd = function (e) {
    if (e.target === el) {
      if (++ended >= propCount) {
        end();
      }
    }
  };
  setTimeout(function () {
    if (ended < propCount) {
      end();
    }
  }, timeout + 1);
  el.addEventListener(event, onEnd);
}

var transformRE = /\b(transform|all)(,|$)/;

function getTransitionInfo (el, expectedType) {
  var styles = window.getComputedStyle(el);
  var transitioneDelays = styles[transitionProp + 'Delay'].split(', ');
  var transitionDurations = styles[transitionProp + 'Duration'].split(', ');
  var transitionTimeout = getTimeout(transitioneDelays, transitionDurations);
  var animationDelays = styles[animationProp + 'Delay'].split(', ');
  var animationDurations = styles[animationProp + 'Duration'].split(', ');
  var animationTimeout = getTimeout(animationDelays, animationDurations);

  var type;
  var timeout = 0;
  var propCount = 0;
  /* istanbul ignore if */
  if (expectedType === TRANSITION) {
    if (transitionTimeout > 0) {
      type = TRANSITION;
      timeout = transitionTimeout;
      propCount = transitionDurations.length;
    }
  } else if (expectedType === ANIMATION) {
    if (animationTimeout > 0) {
      type = ANIMATION;
      timeout = animationTimeout;
      propCount = animationDurations.length;
    }
  } else {
    timeout = Math.max(transitionTimeout, animationTimeout);
    type = timeout > 0
      ? transitionTimeout > animationTimeout
        ? TRANSITION
        : ANIMATION
      : null;
    propCount = type
      ? type === TRANSITION
        ? transitionDurations.length
        : animationDurations.length
      : 0;
  }
  var hasTransform =
    type === TRANSITION &&
    transformRE.test(styles[transitionProp + 'Property']);
  return {
    type: type,
    timeout: timeout,
    propCount: propCount,
    hasTransform: hasTransform
  }
}

function getTimeout (delays, durations) {
  /* istanbul ignore next */
  while (delays.length < durations.length) {
    delays = delays.concat(delays);
  }

  return Math.max.apply(null, durations.map(function (d, i) {
    return toMs(d) + toMs(delays[i])
  }))
}

function toMs (s) {
  return Number(s.slice(0, -1)) * 1000
}

/*  */

function enter (vnode, toggleDisplay) {
  var el = vnode.elm;

  // call leave callback now
  if (el._leaveCb) {
    el._leaveCb.cancelled = true;
    el._leaveCb();
  }

  var data = resolveTransition(vnode.data.transition);
  if (!data) {
    return
  }

  /* istanbul ignore if */
  if (el._enterCb || el.nodeType !== 1) {
    return
  }

  var css = data.css;
  var type = data.type;
  var enterClass = data.enterClass;
  var enterToClass = data.enterToClass;
  var enterActiveClass = data.enterActiveClass;
  var appearClass = data.appearClass;
  var appearToClass = data.appearToClass;
  var appearActiveClass = data.appearActiveClass;
  var beforeEnter = data.beforeEnter;
  var enter = data.enter;
  var afterEnter = data.afterEnter;
  var enterCancelled = data.enterCancelled;
  var beforeAppear = data.beforeAppear;
  var appear = data.appear;
  var afterAppear = data.afterAppear;
  var appearCancelled = data.appearCancelled;
  var duration = data.duration;

  // activeInstance will always be the <transition> component managing this
  // transition. One edge case to check is when the <transition> is placed
  // as the root node of a child component. In that case we need to check
  // <transition>'s parent for appear check.
  var context = activeInstance;
  var transitionNode = activeInstance.$vnode;
  while (transitionNode && transitionNode.parent) {
    transitionNode = transitionNode.parent;
    context = transitionNode.context;
  }

  var isAppear = !context._isMounted || !vnode.isRootInsert;

  if (isAppear && !appear && appear !== '') {
    return
  }

  var startClass = isAppear && appearClass
    ? appearClass
    : enterClass;
  var activeClass = isAppear && appearActiveClass
    ? appearActiveClass
    : enterActiveClass;
  var toClass = isAppear && appearToClass
    ? appearToClass
    : enterToClass;

  var beforeEnterHook = isAppear
    ? (beforeAppear || beforeEnter)
    : beforeEnter;
  var enterHook = isAppear
    ? (typeof appear === 'function' ? appear : enter)
    : enter;
  var afterEnterHook = isAppear
    ? (afterAppear || afterEnter)
    : afterEnter;
  var enterCancelledHook = isAppear
    ? (appearCancelled || enterCancelled)
    : enterCancelled;

  var explicitEnterDuration = toNumber(
    isObject(duration)
      ? duration.enter
      : duration
  );

  if ("development" !== 'production' && explicitEnterDuration != null) {
    checkDuration(explicitEnterDuration, 'enter', vnode);
  }

  var expectsCSS = css !== false && !isIE9;
  var userWantsControl = getHookAgumentsLength(enterHook);

  var cb = el._enterCb = once(function () {
    if (expectsCSS) {
      removeTransitionClass(el, toClass);
      removeTransitionClass(el, activeClass);
    }
    if (cb.cancelled) {
      if (expectsCSS) {
        removeTransitionClass(el, startClass);
      }
      enterCancelledHook && enterCancelledHook(el);
    } else {
      afterEnterHook && afterEnterHook(el);
    }
    el._enterCb = null;
  });

  if (!vnode.data.show) {
    // remove pending leave element on enter by injecting an insert hook
    mergeVNodeHook(vnode.data.hook || (vnode.data.hook = {}), 'insert', function () {
      var parent = el.parentNode;
      var pendingNode = parent && parent._pending && parent._pending[vnode.key];
      if (pendingNode &&
          pendingNode.tag === vnode.tag &&
          pendingNode.elm._leaveCb) {
        pendingNode.elm._leaveCb();
      }
      enterHook && enterHook(el, cb);
    });
  }

  // start enter transition
  beforeEnterHook && beforeEnterHook(el);
  if (expectsCSS) {
    addTransitionClass(el, startClass);
    addTransitionClass(el, activeClass);
    nextFrame(function () {
      addTransitionClass(el, toClass);
      removeTransitionClass(el, startClass);
      if (!cb.cancelled && !userWantsControl) {
        if (isValidDuration(explicitEnterDuration)) {
          setTimeout(cb, explicitEnterDuration);
        } else {
          whenTransitionEnds(el, type, cb);
        }
      }
    });
  }

  if (vnode.data.show) {
    toggleDisplay && toggleDisplay();
    enterHook && enterHook(el, cb);
  }

  if (!expectsCSS && !userWantsControl) {
    cb();
  }
}

function leave (vnode, rm) {
  var el = vnode.elm;

  // call enter callback now
  if (el._enterCb) {
    el._enterCb.cancelled = true;
    el._enterCb();
  }

  var data = resolveTransition(vnode.data.transition);
  if (!data) {
    return rm()
  }

  /* istanbul ignore if */
  if (el._leaveCb || el.nodeType !== 1) {
    return
  }

  var css = data.css;
  var type = data.type;
  var leaveClass = data.leaveClass;
  var leaveToClass = data.leaveToClass;
  var leaveActiveClass = data.leaveActiveClass;
  var beforeLeave = data.beforeLeave;
  var leave = data.leave;
  var afterLeave = data.afterLeave;
  var leaveCancelled = data.leaveCancelled;
  var delayLeave = data.delayLeave;
  var duration = data.duration;

  var expectsCSS = css !== false && !isIE9;
  var userWantsControl = getHookAgumentsLength(leave);

  var explicitLeaveDuration = toNumber(
    isObject(duration)
      ? duration.leave
      : duration
  );

  if ("development" !== 'production' && explicitLeaveDuration != null) {
    checkDuration(explicitLeaveDuration, 'leave', vnode);
  }

  var cb = el._leaveCb = once(function () {
    if (el.parentNode && el.parentNode._pending) {
      el.parentNode._pending[vnode.key] = null;
    }
    if (expectsCSS) {
      removeTransitionClass(el, leaveToClass);
      removeTransitionClass(el, leaveActiveClass);
    }
    if (cb.cancelled) {
      if (expectsCSS) {
        removeTransitionClass(el, leaveClass);
      }
      leaveCancelled && leaveCancelled(el);
    } else {
      rm();
      afterLeave && afterLeave(el);
    }
    el._leaveCb = null;
  });

  if (delayLeave) {
    delayLeave(performLeave);
  } else {
    performLeave();
  }

  function performLeave () {
    // the delayed leave may have already been cancelled
    if (cb.cancelled) {
      return
    }
    // record leaving element
    if (!vnode.data.show) {
      (el.parentNode._pending || (el.parentNode._pending = {}))[vnode.key] = vnode;
    }
    beforeLeave && beforeLeave(el);
    if (expectsCSS) {
      addTransitionClass(el, leaveClass);
      addTransitionClass(el, leaveActiveClass);
      nextFrame(function () {
        addTransitionClass(el, leaveToClass);
        removeTransitionClass(el, leaveClass);
        if (!cb.cancelled && !userWantsControl) {
          if (isValidDuration(explicitLeaveDuration)) {
            setTimeout(cb, explicitLeaveDuration);
          } else {
            whenTransitionEnds(el, type, cb);
          }
        }
      });
    }
    leave && leave(el, cb);
    if (!expectsCSS && !userWantsControl) {
      cb();
    }
  }
}

// only used in dev mode
function checkDuration (val, name, vnode) {
  if (typeof val !== 'number') {
    warn(
      "<transition> explicit " + name + " duration is not a valid number - " +
      "got " + (JSON.stringify(val)) + ".",
      vnode.context
    );
  } else if (isNaN(val)) {
    warn(
      "<transition> explicit " + name + " duration is NaN - " +
      'the duration expression might be incorrect.',
      vnode.context
    );
  }
}

function isValidDuration (val) {
  return typeof val === 'number' && !isNaN(val)
}

/**
 * Normalize a transition hook's argument length. The hook may be:
 * - a merged hook (invoker) with the original in .fns
 * - a wrapped component method (check ._length)
 * - a plain function (.length)
 */
function getHookAgumentsLength (fn) {
  if (!fn) { return false }
  var invokerFns = fn.fns;
  if (invokerFns) {
    // invoker
    return getHookAgumentsLength(
      Array.isArray(invokerFns)
        ? invokerFns[0]
        : invokerFns
    )
  } else {
    return (fn._length || fn.length) > 1
  }
}

function _enter (_, vnode) {
  if (!vnode.data.show) {
    enter(vnode);
  }
}

var transition = inBrowser ? {
  create: _enter,
  activate: _enter,
  remove: function remove$$1 (vnode, rm) {
    /* istanbul ignore else */
    if (!vnode.data.show) {
      leave(vnode, rm);
    } else {
      rm();
    }
  }
} : {};

var platformModules = [
  attrs,
  klass,
  events,
  domProps,
  style,
  transition
];

/*  */

// the directive module should be applied last, after all
// built-in modules have been applied.
var modules = platformModules.concat(baseModules);

var patch = createPatchFunction({ nodeOps: nodeOps, modules: modules });

/**
 * Not type checking this file because flow doesn't like attaching
 * properties to Elements.
 */

/* istanbul ignore if */
if (isIE9) {
  // http://www.matts411.com/post/internet-explorer-9-oninput/
  document.addEventListener('selectionchange', function () {
    var el = document.activeElement;
    if (el && el.vmodel) {
      trigger(el, 'input');
    }
  });
}

var model$1 = {
  inserted: function inserted (el, binding, vnode) {
    if (vnode.tag === 'select') {
      var cb = function () {
        setSelected(el, binding, vnode.context);
      };
      cb();
      /* istanbul ignore if */
      if (isIE || isEdge) {
        setTimeout(cb, 0);
      }
    } else if (vnode.tag === 'textarea' || el.type === 'text') {
      el._vModifiers = binding.modifiers;
      if (!binding.modifiers.lazy) {
        if (!isAndroid) {
          el.addEventListener('compositionstart', onCompositionStart);
          el.addEventListener('compositionend', onCompositionEnd);
        }
        /* istanbul ignore if */
        if (isIE9) {
          el.vmodel = true;
        }
      }
    }
  },
  componentUpdated: function componentUpdated (el, binding, vnode) {
    if (vnode.tag === 'select') {
      setSelected(el, binding, vnode.context);
      // in case the options rendered by v-for have changed,
      // it's possible that the value is out-of-sync with the rendered options.
      // detect such cases and filter out values that no longer has a matching
      // option in the DOM.
      var needReset = el.multiple
        ? binding.value.some(function (v) { return hasNoMatchingOption(v, el.options); })
        : binding.value !== binding.oldValue && hasNoMatchingOption(binding.value, el.options);
      if (needReset) {
        trigger(el, 'change');
      }
    }
  }
};

function setSelected (el, binding, vm) {
  var value = binding.value;
  var isMultiple = el.multiple;
  if (isMultiple && !Array.isArray(value)) {
    "development" !== 'production' && warn(
      "<select multiple v-model=\"" + (binding.expression) + "\"> " +
      "expects an Array value for its binding, but got " + (Object.prototype.toString.call(value).slice(8, -1)),
      vm
    );
    return
  }
  var selected, option;
  for (var i = 0, l = el.options.length; i < l; i++) {
    option = el.options[i];
    if (isMultiple) {
      selected = looseIndexOf(value, getValue(option)) > -1;
      if (option.selected !== selected) {
        option.selected = selected;
      }
    } else {
      if (looseEqual(getValue(option), value)) {
        if (el.selectedIndex !== i) {
          el.selectedIndex = i;
        }
        return
      }
    }
  }
  if (!isMultiple) {
    el.selectedIndex = -1;
  }
}

function hasNoMatchingOption (value, options) {
  for (var i = 0, l = options.length; i < l; i++) {
    if (looseEqual(getValue(options[i]), value)) {
      return false
    }
  }
  return true
}

function getValue (option) {
  return '_value' in option
    ? option._value
    : option.value
}

function onCompositionStart (e) {
  e.target.composing = true;
}

function onCompositionEnd (e) {
  e.target.composing = false;
  trigger(e.target, 'input');
}

function trigger (el, type) {
  var e = document.createEvent('HTMLEvents');
  e.initEvent(type, true, true);
  el.dispatchEvent(e);
}

/*  */

// recursively search for possible transition defined inside the component root
function locateNode (vnode) {
  return vnode.componentInstance && (!vnode.data || !vnode.data.transition)
    ? locateNode(vnode.componentInstance._vnode)
    : vnode
}

var show = {
  bind: function bind (el, ref, vnode) {
    var value = ref.value;

    vnode = locateNode(vnode);
    var transition = vnode.data && vnode.data.transition;
    var originalDisplay = el.__vOriginalDisplay =
      el.style.display === 'none' ? '' : el.style.display;
    if (value && transition && !isIE9) {
      vnode.data.show = true;
      enter(vnode, function () {
        el.style.display = originalDisplay;
      });
    } else {
      el.style.display = value ? originalDisplay : 'none';
    }
  },

  update: function update (el, ref, vnode) {
    var value = ref.value;
    var oldValue = ref.oldValue;

    /* istanbul ignore if */
    if (value === oldValue) { return }
    vnode = locateNode(vnode);
    var transition = vnode.data && vnode.data.transition;
    if (transition && !isIE9) {
      vnode.data.show = true;
      if (value) {
        enter(vnode, function () {
          el.style.display = el.__vOriginalDisplay;
        });
      } else {
        leave(vnode, function () {
          el.style.display = 'none';
        });
      }
    } else {
      el.style.display = value ? el.__vOriginalDisplay : 'none';
    }
  },

  unbind: function unbind (
    el,
    binding,
    vnode,
    oldVnode,
    isDestroy
  ) {
    if (!isDestroy) {
      el.style.display = el.__vOriginalDisplay;
    }
  }
};

var platformDirectives = {
  model: model$1,
  show: show
};

/*  */

// Provides transition support for a single element/component.
// supports transition mode (out-in / in-out)

var transitionProps = {
  name: String,
  appear: Boolean,
  css: Boolean,
  mode: String,
  type: String,
  enterClass: String,
  leaveClass: String,
  enterToClass: String,
  leaveToClass: String,
  enterActiveClass: String,
  leaveActiveClass: String,
  appearClass: String,
  appearActiveClass: String,
  appearToClass: String,
  duration: [Number, String, Object]
};

// in case the child is also an abstract component, e.g. <keep-alive>
// we want to recursively retrieve the real component to be rendered
function getRealChild (vnode) {
  var compOptions = vnode && vnode.componentOptions;
  if (compOptions && compOptions.Ctor.options.abstract) {
    return getRealChild(getFirstComponentChild(compOptions.children))
  } else {
    return vnode
  }
}

function extractTransitionData (comp) {
  var data = {};
  var options = comp.$options;
  // props
  for (var key in options.propsData) {
    data[key] = comp[key];
  }
  // events.
  // extract listeners and pass them directly to the transition methods
  var listeners = options._parentListeners;
  for (var key$1 in listeners) {
    data[camelize(key$1)] = listeners[key$1];
  }
  return data
}

function placeholder (h, rawChild) {
  return /\d-keep-alive$/.test(rawChild.tag)
    ? h('keep-alive')
    : null
}

function hasParentTransition (vnode) {
  while ((vnode = vnode.parent)) {
    if (vnode.data.transition) {
      return true
    }
  }
}

function isSameChild (child, oldChild) {
  return oldChild.key === child.key && oldChild.tag === child.tag
}

var Transition = {
  name: 'transition',
  props: transitionProps,
  abstract: true,

  render: function render (h) {
    var this$1 = this;

    var children = this.$slots.default;
    if (!children) {
      return
    }

    // filter out text nodes (possible whitespaces)
    children = children.filter(function (c) { return c.tag; });
    /* istanbul ignore if */
    if (!children.length) {
      return
    }

    // warn multiple elements
    if ("development" !== 'production' && children.length > 1) {
      warn(
        '<transition> can only be used on a single element. Use ' +
        '<transition-group> for lists.',
        this.$parent
      );
    }

    var mode = this.mode;

    // warn invalid mode
    if ("development" !== 'production' &&
        mode && mode !== 'in-out' && mode !== 'out-in') {
      warn(
        'invalid <transition> mode: ' + mode,
        this.$parent
      );
    }

    var rawChild = children[0];

    // if this is a component root node and the component's
    // parent container node also has transition, skip.
    if (hasParentTransition(this.$vnode)) {
      return rawChild
    }

    // apply transition data to child
    // use getRealChild() to ignore abstract components e.g. keep-alive
    var child = getRealChild(rawChild);
    /* istanbul ignore if */
    if (!child) {
      return rawChild
    }

    if (this._leaving) {
      return placeholder(h, rawChild)
    }

    // ensure a key that is unique to the vnode type and to this transition
    // component instance. This key will be used to remove pending leaving nodes
    // during entering.
    var id = "__transition-" + (this._uid) + "-";
    child.key = child.key == null
      ? id + child.tag
      : isPrimitive(child.key)
        ? (String(child.key).indexOf(id) === 0 ? child.key : id + child.key)
        : child.key;

    var data = (child.data || (child.data = {})).transition = extractTransitionData(this);
    var oldRawChild = this._vnode;
    var oldChild = getRealChild(oldRawChild);

    // mark v-show
    // so that the transition module can hand over the control to the directive
    if (child.data.directives && child.data.directives.some(function (d) { return d.name === 'show'; })) {
      child.data.show = true;
    }

    if (oldChild && oldChild.data && !isSameChild(child, oldChild)) {
      // replace old child transition data with fresh one
      // important for dynamic transitions!
      var oldData = oldChild && (oldChild.data.transition = extend({}, data));
      // handle transition mode
      if (mode === 'out-in') {
        // return placeholder node and queue update when leave finishes
        this._leaving = true;
        mergeVNodeHook(oldData, 'afterLeave', function () {
          this$1._leaving = false;
          this$1.$forceUpdate();
        });
        return placeholder(h, rawChild)
      } else if (mode === 'in-out') {
        var delayedLeave;
        var performLeave = function () { delayedLeave(); };
        mergeVNodeHook(data, 'afterEnter', performLeave);
        mergeVNodeHook(data, 'enterCancelled', performLeave);
        mergeVNodeHook(oldData, 'delayLeave', function (leave) { delayedLeave = leave; });
      }
    }

    return rawChild
  }
};

/*  */

// Provides transition support for list items.
// supports move transitions using the FLIP technique.

// Because the vdom's children update algorithm is "unstable" - i.e.
// it doesn't guarantee the relative positioning of removed elements,
// we force transition-group to update its children into two passes:
// in the first pass, we remove all nodes that need to be removed,
// triggering their leaving transition; in the second pass, we insert/move
// into the final disired state. This way in the second pass removed
// nodes will remain where they should be.

var props = extend({
  tag: String,
  moveClass: String
}, transitionProps);

delete props.mode;

var TransitionGroup = {
  props: props,

  render: function render (h) {
    var tag = this.tag || this.$vnode.data.tag || 'span';
    var map = Object.create(null);
    var prevChildren = this.prevChildren = this.children;
    var rawChildren = this.$slots.default || [];
    var children = this.children = [];
    var transitionData = extractTransitionData(this);

    for (var i = 0; i < rawChildren.length; i++) {
      var c = rawChildren[i];
      if (c.tag) {
        if (c.key != null && String(c.key).indexOf('__vlist') !== 0) {
          children.push(c);
          map[c.key] = c
          ;(c.data || (c.data = {})).transition = transitionData;
        } else {
          var opts = c.componentOptions;
          var name = opts ? (opts.Ctor.options.name || opts.tag || '') : c.tag;
          warn(("<transition-group> children must be keyed: <" + name + ">"));
        }
      }
    }

    if (prevChildren) {
      var kept = [];
      var removed = [];
      for (var i$1 = 0; i$1 < prevChildren.length; i$1++) {
        var c$1 = prevChildren[i$1];
        c$1.data.transition = transitionData;
        c$1.data.pos = c$1.elm.getBoundingClientRect();
        if (map[c$1.key]) {
          kept.push(c$1);
        } else {
          removed.push(c$1);
        }
      }
      this.kept = h(tag, null, kept);
      this.removed = removed;
    }

    return h(tag, null, children)
  },

  beforeUpdate: function beforeUpdate () {
    // force removing pass
    this.__patch__(
      this._vnode,
      this.kept,
      false, // hydrating
      true // removeOnly (!important, avoids unnecessary moves)
    );
    this._vnode = this.kept;
  },

  updated: function updated () {
    var children = this.prevChildren;
    var moveClass = this.moveClass || ((this.name || 'v') + '-move');
    if (!children.length || !this.hasMove(children[0].elm, moveClass)) {
      return
    }

    // we divide the work into three loops to avoid mixing DOM reads and writes
    // in each iteration - which helps prevent layout thrashing.
    children.forEach(callPendingCbs);
    children.forEach(recordPosition);
    children.forEach(applyTranslation);

    // force reflow to put everything in position
    var body = document.body;
    var f = body.offsetHeight; // eslint-disable-line

    children.forEach(function (c) {
      if (c.data.moved) {
        var el = c.elm;
        var s = el.style;
        addTransitionClass(el, moveClass);
        s.transform = s.WebkitTransform = s.transitionDuration = '';
        el.addEventListener(transitionEndEvent, el._moveCb = function cb (e) {
          if (!e || /transform$/.test(e.propertyName)) {
            el.removeEventListener(transitionEndEvent, cb);
            el._moveCb = null;
            removeTransitionClass(el, moveClass);
          }
        });
      }
    });
  },

  methods: {
    hasMove: function hasMove (el, moveClass) {
      /* istanbul ignore if */
      if (!hasTransition) {
        return false
      }
      if (this._hasMove != null) {
        return this._hasMove
      }
      // Detect whether an element with the move class applied has
      // CSS transitions. Since the element may be inside an entering
      // transition at this very moment, we make a clone of it and remove
      // all other transition classes applied to ensure only the move class
      // is applied.
      var clone = el.cloneNode();
      if (el._transitionClasses) {
        el._transitionClasses.forEach(function (cls) { removeClass(clone, cls); });
      }
      addClass(clone, moveClass);
      clone.style.display = 'none';
      this.$el.appendChild(clone);
      var info = getTransitionInfo(clone);
      this.$el.removeChild(clone);
      return (this._hasMove = info.hasTransform)
    }
  }
};

function callPendingCbs (c) {
  /* istanbul ignore if */
  if (c.elm._moveCb) {
    c.elm._moveCb();
  }
  /* istanbul ignore if */
  if (c.elm._enterCb) {
    c.elm._enterCb();
  }
}

function recordPosition (c) {
  c.data.newPos = c.elm.getBoundingClientRect();
}

function applyTranslation (c) {
  var oldPos = c.data.pos;
  var newPos = c.data.newPos;
  var dx = oldPos.left - newPos.left;
  var dy = oldPos.top - newPos.top;
  if (dx || dy) {
    c.data.moved = true;
    var s = c.elm.style;
    s.transform = s.WebkitTransform = "translate(" + dx + "px," + dy + "px)";
    s.transitionDuration = '0s';
  }
}

var platformComponents = {
  Transition: Transition,
  TransitionGroup: TransitionGroup
};

/*  */

// install platform specific utils
Vue$3.config.mustUseProp = mustUseProp;
Vue$3.config.isReservedTag = isReservedTag;
Vue$3.config.getTagNamespace = getTagNamespace;
Vue$3.config.isUnknownElement = isUnknownElement;

// install platform runtime directives & components
extend(Vue$3.options.directives, platformDirectives);
extend(Vue$3.options.components, platformComponents);

// install platform patch function
Vue$3.prototype.__patch__ = inBrowser ? patch : noop;

// public mount method
Vue$3.prototype.$mount = function (
  el,
  hydrating
) {
  el = el && inBrowser ? query(el) : undefined;
  return mountComponent(this, el, hydrating)
};

// devtools global hook
/* istanbul ignore next */
setTimeout(function () {
  if (config.devtools) {
    if (devtools) {
      devtools.emit('init', Vue$3);
    } else if ("development" !== 'production' && isChrome) {
      console[console.info ? 'info' : 'log'](
        'Download the Vue Devtools extension for a better development experience:\n' +
        'https://github.com/vuejs/vue-devtools'
      );
    }
  }
  if ("development" !== 'production' &&
      config.productionTip !== false &&
      inBrowser && typeof console !== 'undefined') {
    console[console.info ? 'info' : 'log'](
      "You are running Vue in development mode.\n" +
      "Make sure to turn on production mode when deploying for production.\n" +
      "See more tips at https://vuejs.org/guide/deployment.html"
    );
  }
}, 0);

/*  */

// check whether current browser encodes a char inside attribute values
function shouldDecode (content, encoded) {
  var div = document.createElement('div');
  div.innerHTML = "<div a=\"" + content + "\">";
  return div.innerHTML.indexOf(encoded) > 0
}

// #3663
// IE encodes newlines inside attribute values while other browsers don't
var shouldDecodeNewlines = inBrowser ? shouldDecode('\n', '&#10;') : false;

/*  */

var isUnaryTag = makeMap(
  'area,base,br,col,embed,frame,hr,img,input,isindex,keygen,' +
  'link,meta,param,source,track,wbr',
  true
);

// Elements that you can, intentionally, leave open
// (and which close themselves)
var canBeLeftOpenTag = makeMap(
  'colgroup,dd,dt,li,options,p,td,tfoot,th,thead,tr,source',
  true
);

// HTML5 tags https://html.spec.whatwg.org/multipage/indices.html#elements-3
// Phrasing Content https://html.spec.whatwg.org/multipage/dom.html#phrasing-content
var isNonPhrasingTag = makeMap(
  'address,article,aside,base,blockquote,body,caption,col,colgroup,dd,' +
  'details,dialog,div,dl,dt,fieldset,figcaption,figure,footer,form,' +
  'h1,h2,h3,h4,h5,h6,head,header,hgroup,hr,html,legend,li,menuitem,meta,' +
  'optgroup,option,param,rp,rt,source,style,summary,tbody,td,tfoot,th,thead,' +
  'title,tr,track',
  true
);

/*  */

var decoder;

function decode (html) {
  decoder = decoder || document.createElement('div');
  decoder.innerHTML = html;
  return decoder.textContent
}

/**
 * Not type-checking this file because it's mostly vendor code.
 */

/*!
 * HTML Parser By John Resig (ejohn.org)
 * Modified by Juriy "kangax" Zaytsev
 * Original code by Erik Arvidsson, Mozilla Public License
 * http://erik.eae.net/simplehtmlparser/simplehtmlparser.js
 */

// Regular Expressions for parsing tags and attributes
var singleAttrIdentifier = /([^\s"'<>/=]+)/;
var singleAttrAssign = /(?:=)/;
var singleAttrValues = [
  // attr value double quotes
  /"([^"]*)"+/.source,
  // attr value, single quotes
  /'([^']*)'+/.source,
  // attr value, no quotes
  /([^\s"'=<>`]+)/.source
];
var attribute = new RegExp(
  '^\\s*' + singleAttrIdentifier.source +
  '(?:\\s*(' + singleAttrAssign.source + ')' +
  '\\s*(?:' + singleAttrValues.join('|') + '))?'
);

// could use https://www.w3.org/TR/1999/REC-xml-names-19990114/#NT-QName
// but for Vue templates we can enforce a simple charset
var ncname = '[a-zA-Z_][\\w\\-\\.]*';
var qnameCapture = '((?:' + ncname + '\\:)?' + ncname + ')';
var startTagOpen = new RegExp('^<' + qnameCapture);
var startTagClose = /^\s*(\/?)>/;
var endTag = new RegExp('^<\\/' + qnameCapture + '[^>]*>');
var doctype = /^<!DOCTYPE [^>]+>/i;
var comment = /^<!--/;
var conditionalComment = /^<!\[/;

var IS_REGEX_CAPTURING_BROKEN = false;
'x'.replace(/x(.)?/g, function (m, g) {
  IS_REGEX_CAPTURING_BROKEN = g === '';
});

// Special Elements (can contain anything)
var isScriptOrStyle = makeMap('script,style', true);
var reCache = {};

var decodingMap = {
  '&lt;': '<',
  '&gt;': '>',
  '&quot;': '"',
  '&amp;': '&',
  '&#10;': '\n'
};
var encodedAttr = /&(?:lt|gt|quot|amp);/g;
var encodedAttrWithNewLines = /&(?:lt|gt|quot|amp|#10);/g;

function decodeAttr (value, shouldDecodeNewlines) {
  var re = shouldDecodeNewlines ? encodedAttrWithNewLines : encodedAttr;
  return value.replace(re, function (match) { return decodingMap[match]; })
}

function parseHTML (html, options) {
  var stack = [];
  var expectHTML = options.expectHTML;
  var isUnaryTag$$1 = options.isUnaryTag || no;
  var index = 0;
  var last, lastTag;
  while (html) {
    last = html;
    // Make sure we're not in a script or style element
    if (!lastTag || !isScriptOrStyle(lastTag)) {
      var textEnd = html.indexOf('<');
      if (textEnd === 0) {
        // Comment:
        if (comment.test(html)) {
          var commentEnd = html.indexOf('-->');

          if (commentEnd >= 0) {
            advance(commentEnd + 3);
            continue
          }
        }

        // http://en.wikipedia.org/wiki/Conditional_comment#Downlevel-revealed_conditional_comment
        if (conditionalComment.test(html)) {
          var conditionalEnd = html.indexOf(']>');

          if (conditionalEnd >= 0) {
            advance(conditionalEnd + 2);
            continue
          }
        }

        // Doctype:
        var doctypeMatch = html.match(doctype);
        if (doctypeMatch) {
          advance(doctypeMatch[0].length);
          continue
        }

        // End tag:
        var endTagMatch = html.match(endTag);
        if (endTagMatch) {
          var curIndex = index;
          advance(endTagMatch[0].length);
          parseEndTag(endTagMatch[1], curIndex, index);
          continue
        }

        // Start tag:
        var startTagMatch = parseStartTag();
        if (startTagMatch) {
          handleStartTag(startTagMatch);
          continue
        }
      }

      var text = (void 0), rest$1 = (void 0), next = (void 0);
      if (textEnd >= 0) {
        rest$1 = html.slice(textEnd);
        while (
          !endTag.test(rest$1) &&
          !startTagOpen.test(rest$1) &&
          !comment.test(rest$1) &&
          !conditionalComment.test(rest$1)
        ) {
          // < in plain text, be forgiving and treat it as text
          next = rest$1.indexOf('<', 1);
          if (next < 0) { break }
          textEnd += next;
          rest$1 = html.slice(textEnd);
        }
        text = html.substring(0, textEnd);
        advance(textEnd);
      }

      if (textEnd < 0) {
        text = html;
        html = '';
      }

      if (options.chars && text) {
        options.chars(text);
      }
    } else {
      var stackedTag = lastTag.toLowerCase();
      var reStackedTag = reCache[stackedTag] || (reCache[stackedTag] = new RegExp('([\\s\\S]*?)(</' + stackedTag + '[^>]*>)', 'i'));
      var endTagLength = 0;
      var rest = html.replace(reStackedTag, function (all, text, endTag) {
        endTagLength = endTag.length;
        if (stackedTag !== 'script' && stackedTag !== 'style' && stackedTag !== 'noscript') {
          text = text
            .replace(/<!--([\s\S]*?)-->/g, '$1')
            .replace(/<!\[CDATA\[([\s\S]*?)]]>/g, '$1');
        }
        if (options.chars) {
          options.chars(text);
        }
        return ''
      });
      index += html.length - rest.length;
      html = rest;
      parseEndTag(stackedTag, index - endTagLength, index);
    }

    if (html === last) {
      options.chars && options.chars(html);
      if ("development" !== 'production' && !stack.length && options.warn) {
        options.warn(("Mal-formatted tag at end of template: \"" + html + "\""));
      }
      break
    }
  }

  // Clean up any remaining tags
  parseEndTag();

  function advance (n) {
    index += n;
    html = html.substring(n);
  }

  function parseStartTag () {
    var start = html.match(startTagOpen);
    if (start) {
      var match = {
        tagName: start[1],
        attrs: [],
        start: index
      };
      advance(start[0].length);
      var end, attr;
      while (!(end = html.match(startTagClose)) && (attr = html.match(attribute))) {
        advance(attr[0].length);
        match.attrs.push(attr);
      }
      if (end) {
        match.unarySlash = end[1];
        advance(end[0].length);
        match.end = index;
        return match
      }
    }
  }

  function handleStartTag (match) {
    var tagName = match.tagName;
    var unarySlash = match.unarySlash;

    if (expectHTML) {
      if (lastTag === 'p' && isNonPhrasingTag(tagName)) {
        parseEndTag(lastTag);
      }
      if (canBeLeftOpenTag(tagName) && lastTag === tagName) {
        parseEndTag(tagName);
      }
    }

    var unary = isUnaryTag$$1(tagName) || tagName === 'html' && lastTag === 'head' || !!unarySlash;

    var l = match.attrs.length;
    var attrs = new Array(l);
    for (var i = 0; i < l; i++) {
      var args = match.attrs[i];
      // hackish work around FF bug https://bugzilla.mozilla.org/show_bug.cgi?id=369778
      if (IS_REGEX_CAPTURING_BROKEN && args[0].indexOf('""') === -1) {
        if (args[3] === '') { delete args[3]; }
        if (args[4] === '') { delete args[4]; }
        if (args[5] === '') { delete args[5]; }
      }
      var value = args[3] || args[4] || args[5] || '';
      attrs[i] = {
        name: args[1],
        value: decodeAttr(
          value,
          options.shouldDecodeNewlines
        )
      };
    }

    if (!unary) {
      stack.push({ tag: tagName, lowerCasedTag: tagName.toLowerCase(), attrs: attrs });
      lastTag = tagName;
    }

    if (options.start) {
      options.start(tagName, attrs, unary, match.start, match.end);
    }
  }

  function parseEndTag (tagName, start, end) {
    var pos, lowerCasedTagName;
    if (start == null) { start = index; }
    if (end == null) { end = index; }

    if (tagName) {
      lowerCasedTagName = tagName.toLowerCase();
    }

    // Find the closest opened tag of the same type
    if (tagName) {
      for (pos = stack.length - 1; pos >= 0; pos--) {
        if (stack[pos].lowerCasedTag === lowerCasedTagName) {
          break
        }
      }
    } else {
      // If no tag name is provided, clean shop
      pos = 0;
    }

    if (pos >= 0) {
      // Close all the open elements, up the stack
      for (var i = stack.length - 1; i >= pos; i--) {
        if ("development" !== 'production' &&
            (i > pos || !tagName) &&
            options.warn) {
          options.warn(
            ("tag <" + (stack[i].tag) + "> has no matching end tag.")
          );
        }
        if (options.end) {
          options.end(stack[i].tag, start, end);
        }
      }

      // Remove the open elements from the stack
      stack.length = pos;
      lastTag = pos && stack[pos - 1].tag;
    } else if (lowerCasedTagName === 'br') {
      if (options.start) {
        options.start(tagName, [], true, start, end);
      }
    } else if (lowerCasedTagName === 'p') {
      if (options.start) {
        options.start(tagName, [], false, start, end);
      }
      if (options.end) {
        options.end(tagName, start, end);
      }
    }
  }
}

/*  */

var defaultTagRE = /\{\{((?:.|\n)+?)\}\}/g;
var regexEscapeRE = /[-.*+?^${}()|[\]\/\\]/g;

var buildRegex = cached(function (delimiters) {
  var open = delimiters[0].replace(regexEscapeRE, '\\$&');
  var close = delimiters[1].replace(regexEscapeRE, '\\$&');
  return new RegExp(open + '((?:.|\\n)+?)' + close, 'g')
});

function parseText (
  text,
  delimiters
) {
  var tagRE = delimiters ? buildRegex(delimiters) : defaultTagRE;
  if (!tagRE.test(text)) {
    return
  }
  var tokens = [];
  var lastIndex = tagRE.lastIndex = 0;
  var match, index;
  while ((match = tagRE.exec(text))) {
    index = match.index;
    // push text token
    if (index > lastIndex) {
      tokens.push(JSON.stringify(text.slice(lastIndex, index)));
    }
    // tag token
    var exp = parseFilters(match[1].trim());
    tokens.push(("_s(" + exp + ")"));
    lastIndex = index + match[0].length;
  }
  if (lastIndex < text.length) {
    tokens.push(JSON.stringify(text.slice(lastIndex)));
  }
  return tokens.join('+')
}

/*  */

var dirRE = /^v-|^@|^:/;
var forAliasRE = /(.*?)\s+(?:in|of)\s+(.*)/;
var forIteratorRE = /\((\{[^}]*\}|[^,]*),([^,]*)(?:,([^,]*))?\)/;
var bindRE = /^:|^v-bind:/;
var onRE = /^@|^v-on:/;
var argRE = /:(.*)$/;
var modifierRE = /\.[^.]+/g;

var decodeHTMLCached = cached(decode);

// configurable state
var warn$2;
var platformGetTagNamespace;
var platformMustUseProp;
var platformIsPreTag;
var preTransforms;
var transforms;
var postTransforms;
var delimiters;

/**
 * Convert HTML string to AST.
 */
function parse (
  template,
  options
) {
  warn$2 = options.warn || baseWarn;
  platformGetTagNamespace = options.getTagNamespace || no;
  platformMustUseProp = options.mustUseProp || no;
  platformIsPreTag = options.isPreTag || no;
  preTransforms = pluckModuleFunction(options.modules, 'preTransformNode');
  transforms = pluckModuleFunction(options.modules, 'transformNode');
  postTransforms = pluckModuleFunction(options.modules, 'postTransformNode');
  delimiters = options.delimiters;

  var stack = [];
  var preserveWhitespace = options.preserveWhitespace !== false;
  var root;
  var currentParent;
  var inVPre = false;
  var inPre = false;
  var warned = false;

  function endPre (element) {
    // check pre state
    if (element.pre) {
      inVPre = false;
    }
    if (platformIsPreTag(element.tag)) {
      inPre = false;
    }
  }

  parseHTML(template, {
    warn: warn$2,
    expectHTML: options.expectHTML,
    isUnaryTag: options.isUnaryTag,
    shouldDecodeNewlines: options.shouldDecodeNewlines,
    start: function start (tag, attrs, unary) {
      // check namespace.
      // inherit parent ns if there is one
      var ns = (currentParent && currentParent.ns) || platformGetTagNamespace(tag);

      // handle IE svg bug
      /* istanbul ignore if */
      if (isIE && ns === 'svg') {
        attrs = guardIESVGBug(attrs);
      }

      var element = {
        type: 1,
        tag: tag,
        attrsList: attrs,
        attrsMap: makeAttrsMap(attrs),
        parent: currentParent,
        children: []
      };
      if (ns) {
        element.ns = ns;
      }

      if (isForbiddenTag(element) && !isServerRendering()) {
        element.forbidden = true;
        "development" !== 'production' && warn$2(
          'Templates should only be responsible for mapping the state to the ' +
          'UI. Avoid placing tags with side-effects in your templates, such as ' +
          "<" + tag + ">" + ', as they will not be parsed.'
        );
      }

      // apply pre-transforms
      for (var i = 0; i < preTransforms.length; i++) {
        preTransforms[i](element, options);
      }

      if (!inVPre) {
        processPre(element);
        if (element.pre) {
          inVPre = true;
        }
      }
      if (platformIsPreTag(element.tag)) {
        inPre = true;
      }
      if (inVPre) {
        processRawAttrs(element);
      } else {
        processFor(element);
        processIf(element);
        processOnce(element);
        processKey(element);

        // determine whether this is a plain element after
        // removing structural attributes
        element.plain = !element.key && !attrs.length;

        processRef(element);
        processSlot(element);
        processComponent(element);
        for (var i$1 = 0; i$1 < transforms.length; i$1++) {
          transforms[i$1](element, options);
        }
        processAttrs(element);
      }

      function checkRootConstraints (el) {
        if ("development" !== 'production' && !warned) {
          if (el.tag === 'slot' || el.tag === 'template') {
            warned = true;
            warn$2(
              "Cannot use <" + (el.tag) + "> as component root element because it may " +
              'contain multiple nodes.'
            );
          }
          if (el.attrsMap.hasOwnProperty('v-for')) {
            warned = true;
            warn$2(
              'Cannot use v-for on stateful component root element because ' +
              'it renders multiple elements.'
            );
          }
        }
      }

      // tree management
      if (!root) {
        root = element;
        checkRootConstraints(root);
      } else if (!stack.length) {
        // allow root elements with v-if, v-else-if and v-else
        if (root.if && (element.elseif || element.else)) {
          checkRootConstraints(element);
          addIfCondition(root, {
            exp: element.elseif,
            block: element
          });
        } else if ("development" !== 'production' && !warned) {
          warned = true;
          warn$2(
            "Component template should contain exactly one root element. " +
            "If you are using v-if on multiple elements, " +
            "use v-else-if to chain them instead."
          );
        }
      }
      if (currentParent && !element.forbidden) {
        if (element.elseif || element.else) {
          processIfConditions(element, currentParent);
        } else if (element.slotScope) { // scoped slot
          currentParent.plain = false;
          var name = element.slotTarget || '"default"';(currentParent.scopedSlots || (currentParent.scopedSlots = {}))[name] = element;
        } else {
          currentParent.children.push(element);
          element.parent = currentParent;
        }
      }
      if (!unary) {
        currentParent = element;
        stack.push(element);
      } else {
        endPre(element);
      }
      // apply post-transforms
      for (var i$2 = 0; i$2 < postTransforms.length; i$2++) {
        postTransforms[i$2](element, options);
      }
    },

    end: function end () {
      // remove trailing whitespace
      var element = stack[stack.length - 1];
      var lastNode = element.children[element.children.length - 1];
      if (lastNode && lastNode.type === 3 && lastNode.text === ' ' && !inPre) {
        element.children.pop();
      }
      // pop stack
      stack.length -= 1;
      currentParent = stack[stack.length - 1];
      endPre(element);
    },

    chars: function chars (text) {
      if (!currentParent) {
        if ("development" !== 'production' && !warned && text === template) {
          warned = true;
          warn$2(
            'Component template requires a root element, rather than just text.'
          );
        }
        return
      }
      // IE textarea placeholder bug
      /* istanbul ignore if */
      if (isIE &&
          currentParent.tag === 'textarea' &&
          currentParent.attrsMap.placeholder === text) {
        return
      }
      var children = currentParent.children;
      text = inPre || text.trim()
        ? decodeHTMLCached(text)
        // only preserve whitespace if its not right after a starting tag
        : preserveWhitespace && children.length ? ' ' : '';
      if (text) {
        var expression;
        if (!inVPre && text !== ' ' && (expression = parseText(text, delimiters))) {
          children.push({
            type: 2,
            expression: expression,
            text: text
          });
        } else if (text !== ' ' || !children.length || children[children.length - 1].text !== ' ') {
          children.push({
            type: 3,
            text: text
          });
        }
      }
    }
  });
  return root
}

function processPre (el) {
  if (getAndRemoveAttr(el, 'v-pre') != null) {
    el.pre = true;
  }
}

function processRawAttrs (el) {
  var l = el.attrsList.length;
  if (l) {
    var attrs = el.attrs = new Array(l);
    for (var i = 0; i < l; i++) {
      attrs[i] = {
        name: el.attrsList[i].name,
        value: JSON.stringify(el.attrsList[i].value)
      };
    }
  } else if (!el.pre) {
    // non root node in pre blocks with no attributes
    el.plain = true;
  }
}

function processKey (el) {
  var exp = getBindingAttr(el, 'key');
  if (exp) {
    if ("development" !== 'production' && el.tag === 'template') {
      warn$2("<template> cannot be keyed. Place the key on real elements instead.");
    }
    el.key = exp;
  }
}

function processRef (el) {
  var ref = getBindingAttr(el, 'ref');
  if (ref) {
    el.ref = ref;
    el.refInFor = checkInFor(el);
  }
}

function processFor (el) {
  var exp;
  if ((exp = getAndRemoveAttr(el, 'v-for'))) {
    var inMatch = exp.match(forAliasRE);
    if (!inMatch) {
      "development" !== 'production' && warn$2(
        ("Invalid v-for expression: " + exp)
      );
      return
    }
    el.for = inMatch[2].trim();
    var alias = inMatch[1].trim();
    var iteratorMatch = alias.match(forIteratorRE);
    if (iteratorMatch) {
      el.alias = iteratorMatch[1].trim();
      el.iterator1 = iteratorMatch[2].trim();
      if (iteratorMatch[3]) {
        el.iterator2 = iteratorMatch[3].trim();
      }
    } else {
      el.alias = alias;
    }
  }
}

function processIf (el) {
  var exp = getAndRemoveAttr(el, 'v-if');
  if (exp) {
    el.if = exp;
    addIfCondition(el, {
      exp: exp,
      block: el
    });
  } else {
    if (getAndRemoveAttr(el, 'v-else') != null) {
      el.else = true;
    }
    var elseif = getAndRemoveAttr(el, 'v-else-if');
    if (elseif) {
      el.elseif = elseif;
    }
  }
}

function processIfConditions (el, parent) {
  var prev = findPrevElement(parent.children);
  if (prev && prev.if) {
    addIfCondition(prev, {
      exp: el.elseif,
      block: el
    });
  } else {
    warn$2(
      "v-" + (el.elseif ? ('else-if="' + el.elseif + '"') : 'else') + " " +
      "used on element <" + (el.tag) + "> without corresponding v-if."
    );
  }
}

function findPrevElement (children) {
  var i = children.length;
  while (i--) {
    if (children[i].type === 1) {
      return children[i]
    } else {
      if ("development" !== 'production' && children[i].text !== ' ') {
        warn$2(
          "text \"" + (children[i].text.trim()) + "\" between v-if and v-else(-if) " +
          "will be ignored."
        );
      }
      children.pop();
    }
  }
}

function addIfCondition (el, condition) {
  if (!el.ifConditions) {
    el.ifConditions = [];
  }
  el.ifConditions.push(condition);
}

function processOnce (el) {
  var once$$1 = getAndRemoveAttr(el, 'v-once');
  if (once$$1 != null) {
    el.once = true;
  }
}

function processSlot (el) {
  if (el.tag === 'slot') {
    el.slotName = getBindingAttr(el, 'name');
    if ("development" !== 'production' && el.key) {
      warn$2(
        "`key` does not work on <slot> because slots are abstract outlets " +
        "and can possibly expand into multiple elements. " +
        "Use the key on a wrapping element instead."
      );
    }
  } else {
    var slotTarget = getBindingAttr(el, 'slot');
    if (slotTarget) {
      el.slotTarget = slotTarget === '""' ? '"default"' : slotTarget;
    }
    if (el.tag === 'template') {
      el.slotScope = getAndRemoveAttr(el, 'scope');
    }
  }
}

function processComponent (el) {
  var binding;
  if ((binding = getBindingAttr(el, 'is'))) {
    el.component = binding;
  }
  if (getAndRemoveAttr(el, 'inline-template') != null) {
    el.inlineTemplate = true;
  }
}

function processAttrs (el) {
  var list = el.attrsList;
  var i, l, name, rawName, value, arg, modifiers, isProp;
  for (i = 0, l = list.length; i < l; i++) {
    name = rawName = list[i].name;
    value = list[i].value;
    if (dirRE.test(name)) {
      // mark element as dynamic
      el.hasBindings = true;
      // modifiers
      modifiers = parseModifiers(name);
      if (modifiers) {
        name = name.replace(modifierRE, '');
      }
      if (bindRE.test(name)) { // v-bind
        name = name.replace(bindRE, '');
        value = parseFilters(value);
        isProp = false;
        if (modifiers) {
          if (modifiers.prop) {
            isProp = true;
            name = camelize(name);
            if (name === 'innerHtml') { name = 'innerHTML'; }
          }
          if (modifiers.camel) {
            name = camelize(name);
          }
        }
        if (isProp || platformMustUseProp(el.tag, el.attrsMap.type, name)) {
          addProp(el, name, value);
        } else {
          addAttr(el, name, value);
        }
      } else if (onRE.test(name)) { // v-on
        name = name.replace(onRE, '');
        addHandler(el, name, value, modifiers);
      } else { // normal directives
        name = name.replace(dirRE, '');
        // parse arg
        var argMatch = name.match(argRE);
        if (argMatch && (arg = argMatch[1])) {
          name = name.slice(0, -(arg.length + 1));
        }
        addDirective(el, name, rawName, value, arg, modifiers);
        if ("development" !== 'production' && name === 'model') {
          checkForAliasModel(el, value);
        }
      }
    } else {
      // literal attribute
      {
        var expression = parseText(value, delimiters);
        if (expression) {
          warn$2(
            name + "=\"" + value + "\": " +
            'Interpolation inside attributes has been removed. ' +
            'Use v-bind or the colon shorthand instead. For example, ' +
            'instead of <div id="{{ val }}">, use <div :id="val">.'
          );
        }
      }
      addAttr(el, name, JSON.stringify(value));
    }
  }
}

function checkInFor (el) {
  var parent = el;
  while (parent) {
    if (parent.for !== undefined) {
      return true
    }
    parent = parent.parent;
  }
  return false
}

function parseModifiers (name) {
  var match = name.match(modifierRE);
  if (match) {
    var ret = {};
    match.forEach(function (m) { ret[m.slice(1)] = true; });
    return ret
  }
}

function makeAttrsMap (attrs) {
  var map = {};
  for (var i = 0, l = attrs.length; i < l; i++) {
    if ("development" !== 'production' && map[attrs[i].name] && !isIE) {
      warn$2('duplicate attribute: ' + attrs[i].name);
    }
    map[attrs[i].name] = attrs[i].value;
  }
  return map
}

function isForbiddenTag (el) {
  return (
    el.tag === 'style' ||
    (el.tag === 'script' && (
      !el.attrsMap.type ||
      el.attrsMap.type === 'text/javascript'
    ))
  )
}

var ieNSBug = /^xmlns:NS\d+/;
var ieNSPrefix = /^NS\d+:/;

/* istanbul ignore next */
function guardIESVGBug (attrs) {
  var res = [];
  for (var i = 0; i < attrs.length; i++) {
    var attr = attrs[i];
    if (!ieNSBug.test(attr.name)) {
      attr.name = attr.name.replace(ieNSPrefix, '');
      res.push(attr);
    }
  }
  return res
}

function checkForAliasModel (el, value) {
  var _el = el;
  while (_el) {
    if (_el.for && _el.alias === value) {
      warn$2(
        "<" + (el.tag) + " v-model=\"" + value + "\">: " +
        "You are binding v-model directly to a v-for iteration alias. " +
        "This will not be able to modify the v-for source array because " +
        "writing to the alias is like modifying a function local variable. " +
        "Consider using an array of objects and use v-model on an object property instead."
      );
    }
    _el = _el.parent;
  }
}

/*  */

var isStaticKey;
var isPlatformReservedTag;

var genStaticKeysCached = cached(genStaticKeys$1);

/**
 * Goal of the optimizer: walk the generated template AST tree
 * and detect sub-trees that are purely static, i.e. parts of
 * the DOM that never needs to change.
 *
 * Once we detect these sub-trees, we can:
 *
 * 1. Hoist them into constants, so that we no longer need to
 *    create fresh nodes for them on each re-render;
 * 2. Completely skip them in the patching process.
 */
function optimize (root, options) {
  if (!root) { return }
  isStaticKey = genStaticKeysCached(options.staticKeys || '');
  isPlatformReservedTag = options.isReservedTag || no;
  // first pass: mark all non-static nodes.
  markStatic$1(root);
  // second pass: mark static roots.
  markStaticRoots(root, false);
}

function genStaticKeys$1 (keys) {
  return makeMap(
    'type,tag,attrsList,attrsMap,plain,parent,children,attrs' +
    (keys ? ',' + keys : '')
  )
}

function markStatic$1 (node) {
  node.static = isStatic(node);
  if (node.type === 1) {
    // do not make component slot content static. this avoids
    // 1. components not able to mutate slot nodes
    // 2. static slot content fails for hot-reloading
    if (
      !isPlatformReservedTag(node.tag) &&
      node.tag !== 'slot' &&
      node.attrsMap['inline-template'] == null
    ) {
      return
    }
    for (var i = 0, l = node.children.length; i < l; i++) {
      var child = node.children[i];
      markStatic$1(child);
      if (!child.static) {
        node.static = false;
      }
    }
  }
}

function markStaticRoots (node, isInFor) {
  if (node.type === 1) {
    if (node.static || node.once) {
      node.staticInFor = isInFor;
    }
    // For a node to qualify as a static root, it should have children that
    // are not just static text. Otherwise the cost of hoisting out will
    // outweigh the benefits and it's better off to just always render it fresh.
    if (node.static && node.children.length && !(
      node.children.length === 1 &&
      node.children[0].type === 3
    )) {
      node.staticRoot = true;
      return
    } else {
      node.staticRoot = false;
    }
    if (node.children) {
      for (var i = 0, l = node.children.length; i < l; i++) {
        markStaticRoots(node.children[i], isInFor || !!node.for);
      }
    }
    if (node.ifConditions) {
      walkThroughConditionsBlocks(node.ifConditions, isInFor);
    }
  }
}

function walkThroughConditionsBlocks (conditionBlocks, isInFor) {
  for (var i = 1, len = conditionBlocks.length; i < len; i++) {
    markStaticRoots(conditionBlocks[i].block, isInFor);
  }
}

function isStatic (node) {
  if (node.type === 2) { // expression
    return false
  }
  if (node.type === 3) { // text
    return true
  }
  return !!(node.pre || (
    !node.hasBindings && // no dynamic bindings
    !node.if && !node.for && // not v-if or v-for or v-else
    !isBuiltInTag(node.tag) && // not a built-in
    isPlatformReservedTag(node.tag) && // not a component
    !isDirectChildOfTemplateFor(node) &&
    Object.keys(node).every(isStaticKey)
  ))
}

function isDirectChildOfTemplateFor (node) {
  while (node.parent) {
    node = node.parent;
    if (node.tag !== 'template') {
      return false
    }
    if (node.for) {
      return true
    }
  }
  return false
}

/*  */

var fnExpRE = /^\s*([\w$_]+|\([^)]*?\))\s*=>|^function\s*\(/;
var simplePathRE = /^\s*[A-Za-z_$][\w$]*(?:\.[A-Za-z_$][\w$]*|\['.*?']|\[".*?"]|\[\d+]|\[[A-Za-z_$][\w$]*])*\s*$/;

// keyCode aliases
var keyCodes = {
  esc: 27,
  tab: 9,
  enter: 13,
  space: 32,
  up: 38,
  left: 37,
  right: 39,
  down: 40,
  'delete': [8, 46]
};

// #4868: modifiers that prevent the execution of the listener
// need to explicitly return null so that we can determine whether to remove
// the listener for .once
var genGuard = function (condition) { return ("if(" + condition + ")return null;"); };

var modifierCode = {
  stop: '$event.stopPropagation();',
  prevent: '$event.preventDefault();',
  self: genGuard("$event.target !== $event.currentTarget"),
  ctrl: genGuard("!$event.ctrlKey"),
  shift: genGuard("!$event.shiftKey"),
  alt: genGuard("!$event.altKey"),
  meta: genGuard("!$event.metaKey"),
  left: genGuard("$event.button !== 0"),
  middle: genGuard("$event.button !== 1"),
  right: genGuard("$event.button !== 2")
};

function genHandlers (events, native) {
  var res = native ? 'nativeOn:{' : 'on:{';
  for (var name in events) {
    res += "\"" + name + "\":" + (genHandler(name, events[name])) + ",";
  }
  return res.slice(0, -1) + '}'
}

function genHandler (
  name,
  handler
) {
  if (!handler) {
    return 'function(){}'
  } else if (Array.isArray(handler)) {
    return ("[" + (handler.map(function (handler) { return genHandler(name, handler); }).join(',')) + "]")
  } else if (!handler.modifiers) {
    return fnExpRE.test(handler.value) || simplePathRE.test(handler.value)
      ? handler.value
      : ("function($event){" + (handler.value) + "}")
  } else {
    var code = '';
    var keys = [];
    for (var key in handler.modifiers) {
      if (modifierCode[key]) {
        code += modifierCode[key];
      } else {
        keys.push(key);
      }
    }
    if (keys.length) {
      code = genKeyFilter(keys) + code;
    }
    var handlerCode = simplePathRE.test(handler.value)
      ? handler.value + '($event)'
      : handler.value;
    return ("function($event){" + code + handlerCode + "}")
  }
}

function genKeyFilter (keys) {
  return ("if(" + (keys.map(genFilterCode).join('&&')) + ")return null;")
}

function genFilterCode (key) {
  var keyVal = parseInt(key, 10);
  if (keyVal) {
    return ("$event.keyCode!==" + keyVal)
  }
  var alias = keyCodes[key];
  return ("_k($event.keyCode," + (JSON.stringify(key)) + (alias ? ',' + JSON.stringify(alias) : '') + ")")
}

/*  */

function bind$1 (el, dir) {
  el.wrapData = function (code) {
    return ("_b(" + code + ",'" + (el.tag) + "'," + (dir.value) + (dir.modifiers && dir.modifiers.prop ? ',true' : '') + ")")
  };
}

/*  */

var baseDirectives = {
  bind: bind$1,
  cloak: noop
};

/*  */

// configurable state
var warn$3;
var transforms$1;
var dataGenFns;
var platformDirectives$1;
var isPlatformReservedTag$1;
var staticRenderFns;
var onceCount;
var currentOptions;

function generate (
  ast,
  options
) {
  // save previous staticRenderFns so generate calls can be nested
  var prevStaticRenderFns = staticRenderFns;
  var currentStaticRenderFns = staticRenderFns = [];
  var prevOnceCount = onceCount;
  onceCount = 0;
  currentOptions = options;
  warn$3 = options.warn || baseWarn;
  transforms$1 = pluckModuleFunction(options.modules, 'transformCode');
  dataGenFns = pluckModuleFunction(options.modules, 'genData');
  platformDirectives$1 = options.directives || {};
  isPlatformReservedTag$1 = options.isReservedTag || no;
  var code = ast ? genElement(ast) : '_c("div")';
  staticRenderFns = prevStaticRenderFns;
  onceCount = prevOnceCount;
  return {
    render: ("with(this){return " + code + "}"),
    staticRenderFns: currentStaticRenderFns
  }
}

function genElement (el) {
  if (el.staticRoot && !el.staticProcessed) {
    return genStatic(el)
  } else if (el.once && !el.onceProcessed) {
    return genOnce(el)
  } else if (el.for && !el.forProcessed) {
    return genFor(el)
  } else if (el.if && !el.ifProcessed) {
    return genIf(el)
  } else if (el.tag === 'template' && !el.slotTarget) {
    return genChildren(el) || 'void 0'
  } else if (el.tag === 'slot') {
    return genSlot(el)
  } else {
    // component or element
    var code;
    if (el.component) {
      code = genComponent(el.component, el);
    } else {
      var data = el.plain ? undefined : genData(el);

      var children = el.inlineTemplate ? null : genChildren(el, true);
      code = "_c('" + (el.tag) + "'" + (data ? ("," + data) : '') + (children ? ("," + children) : '') + ")";
    }
    // module transforms
    for (var i = 0; i < transforms$1.length; i++) {
      code = transforms$1[i](el, code);
    }
    return code
  }
}

// hoist static sub-trees out
function genStatic (el) {
  el.staticProcessed = true;
  staticRenderFns.push(("with(this){return " + (genElement(el)) + "}"));
  return ("_m(" + (staticRenderFns.length - 1) + (el.staticInFor ? ',true' : '') + ")")
}

// v-once
function genOnce (el) {
  el.onceProcessed = true;
  if (el.if && !el.ifProcessed) {
    return genIf(el)
  } else if (el.staticInFor) {
    var key = '';
    var parent = el.parent;
    while (parent) {
      if (parent.for) {
        key = parent.key;
        break
      }
      parent = parent.parent;
    }
    if (!key) {
      "development" !== 'production' && warn$3(
        "v-once can only be used inside v-for that is keyed. "
      );
      return genElement(el)
    }
    return ("_o(" + (genElement(el)) + "," + (onceCount++) + (key ? ("," + key) : "") + ")")
  } else {
    return genStatic(el)
  }
}

function genIf (el) {
  el.ifProcessed = true; // avoid recursion
  return genIfConditions(el.ifConditions.slice())
}

function genIfConditions (conditions) {
  if (!conditions.length) {
    return '_e()'
  }

  var condition = conditions.shift();
  if (condition.exp) {
    return ("(" + (condition.exp) + ")?" + (genTernaryExp(condition.block)) + ":" + (genIfConditions(conditions)))
  } else {
    return ("" + (genTernaryExp(condition.block)))
  }

  // v-if with v-once should generate code like (a)?_m(0):_m(1)
  function genTernaryExp (el) {
    return el.once ? genOnce(el) : genElement(el)
  }
}

function genFor (el) {
  var exp = el.for;
  var alias = el.alias;
  var iterator1 = el.iterator1 ? ("," + (el.iterator1)) : '';
  var iterator2 = el.iterator2 ? ("," + (el.iterator2)) : '';

  if (
    "development" !== 'production' &&
    maybeComponent(el) && el.tag !== 'slot' && el.tag !== 'template' && !el.key
  ) {
    warn$3(
      "<" + (el.tag) + " v-for=\"" + alias + " in " + exp + "\">: component lists rendered with " +
      "v-for should have explicit keys. " +
      "See https://vuejs.org/guide/list.html#key for more info.",
      true /* tip */
    );
  }

  el.forProcessed = true; // avoid recursion
  return "_l((" + exp + ")," +
    "function(" + alias + iterator1 + iterator2 + "){" +
      "return " + (genElement(el)) +
    '})'
}

function genData (el) {
  var data = '{';

  // directives first.
  // directives may mutate the el's other properties before they are generated.
  var dirs = genDirectives(el);
  if (dirs) { data += dirs + ','; }

  // key
  if (el.key) {
    data += "key:" + (el.key) + ",";
  }
  // ref
  if (el.ref) {
    data += "ref:" + (el.ref) + ",";
  }
  if (el.refInFor) {
    data += "refInFor:true,";
  }
  // pre
  if (el.pre) {
    data += "pre:true,";
  }
  // record original tag name for components using "is" attribute
  if (el.component) {
    data += "tag:\"" + (el.tag) + "\",";
  }
  // module data generation functions
  for (var i = 0; i < dataGenFns.length; i++) {
    data += dataGenFns[i](el);
  }
  // attributes
  if (el.attrs) {
    data += "attrs:{" + (genProps(el.attrs)) + "},";
  }
  // DOM props
  if (el.props) {
    data += "domProps:{" + (genProps(el.props)) + "},";
  }
  // event handlers
  if (el.events) {
    data += (genHandlers(el.events)) + ",";
  }
  if (el.nativeEvents) {
    data += (genHandlers(el.nativeEvents, true)) + ",";
  }
  // slot target
  if (el.slotTarget) {
    data += "slot:" + (el.slotTarget) + ",";
  }
  // scoped slots
  if (el.scopedSlots) {
    data += (genScopedSlots(el.scopedSlots)) + ",";
  }
  // component v-model
  if (el.model) {
    data += "model:{value:" + (el.model.value) + ",callback:" + (el.model.callback) + "},";
  }
  // inline-template
  if (el.inlineTemplate) {
    var inlineTemplate = genInlineTemplate(el);
    if (inlineTemplate) {
      data += inlineTemplate + ",";
    }
  }
  data = data.replace(/,$/, '') + '}';
  // v-bind data wrap
  if (el.wrapData) {
    data = el.wrapData(data);
  }
  return data
}

function genDirectives (el) {
  var dirs = el.directives;
  if (!dirs) { return }
  var res = 'directives:[';
  var hasRuntime = false;
  var i, l, dir, needRuntime;
  for (i = 0, l = dirs.length; i < l; i++) {
    dir = dirs[i];
    needRuntime = true;
    var gen = platformDirectives$1[dir.name] || baseDirectives[dir.name];
    if (gen) {
      // compile-time directive that manipulates AST.
      // returns true if it also needs a runtime counterpart.
      needRuntime = !!gen(el, dir, warn$3);
    }
    if (needRuntime) {
      hasRuntime = true;
      res += "{name:\"" + (dir.name) + "\",rawName:\"" + (dir.rawName) + "\"" + (dir.value ? (",value:(" + (dir.value) + "),expression:" + (JSON.stringify(dir.value))) : '') + (dir.arg ? (",arg:\"" + (dir.arg) + "\"") : '') + (dir.modifiers ? (",modifiers:" + (JSON.stringify(dir.modifiers))) : '') + "},";
    }
  }
  if (hasRuntime) {
    return res.slice(0, -1) + ']'
  }
}

function genInlineTemplate (el) {
  var ast = el.children[0];
  if ("development" !== 'production' && (
    el.children.length > 1 || ast.type !== 1
  )) {
    warn$3('Inline-template components must have exactly one child element.');
  }
  if (ast.type === 1) {
    var inlineRenderFns = generate(ast, currentOptions);
    return ("inlineTemplate:{render:function(){" + (inlineRenderFns.render) + "},staticRenderFns:[" + (inlineRenderFns.staticRenderFns.map(function (code) { return ("function(){" + code + "}"); }).join(',')) + "]}")
  }
}

function genScopedSlots (slots) {
  return ("scopedSlots:_u([" + (Object.keys(slots).map(function (key) { return genScopedSlot(key, slots[key]); }).join(',')) + "])")
}

function genScopedSlot (key, el) {
  return "[" + key + ",function(" + (String(el.attrsMap.scope)) + "){" +
    "return " + (el.tag === 'template'
      ? genChildren(el) || 'void 0'
      : genElement(el)) + "}]"
}

function genChildren (el, checkSkip) {
  var children = el.children;
  if (children.length) {
    var el$1 = children[0];
    // optimize single v-for
    if (children.length === 1 &&
        el$1.for &&
        el$1.tag !== 'template' &&
        el$1.tag !== 'slot') {
      return genElement(el$1)
    }
    var normalizationType = getNormalizationType(children);
    return ("[" + (children.map(genNode).join(',')) + "]" + (checkSkip
        ? normalizationType ? ("," + normalizationType) : ''
        : ''))
  }
}

// determine the normalization needed for the children array.
// 0: no normalization needed
// 1: simple normalization needed (possible 1-level deep nested array)
// 2: full normalization needed
function getNormalizationType (children) {
  var res = 0;
  for (var i = 0; i < children.length; i++) {
    var el = children[i];
    if (el.type !== 1) {
      continue
    }
    if (needsNormalization(el) ||
        (el.ifConditions && el.ifConditions.some(function (c) { return needsNormalization(c.block); }))) {
      res = 2;
      break
    }
    if (maybeComponent(el) ||
        (el.ifConditions && el.ifConditions.some(function (c) { return maybeComponent(c.block); }))) {
      res = 1;
    }
  }
  return res
}

function needsNormalization (el) {
  return el.for !== undefined || el.tag === 'template' || el.tag === 'slot'
}

function maybeComponent (el) {
  return !isPlatformReservedTag$1(el.tag)
}

function genNode (node) {
  if (node.type === 1) {
    return genElement(node)
  } else {
    return genText(node)
  }
}

function genText (text) {
  return ("_v(" + (text.type === 2
    ? text.expression // no need for () because already wrapped in _s()
    : transformSpecialNewlines(JSON.stringify(text.text))) + ")")
}

function genSlot (el) {
  var slotName = el.slotName || '"default"';
  var children = genChildren(el);
  var res = "_t(" + slotName + (children ? ("," + children) : '');
  var attrs = el.attrs && ("{" + (el.attrs.map(function (a) { return ((camelize(a.name)) + ":" + (a.value)); }).join(',')) + "}");
  var bind$$1 = el.attrsMap['v-bind'];
  if ((attrs || bind$$1) && !children) {
    res += ",null";
  }
  if (attrs) {
    res += "," + attrs;
  }
  if (bind$$1) {
    res += (attrs ? '' : ',null') + "," + bind$$1;
  }
  return res + ')'
}

// componentName is el.component, take it as argument to shun flow's pessimistic refinement
function genComponent (componentName, el) {
  var children = el.inlineTemplate ? null : genChildren(el, true);
  return ("_c(" + componentName + "," + (genData(el)) + (children ? ("," + children) : '') + ")")
}

function genProps (props) {
  var res = '';
  for (var i = 0; i < props.length; i++) {
    var prop = props[i];
    res += "\"" + (prop.name) + "\":" + (transformSpecialNewlines(prop.value)) + ",";
  }
  return res.slice(0, -1)
}

// #3895, #4268
function transformSpecialNewlines (text) {
  return text
    .replace(/\u2028/g, '\\u2028')
    .replace(/\u2029/g, '\\u2029')
}

/*  */

// operators like typeof, instanceof and in are allowed
var prohibitedKeywordRE = new RegExp('\\b' + (
  'do,if,for,let,new,try,var,case,else,with,await,break,catch,class,const,' +
  'super,throw,while,yield,delete,export,import,return,switch,default,' +
  'extends,finally,continue,debugger,function,arguments'
).split(',').join('\\b|\\b') + '\\b');
// check valid identifier for v-for
var identRE = /[A-Za-z_$][\w$]*/;
// strip strings in expressions
var stripStringRE = /'(?:[^'\\]|\\.)*'|"(?:[^"\\]|\\.)*"|`(?:[^`\\]|\\.)*\$\{|\}(?:[^`\\]|\\.)*`|`(?:[^`\\]|\\.)*`/g;

// detect problematic expressions in a template
function detectErrors (ast) {
  var errors = [];
  if (ast) {
    checkNode(ast, errors);
  }
  return errors
}

function checkNode (node, errors) {
  if (node.type === 1) {
    for (var name in node.attrsMap) {
      if (dirRE.test(name)) {
        var value = node.attrsMap[name];
        if (value) {
          if (name === 'v-for') {
            checkFor(node, ("v-for=\"" + value + "\""), errors);
          } else {
            checkExpression(value, (name + "=\"" + value + "\""), errors);
          }
        }
      }
    }
    if (node.children) {
      for (var i = 0; i < node.children.length; i++) {
        checkNode(node.children[i], errors);
      }
    }
  } else if (node.type === 2) {
    checkExpression(node.expression, node.text, errors);
  }
}

function checkFor (node, text, errors) {
  checkExpression(node.for || '', text, errors);
  checkIdentifier(node.alias, 'v-for alias', text, errors);
  checkIdentifier(node.iterator1, 'v-for iterator', text, errors);
  checkIdentifier(node.iterator2, 'v-for iterator', text, errors);
}

function checkIdentifier (ident, type, text, errors) {
  if (typeof ident === 'string' && !identRE.test(ident)) {
    errors.push(("invalid " + type + " \"" + ident + "\" in expression: " + (text.trim())));
  }
}

function checkExpression (exp, text, errors) {
  try {
    new Function(("return " + exp));
  } catch (e) {
    var keywordMatch = exp.replace(stripStringRE, '').match(prohibitedKeywordRE);
    if (keywordMatch) {
      errors.push(
        "avoid using JavaScript keyword as property name: " +
        "\"" + (keywordMatch[0]) + "\" in expression " + (text.trim())
      );
    } else {
      errors.push(("invalid expression: " + (text.trim())));
    }
  }
}

/*  */

function baseCompile (
  template,
  options
) {
  var ast = parse(template.trim(), options);
  optimize(ast, options);
  var code = generate(ast, options);
  return {
    ast: ast,
    render: code.render,
    staticRenderFns: code.staticRenderFns
  }
}

function makeFunction (code, errors) {
  try {
    return new Function(code)
  } catch (err) {
    errors.push({ err: err, code: code });
    return noop
  }
}

function createCompiler (baseOptions) {
  var functionCompileCache = Object.create(null);

  function compile (
    template,
    options
  ) {
    var finalOptions = Object.create(baseOptions);
    var errors = [];
    var tips = [];
    finalOptions.warn = function (msg, tip$$1) {
      (tip$$1 ? tips : errors).push(msg);
    };

    if (options) {
      // merge custom modules
      if (options.modules) {
        finalOptions.modules = (baseOptions.modules || []).concat(options.modules);
      }
      // merge custom directives
      if (options.directives) {
        finalOptions.directives = extend(
          Object.create(baseOptions.directives),
          options.directives
        );
      }
      // copy other options
      for (var key in options) {
        if (key !== 'modules' && key !== 'directives') {
          finalOptions[key] = options[key];
        }
      }
    }

    var compiled = baseCompile(template, finalOptions);
    {
      errors.push.apply(errors, detectErrors(compiled.ast));
    }
    compiled.errors = errors;
    compiled.tips = tips;
    return compiled
  }

  function compileToFunctions (
    template,
    options,
    vm
  ) {
    options = options || {};

    /* istanbul ignore if */
    {
      // detect possible CSP restriction
      try {
        new Function('return 1');
      } catch (e) {
        if (e.toString().match(/unsafe-eval|CSP/)) {
          warn(
            'It seems you are using the standalone build of Vue.js in an ' +
            'environment with Content Security Policy that prohibits unsafe-eval. ' +
            'The template compiler cannot work in this environment. Consider ' +
            'relaxing the policy to allow unsafe-eval or pre-compiling your ' +
            'templates into render functions.'
          );
        }
      }
    }

    // check cache
    var key = options.delimiters
      ? String(options.delimiters) + template
      : template;
    if (functionCompileCache[key]) {
      return functionCompileCache[key]
    }

    // compile
    var compiled = compile(template, options);

    // check compilation errors/tips
    {
      if (compiled.errors && compiled.errors.length) {
        warn(
          "Error compiling template:\n\n" + template + "\n\n" +
          compiled.errors.map(function (e) { return ("- " + e); }).join('\n') + '\n',
          vm
        );
      }
      if (compiled.tips && compiled.tips.length) {
        compiled.tips.forEach(function (msg) { return tip(msg, vm); });
      }
    }

    // turn code into functions
    var res = {};
    var fnGenErrors = [];
    res.render = makeFunction(compiled.render, fnGenErrors);
    var l = compiled.staticRenderFns.length;
    res.staticRenderFns = new Array(l);
    for (var i = 0; i < l; i++) {
      res.staticRenderFns[i] = makeFunction(compiled.staticRenderFns[i], fnGenErrors);
    }

    // check function generation errors.
    // this should only happen if there is a bug in the compiler itself.
    // mostly for codegen development use
    /* istanbul ignore if */
    {
      if ((!compiled.errors || !compiled.errors.length) && fnGenErrors.length) {
        warn(
          "Failed to generate render function:\n\n" +
          fnGenErrors.map(function (ref) {
            var err = ref.err;
            var code = ref.code;

            return ((err.toString()) + " in\n\n" + code + "\n");
        }).join('\n'),
          vm
        );
      }
    }

    return (functionCompileCache[key] = res)
  }

  return {
    compile: compile,
    compileToFunctions: compileToFunctions
  }
}

/*  */

function transformNode (el, options) {
  var warn = options.warn || baseWarn;
  var staticClass = getAndRemoveAttr(el, 'class');
  if ("development" !== 'production' && staticClass) {
    var expression = parseText(staticClass, options.delimiters);
    if (expression) {
      warn(
        "class=\"" + staticClass + "\": " +
        'Interpolation inside attributes has been removed. ' +
        'Use v-bind or the colon shorthand instead. For example, ' +
        'instead of <div class="{{ val }}">, use <div :class="val">.'
      );
    }
  }
  if (staticClass) {
    el.staticClass = JSON.stringify(staticClass);
  }
  var classBinding = getBindingAttr(el, 'class', false /* getStatic */);
  if (classBinding) {
    el.classBinding = classBinding;
  }
}

function genData$1 (el) {
  var data = '';
  if (el.staticClass) {
    data += "staticClass:" + (el.staticClass) + ",";
  }
  if (el.classBinding) {
    data += "class:" + (el.classBinding) + ",";
  }
  return data
}

var klass$1 = {
  staticKeys: ['staticClass'],
  transformNode: transformNode,
  genData: genData$1
};

/*  */

function transformNode$1 (el, options) {
  var warn = options.warn || baseWarn;
  var staticStyle = getAndRemoveAttr(el, 'style');
  if (staticStyle) {
    /* istanbul ignore if */
    {
      var expression = parseText(staticStyle, options.delimiters);
      if (expression) {
        warn(
          "style=\"" + staticStyle + "\": " +
          'Interpolation inside attributes has been removed. ' +
          'Use v-bind or the colon shorthand instead. For example, ' +
          'instead of <div style="{{ val }}">, use <div :style="val">.'
        );
      }
    }
    el.staticStyle = JSON.stringify(parseStyleText(staticStyle));
  }

  var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);
  if (styleBinding) {
    el.styleBinding = styleBinding;
  }
}

function genData$2 (el) {
  var data = '';
  if (el.staticStyle) {
    data += "staticStyle:" + (el.staticStyle) + ",";
  }
  if (el.styleBinding) {
    data += "style:(" + (el.styleBinding) + "),";
  }
  return data
}

var style$1 = {
  staticKeys: ['staticStyle'],
  transformNode: transformNode$1,
  genData: genData$2
};

var modules$1 = [
  klass$1,
  style$1
];

/*  */

function text (el, dir) {
  if (dir.value) {
    addProp(el, 'textContent', ("_s(" + (dir.value) + ")"));
  }
}

/*  */

function html (el, dir) {
  if (dir.value) {
    addProp(el, 'innerHTML', ("_s(" + (dir.value) + ")"));
  }
}

var directives$1 = {
  model: model,
  text: text,
  html: html
};

/*  */

var baseOptions = {
  expectHTML: true,
  modules: modules$1,
  directives: directives$1,
  isPreTag: isPreTag,
  isUnaryTag: isUnaryTag,
  mustUseProp: mustUseProp,
  isReservedTag: isReservedTag,
  getTagNamespace: getTagNamespace,
  staticKeys: genStaticKeys(modules$1)
};

var ref$1 = createCompiler(baseOptions);
var compileToFunctions = ref$1.compileToFunctions;

/*  */

var idToTemplate = cached(function (id) {
  var el = query(id);
  return el && el.innerHTML
});

var mount = Vue$3.prototype.$mount;
Vue$3.prototype.$mount = function (
  el,
  hydrating
) {
  el = el && query(el);

  /* istanbul ignore if */
  if (el === document.body || el === document.documentElement) {
    "development" !== 'production' && warn(
      "Do not mount Vue to <html> or <body> - mount to normal elements instead."
    );
    return this
  }

  var options = this.$options;
  // resolve template/el and convert to render function
  if (!options.render) {
    var template = options.template;
    if (template) {
      if (typeof template === 'string') {
        if (template.charAt(0) === '#') {
          template = idToTemplate(template);
          /* istanbul ignore if */
          if ("development" !== 'production' && !template) {
            warn(
              ("Template element not found or is empty: " + (options.template)),
              this
            );
          }
        }
      } else if (template.nodeType) {
        template = template.innerHTML;
      } else {
        {
          warn('invalid template option:' + template, this);
        }
        return this
      }
    } else if (el) {
      template = getOuterHTML(el);
    }
    if (template) {
      /* istanbul ignore if */
      if ("development" !== 'production' && config.performance && perf) {
        perf.mark('compile');
      }

      var ref = compileToFunctions(template, {
        shouldDecodeNewlines: shouldDecodeNewlines,
        delimiters: options.delimiters
      }, this);
      var render = ref.render;
      var staticRenderFns = ref.staticRenderFns;
      options.render = render;
      options.staticRenderFns = staticRenderFns;

      /* istanbul ignore if */
      if ("development" !== 'production' && config.performance && perf) {
        perf.mark('compile end');
        perf.measure(((this._name) + " compile"), 'compile', 'compile end');
      }
    }
  }
  return mount.call(this, el, hydrating)
};

/**
 * Get outerHTML of elements, taking care
 * of SVG elements in IE as well.
 */
function getOuterHTML (el) {
  if (el.outerHTML) {
    return el.outerHTML
  } else {
    var container = document.createElement('div');
    container.appendChild(el.cloneNode(true));
    return container.innerHTML
  }
}

Vue$3.compile = compileToFunctions;

return Vue$3;

})));

/*! tether 1.3.3 */

(function(root, factory) {
  if (typeof define === 'function' && define.amd) {
    define(factory);
  } else if (typeof exports === 'object') {
    module.exports = factory(require, exports, module);
  } else {
    root.Tether = factory();
  }
}(this, function(require, exports, module) {

'use strict';

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

var TetherBase = undefined;
if (typeof TetherBase === 'undefined') {
  TetherBase = { modules: [] };
}

var zeroElement = null;

// Same as native getBoundingClientRect, except it takes into account parent <frame> offsets
// if the element lies within a nested document (<frame> or <iframe>-like).
function getActualBoundingClientRect(node) {
  var boundingRect = node.getBoundingClientRect();

  // The original object returned by getBoundingClientRect is immutable, so we clone it
  // We can't use extend because the properties are not considered part of the object by hasOwnProperty in IE9
  var rect = {};
  for (var k in boundingRect) {
    rect[k] = boundingRect[k];
  }

  if (node.ownerDocument !== document) {
    var _frameElement = node.ownerDocument.defaultView.frameElement;
    if (_frameElement) {
      var frameRect = getActualBoundingClientRect(_frameElement);
      rect.top += frameRect.top;
      rect.bottom += frameRect.top;
      rect.left += frameRect.left;
      rect.right += frameRect.left;
    }
  }

  return rect;
}

function getScrollParents(el) {
  // In firefox if the el is inside an iframe with display: none; window.getComputedStyle() will return null;
  // https://bugzilla.mozilla.org/show_bug.cgi?id=548397
  var computedStyle = getComputedStyle(el) || {};
  var position = computedStyle.position;
  var parents = [];

  if (position === 'fixed') {
    return [el];
  }

  var parent = el;
  while ((parent = parent.parentNode) && parent && parent.nodeType === 1) {
    var style = undefined;
    try {
      style = getComputedStyle(parent);
    } catch (err) {}

    if (typeof style === 'undefined' || style === null) {
      parents.push(parent);
      return parents;
    }

    var _style = style;
    var overflow = _style.overflow;
    var overflowX = _style.overflowX;
    var overflowY = _style.overflowY;

    if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
      if (position !== 'absolute' || ['relative', 'absolute', 'fixed'].indexOf(style.position) >= 0) {
        parents.push(parent);
      }
    }
  }

  parents.push(el.ownerDocument.body);

  // If the node is within a frame, account for the parent window scroll
  if (el.ownerDocument !== document) {
    parents.push(el.ownerDocument.defaultView);
  }

  return parents;
}

var uniqueId = (function () {
  var id = 0;
  return function () {
    return ++id;
  };
})();

var zeroPosCache = {};
var getOrigin = function getOrigin() {
  // getBoundingClientRect is unfortunately too accurate.  It introduces a pixel or two of
  // jitter as the user scrolls that messes with our ability to detect if two positions
  // are equivilant or not.  We place an element at the top left of the page that will
  // get the same jitter, so we can cancel the two out.
  var node = zeroElement;
  if (!node) {
    node = document.createElement('div');
    node.setAttribute('data-tether-id', uniqueId());
    extend(node.style, {
      top: 0,
      left: 0,
      position: 'absolute'
    });

    document.body.appendChild(node);

    zeroElement = node;
  }

  var id = node.getAttribute('data-tether-id');
  if (typeof zeroPosCache[id] === 'undefined') {
    zeroPosCache[id] = getActualBoundingClientRect(node);

    // Clear the cache when this position call is done
    defer(function () {
      delete zeroPosCache[id];
    });
  }

  return zeroPosCache[id];
};

function removeUtilElements() {
  if (zeroElement) {
    document.body.removeChild(zeroElement);
  }
  zeroElement = null;
};

function getBounds(el) {
  var doc = undefined;
  if (el === document) {
    doc = document;
    el = document.documentElement;
  } else {
    doc = el.ownerDocument;
  }

  var docEl = doc.documentElement;

  var box = getActualBoundingClientRect(el);

  var origin = getOrigin();

  box.top -= origin.top;
  box.left -= origin.left;

  if (typeof box.width === 'undefined') {
    box.width = document.body.scrollWidth - box.left - box.right;
  }
  if (typeof box.height === 'undefined') {
    box.height = document.body.scrollHeight - box.top - box.bottom;
  }

  box.top = box.top - docEl.clientTop;
  box.left = box.left - docEl.clientLeft;
  box.right = doc.body.clientWidth - box.width - box.left;
  box.bottom = doc.body.clientHeight - box.height - box.top;

  return box;
}

function getOffsetParent(el) {
  return el.offsetParent || document.documentElement;
}

function getScrollBarSize() {
  var inner = document.createElement('div');
  inner.style.width = '100%';
  inner.style.height = '200px';

  var outer = document.createElement('div');
  extend(outer.style, {
    position: 'absolute',
    top: 0,
    left: 0,
    pointerEvents: 'none',
    visibility: 'hidden',
    width: '200px',
    height: '150px',
    overflow: 'hidden'
  });

  outer.appendChild(inner);

  document.body.appendChild(outer);

  var widthContained = inner.offsetWidth;
  outer.style.overflow = 'scroll';
  var widthScroll = inner.offsetWidth;

  if (widthContained === widthScroll) {
    widthScroll = outer.clientWidth;
  }

  document.body.removeChild(outer);

  var width = widthContained - widthScroll;

  return { width: width, height: width };
}

function extend() {
  var out = arguments.length <= 0 || arguments[0] === undefined ? {} : arguments[0];

  var args = [];

  Array.prototype.push.apply(args, arguments);

  args.slice(1).forEach(function (obj) {
    if (obj) {
      for (var key in obj) {
        if (({}).hasOwnProperty.call(obj, key)) {
          out[key] = obj[key];
        }
      }
    }
  });

  return out;
}

function removeClass(el, name) {
  if (typeof el.classList !== 'undefined') {
    name.split(' ').forEach(function (cls) {
      if (cls.trim()) {
        el.classList.remove(cls);
      }
    });
  } else {
    var regex = new RegExp('(^| )' + name.split(' ').join('|') + '( |$)', 'gi');
    var className = getClassName(el).replace(regex, ' ');
    setClassName(el, className);
  }
}

function addClass(el, name) {
  if (typeof el.classList !== 'undefined') {
    name.split(' ').forEach(function (cls) {
      if (cls.trim()) {
        el.classList.add(cls);
      }
    });
  } else {
    removeClass(el, name);
    var cls = getClassName(el) + (' ' + name);
    setClassName(el, cls);
  }
}

function hasClass(el, name) {
  if (typeof el.classList !== 'undefined') {
    return el.classList.contains(name);
  }
  var className = getClassName(el);
  return new RegExp('(^| )' + name + '( |$)', 'gi').test(className);
}

function getClassName(el) {
  // Can't use just SVGAnimatedString here since nodes within a Frame in IE have
  // completely separately SVGAnimatedString base classes
  if (el.className instanceof el.ownerDocument.defaultView.SVGAnimatedString) {
    return el.className.baseVal;
  }
  return el.className;
}

function setClassName(el, className) {
  el.setAttribute('class', className);
}

function updateClasses(el, add, all) {
  // Of the set of 'all' classes, we need the 'add' classes, and only the
  // 'add' classes to be set.
  all.forEach(function (cls) {
    if (add.indexOf(cls) === -1 && hasClass(el, cls)) {
      removeClass(el, cls);
    }
  });

  add.forEach(function (cls) {
    if (!hasClass(el, cls)) {
      addClass(el, cls);
    }
  });
}

var deferred = [];

var defer = function defer(fn) {
  deferred.push(fn);
};

var flush = function flush() {
  var fn = undefined;
  while (fn = deferred.pop()) {
    fn();
  }
};

var Evented = (function () {
  function Evented() {
    _classCallCheck(this, Evented);
  }

  _createClass(Evented, [{
    key: 'on',
    value: function on(event, handler, ctx) {
      var once = arguments.length <= 3 || arguments[3] === undefined ? false : arguments[3];

      if (typeof this.bindings === 'undefined') {
        this.bindings = {};
      }
      if (typeof this.bindings[event] === 'undefined') {
        this.bindings[event] = [];
      }
      this.bindings[event].push({ handler: handler, ctx: ctx, once: once });
    }
  }, {
    key: 'once',
    value: function once(event, handler, ctx) {
      this.on(event, handler, ctx, true);
    }
  }, {
    key: 'off',
    value: function off(event, handler) {
      if (typeof this.bindings === 'undefined' || typeof this.bindings[event] === 'undefined') {
        return;
      }

      if (typeof handler === 'undefined') {
        delete this.bindings[event];
      } else {
        var i = 0;
        while (i < this.bindings[event].length) {
          if (this.bindings[event][i].handler === handler) {
            this.bindings[event].splice(i, 1);
          } else {
            ++i;
          }
        }
      }
    }
  }, {
    key: 'trigger',
    value: function trigger(event) {
      if (typeof this.bindings !== 'undefined' && this.bindings[event]) {
        var i = 0;

        for (var _len = arguments.length, args = Array(_len > 1 ? _len - 1 : 0), _key = 1; _key < _len; _key++) {
          args[_key - 1] = arguments[_key];
        }

        while (i < this.bindings[event].length) {
          var _bindings$event$i = this.bindings[event][i];
          var handler = _bindings$event$i.handler;
          var ctx = _bindings$event$i.ctx;
          var once = _bindings$event$i.once;

          var context = ctx;
          if (typeof context === 'undefined') {
            context = this;
          }

          handler.apply(context, args);

          if (once) {
            this.bindings[event].splice(i, 1);
          } else {
            ++i;
          }
        }
      }
    }
  }]);

  return Evented;
})();

TetherBase.Utils = {
  getActualBoundingClientRect: getActualBoundingClientRect,
  getScrollParents: getScrollParents,
  getBounds: getBounds,
  getOffsetParent: getOffsetParent,
  extend: extend,
  addClass: addClass,
  removeClass: removeClass,
  hasClass: hasClass,
  updateClasses: updateClasses,
  defer: defer,
  flush: flush,
  uniqueId: uniqueId,
  Evented: Evented,
  getScrollBarSize: getScrollBarSize,
  removeUtilElements: removeUtilElements
};
/* globals TetherBase, performance */

'use strict';

var _slicedToArray = (function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }; })();

var _createClass = (function () { function defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ('value' in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } } return function (Constructor, protoProps, staticProps) { if (protoProps) defineProperties(Constructor.prototype, protoProps); if (staticProps) defineProperties(Constructor, staticProps); return Constructor; }; })();

var _get = function get(_x6, _x7, _x8) { var _again = true; _function: while (_again) { var object = _x6, property = _x7, receiver = _x8; _again = false; if (object === null) object = Function.prototype; var desc = Object.getOwnPropertyDescriptor(object, property); if (desc === undefined) { var parent = Object.getPrototypeOf(object); if (parent === null) { return undefined; } else { _x6 = parent; _x7 = property; _x8 = receiver; _again = true; desc = parent = undefined; continue _function; } } else if ('value' in desc) { return desc.value; } else { var getter = desc.get; if (getter === undefined) { return undefined; } return getter.call(receiver); } } };

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError('Cannot call a class as a function'); } }

function _inherits(subClass, superClass) { if (typeof superClass !== 'function' && superClass !== null) { throw new TypeError('Super expression must either be null or a function, not ' + typeof superClass); } subClass.prototype = Object.create(superClass && superClass.prototype, { constructor: { value: subClass, enumerable: false, writable: true, configurable: true } }); if (superClass) Object.setPrototypeOf ? Object.setPrototypeOf(subClass, superClass) : subClass.__proto__ = superClass; }

if (typeof TetherBase === 'undefined') {
  throw new Error('You must include the utils.js file before tether.js');
}

var _TetherBase$Utils = TetherBase.Utils;
var getScrollParents = _TetherBase$Utils.getScrollParents;
var getBounds = _TetherBase$Utils.getBounds;
var getOffsetParent = _TetherBase$Utils.getOffsetParent;
var extend = _TetherBase$Utils.extend;
var addClass = _TetherBase$Utils.addClass;
var removeClass = _TetherBase$Utils.removeClass;
var updateClasses = _TetherBase$Utils.updateClasses;
var defer = _TetherBase$Utils.defer;
var flush = _TetherBase$Utils.flush;
var getScrollBarSize = _TetherBase$Utils.getScrollBarSize;
var removeUtilElements = _TetherBase$Utils.removeUtilElements;

function within(a, b) {
  var diff = arguments.length <= 2 || arguments[2] === undefined ? 1 : arguments[2];

  return a + diff >= b && b >= a - diff;
}

var transformKey = (function () {
  if (typeof document === 'undefined') {
    return '';
  }
  var el = document.createElement('div');

  var transforms = ['transform', 'WebkitTransform', 'OTransform', 'MozTransform', 'msTransform'];
  for (var i = 0; i < transforms.length; ++i) {
    var key = transforms[i];
    if (el.style[key] !== undefined) {
      return key;
    }
  }
})();

var tethers = [];

var position = function position() {
  tethers.forEach(function (tether) {
    tether.position(false);
  });
  flush();
};

function now() {
  if (typeof performance !== 'undefined' && typeof performance.now !== 'undefined') {
    return performance.now();
  }
  return +new Date();
}

(function () {
  var lastCall = null;
  var lastDuration = null;
  var pendingTimeout = null;

  var tick = function tick() {
    if (typeof lastDuration !== 'undefined' && lastDuration > 16) {
      // We voluntarily throttle ourselves if we can't manage 60fps
      lastDuration = Math.min(lastDuration - 16, 250);

      // Just in case this is the last event, remember to position just once more
      pendingTimeout = setTimeout(tick, 250);
      return;
    }

    if (typeof lastCall !== 'undefined' && now() - lastCall < 10) {
      // Some browsers call events a little too frequently, refuse to run more than is reasonable
      return;
    }

    if (pendingTimeout != null) {
      clearTimeout(pendingTimeout);
      pendingTimeout = null;
    }

    lastCall = now();
    position();
    lastDuration = now() - lastCall;
  };

  if (typeof window !== 'undefined' && typeof window.addEventListener !== 'undefined') {
    ['resize', 'scroll', 'touchmove'].forEach(function (event) {
      window.addEventListener(event, tick);
    });
  }
})();

var MIRROR_LR = {
  center: 'center',
  left: 'right',
  right: 'left'
};

var MIRROR_TB = {
  middle: 'middle',
  top: 'bottom',
  bottom: 'top'
};

var OFFSET_MAP = {
  top: 0,
  left: 0,
  middle: '50%',
  center: '50%',
  bottom: '100%',
  right: '100%'
};

var autoToFixedAttachment = function autoToFixedAttachment(attachment, relativeToAttachment) {
  var left = attachment.left;
  var top = attachment.top;

  if (left === 'auto') {
    left = MIRROR_LR[relativeToAttachment.left];
  }

  if (top === 'auto') {
    top = MIRROR_TB[relativeToAttachment.top];
  }

  return { left: left, top: top };
};

var attachmentToOffset = function attachmentToOffset(attachment) {
  var left = attachment.left;
  var top = attachment.top;

  if (typeof OFFSET_MAP[attachment.left] !== 'undefined') {
    left = OFFSET_MAP[attachment.left];
  }

  if (typeof OFFSET_MAP[attachment.top] !== 'undefined') {
    top = OFFSET_MAP[attachment.top];
  }

  return { left: left, top: top };
};

function addOffset() {
  var out = { top: 0, left: 0 };

  for (var _len = arguments.length, offsets = Array(_len), _key = 0; _key < _len; _key++) {
    offsets[_key] = arguments[_key];
  }

  offsets.forEach(function (_ref) {
    var top = _ref.top;
    var left = _ref.left;

    if (typeof top === 'string') {
      top = parseFloat(top, 10);
    }
    if (typeof left === 'string') {
      left = parseFloat(left, 10);
    }

    out.top += top;
    out.left += left;
  });

  return out;
}

function offsetToPx(offset, size) {
  if (typeof offset.left === 'string' && offset.left.indexOf('%') !== -1) {
    offset.left = parseFloat(offset.left, 10) / 100 * size.width;
  }
  if (typeof offset.top === 'string' && offset.top.indexOf('%') !== -1) {
    offset.top = parseFloat(offset.top, 10) / 100 * size.height;
  }

  return offset;
}

var parseOffset = function parseOffset(value) {
  var _value$split = value.split(' ');

  var _value$split2 = _slicedToArray(_value$split, 2);

  var top = _value$split2[0];
  var left = _value$split2[1];

  return { top: top, left: left };
};
var parseAttachment = parseOffset;

var TetherClass = (function (_Evented) {
  _inherits(TetherClass, _Evented);

  function TetherClass(options) {
    var _this = this;

    _classCallCheck(this, TetherClass);

    _get(Object.getPrototypeOf(TetherClass.prototype), 'constructor', this).call(this);
    this.position = this.position.bind(this);

    tethers.push(this);

    this.history = [];

    this.setOptions(options, false);

    TetherBase.modules.forEach(function (module) {
      if (typeof module.initialize !== 'undefined') {
        module.initialize.call(_this);
      }
    });

    this.position();
  }

  _createClass(TetherClass, [{
    key: 'getClass',
    value: function getClass() {
      var key = arguments.length <= 0 || arguments[0] === undefined ? '' : arguments[0];
      var classes = this.options.classes;

      if (typeof classes !== 'undefined' && classes[key]) {
        return this.options.classes[key];
      } else if (this.options.classPrefix) {
        return this.options.classPrefix + '-' + key;
      } else {
        return key;
      }
    }
  }, {
    key: 'setOptions',
    value: function setOptions(options) {
      var _this2 = this;

      var pos = arguments.length <= 1 || arguments[1] === undefined ? true : arguments[1];

      var defaults = {
        offset: '0 0',
        targetOffset: '0 0',
        targetAttachment: 'auto auto',
        classPrefix: 'tether'
      };

      this.options = extend(defaults, options);

      var _options = this.options;
      var element = _options.element;
      var target = _options.target;
      var targetModifier = _options.targetModifier;

      this.element = element;
      this.target = target;
      this.targetModifier = targetModifier;

      if (this.target === 'viewport') {
        this.target = document.body;
        this.targetModifier = 'visible';
      } else if (this.target === 'scroll-handle') {
        this.target = document.body;
        this.targetModifier = 'scroll-handle';
      }

      ['element', 'target'].forEach(function (key) {
        if (typeof _this2[key] === 'undefined') {
          throw new Error('Tether Error: Both element and target must be defined');
        }

        if (typeof _this2[key].jquery !== 'undefined') {
          _this2[key] = _this2[key][0];
        } else if (typeof _this2[key] === 'string') {
          _this2[key] = document.querySelector(_this2[key]);
        }
      });

      addClass(this.element, this.getClass('element'));
      if (!(this.options.addTargetClasses === false)) {
        addClass(this.target, this.getClass('target'));
      }

      if (!this.options.attachment) {
        throw new Error('Tether Error: You must provide an attachment');
      }

      this.targetAttachment = parseAttachment(this.options.targetAttachment);
      this.attachment = parseAttachment(this.options.attachment);
      this.offset = parseOffset(this.options.offset);
      this.targetOffset = parseOffset(this.options.targetOffset);

      if (typeof this.scrollParents !== 'undefined') {
        this.disable();
      }

      if (this.targetModifier === 'scroll-handle') {
        this.scrollParents = [this.target];
      } else {
        this.scrollParents = getScrollParents(this.target);
      }

      if (!(this.options.enabled === false)) {
        this.enable(pos);
      }
    }
  }, {
    key: 'getTargetBounds',
    value: function getTargetBounds() {
      if (typeof this.targetModifier !== 'undefined') {
        if (this.targetModifier === 'visible') {
          if (this.target === document.body) {
            return { top: pageYOffset, left: pageXOffset, height: innerHeight, width: innerWidth };
          } else {
            var bounds = getBounds(this.target);

            var out = {
              height: bounds.height,
              width: bounds.width,
              top: bounds.top,
              left: bounds.left
            };

            out.height = Math.min(out.height, bounds.height - (pageYOffset - bounds.top));
            out.height = Math.min(out.height, bounds.height - (bounds.top + bounds.height - (pageYOffset + innerHeight)));
            out.height = Math.min(innerHeight, out.height);
            out.height -= 2;

            out.width = Math.min(out.width, bounds.width - (pageXOffset - bounds.left));
            out.width = Math.min(out.width, bounds.width - (bounds.left + bounds.width - (pageXOffset + innerWidth)));
            out.width = Math.min(innerWidth, out.width);
            out.width -= 2;

            if (out.top < pageYOffset) {
              out.top = pageYOffset;
            }
            if (out.left < pageXOffset) {
              out.left = pageXOffset;
            }

            return out;
          }
        } else if (this.targetModifier === 'scroll-handle') {
          var bounds = undefined;
          var target = this.target;
          if (target === document.body) {
            target = document.documentElement;

            bounds = {
              left: pageXOffset,
              top: pageYOffset,
              height: innerHeight,
              width: innerWidth
            };
          } else {
            bounds = getBounds(target);
          }

          var style = getComputedStyle(target);

          var hasBottomScroll = target.scrollWidth > target.clientWidth || [style.overflow, style.overflowX].indexOf('scroll') >= 0 || this.target !== document.body;

          var scrollBottom = 0;
          if (hasBottomScroll) {
            scrollBottom = 15;
          }

          var height = bounds.height - parseFloat(style.borderTopWidth) - parseFloat(style.borderBottomWidth) - scrollBottom;

          var out = {
            width: 15,
            height: height * 0.975 * (height / target.scrollHeight),
            left: bounds.left + bounds.width - parseFloat(style.borderLeftWidth) - 15
          };

          var fitAdj = 0;
          if (height < 408 && this.target === document.body) {
            fitAdj = -0.00011 * Math.pow(height, 2) - 0.00727 * height + 22.58;
          }

          if (this.target !== document.body) {
            out.height = Math.max(out.height, 24);
          }

          var scrollPercentage = this.target.scrollTop / (target.scrollHeight - height);
          out.top = scrollPercentage * (height - out.height - fitAdj) + bounds.top + parseFloat(style.borderTopWidth);

          if (this.target === document.body) {
            out.height = Math.max(out.height, 24);
          }

          return out;
        }
      } else {
        return getBounds(this.target);
      }
    }
  }, {
    key: 'clearCache',
    value: function clearCache() {
      this._cache = {};
    }
  }, {
    key: 'cache',
    value: function cache(k, getter) {
      // More than one module will often need the same DOM info, so
      // we keep a cache which is cleared on each position call
      if (typeof this._cache === 'undefined') {
        this._cache = {};
      }

      if (typeof this._cache[k] === 'undefined') {
        this._cache[k] = getter.call(this);
      }

      return this._cache[k];
    }
  }, {
    key: 'enable',
    value: function enable() {
      var _this3 = this;

      var pos = arguments.length <= 0 || arguments[0] === undefined ? true : arguments[0];

      if (!(this.options.addTargetClasses === false)) {
        addClass(this.target, this.getClass('enabled'));
      }
      addClass(this.element, this.getClass('enabled'));
      this.enabled = true;

      this.scrollParents.forEach(function (parent) {
        if (parent !== _this3.target.ownerDocument) {
          parent.addEventListener('scroll', _this3.position);
        }
      });

      if (pos) {
        this.position();
      }
    }
  }, {
    key: 'disable',
    value: function disable() {
      var _this4 = this;

      removeClass(this.target, this.getClass('enabled'));
      removeClass(this.element, this.getClass('enabled'));
      this.enabled = false;

      if (typeof this.scrollParents !== 'undefined') {
        this.scrollParents.forEach(function (parent) {
          parent.removeEventListener('scroll', _this4.position);
        });
      }
    }
  }, {
    key: 'destroy',
    value: function destroy() {
      var _this5 = this;

      this.disable();

      tethers.forEach(function (tether, i) {
        if (tether === _this5) {
          tethers.splice(i, 1);
        }
      });

      // Remove any elements we were using for convenience from the DOM
      if (tethers.length === 0) {
        removeUtilElements();
      }
    }
  }, {
    key: 'updateAttachClasses',
    value: function updateAttachClasses(elementAttach, targetAttach) {
      var _this6 = this;

      elementAttach = elementAttach || this.attachment;
      targetAttach = targetAttach || this.targetAttachment;
      var sides = ['left', 'top', 'bottom', 'right', 'middle', 'center'];

      if (typeof this._addAttachClasses !== 'undefined' && this._addAttachClasses.length) {
        // updateAttachClasses can be called more than once in a position call, so
        // we need to clean up after ourselves such that when the last defer gets
        // ran it doesn't add any extra classes from previous calls.
        this._addAttachClasses.splice(0, this._addAttachClasses.length);
      }

      if (typeof this._addAttachClasses === 'undefined') {
        this._addAttachClasses = [];
      }
      var add = this._addAttachClasses;

      if (elementAttach.top) {
        add.push(this.getClass('element-attached') + '-' + elementAttach.top);
      }
      if (elementAttach.left) {
        add.push(this.getClass('element-attached') + '-' + elementAttach.left);
      }
      if (targetAttach.top) {
        add.push(this.getClass('target-attached') + '-' + targetAttach.top);
      }
      if (targetAttach.left) {
        add.push(this.getClass('target-attached') + '-' + targetAttach.left);
      }

      var all = [];
      sides.forEach(function (side) {
        all.push(_this6.getClass('element-attached') + '-' + side);
        all.push(_this6.getClass('target-attached') + '-' + side);
      });

      defer(function () {
        if (!(typeof _this6._addAttachClasses !== 'undefined')) {
          return;
        }

        updateClasses(_this6.element, _this6._addAttachClasses, all);
        if (!(_this6.options.addTargetClasses === false)) {
          updateClasses(_this6.target, _this6._addAttachClasses, all);
        }

        delete _this6._addAttachClasses;
      });
    }
  }, {
    key: 'position',
    value: function position() {
      var _this7 = this;

      var flushChanges = arguments.length <= 0 || arguments[0] === undefined ? true : arguments[0];

      // flushChanges commits the changes immediately, leave true unless you are positioning multiple
      // tethers (in which case call Tether.Utils.flush yourself when you're done)

      if (!this.enabled) {
        return;
      }

      this.clearCache();

      // Turn 'auto' attachments into the appropriate corner or edge
      var targetAttachment = autoToFixedAttachment(this.targetAttachment, this.attachment);

      this.updateAttachClasses(this.attachment, targetAttachment);

      var elementPos = this.cache('element-bounds', function () {
        return getBounds(_this7.element);
      });

      var width = elementPos.width;
      var height = elementPos.height;

      if (width === 0 && height === 0 && typeof this.lastSize !== 'undefined') {
        var _lastSize = this.lastSize;

        // We cache the height and width to make it possible to position elements that are
        // getting hidden.
        width = _lastSize.width;
        height = _lastSize.height;
      } else {
        this.lastSize = { width: width, height: height };
      }

      var targetPos = this.cache('target-bounds', function () {
        return _this7.getTargetBounds();
      });
      var targetSize = targetPos;

      // Get an actual px offset from the attachment
      var offset = offsetToPx(attachmentToOffset(this.attachment), { width: width, height: height });
      var targetOffset = offsetToPx(attachmentToOffset(targetAttachment), targetSize);

      var manualOffset = offsetToPx(this.offset, { width: width, height: height });
      var manualTargetOffset = offsetToPx(this.targetOffset, targetSize);

      // Add the manually provided offset
      offset = addOffset(offset, manualOffset);
      targetOffset = addOffset(targetOffset, manualTargetOffset);

      // It's now our goal to make (element position + offset) == (target position + target offset)
      var left = targetPos.left + targetOffset.left - offset.left;
      var top = targetPos.top + targetOffset.top - offset.top;

      for (var i = 0; i < TetherBase.modules.length; ++i) {
        var _module2 = TetherBase.modules[i];
        var ret = _module2.position.call(this, {
          left: left,
          top: top,
          targetAttachment: targetAttachment,
          targetPos: targetPos,
          elementPos: elementPos,
          offset: offset,
          targetOffset: targetOffset,
          manualOffset: manualOffset,
          manualTargetOffset: manualTargetOffset,
          scrollbarSize: scrollbarSize,
          attachment: this.attachment
        });

        if (ret === false) {
          return false;
        } else if (typeof ret === 'undefined' || typeof ret !== 'object') {
          continue;
        } else {
          top = ret.top;
          left = ret.left;
        }
      }

      // We describe the position three different ways to give the optimizer
      // a chance to decide the best possible way to position the element
      // with the fewest repaints.
      var next = {
        // It's position relative to the page (absolute positioning when
        // the element is a child of the body)
        page: {
          top: top,
          left: left
        },

        // It's position relative to the viewport (fixed positioning)
        viewport: {
          top: top - pageYOffset,
          bottom: pageYOffset - top - height + innerHeight,
          left: left - pageXOffset,
          right: pageXOffset - left - width + innerWidth
        }
      };

      var doc = this.target.ownerDocument;
      var win = doc.defaultView;

      var scrollbarSize = undefined;
      if (doc.body.scrollWidth > win.innerWidth) {
        scrollbarSize = this.cache('scrollbar-size', getScrollBarSize);
        next.viewport.bottom -= scrollbarSize.height;
      }

      if (doc.body.scrollHeight > win.innerHeight) {
        scrollbarSize = this.cache('scrollbar-size', getScrollBarSize);
        next.viewport.right -= scrollbarSize.width;
      }

      if (['', 'static'].indexOf(doc.body.style.position) === -1 || ['', 'static'].indexOf(doc.body.parentElement.style.position) === -1) {
        // Absolute positioning in the body will be relative to the page, not the 'initial containing block'
        next.page.bottom = doc.body.scrollHeight - top - height;
        next.page.right = doc.body.scrollWidth - left - width;
      }

      if (typeof this.options.optimizations !== 'undefined' && this.options.optimizations.moveElement !== false && !(typeof this.targetModifier !== 'undefined')) {
        (function () {
          var offsetParent = _this7.cache('target-offsetparent', function () {
            return getOffsetParent(_this7.target);
          });
          var offsetPosition = _this7.cache('target-offsetparent-bounds', function () {
            return getBounds(offsetParent);
          });
          var offsetParentStyle = getComputedStyle(offsetParent);
          var offsetParentSize = offsetPosition;

          var offsetBorder = {};
          ['Top', 'Left', 'Bottom', 'Right'].forEach(function (side) {
            offsetBorder[side.toLowerCase()] = parseFloat(offsetParentStyle['border' + side + 'Width']);
          });

          offsetPosition.right = doc.body.scrollWidth - offsetPosition.left - offsetParentSize.width + offsetBorder.right;
          offsetPosition.bottom = doc.body.scrollHeight - offsetPosition.top - offsetParentSize.height + offsetBorder.bottom;

          if (next.page.top >= offsetPosition.top + offsetBorder.top && next.page.bottom >= offsetPosition.bottom) {
            if (next.page.left >= offsetPosition.left + offsetBorder.left && next.page.right >= offsetPosition.right) {
              // We're within the visible part of the target's scroll parent
              var scrollTop = offsetParent.scrollTop;
              var scrollLeft = offsetParent.scrollLeft;

              // It's position relative to the target's offset parent (absolute positioning when
              // the element is moved to be a child of the target's offset parent).
              next.offset = {
                top: next.page.top - offsetPosition.top + scrollTop - offsetBorder.top,
                left: next.page.left - offsetPosition.left + scrollLeft - offsetBorder.left
              };
            }
          }
        })();
      }

      // We could also travel up the DOM and try each containing context, rather than only
      // looking at the body, but we're gonna get diminishing returns.

      this.move(next);

      this.history.unshift(next);

      if (this.history.length > 3) {
        this.history.pop();
      }

      if (flushChanges) {
        flush();
      }

      return true;
    }

    // THE ISSUE
  }, {
    key: 'move',
    value: function move(pos) {
      var _this8 = this;

      if (!(typeof this.element.parentNode !== 'undefined')) {
        return;
      }

      var same = {};

      for (var type in pos) {
        same[type] = {};

        for (var key in pos[type]) {
          var found = false;

          for (var i = 0; i < this.history.length; ++i) {
            var point = this.history[i];
            if (typeof point[type] !== 'undefined' && !within(point[type][key], pos[type][key])) {
              found = true;
              break;
            }
          }

          if (!found) {
            same[type][key] = true;
          }
        }
      }

      var css = { top: '', left: '', right: '', bottom: '' };

      var transcribe = function transcribe(_same, _pos) {
        var hasOptimizations = typeof _this8.options.optimizations !== 'undefined';
        var gpu = hasOptimizations ? _this8.options.optimizations.gpu : null;
        if (gpu !== false) {
          var yPos = undefined,
              xPos = undefined;
          if (_same.top) {
            css.top = 0;
            yPos = _pos.top;
          } else {
            css.bottom = 0;
            yPos = -_pos.bottom;
          }

          if (_same.left) {
            css.left = 0;
            xPos = _pos.left;
          } else {
            css.right = 0;
            xPos = -_pos.right;
          }

          css[transformKey] = 'translateX(' + Math.round(xPos) + 'px) translateY(' + Math.round(yPos) + 'px)';

          if (transformKey !== 'msTransform') {
            // The Z transform will keep this in the GPU (faster, and prevents artifacts),
            // but IE9 doesn't support 3d transforms and will choke.
            css[transformKey] += " translateZ(0)";
          }
        } else {
          if (_same.top) {
            css.top = _pos.top + 'px';
          } else {
            css.bottom = _pos.bottom + 'px';
          }

          if (_same.left) {
            css.left = _pos.left + 'px';
          } else {
            css.right = _pos.right + 'px';
          }
        }
      };

      var moved = false;
      if ((same.page.top || same.page.bottom) && (same.page.left || same.page.right)) {
        css.position = 'absolute';
        transcribe(same.page, pos.page);
      } else if ((same.viewport.top || same.viewport.bottom) && (same.viewport.left || same.viewport.right)) {
        css.position = 'fixed';
        transcribe(same.viewport, pos.viewport);
      } else if (typeof same.offset !== 'undefined' && same.offset.top && same.offset.left) {
        (function () {
          css.position = 'absolute';
          var offsetParent = _this8.cache('target-offsetparent', function () {
            return getOffsetParent(_this8.target);
          });

          if (getOffsetParent(_this8.element) !== offsetParent) {
            defer(function () {
              _this8.element.parentNode.removeChild(_this8.element);
              offsetParent.appendChild(_this8.element);
            });
          }

          transcribe(same.offset, pos.offset);
          moved = true;
        })();
      } else {
        css.position = 'absolute';
        transcribe({ top: true, left: true }, pos.page);
      }

      if (!moved) {
        var offsetParentIsBody = true;
        var currentNode = this.element.parentNode;
        while (currentNode && currentNode.nodeType === 1 && currentNode.tagName !== 'BODY') {
          if (getComputedStyle(currentNode).position !== 'static') {
            offsetParentIsBody = false;
            break;
          }

          currentNode = currentNode.parentNode;
        }

        if (!offsetParentIsBody) {
          this.element.parentNode.removeChild(this.element);
          this.element.ownerDocument.body.appendChild(this.element);
        }
      }

      // Any css change will trigger a repaint, so let's avoid one if nothing changed
      var writeCSS = {};
      var write = false;
      for (var key in css) {
        var val = css[key];
        var elVal = this.element.style[key];

        if (elVal !== val) {
          write = true;
          writeCSS[key] = val;
        }
      }

      if (write) {
        defer(function () {
          extend(_this8.element.style, writeCSS);
        });
      }
    }
  }]);

  return TetherClass;
})(Evented);

TetherClass.modules = [];

TetherBase.position = position;

var Tether = extend(TetherClass, TetherBase);
/* globals TetherBase */

'use strict';

var _slicedToArray = (function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }; })();

var _TetherBase$Utils = TetherBase.Utils;
var getBounds = _TetherBase$Utils.getBounds;
var extend = _TetherBase$Utils.extend;
var updateClasses = _TetherBase$Utils.updateClasses;
var defer = _TetherBase$Utils.defer;

var BOUNDS_FORMAT = ['left', 'top', 'right', 'bottom'];

function getBoundingRect(tether, to) {
  if (to === 'scrollParent') {
    to = tether.scrollParents[0];
  } else if (to === 'window') {
    to = [pageXOffset, pageYOffset, innerWidth + pageXOffset, innerHeight + pageYOffset];
  }

  if (to === document) {
    to = to.documentElement;
  }

  if (typeof to.nodeType !== 'undefined') {
    (function () {
      var node = to;
      var size = getBounds(to);
      var pos = size;
      var style = getComputedStyle(to);

      to = [pos.left, pos.top, size.width + pos.left, size.height + pos.top];

      // Account any parent Frames scroll offset
      if (node.ownerDocument !== document) {
        var win = node.ownerDocument.defaultView;
        to[0] += win.pageXOffset;
        to[1] += win.pageYOffset;
        to[2] += win.pageXOffset;
        to[3] += win.pageYOffset;
      }

      BOUNDS_FORMAT.forEach(function (side, i) {
        side = side[0].toUpperCase() + side.substr(1);
        if (side === 'Top' || side === 'Left') {
          to[i] += parseFloat(style['border' + side + 'Width']);
        } else {
          to[i] -= parseFloat(style['border' + side + 'Width']);
        }
      });
    })();
  }

  return to;
}

TetherBase.modules.push({
  position: function position(_ref) {
    var _this = this;

    var top = _ref.top;
    var left = _ref.left;
    var targetAttachment = _ref.targetAttachment;

    if (!this.options.constraints) {
      return true;
    }

    var _cache = this.cache('element-bounds', function () {
      return getBounds(_this.element);
    });

    var height = _cache.height;
    var width = _cache.width;

    if (width === 0 && height === 0 && typeof this.lastSize !== 'undefined') {
      var _lastSize = this.lastSize;

      // Handle the item getting hidden as a result of our positioning without glitching
      // the classes in and out
      width = _lastSize.width;
      height = _lastSize.height;
    }

    var targetSize = this.cache('target-bounds', function () {
      return _this.getTargetBounds();
    });

    var targetHeight = targetSize.height;
    var targetWidth = targetSize.width;

    var allClasses = [this.getClass('pinned'), this.getClass('out-of-bounds')];

    this.options.constraints.forEach(function (constraint) {
      var outOfBoundsClass = constraint.outOfBoundsClass;
      var pinnedClass = constraint.pinnedClass;

      if (outOfBoundsClass) {
        allClasses.push(outOfBoundsClass);
      }
      if (pinnedClass) {
        allClasses.push(pinnedClass);
      }
    });

    allClasses.forEach(function (cls) {
      ['left', 'top', 'right', 'bottom'].forEach(function (side) {
        allClasses.push(cls + '-' + side);
      });
    });

    var addClasses = [];

    var tAttachment = extend({}, targetAttachment);
    var eAttachment = extend({}, this.attachment);

    this.options.constraints.forEach(function (constraint) {
      var to = constraint.to;
      var attachment = constraint.attachment;
      var pin = constraint.pin;

      if (typeof attachment === 'undefined') {
        attachment = '';
      }

      var changeAttachX = undefined,
          changeAttachY = undefined;
      if (attachment.indexOf(' ') >= 0) {
        var _attachment$split = attachment.split(' ');

        var _attachment$split2 = _slicedToArray(_attachment$split, 2);

        changeAttachY = _attachment$split2[0];
        changeAttachX = _attachment$split2[1];
      } else {
        changeAttachX = changeAttachY = attachment;
      }

      var bounds = getBoundingRect(_this, to);

      if (changeAttachY === 'target' || changeAttachY === 'both') {
        if (top < bounds[1] && tAttachment.top === 'top') {
          top += targetHeight;
          tAttachment.top = 'bottom';
        }

        if (top + height > bounds[3] && tAttachment.top === 'bottom') {
          top -= targetHeight;
          tAttachment.top = 'top';
        }
      }

      if (changeAttachY === 'together') {
        if (tAttachment.top === 'top') {
          if (eAttachment.top === 'bottom' && top < bounds[1]) {
            top += targetHeight;
            tAttachment.top = 'bottom';

            top += height;
            eAttachment.top = 'top';
          } else if (eAttachment.top === 'top' && top + height > bounds[3] && top - (height - targetHeight) >= bounds[1]) {
            top -= height - targetHeight;
            tAttachment.top = 'bottom';

            eAttachment.top = 'bottom';
          }
        }

        if (tAttachment.top === 'bottom') {
          if (eAttachment.top === 'top' && top + height > bounds[3]) {
            top -= targetHeight;
            tAttachment.top = 'top';

            top -= height;
            eAttachment.top = 'bottom';
          } else if (eAttachment.top === 'bottom' && top < bounds[1] && top + (height * 2 - targetHeight) <= bounds[3]) {
            top += height - targetHeight;
            tAttachment.top = 'top';

            eAttachment.top = 'top';
          }
        }

        if (tAttachment.top === 'middle') {
          if (top + height > bounds[3] && eAttachment.top === 'top') {
            top -= height;
            eAttachment.top = 'bottom';
          } else if (top < bounds[1] && eAttachment.top === 'bottom') {
            top += height;
            eAttachment.top = 'top';
          }
        }
      }

      if (changeAttachX === 'target' || changeAttachX === 'both') {
        if (left < bounds[0] && tAttachment.left === 'left') {
          left += targetWidth;
          tAttachment.left = 'right';
        }

        if (left + width > bounds[2] && tAttachment.left === 'right') {
          left -= targetWidth;
          tAttachment.left = 'left';
        }
      }

      if (changeAttachX === 'together') {
        if (left < bounds[0] && tAttachment.left === 'left') {
          if (eAttachment.left === 'right') {
            left += targetWidth;
            tAttachment.left = 'right';

            left += width;
            eAttachment.left = 'left';
          } else if (eAttachment.left === 'left') {
            left += targetWidth;
            tAttachment.left = 'right';

            left -= width;
            eAttachment.left = 'right';
          }
        } else if (left + width > bounds[2] && tAttachment.left === 'right') {
          if (eAttachment.left === 'left') {
            left -= targetWidth;
            tAttachment.left = 'left';

            left -= width;
            eAttachment.left = 'right';
          } else if (eAttachment.left === 'right') {
            left -= targetWidth;
            tAttachment.left = 'left';

            left += width;
            eAttachment.left = 'left';
          }
        } else if (tAttachment.left === 'center') {
          if (left + width > bounds[2] && eAttachment.left === 'left') {
            left -= width;
            eAttachment.left = 'right';
          } else if (left < bounds[0] && eAttachment.left === 'right') {
            left += width;
            eAttachment.left = 'left';
          }
        }
      }

      if (changeAttachY === 'element' || changeAttachY === 'both') {
        if (top < bounds[1] && eAttachment.top === 'bottom') {
          top += height;
          eAttachment.top = 'top';
        }

        if (top + height > bounds[3] && eAttachment.top === 'top') {
          top -= height;
          eAttachment.top = 'bottom';
        }
      }

      if (changeAttachX === 'element' || changeAttachX === 'both') {
        if (left < bounds[0]) {
          if (eAttachment.left === 'right') {
            left += width;
            eAttachment.left = 'left';
          } else if (eAttachment.left === 'center') {
            left += width / 2;
            eAttachment.left = 'left';
          }
        }

        if (left + width > bounds[2]) {
          if (eAttachment.left === 'left') {
            left -= width;
            eAttachment.left = 'right';
          } else if (eAttachment.left === 'center') {
            left -= width / 2;
            eAttachment.left = 'right';
          }
        }
      }

      if (typeof pin === 'string') {
        pin = pin.split(',').map(function (p) {
          return p.trim();
        });
      } else if (pin === true) {
        pin = ['top', 'left', 'right', 'bottom'];
      }

      pin = pin || [];

      var pinned = [];
      var oob = [];

      if (top < bounds[1]) {
        if (pin.indexOf('top') >= 0) {
          top = bounds[1];
          pinned.push('top');
        } else {
          oob.push('top');
        }
      }

      if (top + height > bounds[3]) {
        if (pin.indexOf('bottom') >= 0) {
          top = bounds[3] - height;
          pinned.push('bottom');
        } else {
          oob.push('bottom');
        }
      }

      if (left < bounds[0]) {
        if (pin.indexOf('left') >= 0) {
          left = bounds[0];
          pinned.push('left');
        } else {
          oob.push('left');
        }
      }

      if (left + width > bounds[2]) {
        if (pin.indexOf('right') >= 0) {
          left = bounds[2] - width;
          pinned.push('right');
        } else {
          oob.push('right');
        }
      }

      if (pinned.length) {
        (function () {
          var pinnedClass = undefined;
          if (typeof _this.options.pinnedClass !== 'undefined') {
            pinnedClass = _this.options.pinnedClass;
          } else {
            pinnedClass = _this.getClass('pinned');
          }

          addClasses.push(pinnedClass);
          pinned.forEach(function (side) {
            addClasses.push(pinnedClass + '-' + side);
          });
        })();
      }

      if (oob.length) {
        (function () {
          var oobClass = undefined;
          if (typeof _this.options.outOfBoundsClass !== 'undefined') {
            oobClass = _this.options.outOfBoundsClass;
          } else {
            oobClass = _this.getClass('out-of-bounds');
          }

          addClasses.push(oobClass);
          oob.forEach(function (side) {
            addClasses.push(oobClass + '-' + side);
          });
        })();
      }

      if (pinned.indexOf('left') >= 0 || pinned.indexOf('right') >= 0) {
        eAttachment.left = tAttachment.left = false;
      }
      if (pinned.indexOf('top') >= 0 || pinned.indexOf('bottom') >= 0) {
        eAttachment.top = tAttachment.top = false;
      }

      if (tAttachment.top !== targetAttachment.top || tAttachment.left !== targetAttachment.left || eAttachment.top !== _this.attachment.top || eAttachment.left !== _this.attachment.left) {
        _this.updateAttachClasses(eAttachment, tAttachment);
        _this.trigger('update', {
          attachment: eAttachment,
          targetAttachment: tAttachment
        });
      }
    });

    defer(function () {
      if (!(_this.options.addTargetClasses === false)) {
        updateClasses(_this.target, addClasses, allClasses);
      }
      updateClasses(_this.element, addClasses, allClasses);
    });

    return { top: top, left: left };
  }
});
/* globals TetherBase */

'use strict';

var _TetherBase$Utils = TetherBase.Utils;
var getBounds = _TetherBase$Utils.getBounds;
var updateClasses = _TetherBase$Utils.updateClasses;
var defer = _TetherBase$Utils.defer;

TetherBase.modules.push({
  position: function position(_ref) {
    var _this = this;

    var top = _ref.top;
    var left = _ref.left;

    var _cache = this.cache('element-bounds', function () {
      return getBounds(_this.element);
    });

    var height = _cache.height;
    var width = _cache.width;

    var targetPos = this.getTargetBounds();

    var bottom = top + height;
    var right = left + width;

    var abutted = [];
    if (top <= targetPos.bottom && bottom >= targetPos.top) {
      ['left', 'right'].forEach(function (side) {
        var targetPosSide = targetPos[side];
        if (targetPosSide === left || targetPosSide === right) {
          abutted.push(side);
        }
      });
    }

    if (left <= targetPos.right && right >= targetPos.left) {
      ['top', 'bottom'].forEach(function (side) {
        var targetPosSide = targetPos[side];
        if (targetPosSide === top || targetPosSide === bottom) {
          abutted.push(side);
        }
      });
    }

    var allClasses = [];
    var addClasses = [];

    var sides = ['left', 'top', 'right', 'bottom'];
    allClasses.push(this.getClass('abutted'));
    sides.forEach(function (side) {
      allClasses.push(_this.getClass('abutted') + '-' + side);
    });

    if (abutted.length) {
      addClasses.push(this.getClass('abutted'));
    }

    abutted.forEach(function (side) {
      addClasses.push(_this.getClass('abutted') + '-' + side);
    });

    defer(function () {
      if (!(_this.options.addTargetClasses === false)) {
        updateClasses(_this.target, addClasses, allClasses);
      }
      updateClasses(_this.element, addClasses, allClasses);
    });

    return true;
  }
});
/* globals TetherBase */

'use strict';

var _slicedToArray = (function () { function sliceIterator(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i['return']) _i['return'](); } finally { if (_d) throw _e; } } return _arr; } return function (arr, i) { if (Array.isArray(arr)) { return arr; } else if (Symbol.iterator in Object(arr)) { return sliceIterator(arr, i); } else { throw new TypeError('Invalid attempt to destructure non-iterable instance'); } }; })();

TetherBase.modules.push({
  position: function position(_ref) {
    var top = _ref.top;
    var left = _ref.left;

    if (!this.options.shift) {
      return;
    }

    var shift = this.options.shift;
    if (typeof this.options.shift === 'function') {
      shift = this.options.shift.call(this, { top: top, left: left });
    }

    var shiftTop = undefined,
        shiftLeft = undefined;
    if (typeof shift === 'string') {
      shift = shift.split(' ');
      shift[1] = shift[1] || shift[0];

      var _shift = shift;

      var _shift2 = _slicedToArray(_shift, 2);

      shiftTop = _shift2[0];
      shiftLeft = _shift2[1];

      shiftTop = parseFloat(shiftTop, 10);
      shiftLeft = parseFloat(shiftLeft, 10);
    } else {
      shiftTop = shift.top;
      shiftLeft = shift.left;
    }

    top += shiftTop;
    left += shiftLeft;

    return { top: top, left: left };
  }
});
return Tether;

}));

/**
 * This model is used by admin/about.blade.php, to perform a version check against Github.
 * @constructor
 */
function AboutViewModel(urls) {
    this.el = '#about-app';

    this.data = {
        can_upgrade: false,
        is_loading: true,
        version_body: '',
        version_date: '',
        version_name: '',
        version_url: ''
    };

    this.computed = {
    };

    this.methods = {
        init: function () {
            var self = this;

            $.ajax(
                urls.latest_release_url,
                {
                    complete: function() {
                        self.is_loading = false;
                    },
                    dataType: 'json',
                    error: function (xhr, textStatus, errorThrown) {
                    },
                    method: 'GET',
                    success: function (data) {
                        self.version_body = data.body;
                        self.version_date = data.publish_date;
                        self.version_name = data.name;
                        self.version_url = data.url;

                        // Set this last so any watchers on this property execute after all version data has been set
                        self.can_upgrade = data.can_upgrade;
                    }
                }
            );
        }
    };
}

/**
 * This model is used by admin/settings.blade.php.
 * @constructor
 */
function SettingsViewModel(urls, lang) {
    this.el = '#settings-app';

    this.data = {
        is_rebuilding_permissions_cache: false
    };

    this.methods = {
        rebuildPermissionsCache: function (e) {
            var self = this;

            $.ajax(
                urls.rebuild_permissions_cache,
                {
                    complete: function() {
                        self.is_rebuilding_permissions_cache = false;
                    },
                    dataType: 'json',
                    error: function (xhr, textStatus, errorThrown) {
                        alert(lang.permissions_cache_rebuild_failed);
                    },
                    method: 'POST',
                    success: function (data) {
                        alert(lang.permissions_cache_rebuild_succeeded);
                    }
                }
            );

            e.preventDefault();
            return false;
        }
    };
}
/**
 * This model is used by admin/analyse_album.blade.php, to analyse all images.
 * @constructor
 */
function AnalyseAlbumViewModel() {
    this.el = '#analyse-album';

    this.data = {
        imagesFailed: [],
        imagesToAnalyse: [],
        imagesInProgress: [],
        imagesRecentlyCompleted: [],
        numberSuccessful: 0,
        numberFailed: 0
    };

    this.computed = {
        failedPercentage: function () {
            var result = 0;

            if (this.numberTotal > 0)
            {
                result = (this.numberFailed / this.numberTotal) * 100;
            }

            return result.toFixed(2) + '%';
        },
        isCompleted: function () {
            return this.numberTotal > 0 && (this.numberSuccessful + this.numberFailed >= this.numberTotal);
        },
        latestCompletedImages: function() {
            var startIndex = this.imagesRecentlyCompleted.length - 3 < 0
                ? 0
                : this.imagesRecentlyCompleted.length - 3;
            var endIndex = startIndex + 3;

            return this.imagesRecentlyCompleted.slice(startIndex, endIndex);
        },
        numberTotal: function () {
            return this.imagesToAnalyse.length;
        },
        successfulPercentage: function () {
            var result = 0;

            if (this.numberTotal > 0)
            {
                result = (this.numberSuccessful / this.numberTotal) * 100;
            }

            return result.toFixed(2) + '%';
        }
    };

    this.methods = {
        // This method is called when an image is added to the array, automatically issue it for analysis
        // item is an instance of AnalyseImageViewModel
        analyseImage: function (item) {
            var self = this;
            this.imagesToAnalyse.push(item);

            $.ajax(
                item.url,
                {
                    beforeSend: function() {
                        self.imagesInProgress.push(item);
                    },
                    dataType: 'json',
                    error: function (xhr, textStatus, errorThrown) {
                        self.numberFailed++;
                        self.imagesFailed.push({
                            'name': item.name,
                            'reason': textStatus
                        });
                        item.isSuccessful = false;
                        item.isPending = false;
                    },
                    method: 'POST',
                    success: function (data) {
                        if (data.is_successful) {
                            self.numberSuccessful++;
                            item.isSuccessful = true;
                            item.isPending = false;

                            // Push into our "recently completed" array
                            self.imagesRecentlyCompleted.push(item);
                            var indexToRemove = self.imagesInProgress.indexOf(item);
                            if (indexToRemove > -1)
                            {
                                self.imagesInProgress.splice(indexToRemove, 1);
                            }

                            // Remove it again after a few seconds
                            /*window.setTimeout(function() {
                                var indexToRemove = self.imagesRecentlyCompleted.indexOf(item);
                                if (indexToRemove > -1) {
                                    self.imagesRecentlyCompleted.splice(indexToRemove, 1);
                                }
                            }, 2000);*/
                        }
                        else {
                            self.numberFailed++;
                            self.imagesFailed.push({
                                'name': item.name,
                                'reason': data.message
                            });
                            item.isSuccessful = false;
                            item.isPending = false;
                        }
                    }
                }
            );
        }
    };
}

/**
 * This model is used by admin/analyse_album.blade.php, as a sub-model of AnalyseAlbumViewModel.
 * @param image_info Array of information about the image
 * @constructor
 */
function AnalyseImageViewModel(image_info) {
    this.isPending = true;
    this.isSuccessful = false;
    this.name = image_info.name;
    this.photoID = image_info.photo_id;
    this.url = image_info.url;
}

/**
 * This model is used by admin/show_album.blade.php to handle photo changes.
 * @param album_id ID of the album the photos are in
 * @param language Array containing language strings
 * @param urls Array containing URLs
 * @constructor
 */
function EditPhotosViewModel(album_id, language, urls) {
    this.el = '#photos-tab';

    this.data = {
        albums: [],
        bulkModifyMethod: '',
        isSubmitting: false,
        photoIDs: [],
        photoIDsAvailable: [],
        selectAllInAlbum: 0
    };

    // When a photo is un-selected, remove the "select all in album" flag as the user has overridden the selection
    /*self.photoIDs.subscribe(function (changes)
    {
        if (changes[0].status !== 'deleted')
        {
            return;
        }

        self.selectAllInAlbum(0);
    }, null, 'arrayChange');*/

    this.methods = {
        // Called when the Apply button on the "bulk apply selected actions" form is clicked
        bulkModifySelected: function (e) {
            if (this.isSubmitting) {
                return true;
            }

            var self = this;
            var bulk_form = $(e.target).closest('form');

            if (this.bulkModifyMethod === 'change_album') {
                // Prompt for the new album to move to
                this.promptForNewAlbum(function (dialog) {
                    var album_id = $('select', dialog).val();
                    $('input[name="new-album-id"]', bulk_form).val(album_id);

                    self.isSubmitting = true;
                    $('button[name="bulk-apply"]', bulk_form).click();
                    _bt_showLoadingModal();
                });

                e.preventDefault();
                return false;
            }
            else if (this.bulkModifyMethod === 'delete') {
                // Prompt for a confirmation - are you sure?!
                bootbox.dialog({
                    message: language.delete_bulk_confirm_message,
                    title: language.delete_bulk_confirm_title,
                    buttons: {
                        cancel: {
                            label: language.action_cancel,
                            className: "btn-secondary"
                        },
                        confirm: {
                            label: language.action_delete,
                            className: "btn-danger",
                            callback: function () {
                                self.isSubmitting = true;
                                $('button[name="bulk-apply"]', bulk_form).click();
                                _bt_showLoadingModal();
                            }
                        }
                    }
                });

                e.preventDefault();
                return false;
            }

            // All other methods submit the form as normal
            return true;
        },
        changeAlbum: function (e) {
            this.selectPhotoSingle(e.target);

            var photo_id = this.photoIDs[0];
            this.photoIDs = [];

            this.promptForNewAlbum(function (dialog) {
                var album_id = $('select', dialog).val();
                $.post(urls.move_photo.replace(/\/0$/, '/' + photo_id), {'new_album_id': album_id}, function () {
                    window.location.reload();
                });
                //_bt_showLoadingModal();
            });

            e.preventDefault();
            return false;
        },
        deletePhoto: function (e) {
            var self = this;
            this.selectPhotoSingle(e.target);

            var photo_id = self.photoIDs[0];
            this.photoIDs = [];

            bootbox.dialog({
                message: language.delete_confirm_message,
                title: language.delete_confirm_title,
                buttons: {
                    cancel: {
                        label: language.action_cancel,
                        className: "btn-secondary"
                    },
                    confirm: {
                        label: language.action_delete,
                        className: "btn-danger",
                        callback: function () {
                            var url = urls.delete_photo;
                            url = url.replace(/\/0$/, '/' + photo_id);

                            $('.loading', parent).show();

                            $.post(url, {'_method': 'DELETE'}, function (data) {
                                window.location.reload();
                            });
                        }
                    }
                }
            });

            e.preventDefault();
            return false;
        },
        flip: function (horizontal, vertical, parent) {
            var url = urls.flip_photo;
            url = url.replace('/0/', '/' + this.photoIDs[0] + '/');

            if (horizontal) {
                url = url.replace(/\/-1\//, '/1/');
            }
            else {
                url = url.replace(/\/-1\//, '/0/');
            }

            if (vertical) {
                url = url.replace(/\/-2$/, '/1');
            }
            else {
                url = url.replace(/\/-2$/, '/0');
            }

            $('.loading', parent).show();
            $.post(url, function () {
                var image = $('img.photo-thumbnail', parent);
                var originalUrl = image.data('original-src');
                image.attr('src', originalUrl + "&_=" + new Date().getTime());

                $('.loading', parent).hide();
            });

            this.photoIDs = [];
        },
        flipBoth: function (e) {
            this.selectPhotoSingle(e.target);
            this.flip(true, true, $(e.target).closest('.photo'));

            e.preventDefault();
            return false;
        },
        flipHorizontal: function (e) {
            this.selectPhotoSingle(e.target);
            this.flip(true, false, $(e.target).closest('.photo'));

            e.preventDefault();
            return false;
        },
        flipVertical: function (e) {
            this.selectPhotoSingle(e.target);
            this.flip(false, true, $(e.target).closest('.photo'));

            e.preventDefault();
            return false;
        },
        isPhotoSelected: function(photoID) {
            if (this.photoIDs.indexOf(photoID) > -1)
            {
                return 'checked';
            }

            return '';
        },
        promptForNewAlbum: function (callback_on_selected) {
            var albums = this.albums;
            var select = $('<select/>')
                .attr('name', 'album_id')
                .addClass('form-control');

            for (var i = 0; i < albums.length; i++) {
                var option = $('<option/>')
                    .attr('value', albums[i].id)
                    .html(albums[i].name)
                    .appendTo(select);

                // Pre-select the current album
                if (album_id === albums[i].id) {
                    option.attr('selected', 'selected');
                }
            }

            bootbox.dialog({
                message: $('<p/>').html(language.change_album_message).prop('outerHTML') + select.prop('outerHTML'),
                title: language.change_album_title,
                buttons: {
                    cancel: {
                        label: language.action_cancel,
                        className: 'btn-secondary'
                    },
                    confirm: {
                        label: language.action_continue,
                        className: 'btn-success',
                        callback: function () {
                            callback_on_selected(this);
                        }
                    }
                }
            });
        },
        regenerateThumbnails: function (e) {
            this.selectPhotoSingle(e.target);
            var parent = $(e.target).closest('.photo');

            var url = urls.regenerate_thumbnails;
            url = url.replace(/\/0$/, '/' + this.photoIDs[0]);

            $('.loading', parent).show();
            $.post(url, function () {
                var image = $('img.photo-thumbnail', parent);
                var originalUrl = image.data('original-src');
                image.attr('src', originalUrl + "&_=" + new Date().getTime());

                $('.loading', parent).hide();
            });

            this.photoIDs = [];

            e.preventDefault();
            return false;
        },
        replacePhoto: function (e) {
            var self = this;

            this.selectPhotoSingle(e.target);
            var parent = $(e.target).closest('.photo');

            bootbox.dialog({
                message: $('<p/>').html(language.replace_image_message).prop('outerHTML') +
                    $('#replace-image-form').clone().removeAttr('style').attr('id', 'replace-image-form-visible').prop('outerHTML'),
                title: language.replace_image_title,
                buttons: {
                    cancel: {
                        label: language.action_cancel,
                        className: 'btn-secondary'
                    },
                    confirm: {
                        label: language.action_continue,
                        className: 'btn-success',
                        callback: function () {
                            $('input[name="photo_id"]', '#replace-image-form-visible').val(self.photoIDs[0]);
                            $('#replace-image-form-visible').submit();
                        }
                    }
                }
            });

            e.preventDefault();
            return false;
        },
        rotate: function (angle, parent) {
            var url = urls.rotate_photo;
            url = url.replace('/0/', '/' + this.photoIDs[0] + '/');
            url = url.replace(/\/1$/, '/' + angle);

            $('.loading', parent).show();
            $.post(url, function () {
                var image = $('img.photo-thumbnail', parent);
                var originalUrl = image.data('original-src');
                image.attr('src', originalUrl + "&_=" + new Date().getTime());

                $('.loading', parent).hide();
            });

            this.photoIDs = [];
        },
        rotateLeft: function (e) {
            this.selectPhotoSingle(e.target);
            this.rotate(90, $(e.target).closest('.photo'));

            e.preventDefault();
            return false;
        },
        rotateRight: function(e)
        {
            this.selectPhotoSingle(e.target);
            this.rotate(270, $(e.target).closest('.photo'));

            e.preventDefault();
            return false;
        },
        selectAll: function() {
            var self = this;
            bootbox.dialog({
                title: language.select_all_choice_title,
                message: language.select_all_choice_message,
                buttons: {
                    select_all: {
                        label: language.select_all_choice_all_action,
                        className: 'btn-secondary',
                        callback: function()
                        {
                            self.selectAllInAlbum = 1;
                            for (i = 0; i < self.photoIDsAvailable.length; i++)
                            {
                                self.photoIDs.push(self.photoIDsAvailable[i]);
                            }
                        }
                    },
                    select_visible: {
                        label: language.select_all_choice_visible_action,
                        className: 'btn-primary',
                        callback: function()
                        {
                            self.selectAllInAlbum = 0;
                            for (i = 0; i < self.photoIDsAvailable.length; i++)
                            {
                                self.photoIDs.push(self.photoIDsAvailable[i]);
                            }
                        }
                    }
                }
            });

            return false;
        },
        selectNone: function() {
            this.photoIDs = [];
            this.selectAllInAlbum = 0;

            return false;
        },
        selectPhotoSingle: function (link_item) {
            // Get the photo ID from the clicked link
            var parent = $(link_item).closest('.photo');
            var photo_id = $(parent).data('photo-id');

            // Save the photo ID
            this.photoIDs = [];
            this.photoIDs.push(photo_id);
        },
        switchToUploadTab: function (e) {
            $('.nav-tabs a[href="#upload-tab"]').tab('show');

            e.preventDefault();
            return false;
        }
    }
}

function SlideShowViewModel(required_timeout_ms) {
    this.el = '#slideshow-container';

    this.data = {
        current: null,
        currentIndex: 0,
        images: [],
        interval: null,
        isPaused: false,
        isRunning: false
    };

    this.methods = {
        changeCurrentImage: function(photo_id)
        {
            for (var i = 0; i < this.images.length; i++)
            {
                var this_image = this.images[i];
                if (this_image.id === photo_id)
                {
                    this.current = this_image;
                    this.currentIndex = i;
                    window.clearInterval(this.interval);
                    this.interval = window.setInterval(this.rotateNextImage, required_timeout_ms);
                    return;
                }
            }
        },
        continueSlideshow: function() {
            this.isPaused = false;
            this.interval = window.setInterval(this.rotateNextImage, required_timeout_ms);
        },
        pauseSlideshow: function(e) {
            this.isPaused = true;
            window.clearInterval(this.interval);
        },
        rotateNextImage: function() {
            var next_index = this.currentIndex + 1;
            if (next_index >= this.images.length)
            {
                next_index = 0;
            }

            this.current = this.images[next_index];
            this.currentIndex = next_index;
        },
        startSlideshow: function() {
            if (this.images.length <= 0)
            {
                return;
            }

            this.interval = window.setInterval(this.rotateNextImage, required_timeout_ms);

            this.current = this.images[0];
            this.isRunning = true;
        }
    };
}

/**
 * This model is used by admin/show_album.blade.php to handle photo uploads.
 * @param album_id ID of the album the photos are being uploaded to
 * @param queue_token Unique token of the upload queue to save the photos to
 * @param language Array containing language strings
 * @param urls Array containing URLs
 * @constructor
 */
function UploadPhotosViewModel(album_id, queue_token, language, urls) {
    this.el = '#upload-tab';

    this.data = {
        currentStatus: '',
        imagesFailed: 0,
        imagesTotal: 0,
        imagesUploaded: 0,
        isBulkUploadInProgress: false,
        isUploadInProgress: false,
        statusMessages: []
    };

    this.computed = {
        failedPercentage: function () {
            var result = 0;

            if (this.imagesTotal > 0)
            {
                result = (this.imagesFailed / this.imagesTotal) * 100;
            }

            return result.toFixed(2) + '%';
        },
        successfulPercentage: function () {
            var result = 0;

            if (this.imagesTotal > 0)
            {
                result = (this.imagesUploaded / this.imagesTotal) * 100;
            }

            return result.toFixed(2) + '%';
        }
    };

    this.methods = {
        // This method is called when an image is uploaded - regardless if it fails or not
        onUploadCompleted: function () {
            this.currentStatus = language.upload_status
                .replace(':current', (this.imagesUploaded + this.imagesFailed))
                .replace(':total', this.imagesTotal);

            if ((this.imagesFailed + this.imagesUploaded) >= this.imagesTotal) {
                this.isUploadInProgress = false;

                if (this.imagesFailed === 0 && this.imagesUploaded > 0) {
                    window.location = urls.analyse;
                }
            }
        },
        // This method is called when an uploaded image fails
        onUploadFailed: function (data, file_name) {
            this.imagesFailed++;
            this.statusMessages.push({
                'message_class': 'text-danger',
                'message_text': language.image_failed.replace(':file_name', file_name)
            });
            this.onUploadCompleted();
        },
        // This method is called when an uploaded image succeeds
        onUploadSuccessful: function (data, file_name) {
            if (data.is_successful) {
                this.imagesUploaded++;
                // Don't add to statusMessages() array so user only sees errors
                /*self.statusMessages.push({
                 'message_class': 'text-success',
                 'message_text': language.image_uploaded.replace(':file_name', file_name)
                 });*/
                this.onUploadCompleted();
            }
            else {
                this.onUploadFailed(data, file_name);
            }
        },
        uploadFile: function uploadImageFile(formObject, imageFile) {
            var self = this;
            var formData = new FormData();
            formData.append('album_id', album_id);
            formData.append('queue_token', queue_token);
            formData.append('photo[]', imageFile, imageFile.name);

            $.ajax(
                {
                    contentType: false,
                    data: formData,
                    error: function (data) {
                        self.onUploadFailed(data, imageFile.name);
                    },
                    method: $(formObject).attr('method'),
                    processData: false,
                    success: function (data) {
                        self.onUploadSuccessful(data, imageFile.name);
                    },
                    url: $(formObject).attr('action')
                }
            );
            this.isUploadInProgress = true;

            this.currentStatus = language.upload_status
                .replace(':current', 0)
                .replace(':total', this.imagesTotal);
        },
        uploadBulkFiles: function(event) {
            this.isBulkUploadInProgress = true;
            return true;
        },
        uploadIndividualFiles: function(event) {
            var fileSelect = $('input[type=file]', event.target);

            // Get the selected files
            var files = fileSelect[0].files;

            if (files.length === 0)
            {
                alert(language.no_file_selected);
                event.preventDefault();
                return false;
            }

            // Reset statistics
            this.currentStatus = '';
            this.statusMessages = [];
            this.imagesUploaded = 0;
            this.imagesFailed = 0;
            this.imagesTotal = files.length;
            this.isUploadInProgress = true;

            // Loop through each of the selected files and upload them individually
            for (var i = 0; i < files.length; i++)
            {
                var file = files[i];

                // We're only interested in image files
                if (!file.type.match('image.*'))
                {
                    alert(language.not_an_image_file.replace(':file_name', file.name));
                    this.onUploadFailed(null, file.name);
                    continue;
                }

                // Upload the file
                this.uploadFile(event.target, file);
            }

            // Prevent standard form upload
            event.preventDefault();
            return false;
        }
    };
}
/*!
 * Chart.js
 * http://chartjs.org/
 * Version: 2.7.0
 *
 * Copyright 2017 Nick Downie
 * Released under the MIT license
 * https://github.com/chartjs/Chart.js/blob/master/LICENSE.md
 */
(function(f){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=f()}else if(typeof define==="function"&&define.amd){define([],f)}else{var g;if(typeof window!=="undefined"){g=window}else if(typeof global!=="undefined"){g=global}else if(typeof self!=="undefined"){g=self}else{g=this}g.Chart = f()}})(function(){var define,module,exports;return (function e(t,n,r){function s(o,u){if(!n[o]){if(!t[o]){var a=typeof require=="function"&&require;if(!u&&a)return a(o,!0);if(i)return i(o,!0);var f=new Error("Cannot find module '"+o+"'");throw f.code="MODULE_NOT_FOUND",f}var l=n[o]={exports:{}};t[o][0].call(l.exports,function(e){var n=t[o][1][e];return s(n?n:e)},l,l.exports,e,t,n,r)}return n[o].exports}var i=typeof require=="function"&&require;for(var o=0;o<r.length;o++)s(r[o]);return s})({1:[function(require,module,exports){
/* MIT license */
var colorNames = require(5);

module.exports = {
   getRgba: getRgba,
   getHsla: getHsla,
   getRgb: getRgb,
   getHsl: getHsl,
   getHwb: getHwb,
   getAlpha: getAlpha,

   hexString: hexString,
   rgbString: rgbString,
   rgbaString: rgbaString,
   percentString: percentString,
   percentaString: percentaString,
   hslString: hslString,
   hslaString: hslaString,
   hwbString: hwbString,
   keyword: keyword
}

function getRgba(string) {
   if (!string) {
      return;
   }
   var abbr =  /^#([a-fA-F0-9]{3})$/i,
       hex =  /^#([a-fA-F0-9]{6})$/i,
       rgba = /^rgba?\(\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*,\s*([+-]?\d+)\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
       per = /^rgba?\(\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*,\s*([+-]?[\d\.]+)\%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)$/i,
       keyword = /(\w+)/;

   var rgb = [0, 0, 0],
       a = 1,
       match = string.match(abbr);
   if (match) {
      match = match[1];
      for (var i = 0; i < rgb.length; i++) {
         rgb[i] = parseInt(match[i] + match[i], 16);
      }
   }
   else if (match = string.match(hex)) {
      match = match[1];
      for (var i = 0; i < rgb.length; i++) {
         rgb[i] = parseInt(match.slice(i * 2, i * 2 + 2), 16);
      }
   }
   else if (match = string.match(rgba)) {
      for (var i = 0; i < rgb.length; i++) {
         rgb[i] = parseInt(match[i + 1]);
      }
      a = parseFloat(match[4]);
   }
   else if (match = string.match(per)) {
      for (var i = 0; i < rgb.length; i++) {
         rgb[i] = Math.round(parseFloat(match[i + 1]) * 2.55);
      }
      a = parseFloat(match[4]);
   }
   else if (match = string.match(keyword)) {
      if (match[1] == "transparent") {
         return [0, 0, 0, 0];
      }
      rgb = colorNames[match[1]];
      if (!rgb) {
         return;
      }
   }

   for (var i = 0; i < rgb.length; i++) {
      rgb[i] = scale(rgb[i], 0, 255);
   }
   if (!a && a != 0) {
      a = 1;
   }
   else {
      a = scale(a, 0, 1);
   }
   rgb[3] = a;
   return rgb;
}

function getHsla(string) {
   if (!string) {
      return;
   }
   var hsl = /^hsla?\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
   var match = string.match(hsl);
   if (match) {
      var alpha = parseFloat(match[4]);
      var h = scale(parseInt(match[1]), 0, 360),
          s = scale(parseFloat(match[2]), 0, 100),
          l = scale(parseFloat(match[3]), 0, 100),
          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
      return [h, s, l, a];
   }
}

function getHwb(string) {
   if (!string) {
      return;
   }
   var hwb = /^hwb\(\s*([+-]?\d+)(?:deg)?\s*,\s*([+-]?[\d\.]+)%\s*,\s*([+-]?[\d\.]+)%\s*(?:,\s*([+-]?[\d\.]+)\s*)?\)/;
   var match = string.match(hwb);
   if (match) {
    var alpha = parseFloat(match[4]);
      var h = scale(parseInt(match[1]), 0, 360),
          w = scale(parseFloat(match[2]), 0, 100),
          b = scale(parseFloat(match[3]), 0, 100),
          a = scale(isNaN(alpha) ? 1 : alpha, 0, 1);
      return [h, w, b, a];
   }
}

function getRgb(string) {
   var rgba = getRgba(string);
   return rgba && rgba.slice(0, 3);
}

function getHsl(string) {
  var hsla = getHsla(string);
  return hsla && hsla.slice(0, 3);
}

function getAlpha(string) {
   var vals = getRgba(string);
   if (vals) {
      return vals[3];
   }
   else if (vals = getHsla(string)) {
      return vals[3];
   }
   else if (vals = getHwb(string)) {
      return vals[3];
   }
}

// generators
function hexString(rgb) {
   return "#" + hexDouble(rgb[0]) + hexDouble(rgb[1])
              + hexDouble(rgb[2]);
}

function rgbString(rgba, alpha) {
   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
      return rgbaString(rgba, alpha);
   }
   return "rgb(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2] + ")";
}

function rgbaString(rgba, alpha) {
   if (alpha === undefined) {
      alpha = (rgba[3] !== undefined ? rgba[3] : 1);
   }
   return "rgba(" + rgba[0] + ", " + rgba[1] + ", " + rgba[2]
           + ", " + alpha + ")";
}

function percentString(rgba, alpha) {
   if (alpha < 1 || (rgba[3] && rgba[3] < 1)) {
      return percentaString(rgba, alpha);
   }
   var r = Math.round(rgba[0]/255 * 100),
       g = Math.round(rgba[1]/255 * 100),
       b = Math.round(rgba[2]/255 * 100);

   return "rgb(" + r + "%, " + g + "%, " + b + "%)";
}

function percentaString(rgba, alpha) {
   var r = Math.round(rgba[0]/255 * 100),
       g = Math.round(rgba[1]/255 * 100),
       b = Math.round(rgba[2]/255 * 100);
   return "rgba(" + r + "%, " + g + "%, " + b + "%, " + (alpha || rgba[3] || 1) + ")";
}

function hslString(hsla, alpha) {
   if (alpha < 1 || (hsla[3] && hsla[3] < 1)) {
      return hslaString(hsla, alpha);
   }
   return "hsl(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%)";
}

function hslaString(hsla, alpha) {
   if (alpha === undefined) {
      alpha = (hsla[3] !== undefined ? hsla[3] : 1);
   }
   return "hsla(" + hsla[0] + ", " + hsla[1] + "%, " + hsla[2] + "%, "
           + alpha + ")";
}

// hwb is a bit different than rgb(a) & hsl(a) since there is no alpha specific syntax
// (hwb have alpha optional & 1 is default value)
function hwbString(hwb, alpha) {
   if (alpha === undefined) {
      alpha = (hwb[3] !== undefined ? hwb[3] : 1);
   }
   return "hwb(" + hwb[0] + ", " + hwb[1] + "%, " + hwb[2] + "%"
           + (alpha !== undefined && alpha !== 1 ? ", " + alpha : "") + ")";
}

function keyword(rgb) {
  return reverseNames[rgb.slice(0, 3)];
}

// helpers
function scale(num, min, max) {
   return Math.min(Math.max(min, num), max);
}

function hexDouble(num) {
  var str = num.toString(16).toUpperCase();
  return (str.length < 2) ? "0" + str : str;
}


//create a list of reverse color names
var reverseNames = {};
for (var name in colorNames) {
   reverseNames[colorNames[name]] = name;
}

},{"5":5}],2:[function(require,module,exports){
/* MIT license */
var convert = require(4);
var string = require(1);

var Color = function (obj) {
	if (obj instanceof Color) {
		return obj;
	}
	if (!(this instanceof Color)) {
		return new Color(obj);
	}

	this.valid = false;
	this.values = {
		rgb: [0, 0, 0],
		hsl: [0, 0, 0],
		hsv: [0, 0, 0],
		hwb: [0, 0, 0],
		cmyk: [0, 0, 0, 0],
		alpha: 1
	};

	// parse Color() argument
	var vals;
	if (typeof obj === 'string') {
		vals = string.getRgba(obj);
		if (vals) {
			this.setValues('rgb', vals);
		} else if (vals = string.getHsla(obj)) {
			this.setValues('hsl', vals);
		} else if (vals = string.getHwb(obj)) {
			this.setValues('hwb', vals);
		}
	} else if (typeof obj === 'object') {
		vals = obj;
		if (vals.r !== undefined || vals.red !== undefined) {
			this.setValues('rgb', vals);
		} else if (vals.l !== undefined || vals.lightness !== undefined) {
			this.setValues('hsl', vals);
		} else if (vals.v !== undefined || vals.value !== undefined) {
			this.setValues('hsv', vals);
		} else if (vals.w !== undefined || vals.whiteness !== undefined) {
			this.setValues('hwb', vals);
		} else if (vals.c !== undefined || vals.cyan !== undefined) {
			this.setValues('cmyk', vals);
		}
	}
};

Color.prototype = {
	isValid: function () {
		return this.valid;
	},
	rgb: function () {
		return this.setSpace('rgb', arguments);
	},
	hsl: function () {
		return this.setSpace('hsl', arguments);
	},
	hsv: function () {
		return this.setSpace('hsv', arguments);
	},
	hwb: function () {
		return this.setSpace('hwb', arguments);
	},
	cmyk: function () {
		return this.setSpace('cmyk', arguments);
	},

	rgbArray: function () {
		return this.values.rgb;
	},
	hslArray: function () {
		return this.values.hsl;
	},
	hsvArray: function () {
		return this.values.hsv;
	},
	hwbArray: function () {
		var values = this.values;
		if (values.alpha !== 1) {
			return values.hwb.concat([values.alpha]);
		}
		return values.hwb;
	},
	cmykArray: function () {
		return this.values.cmyk;
	},
	rgbaArray: function () {
		var values = this.values;
		return values.rgb.concat([values.alpha]);
	},
	hslaArray: function () {
		var values = this.values;
		return values.hsl.concat([values.alpha]);
	},
	alpha: function (val) {
		if (val === undefined) {
			return this.values.alpha;
		}
		this.setValues('alpha', val);
		return this;
	},

	red: function (val) {
		return this.setChannel('rgb', 0, val);
	},
	green: function (val) {
		return this.setChannel('rgb', 1, val);
	},
	blue: function (val) {
		return this.setChannel('rgb', 2, val);
	},
	hue: function (val) {
		if (val) {
			val %= 360;
			val = val < 0 ? 360 + val : val;
		}
		return this.setChannel('hsl', 0, val);
	},
	saturation: function (val) {
		return this.setChannel('hsl', 1, val);
	},
	lightness: function (val) {
		return this.setChannel('hsl', 2, val);
	},
	saturationv: function (val) {
		return this.setChannel('hsv', 1, val);
	},
	whiteness: function (val) {
		return this.setChannel('hwb', 1, val);
	},
	blackness: function (val) {
		return this.setChannel('hwb', 2, val);
	},
	value: function (val) {
		return this.setChannel('hsv', 2, val);
	},
	cyan: function (val) {
		return this.setChannel('cmyk', 0, val);
	},
	magenta: function (val) {
		return this.setChannel('cmyk', 1, val);
	},
	yellow: function (val) {
		return this.setChannel('cmyk', 2, val);
	},
	black: function (val) {
		return this.setChannel('cmyk', 3, val);
	},

	hexString: function () {
		return string.hexString(this.values.rgb);
	},
	rgbString: function () {
		return string.rgbString(this.values.rgb, this.values.alpha);
	},
	rgbaString: function () {
		return string.rgbaString(this.values.rgb, this.values.alpha);
	},
	percentString: function () {
		return string.percentString(this.values.rgb, this.values.alpha);
	},
	hslString: function () {
		return string.hslString(this.values.hsl, this.values.alpha);
	},
	hslaString: function () {
		return string.hslaString(this.values.hsl, this.values.alpha);
	},
	hwbString: function () {
		return string.hwbString(this.values.hwb, this.values.alpha);
	},
	keyword: function () {
		return string.keyword(this.values.rgb, this.values.alpha);
	},

	rgbNumber: function () {
		var rgb = this.values.rgb;
		return (rgb[0] << 16) | (rgb[1] << 8) | rgb[2];
	},

	luminosity: function () {
		// http://www.w3.org/TR/WCAG20/#relativeluminancedef
		var rgb = this.values.rgb;
		var lum = [];
		for (var i = 0; i < rgb.length; i++) {
			var chan = rgb[i] / 255;
			lum[i] = (chan <= 0.03928) ? chan / 12.92 : Math.pow(((chan + 0.055) / 1.055), 2.4);
		}
		return 0.2126 * lum[0] + 0.7152 * lum[1] + 0.0722 * lum[2];
	},

	contrast: function (color2) {
		// http://www.w3.org/TR/WCAG20/#contrast-ratiodef
		var lum1 = this.luminosity();
		var lum2 = color2.luminosity();
		if (lum1 > lum2) {
			return (lum1 + 0.05) / (lum2 + 0.05);
		}
		return (lum2 + 0.05) / (lum1 + 0.05);
	},

	level: function (color2) {
		var contrastRatio = this.contrast(color2);
		if (contrastRatio >= 7.1) {
			return 'AAA';
		}

		return (contrastRatio >= 4.5) ? 'AA' : '';
	},

	dark: function () {
		// YIQ equation from http://24ways.org/2010/calculating-color-contrast
		var rgb = this.values.rgb;
		var yiq = (rgb[0] * 299 + rgb[1] * 587 + rgb[2] * 114) / 1000;
		return yiq < 128;
	},

	light: function () {
		return !this.dark();
	},

	negate: function () {
		var rgb = [];
		for (var i = 0; i < 3; i++) {
			rgb[i] = 255 - this.values.rgb[i];
		}
		this.setValues('rgb', rgb);
		return this;
	},

	lighten: function (ratio) {
		var hsl = this.values.hsl;
		hsl[2] += hsl[2] * ratio;
		this.setValues('hsl', hsl);
		return this;
	},

	darken: function (ratio) {
		var hsl = this.values.hsl;
		hsl[2] -= hsl[2] * ratio;
		this.setValues('hsl', hsl);
		return this;
	},

	saturate: function (ratio) {
		var hsl = this.values.hsl;
		hsl[1] += hsl[1] * ratio;
		this.setValues('hsl', hsl);
		return this;
	},

	desaturate: function (ratio) {
		var hsl = this.values.hsl;
		hsl[1] -= hsl[1] * ratio;
		this.setValues('hsl', hsl);
		return this;
	},

	whiten: function (ratio) {
		var hwb = this.values.hwb;
		hwb[1] += hwb[1] * ratio;
		this.setValues('hwb', hwb);
		return this;
	},

	blacken: function (ratio) {
		var hwb = this.values.hwb;
		hwb[2] += hwb[2] * ratio;
		this.setValues('hwb', hwb);
		return this;
	},

	greyscale: function () {
		var rgb = this.values.rgb;
		// http://en.wikipedia.org/wiki/Grayscale#Converting_color_to_grayscale
		var val = rgb[0] * 0.3 + rgb[1] * 0.59 + rgb[2] * 0.11;
		this.setValues('rgb', [val, val, val]);
		return this;
	},

	clearer: function (ratio) {
		var alpha = this.values.alpha;
		this.setValues('alpha', alpha - (alpha * ratio));
		return this;
	},

	opaquer: function (ratio) {
		var alpha = this.values.alpha;
		this.setValues('alpha', alpha + (alpha * ratio));
		return this;
	},

	rotate: function (degrees) {
		var hsl = this.values.hsl;
		var hue = (hsl[0] + degrees) % 360;
		hsl[0] = hue < 0 ? 360 + hue : hue;
		this.setValues('hsl', hsl);
		return this;
	},

	/**
	 * Ported from sass implementation in C
	 * https://github.com/sass/libsass/blob/0e6b4a2850092356aa3ece07c6b249f0221caced/functions.cpp#L209
	 */
	mix: function (mixinColor, weight) {
		var color1 = this;
		var color2 = mixinColor;
		var p = weight === undefined ? 0.5 : weight;

		var w = 2 * p - 1;
		var a = color1.alpha() - color2.alpha();

		var w1 = (((w * a === -1) ? w : (w + a) / (1 + w * a)) + 1) / 2.0;
		var w2 = 1 - w1;

		return this
			.rgb(
				w1 * color1.red() + w2 * color2.red(),
				w1 * color1.green() + w2 * color2.green(),
				w1 * color1.blue() + w2 * color2.blue()
			)
			.alpha(color1.alpha() * p + color2.alpha() * (1 - p));
	},

	toJSON: function () {
		return this.rgb();
	},

	clone: function () {
		// NOTE(SB): using node-clone creates a dependency to Buffer when using browserify,
		// making the final build way to big to embed in Chart.js. So let's do it manually,
		// assuming that values to clone are 1 dimension arrays containing only numbers,
		// except 'alpha' which is a number.
		var result = new Color();
		var source = this.values;
		var target = result.values;
		var value, type;

		for (var prop in source) {
			if (source.hasOwnProperty(prop)) {
				value = source[prop];
				type = ({}).toString.call(value);
				if (type === '[object Array]') {
					target[prop] = value.slice(0);
				} else if (type === '[object Number]') {
					target[prop] = value;
				} else {
					console.error('unexpected color value:', value);
				}
			}
		}

		return result;
	}
};

Color.prototype.spaces = {
	rgb: ['red', 'green', 'blue'],
	hsl: ['hue', 'saturation', 'lightness'],
	hsv: ['hue', 'saturation', 'value'],
	hwb: ['hue', 'whiteness', 'blackness'],
	cmyk: ['cyan', 'magenta', 'yellow', 'black']
};

Color.prototype.maxes = {
	rgb: [255, 255, 255],
	hsl: [360, 100, 100],
	hsv: [360, 100, 100],
	hwb: [360, 100, 100],
	cmyk: [100, 100, 100, 100]
};

Color.prototype.getValues = function (space) {
	var values = this.values;
	var vals = {};

	for (var i = 0; i < space.length; i++) {
		vals[space.charAt(i)] = values[space][i];
	}

	if (values.alpha !== 1) {
		vals.a = values.alpha;
	}

	// {r: 255, g: 255, b: 255, a: 0.4}
	return vals;
};

Color.prototype.setValues = function (space, vals) {
	var values = this.values;
	var spaces = this.spaces;
	var maxes = this.maxes;
	var alpha = 1;
	var i;

	this.valid = true;

	if (space === 'alpha') {
		alpha = vals;
	} else if (vals.length) {
		// [10, 10, 10]
		values[space] = vals.slice(0, space.length);
		alpha = vals[space.length];
	} else if (vals[space.charAt(0)] !== undefined) {
		// {r: 10, g: 10, b: 10}
		for (i = 0; i < space.length; i++) {
			values[space][i] = vals[space.charAt(i)];
		}

		alpha = vals.a;
	} else if (vals[spaces[space][0]] !== undefined) {
		// {red: 10, green: 10, blue: 10}
		var chans = spaces[space];

		for (i = 0; i < space.length; i++) {
			values[space][i] = vals[chans[i]];
		}

		alpha = vals.alpha;
	}

	values.alpha = Math.max(0, Math.min(1, (alpha === undefined ? values.alpha : alpha)));

	if (space === 'alpha') {
		return false;
	}

	var capped;

	// cap values of the space prior converting all values
	for (i = 0; i < space.length; i++) {
		capped = Math.max(0, Math.min(maxes[space][i], values[space][i]));
		values[space][i] = Math.round(capped);
	}

	// convert to all the other color spaces
	for (var sname in spaces) {
		if (sname !== space) {
			values[sname] = convert[space][sname](values[space]);
		}
	}

	return true;
};

Color.prototype.setSpace = function (space, args) {
	var vals = args[0];

	if (vals === undefined) {
		// color.rgb()
		return this.getValues(space);
	}

	// color.rgb(10, 10, 10)
	if (typeof vals === 'number') {
		vals = Array.prototype.slice.call(args);
	}

	this.setValues(space, vals);
	return this;
};

Color.prototype.setChannel = function (space, index, val) {
	var svalues = this.values[space];
	if (val === undefined) {
		// color.red()
		return svalues[index];
	} else if (val === svalues[index]) {
		// color.red(color.red())
		return this;
	}

	// color.red(100)
	svalues[index] = val;
	this.setValues(space, svalues);

	return this;
};

if (typeof window !== 'undefined') {
	window.Color = Color;
}

module.exports = Color;

},{"1":1,"4":4}],3:[function(require,module,exports){
/* MIT license */

module.exports = {
  rgb2hsl: rgb2hsl,
  rgb2hsv: rgb2hsv,
  rgb2hwb: rgb2hwb,
  rgb2cmyk: rgb2cmyk,
  rgb2keyword: rgb2keyword,
  rgb2xyz: rgb2xyz,
  rgb2lab: rgb2lab,
  rgb2lch: rgb2lch,

  hsl2rgb: hsl2rgb,
  hsl2hsv: hsl2hsv,
  hsl2hwb: hsl2hwb,
  hsl2cmyk: hsl2cmyk,
  hsl2keyword: hsl2keyword,

  hsv2rgb: hsv2rgb,
  hsv2hsl: hsv2hsl,
  hsv2hwb: hsv2hwb,
  hsv2cmyk: hsv2cmyk,
  hsv2keyword: hsv2keyword,

  hwb2rgb: hwb2rgb,
  hwb2hsl: hwb2hsl,
  hwb2hsv: hwb2hsv,
  hwb2cmyk: hwb2cmyk,
  hwb2keyword: hwb2keyword,

  cmyk2rgb: cmyk2rgb,
  cmyk2hsl: cmyk2hsl,
  cmyk2hsv: cmyk2hsv,
  cmyk2hwb: cmyk2hwb,
  cmyk2keyword: cmyk2keyword,

  keyword2rgb: keyword2rgb,
  keyword2hsl: keyword2hsl,
  keyword2hsv: keyword2hsv,
  keyword2hwb: keyword2hwb,
  keyword2cmyk: keyword2cmyk,
  keyword2lab: keyword2lab,
  keyword2xyz: keyword2xyz,

  xyz2rgb: xyz2rgb,
  xyz2lab: xyz2lab,
  xyz2lch: xyz2lch,

  lab2xyz: lab2xyz,
  lab2rgb: lab2rgb,
  lab2lch: lab2lch,

  lch2lab: lch2lab,
  lch2xyz: lch2xyz,
  lch2rgb: lch2rgb
}


function rgb2hsl(rgb) {
  var r = rgb[0]/255,
      g = rgb[1]/255,
      b = rgb[2]/255,
      min = Math.min(r, g, b),
      max = Math.max(r, g, b),
      delta = max - min,
      h, s, l;

  if (max == min)
    h = 0;
  else if (r == max)
    h = (g - b) / delta;
  else if (g == max)
    h = 2 + (b - r) / delta;
  else if (b == max)
    h = 4 + (r - g)/ delta;

  h = Math.min(h * 60, 360);

  if (h < 0)
    h += 360;

  l = (min + max) / 2;

  if (max == min)
    s = 0;
  else if (l <= 0.5)
    s = delta / (max + min);
  else
    s = delta / (2 - max - min);

  return [h, s * 100, l * 100];
}

function rgb2hsv(rgb) {
  var r = rgb[0],
      g = rgb[1],
      b = rgb[2],
      min = Math.min(r, g, b),
      max = Math.max(r, g, b),
      delta = max - min,
      h, s, v;

  if (max == 0)
    s = 0;
  else
    s = (delta/max * 1000)/10;

  if (max == min)
    h = 0;
  else if (r == max)
    h = (g - b) / delta;
  else if (g == max)
    h = 2 + (b - r) / delta;
  else if (b == max)
    h = 4 + (r - g) / delta;

  h = Math.min(h * 60, 360);

  if (h < 0)
    h += 360;

  v = ((max / 255) * 1000) / 10;

  return [h, s, v];
}

function rgb2hwb(rgb) {
  var r = rgb[0],
      g = rgb[1],
      b = rgb[2],
      h = rgb2hsl(rgb)[0],
      w = 1/255 * Math.min(r, Math.min(g, b)),
      b = 1 - 1/255 * Math.max(r, Math.max(g, b));

  return [h, w * 100, b * 100];
}

function rgb2cmyk(rgb) {
  var r = rgb[0] / 255,
      g = rgb[1] / 255,
      b = rgb[2] / 255,
      c, m, y, k;

  k = Math.min(1 - r, 1 - g, 1 - b);
  c = (1 - r - k) / (1 - k) || 0;
  m = (1 - g - k) / (1 - k) || 0;
  y = (1 - b - k) / (1 - k) || 0;
  return [c * 100, m * 100, y * 100, k * 100];
}

function rgb2keyword(rgb) {
  return reverseKeywords[JSON.stringify(rgb)];
}

function rgb2xyz(rgb) {
  var r = rgb[0] / 255,
      g = rgb[1] / 255,
      b = rgb[2] / 255;

  // assume sRGB
  r = r > 0.04045 ? Math.pow(((r + 0.055) / 1.055), 2.4) : (r / 12.92);
  g = g > 0.04045 ? Math.pow(((g + 0.055) / 1.055), 2.4) : (g / 12.92);
  b = b > 0.04045 ? Math.pow(((b + 0.055) / 1.055), 2.4) : (b / 12.92);

  var x = (r * 0.4124) + (g * 0.3576) + (b * 0.1805);
  var y = (r * 0.2126) + (g * 0.7152) + (b * 0.0722);
  var z = (r * 0.0193) + (g * 0.1192) + (b * 0.9505);

  return [x * 100, y *100, z * 100];
}

function rgb2lab(rgb) {
  var xyz = rgb2xyz(rgb),
        x = xyz[0],
        y = xyz[1],
        z = xyz[2],
        l, a, b;

  x /= 95.047;
  y /= 100;
  z /= 108.883;

  x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
  y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
  z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);

  l = (116 * y) - 16;
  a = 500 * (x - y);
  b = 200 * (y - z);

  return [l, a, b];
}

function rgb2lch(args) {
  return lab2lch(rgb2lab(args));
}

function hsl2rgb(hsl) {
  var h = hsl[0] / 360,
      s = hsl[1] / 100,
      l = hsl[2] / 100,
      t1, t2, t3, rgb, val;

  if (s == 0) {
    val = l * 255;
    return [val, val, val];
  }

  if (l < 0.5)
    t2 = l * (1 + s);
  else
    t2 = l + s - l * s;
  t1 = 2 * l - t2;

  rgb = [0, 0, 0];
  for (var i = 0; i < 3; i++) {
    t3 = h + 1 / 3 * - (i - 1);
    t3 < 0 && t3++;
    t3 > 1 && t3--;

    if (6 * t3 < 1)
      val = t1 + (t2 - t1) * 6 * t3;
    else if (2 * t3 < 1)
      val = t2;
    else if (3 * t3 < 2)
      val = t1 + (t2 - t1) * (2 / 3 - t3) * 6;
    else
      val = t1;

    rgb[i] = val * 255;
  }

  return rgb;
}

function hsl2hsv(hsl) {
  var h = hsl[0],
      s = hsl[1] / 100,
      l = hsl[2] / 100,
      sv, v;

  if(l === 0) {
      // no need to do calc on black
      // also avoids divide by 0 error
      return [0, 0, 0];
  }

  l *= 2;
  s *= (l <= 1) ? l : 2 - l;
  v = (l + s) / 2;
  sv = (2 * s) / (l + s);
  return [h, sv * 100, v * 100];
}

function hsl2hwb(args) {
  return rgb2hwb(hsl2rgb(args));
}

function hsl2cmyk(args) {
  return rgb2cmyk(hsl2rgb(args));
}

function hsl2keyword(args) {
  return rgb2keyword(hsl2rgb(args));
}


function hsv2rgb(hsv) {
  var h = hsv[0] / 60,
      s = hsv[1] / 100,
      v = hsv[2] / 100,
      hi = Math.floor(h) % 6;

  var f = h - Math.floor(h),
      p = 255 * v * (1 - s),
      q = 255 * v * (1 - (s * f)),
      t = 255 * v * (1 - (s * (1 - f))),
      v = 255 * v;

  switch(hi) {
    case 0:
      return [v, t, p];
    case 1:
      return [q, v, p];
    case 2:
      return [p, v, t];
    case 3:
      return [p, q, v];
    case 4:
      return [t, p, v];
    case 5:
      return [v, p, q];
  }
}

function hsv2hsl(hsv) {
  var h = hsv[0],
      s = hsv[1] / 100,
      v = hsv[2] / 100,
      sl, l;

  l = (2 - s) * v;
  sl = s * v;
  sl /= (l <= 1) ? l : 2 - l;
  sl = sl || 0;
  l /= 2;
  return [h, sl * 100, l * 100];
}

function hsv2hwb(args) {
  return rgb2hwb(hsv2rgb(args))
}

function hsv2cmyk(args) {
  return rgb2cmyk(hsv2rgb(args));
}

function hsv2keyword(args) {
  return rgb2keyword(hsv2rgb(args));
}

// http://dev.w3.org/csswg/css-color/#hwb-to-rgb
function hwb2rgb(hwb) {
  var h = hwb[0] / 360,
      wh = hwb[1] / 100,
      bl = hwb[2] / 100,
      ratio = wh + bl,
      i, v, f, n;

  // wh + bl cant be > 1
  if (ratio > 1) {
    wh /= ratio;
    bl /= ratio;
  }

  i = Math.floor(6 * h);
  v = 1 - bl;
  f = 6 * h - i;
  if ((i & 0x01) != 0) {
    f = 1 - f;
  }
  n = wh + f * (v - wh);  // linear interpolation

  switch (i) {
    default:
    case 6:
    case 0: r = v; g = n; b = wh; break;
    case 1: r = n; g = v; b = wh; break;
    case 2: r = wh; g = v; b = n; break;
    case 3: r = wh; g = n; b = v; break;
    case 4: r = n; g = wh; b = v; break;
    case 5: r = v; g = wh; b = n; break;
  }

  return [r * 255, g * 255, b * 255];
}

function hwb2hsl(args) {
  return rgb2hsl(hwb2rgb(args));
}

function hwb2hsv(args) {
  return rgb2hsv(hwb2rgb(args));
}

function hwb2cmyk(args) {
  return rgb2cmyk(hwb2rgb(args));
}

function hwb2keyword(args) {
  return rgb2keyword(hwb2rgb(args));
}

function cmyk2rgb(cmyk) {
  var c = cmyk[0] / 100,
      m = cmyk[1] / 100,
      y = cmyk[2] / 100,
      k = cmyk[3] / 100,
      r, g, b;

  r = 1 - Math.min(1, c * (1 - k) + k);
  g = 1 - Math.min(1, m * (1 - k) + k);
  b = 1 - Math.min(1, y * (1 - k) + k);
  return [r * 255, g * 255, b * 255];
}

function cmyk2hsl(args) {
  return rgb2hsl(cmyk2rgb(args));
}

function cmyk2hsv(args) {
  return rgb2hsv(cmyk2rgb(args));
}

function cmyk2hwb(args) {
  return rgb2hwb(cmyk2rgb(args));
}

function cmyk2keyword(args) {
  return rgb2keyword(cmyk2rgb(args));
}


function xyz2rgb(xyz) {
  var x = xyz[0] / 100,
      y = xyz[1] / 100,
      z = xyz[2] / 100,
      r, g, b;

  r = (x * 3.2406) + (y * -1.5372) + (z * -0.4986);
  g = (x * -0.9689) + (y * 1.8758) + (z * 0.0415);
  b = (x * 0.0557) + (y * -0.2040) + (z * 1.0570);

  // assume sRGB
  r = r > 0.0031308 ? ((1.055 * Math.pow(r, 1.0 / 2.4)) - 0.055)
    : r = (r * 12.92);

  g = g > 0.0031308 ? ((1.055 * Math.pow(g, 1.0 / 2.4)) - 0.055)
    : g = (g * 12.92);

  b = b > 0.0031308 ? ((1.055 * Math.pow(b, 1.0 / 2.4)) - 0.055)
    : b = (b * 12.92);

  r = Math.min(Math.max(0, r), 1);
  g = Math.min(Math.max(0, g), 1);
  b = Math.min(Math.max(0, b), 1);

  return [r * 255, g * 255, b * 255];
}

function xyz2lab(xyz) {
  var x = xyz[0],
      y = xyz[1],
      z = xyz[2],
      l, a, b;

  x /= 95.047;
  y /= 100;
  z /= 108.883;

  x = x > 0.008856 ? Math.pow(x, 1/3) : (7.787 * x) + (16 / 116);
  y = y > 0.008856 ? Math.pow(y, 1/3) : (7.787 * y) + (16 / 116);
  z = z > 0.008856 ? Math.pow(z, 1/3) : (7.787 * z) + (16 / 116);

  l = (116 * y) - 16;
  a = 500 * (x - y);
  b = 200 * (y - z);

  return [l, a, b];
}

function xyz2lch(args) {
  return lab2lch(xyz2lab(args));
}

function lab2xyz(lab) {
  var l = lab[0],
      a = lab[1],
      b = lab[2],
      x, y, z, y2;

  if (l <= 8) {
    y = (l * 100) / 903.3;
    y2 = (7.787 * (y / 100)) + (16 / 116);
  } else {
    y = 100 * Math.pow((l + 16) / 116, 3);
    y2 = Math.pow(y / 100, 1/3);
  }

  x = x / 95.047 <= 0.008856 ? x = (95.047 * ((a / 500) + y2 - (16 / 116))) / 7.787 : 95.047 * Math.pow((a / 500) + y2, 3);

  z = z / 108.883 <= 0.008859 ? z = (108.883 * (y2 - (b / 200) - (16 / 116))) / 7.787 : 108.883 * Math.pow(y2 - (b / 200), 3);

  return [x, y, z];
}

function lab2lch(lab) {
  var l = lab[0],
      a = lab[1],
      b = lab[2],
      hr, h, c;

  hr = Math.atan2(b, a);
  h = hr * 360 / 2 / Math.PI;
  if (h < 0) {
    h += 360;
  }
  c = Math.sqrt(a * a + b * b);
  return [l, c, h];
}

function lab2rgb(args) {
  return xyz2rgb(lab2xyz(args));
}

function lch2lab(lch) {
  var l = lch[0],
      c = lch[1],
      h = lch[2],
      a, b, hr;

  hr = h / 360 * 2 * Math.PI;
  a = c * Math.cos(hr);
  b = c * Math.sin(hr);
  return [l, a, b];
}

function lch2xyz(args) {
  return lab2xyz(lch2lab(args));
}

function lch2rgb(args) {
  return lab2rgb(lch2lab(args));
}

function keyword2rgb(keyword) {
  return cssKeywords[keyword];
}

function keyword2hsl(args) {
  return rgb2hsl(keyword2rgb(args));
}

function keyword2hsv(args) {
  return rgb2hsv(keyword2rgb(args));
}

function keyword2hwb(args) {
  return rgb2hwb(keyword2rgb(args));
}

function keyword2cmyk(args) {
  return rgb2cmyk(keyword2rgb(args));
}

function keyword2lab(args) {
  return rgb2lab(keyword2rgb(args));
}

function keyword2xyz(args) {
  return rgb2xyz(keyword2rgb(args));
}

var cssKeywords = {
  aliceblue:  [240,248,255],
  antiquewhite: [250,235,215],
  aqua: [0,255,255],
  aquamarine: [127,255,212],
  azure:  [240,255,255],
  beige:  [245,245,220],
  bisque: [255,228,196],
  black:  [0,0,0],
  blanchedalmond: [255,235,205],
  blue: [0,0,255],
  blueviolet: [138,43,226],
  brown:  [165,42,42],
  burlywood:  [222,184,135],
  cadetblue:  [95,158,160],
  chartreuse: [127,255,0],
  chocolate:  [210,105,30],
  coral:  [255,127,80],
  cornflowerblue: [100,149,237],
  cornsilk: [255,248,220],
  crimson:  [220,20,60],
  cyan: [0,255,255],
  darkblue: [0,0,139],
  darkcyan: [0,139,139],
  darkgoldenrod:  [184,134,11],
  darkgray: [169,169,169],
  darkgreen:  [0,100,0],
  darkgrey: [169,169,169],
  darkkhaki:  [189,183,107],
  darkmagenta:  [139,0,139],
  darkolivegreen: [85,107,47],
  darkorange: [255,140,0],
  darkorchid: [153,50,204],
  darkred:  [139,0,0],
  darksalmon: [233,150,122],
  darkseagreen: [143,188,143],
  darkslateblue:  [72,61,139],
  darkslategray:  [47,79,79],
  darkslategrey:  [47,79,79],
  darkturquoise:  [0,206,209],
  darkviolet: [148,0,211],
  deeppink: [255,20,147],
  deepskyblue:  [0,191,255],
  dimgray:  [105,105,105],
  dimgrey:  [105,105,105],
  dodgerblue: [30,144,255],
  firebrick:  [178,34,34],
  floralwhite:  [255,250,240],
  forestgreen:  [34,139,34],
  fuchsia:  [255,0,255],
  gainsboro:  [220,220,220],
  ghostwhite: [248,248,255],
  gold: [255,215,0],
  goldenrod:  [218,165,32],
  gray: [128,128,128],
  green:  [0,128,0],
  greenyellow:  [173,255,47],
  grey: [128,128,128],
  honeydew: [240,255,240],
  hotpink:  [255,105,180],
  indianred:  [205,92,92],
  indigo: [75,0,130],
  ivory:  [255,255,240],
  khaki:  [240,230,140],
  lavender: [230,230,250],
  lavenderblush:  [255,240,245],
  lawngreen:  [124,252,0],
  lemonchiffon: [255,250,205],
  lightblue:  [173,216,230],
  lightcoral: [240,128,128],
  lightcyan:  [224,255,255],
  lightgoldenrodyellow: [250,250,210],
  lightgray:  [211,211,211],
  lightgreen: [144,238,144],
  lightgrey:  [211,211,211],
  lightpink:  [255,182,193],
  lightsalmon:  [255,160,122],
  lightseagreen:  [32,178,170],
  lightskyblue: [135,206,250],
  lightslategray: [119,136,153],
  lightslategrey: [119,136,153],
  lightsteelblue: [176,196,222],
  lightyellow:  [255,255,224],
  lime: [0,255,0],
  limegreen:  [50,205,50],
  linen:  [250,240,230],
  magenta:  [255,0,255],
  maroon: [128,0,0],
  mediumaquamarine: [102,205,170],
  mediumblue: [0,0,205],
  mediumorchid: [186,85,211],
  mediumpurple: [147,112,219],
  mediumseagreen: [60,179,113],
  mediumslateblue:  [123,104,238],
  mediumspringgreen:  [0,250,154],
  mediumturquoise:  [72,209,204],
  mediumvioletred:  [199,21,133],
  midnightblue: [25,25,112],
  mintcream:  [245,255,250],
  mistyrose:  [255,228,225],
  moccasin: [255,228,181],
  navajowhite:  [255,222,173],
  navy: [0,0,128],
  oldlace:  [253,245,230],
  olive:  [128,128,0],
  olivedrab:  [107,142,35],
  orange: [255,165,0],
  orangered:  [255,69,0],
  orchid: [218,112,214],
  palegoldenrod:  [238,232,170],
  palegreen:  [152,251,152],
  paleturquoise:  [175,238,238],
  palevioletred:  [219,112,147],
  papayawhip: [255,239,213],
  peachpuff:  [255,218,185],
  peru: [205,133,63],
  pink: [255,192,203],
  plum: [221,160,221],
  powderblue: [176,224,230],
  purple: [128,0,128],
  rebeccapurple: [102, 51, 153],
  red:  [255,0,0],
  rosybrown:  [188,143,143],
  royalblue:  [65,105,225],
  saddlebrown:  [139,69,19],
  salmon: [250,128,114],
  sandybrown: [244,164,96],
  seagreen: [46,139,87],
  seashell: [255,245,238],
  sienna: [160,82,45],
  silver: [192,192,192],
  skyblue:  [135,206,235],
  slateblue:  [106,90,205],
  slategray:  [112,128,144],
  slategrey:  [112,128,144],
  snow: [255,250,250],
  springgreen:  [0,255,127],
  steelblue:  [70,130,180],
  tan:  [210,180,140],
  teal: [0,128,128],
  thistle:  [216,191,216],
  tomato: [255,99,71],
  turquoise:  [64,224,208],
  violet: [238,130,238],
  wheat:  [245,222,179],
  white:  [255,255,255],
  whitesmoke: [245,245,245],
  yellow: [255,255,0],
  yellowgreen:  [154,205,50]
};

var reverseKeywords = {};
for (var key in cssKeywords) {
  reverseKeywords[JSON.stringify(cssKeywords[key])] = key;
}

},{}],4:[function(require,module,exports){
var conversions = require(3);

var convert = function() {
   return new Converter();
}

for (var func in conversions) {
  // export Raw versions
  convert[func + "Raw"] =  (function(func) {
    // accept array or plain args
    return function(arg) {
      if (typeof arg == "number")
        arg = Array.prototype.slice.call(arguments);
      return conversions[func](arg);
    }
  })(func);

  var pair = /(\w+)2(\w+)/.exec(func),
      from = pair[1],
      to = pair[2];

  // export rgb2hsl and ["rgb"]["hsl"]
  convert[from] = convert[from] || {};

  convert[from][to] = convert[func] = (function(func) { 
    return function(arg) {
      if (typeof arg == "number")
        arg = Array.prototype.slice.call(arguments);
      
      var val = conversions[func](arg);
      if (typeof val == "string" || val === undefined)
        return val; // keyword

      for (var i = 0; i < val.length; i++)
        val[i] = Math.round(val[i]);
      return val;
    }
  })(func);
}


/* Converter does lazy conversion and caching */
var Converter = function() {
   this.convs = {};
};

/* Either get the values for a space or
  set the values for a space, depending on args */
Converter.prototype.routeSpace = function(space, args) {
   var values = args[0];
   if (values === undefined) {
      // color.rgb()
      return this.getValues(space);
   }
   // color.rgb(10, 10, 10)
   if (typeof values == "number") {
      values = Array.prototype.slice.call(args);        
   }

   return this.setValues(space, values);
};
  
/* Set the values for a space, invalidating cache */
Converter.prototype.setValues = function(space, values) {
   this.space = space;
   this.convs = {};
   this.convs[space] = values;
   return this;
};

/* Get the values for a space. If there's already
  a conversion for the space, fetch it, otherwise
  compute it */
Converter.prototype.getValues = function(space) {
   var vals = this.convs[space];
   if (!vals) {
      var fspace = this.space,
          from = this.convs[fspace];
      vals = convert[fspace][space](from);

      this.convs[space] = vals;
   }
  return vals;
};

["rgb", "hsl", "hsv", "cmyk", "keyword"].forEach(function(space) {
   Converter.prototype[space] = function(vals) {
      return this.routeSpace(space, arguments);
   }
});

module.exports = convert;
},{"3":3}],5:[function(require,module,exports){
'use strict'

module.exports = {
	"aliceblue": [240, 248, 255],
	"antiquewhite": [250, 235, 215],
	"aqua": [0, 255, 255],
	"aquamarine": [127, 255, 212],
	"azure": [240, 255, 255],
	"beige": [245, 245, 220],
	"bisque": [255, 228, 196],
	"black": [0, 0, 0],
	"blanchedalmond": [255, 235, 205],
	"blue": [0, 0, 255],
	"blueviolet": [138, 43, 226],
	"brown": [165, 42, 42],
	"burlywood": [222, 184, 135],
	"cadetblue": [95, 158, 160],
	"chartreuse": [127, 255, 0],
	"chocolate": [210, 105, 30],
	"coral": [255, 127, 80],
	"cornflowerblue": [100, 149, 237],
	"cornsilk": [255, 248, 220],
	"crimson": [220, 20, 60],
	"cyan": [0, 255, 255],
	"darkblue": [0, 0, 139],
	"darkcyan": [0, 139, 139],
	"darkgoldenrod": [184, 134, 11],
	"darkgray": [169, 169, 169],
	"darkgreen": [0, 100, 0],
	"darkgrey": [169, 169, 169],
	"darkkhaki": [189, 183, 107],
	"darkmagenta": [139, 0, 139],
	"darkolivegreen": [85, 107, 47],
	"darkorange": [255, 140, 0],
	"darkorchid": [153, 50, 204],
	"darkred": [139, 0, 0],
	"darksalmon": [233, 150, 122],
	"darkseagreen": [143, 188, 143],
	"darkslateblue": [72, 61, 139],
	"darkslategray": [47, 79, 79],
	"darkslategrey": [47, 79, 79],
	"darkturquoise": [0, 206, 209],
	"darkviolet": [148, 0, 211],
	"deeppink": [255, 20, 147],
	"deepskyblue": [0, 191, 255],
	"dimgray": [105, 105, 105],
	"dimgrey": [105, 105, 105],
	"dodgerblue": [30, 144, 255],
	"firebrick": [178, 34, 34],
	"floralwhite": [255, 250, 240],
	"forestgreen": [34, 139, 34],
	"fuchsia": [255, 0, 255],
	"gainsboro": [220, 220, 220],
	"ghostwhite": [248, 248, 255],
	"gold": [255, 215, 0],
	"goldenrod": [218, 165, 32],
	"gray": [128, 128, 128],
	"green": [0, 128, 0],
	"greenyellow": [173, 255, 47],
	"grey": [128, 128, 128],
	"honeydew": [240, 255, 240],
	"hotpink": [255, 105, 180],
	"indianred": [205, 92, 92],
	"indigo": [75, 0, 130],
	"ivory": [255, 255, 240],
	"khaki": [240, 230, 140],
	"lavender": [230, 230, 250],
	"lavenderblush": [255, 240, 245],
	"lawngreen": [124, 252, 0],
	"lemonchiffon": [255, 250, 205],
	"lightblue": [173, 216, 230],
	"lightcoral": [240, 128, 128],
	"lightcyan": [224, 255, 255],
	"lightgoldenrodyellow": [250, 250, 210],
	"lightgray": [211, 211, 211],
	"lightgreen": [144, 238, 144],
	"lightgrey": [211, 211, 211],
	"lightpink": [255, 182, 193],
	"lightsalmon": [255, 160, 122],
	"lightseagreen": [32, 178, 170],
	"lightskyblue": [135, 206, 250],
	"lightslategray": [119, 136, 153],
	"lightslategrey": [119, 136, 153],
	"lightsteelblue": [176, 196, 222],
	"lightyellow": [255, 255, 224],
	"lime": [0, 255, 0],
	"limegreen": [50, 205, 50],
	"linen": [250, 240, 230],
	"magenta": [255, 0, 255],
	"maroon": [128, 0, 0],
	"mediumaquamarine": [102, 205, 170],
	"mediumblue": [0, 0, 205],
	"mediumorchid": [186, 85, 211],
	"mediumpurple": [147, 112, 219],
	"mediumseagreen": [60, 179, 113],
	"mediumslateblue": [123, 104, 238],
	"mediumspringgreen": [0, 250, 154],
	"mediumturquoise": [72, 209, 204],
	"mediumvioletred": [199, 21, 133],
	"midnightblue": [25, 25, 112],
	"mintcream": [245, 255, 250],
	"mistyrose": [255, 228, 225],
	"moccasin": [255, 228, 181],
	"navajowhite": [255, 222, 173],
	"navy": [0, 0, 128],
	"oldlace": [253, 245, 230],
	"olive": [128, 128, 0],
	"olivedrab": [107, 142, 35],
	"orange": [255, 165, 0],
	"orangered": [255, 69, 0],
	"orchid": [218, 112, 214],
	"palegoldenrod": [238, 232, 170],
	"palegreen": [152, 251, 152],
	"paleturquoise": [175, 238, 238],
	"palevioletred": [219, 112, 147],
	"papayawhip": [255, 239, 213],
	"peachpuff": [255, 218, 185],
	"peru": [205, 133, 63],
	"pink": [255, 192, 203],
	"plum": [221, 160, 221],
	"powderblue": [176, 224, 230],
	"purple": [128, 0, 128],
	"rebeccapurple": [102, 51, 153],
	"red": [255, 0, 0],
	"rosybrown": [188, 143, 143],
	"royalblue": [65, 105, 225],
	"saddlebrown": [139, 69, 19],
	"salmon": [250, 128, 114],
	"sandybrown": [244, 164, 96],
	"seagreen": [46, 139, 87],
	"seashell": [255, 245, 238],
	"sienna": [160, 82, 45],
	"silver": [192, 192, 192],
	"skyblue": [135, 206, 235],
	"slateblue": [106, 90, 205],
	"slategray": [112, 128, 144],
	"slategrey": [112, 128, 144],
	"snow": [255, 250, 250],
	"springgreen": [0, 255, 127],
	"steelblue": [70, 130, 180],
	"tan": [210, 180, 140],
	"teal": [0, 128, 128],
	"thistle": [216, 191, 216],
	"tomato": [255, 99, 71],
	"turquoise": [64, 224, 208],
	"violet": [238, 130, 238],
	"wheat": [245, 222, 179],
	"white": [255, 255, 255],
	"whitesmoke": [245, 245, 245],
	"yellow": [255, 255, 0],
	"yellowgreen": [154, 205, 50]
};

},{}],6:[function(require,module,exports){
//! moment.js
//! version : 2.18.1
//! authors : Tim Wood, Iskren Chernev, Moment.js contributors
//! license : MIT
//! momentjs.com

;(function (global, factory) {
    typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
    typeof define === 'function' && define.amd ? define(factory) :
    global.moment = factory()
}(this, (function () { 'use strict';

var hookCallback;

function hooks () {
    return hookCallback.apply(null, arguments);
}

// This is done to register the method called with moment()
// without creating circular dependencies.
function setHookCallback (callback) {
    hookCallback = callback;
}

function isArray(input) {
    return input instanceof Array || Object.prototype.toString.call(input) === '[object Array]';
}

function isObject(input) {
    // IE8 will treat undefined and null as object if it wasn't for
    // input != null
    return input != null && Object.prototype.toString.call(input) === '[object Object]';
}

function isObjectEmpty(obj) {
    var k;
    for (k in obj) {
        // even if its not own property I'd still call it non-empty
        return false;
    }
    return true;
}

function isUndefined(input) {
    return input === void 0;
}

function isNumber(input) {
    return typeof input === 'number' || Object.prototype.toString.call(input) === '[object Number]';
}

function isDate(input) {
    return input instanceof Date || Object.prototype.toString.call(input) === '[object Date]';
}

function map(arr, fn) {
    var res = [], i;
    for (i = 0; i < arr.length; ++i) {
        res.push(fn(arr[i], i));
    }
    return res;
}

function hasOwnProp(a, b) {
    return Object.prototype.hasOwnProperty.call(a, b);
}

function extend(a, b) {
    for (var i in b) {
        if (hasOwnProp(b, i)) {
            a[i] = b[i];
        }
    }

    if (hasOwnProp(b, 'toString')) {
        a.toString = b.toString;
    }

    if (hasOwnProp(b, 'valueOf')) {
        a.valueOf = b.valueOf;
    }

    return a;
}

function createUTC (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, true).utc();
}

function defaultParsingFlags() {
    // We need to deep clone this object.
    return {
        empty           : false,
        unusedTokens    : [],
        unusedInput     : [],
        overflow        : -2,
        charsLeftOver   : 0,
        nullInput       : false,
        invalidMonth    : null,
        invalidFormat   : false,
        userInvalidated : false,
        iso             : false,
        parsedDateParts : [],
        meridiem        : null,
        rfc2822         : false,
        weekdayMismatch : false
    };
}

function getParsingFlags(m) {
    if (m._pf == null) {
        m._pf = defaultParsingFlags();
    }
    return m._pf;
}

var some;
if (Array.prototype.some) {
    some = Array.prototype.some;
} else {
    some = function (fun) {
        var t = Object(this);
        var len = t.length >>> 0;

        for (var i = 0; i < len; i++) {
            if (i in t && fun.call(this, t[i], i, t)) {
                return true;
            }
        }

        return false;
    };
}

var some$1 = some;

function isValid(m) {
    if (m._isValid == null) {
        var flags = getParsingFlags(m);
        var parsedParts = some$1.call(flags.parsedDateParts, function (i) {
            return i != null;
        });
        var isNowValid = !isNaN(m._d.getTime()) &&
            flags.overflow < 0 &&
            !flags.empty &&
            !flags.invalidMonth &&
            !flags.invalidWeekday &&
            !flags.nullInput &&
            !flags.invalidFormat &&
            !flags.userInvalidated &&
            (!flags.meridiem || (flags.meridiem && parsedParts));

        if (m._strict) {
            isNowValid = isNowValid &&
                flags.charsLeftOver === 0 &&
                flags.unusedTokens.length === 0 &&
                flags.bigHour === undefined;
        }

        if (Object.isFrozen == null || !Object.isFrozen(m)) {
            m._isValid = isNowValid;
        }
        else {
            return isNowValid;
        }
    }
    return m._isValid;
}

function createInvalid (flags) {
    var m = createUTC(NaN);
    if (flags != null) {
        extend(getParsingFlags(m), flags);
    }
    else {
        getParsingFlags(m).userInvalidated = true;
    }

    return m;
}

// Plugins that add properties should also add the key here (null value),
// so we can properly clone ourselves.
var momentProperties = hooks.momentProperties = [];

function copyConfig(to, from) {
    var i, prop, val;

    if (!isUndefined(from._isAMomentObject)) {
        to._isAMomentObject = from._isAMomentObject;
    }
    if (!isUndefined(from._i)) {
        to._i = from._i;
    }
    if (!isUndefined(from._f)) {
        to._f = from._f;
    }
    if (!isUndefined(from._l)) {
        to._l = from._l;
    }
    if (!isUndefined(from._strict)) {
        to._strict = from._strict;
    }
    if (!isUndefined(from._tzm)) {
        to._tzm = from._tzm;
    }
    if (!isUndefined(from._isUTC)) {
        to._isUTC = from._isUTC;
    }
    if (!isUndefined(from._offset)) {
        to._offset = from._offset;
    }
    if (!isUndefined(from._pf)) {
        to._pf = getParsingFlags(from);
    }
    if (!isUndefined(from._locale)) {
        to._locale = from._locale;
    }

    if (momentProperties.length > 0) {
        for (i = 0; i < momentProperties.length; i++) {
            prop = momentProperties[i];
            val = from[prop];
            if (!isUndefined(val)) {
                to[prop] = val;
            }
        }
    }

    return to;
}

var updateInProgress = false;

// Moment prototype object
function Moment(config) {
    copyConfig(this, config);
    this._d = new Date(config._d != null ? config._d.getTime() : NaN);
    if (!this.isValid()) {
        this._d = new Date(NaN);
    }
    // Prevent infinite loop in case updateOffset creates new moment
    // objects.
    if (updateInProgress === false) {
        updateInProgress = true;
        hooks.updateOffset(this);
        updateInProgress = false;
    }
}

function isMoment (obj) {
    return obj instanceof Moment || (obj != null && obj._isAMomentObject != null);
}

function absFloor (number) {
    if (number < 0) {
        // -0 -> 0
        return Math.ceil(number) || 0;
    } else {
        return Math.floor(number);
    }
}

function toInt(argumentForCoercion) {
    var coercedNumber = +argumentForCoercion,
        value = 0;

    if (coercedNumber !== 0 && isFinite(coercedNumber)) {
        value = absFloor(coercedNumber);
    }

    return value;
}

// compare two arrays, return the number of differences
function compareArrays(array1, array2, dontConvert) {
    var len = Math.min(array1.length, array2.length),
        lengthDiff = Math.abs(array1.length - array2.length),
        diffs = 0,
        i;
    for (i = 0; i < len; i++) {
        if ((dontConvert && array1[i] !== array2[i]) ||
            (!dontConvert && toInt(array1[i]) !== toInt(array2[i]))) {
            diffs++;
        }
    }
    return diffs + lengthDiff;
}

function warn(msg) {
    if (hooks.suppressDeprecationWarnings === false &&
            (typeof console !==  'undefined') && console.warn) {
        console.warn('Deprecation warning: ' + msg);
    }
}

function deprecate(msg, fn) {
    var firstTime = true;

    return extend(function () {
        if (hooks.deprecationHandler != null) {
            hooks.deprecationHandler(null, msg);
        }
        if (firstTime) {
            var args = [];
            var arg;
            for (var i = 0; i < arguments.length; i++) {
                arg = '';
                if (typeof arguments[i] === 'object') {
                    arg += '\n[' + i + '] ';
                    for (var key in arguments[0]) {
                        arg += key + ': ' + arguments[0][key] + ', ';
                    }
                    arg = arg.slice(0, -2); // Remove trailing comma and space
                } else {
                    arg = arguments[i];
                }
                args.push(arg);
            }
            warn(msg + '\nArguments: ' + Array.prototype.slice.call(args).join('') + '\n' + (new Error()).stack);
            firstTime = false;
        }
        return fn.apply(this, arguments);
    }, fn);
}

var deprecations = {};

function deprecateSimple(name, msg) {
    if (hooks.deprecationHandler != null) {
        hooks.deprecationHandler(name, msg);
    }
    if (!deprecations[name]) {
        warn(msg);
        deprecations[name] = true;
    }
}

hooks.suppressDeprecationWarnings = false;
hooks.deprecationHandler = null;

function isFunction(input) {
    return input instanceof Function || Object.prototype.toString.call(input) === '[object Function]';
}

function set (config) {
    var prop, i;
    for (i in config) {
        prop = config[i];
        if (isFunction(prop)) {
            this[i] = prop;
        } else {
            this['_' + i] = prop;
        }
    }
    this._config = config;
    // Lenient ordinal parsing accepts just a number in addition to
    // number + (possibly) stuff coming from _dayOfMonthOrdinalParse.
    // TODO: Remove "ordinalParse" fallback in next major release.
    this._dayOfMonthOrdinalParseLenient = new RegExp(
        (this._dayOfMonthOrdinalParse.source || this._ordinalParse.source) +
            '|' + (/\d{1,2}/).source);
}

function mergeConfigs(parentConfig, childConfig) {
    var res = extend({}, parentConfig), prop;
    for (prop in childConfig) {
        if (hasOwnProp(childConfig, prop)) {
            if (isObject(parentConfig[prop]) && isObject(childConfig[prop])) {
                res[prop] = {};
                extend(res[prop], parentConfig[prop]);
                extend(res[prop], childConfig[prop]);
            } else if (childConfig[prop] != null) {
                res[prop] = childConfig[prop];
            } else {
                delete res[prop];
            }
        }
    }
    for (prop in parentConfig) {
        if (hasOwnProp(parentConfig, prop) &&
                !hasOwnProp(childConfig, prop) &&
                isObject(parentConfig[prop])) {
            // make sure changes to properties don't modify parent config
            res[prop] = extend({}, res[prop]);
        }
    }
    return res;
}

function Locale(config) {
    if (config != null) {
        this.set(config);
    }
}

var keys;

if (Object.keys) {
    keys = Object.keys;
} else {
    keys = function (obj) {
        var i, res = [];
        for (i in obj) {
            if (hasOwnProp(obj, i)) {
                res.push(i);
            }
        }
        return res;
    };
}

var keys$1 = keys;

var defaultCalendar = {
    sameDay : '[Today at] LT',
    nextDay : '[Tomorrow at] LT',
    nextWeek : 'dddd [at] LT',
    lastDay : '[Yesterday at] LT',
    lastWeek : '[Last] dddd [at] LT',
    sameElse : 'L'
};

function calendar (key, mom, now) {
    var output = this._calendar[key] || this._calendar['sameElse'];
    return isFunction(output) ? output.call(mom, now) : output;
}

var defaultLongDateFormat = {
    LTS  : 'h:mm:ss A',
    LT   : 'h:mm A',
    L    : 'MM/DD/YYYY',
    LL   : 'MMMM D, YYYY',
    LLL  : 'MMMM D, YYYY h:mm A',
    LLLL : 'dddd, MMMM D, YYYY h:mm A'
};

function longDateFormat (key) {
    var format = this._longDateFormat[key],
        formatUpper = this._longDateFormat[key.toUpperCase()];

    if (format || !formatUpper) {
        return format;
    }

    this._longDateFormat[key] = formatUpper.replace(/MMMM|MM|DD|dddd/g, function (val) {
        return val.slice(1);
    });

    return this._longDateFormat[key];
}

var defaultInvalidDate = 'Invalid date';

function invalidDate () {
    return this._invalidDate;
}

var defaultOrdinal = '%d';
var defaultDayOfMonthOrdinalParse = /\d{1,2}/;

function ordinal (number) {
    return this._ordinal.replace('%d', number);
}

var defaultRelativeTime = {
    future : 'in %s',
    past   : '%s ago',
    s  : 'a few seconds',
    ss : '%d seconds',
    m  : 'a minute',
    mm : '%d minutes',
    h  : 'an hour',
    hh : '%d hours',
    d  : 'a day',
    dd : '%d days',
    M  : 'a month',
    MM : '%d months',
    y  : 'a year',
    yy : '%d years'
};

function relativeTime (number, withoutSuffix, string, isFuture) {
    var output = this._relativeTime[string];
    return (isFunction(output)) ?
        output(number, withoutSuffix, string, isFuture) :
        output.replace(/%d/i, number);
}

function pastFuture (diff, output) {
    var format = this._relativeTime[diff > 0 ? 'future' : 'past'];
    return isFunction(format) ? format(output) : format.replace(/%s/i, output);
}

var aliases = {};

function addUnitAlias (unit, shorthand) {
    var lowerCase = unit.toLowerCase();
    aliases[lowerCase] = aliases[lowerCase + 's'] = aliases[shorthand] = unit;
}

function normalizeUnits(units) {
    return typeof units === 'string' ? aliases[units] || aliases[units.toLowerCase()] : undefined;
}

function normalizeObjectUnits(inputObject) {
    var normalizedInput = {},
        normalizedProp,
        prop;

    for (prop in inputObject) {
        if (hasOwnProp(inputObject, prop)) {
            normalizedProp = normalizeUnits(prop);
            if (normalizedProp) {
                normalizedInput[normalizedProp] = inputObject[prop];
            }
        }
    }

    return normalizedInput;
}

var priorities = {};

function addUnitPriority(unit, priority) {
    priorities[unit] = priority;
}

function getPrioritizedUnits(unitsObj) {
    var units = [];
    for (var u in unitsObj) {
        units.push({unit: u, priority: priorities[u]});
    }
    units.sort(function (a, b) {
        return a.priority - b.priority;
    });
    return units;
}

function makeGetSet (unit, keepTime) {
    return function (value) {
        if (value != null) {
            set$1(this, unit, value);
            hooks.updateOffset(this, keepTime);
            return this;
        } else {
            return get(this, unit);
        }
    };
}

function get (mom, unit) {
    return mom.isValid() ?
        mom._d['get' + (mom._isUTC ? 'UTC' : '') + unit]() : NaN;
}

function set$1 (mom, unit, value) {
    if (mom.isValid()) {
        mom._d['set' + (mom._isUTC ? 'UTC' : '') + unit](value);
    }
}

// MOMENTS

function stringGet (units) {
    units = normalizeUnits(units);
    if (isFunction(this[units])) {
        return this[units]();
    }
    return this;
}


function stringSet (units, value) {
    if (typeof units === 'object') {
        units = normalizeObjectUnits(units);
        var prioritized = getPrioritizedUnits(units);
        for (var i = 0; i < prioritized.length; i++) {
            this[prioritized[i].unit](units[prioritized[i].unit]);
        }
    } else {
        units = normalizeUnits(units);
        if (isFunction(this[units])) {
            return this[units](value);
        }
    }
    return this;
}

function zeroFill(number, targetLength, forceSign) {
    var absNumber = '' + Math.abs(number),
        zerosToFill = targetLength - absNumber.length,
        sign = number >= 0;
    return (sign ? (forceSign ? '+' : '') : '-') +
        Math.pow(10, Math.max(0, zerosToFill)).toString().substr(1) + absNumber;
}

var formattingTokens = /(\[[^\[]*\])|(\\)?([Hh]mm(ss)?|Mo|MM?M?M?|Do|DDDo|DD?D?D?|ddd?d?|do?|w[o|w]?|W[o|W]?|Qo?|YYYYYY|YYYYY|YYYY|YY|gg(ggg?)?|GG(GGG?)?|e|E|a|A|hh?|HH?|kk?|mm?|ss?|S{1,9}|x|X|zz?|ZZ?|.)/g;

var localFormattingTokens = /(\[[^\[]*\])|(\\)?(LTS|LT|LL?L?L?|l{1,4})/g;

var formatFunctions = {};

var formatTokenFunctions = {};

// token:    'M'
// padded:   ['MM', 2]
// ordinal:  'Mo'
// callback: function () { this.month() + 1 }
function addFormatToken (token, padded, ordinal, callback) {
    var func = callback;
    if (typeof callback === 'string') {
        func = function () {
            return this[callback]();
        };
    }
    if (token) {
        formatTokenFunctions[token] = func;
    }
    if (padded) {
        formatTokenFunctions[padded[0]] = function () {
            return zeroFill(func.apply(this, arguments), padded[1], padded[2]);
        };
    }
    if (ordinal) {
        formatTokenFunctions[ordinal] = function () {
            return this.localeData().ordinal(func.apply(this, arguments), token);
        };
    }
}

function removeFormattingTokens(input) {
    if (input.match(/\[[\s\S]/)) {
        return input.replace(/^\[|\]$/g, '');
    }
    return input.replace(/\\/g, '');
}

function makeFormatFunction(format) {
    var array = format.match(formattingTokens), i, length;

    for (i = 0, length = array.length; i < length; i++) {
        if (formatTokenFunctions[array[i]]) {
            array[i] = formatTokenFunctions[array[i]];
        } else {
            array[i] = removeFormattingTokens(array[i]);
        }
    }

    return function (mom) {
        var output = '', i;
        for (i = 0; i < length; i++) {
            output += isFunction(array[i]) ? array[i].call(mom, format) : array[i];
        }
        return output;
    };
}

// format date using native date object
function formatMoment(m, format) {
    if (!m.isValid()) {
        return m.localeData().invalidDate();
    }

    format = expandFormat(format, m.localeData());
    formatFunctions[format] = formatFunctions[format] || makeFormatFunction(format);

    return formatFunctions[format](m);
}

function expandFormat(format, locale) {
    var i = 5;

    function replaceLongDateFormatTokens(input) {
        return locale.longDateFormat(input) || input;
    }

    localFormattingTokens.lastIndex = 0;
    while (i >= 0 && localFormattingTokens.test(format)) {
        format = format.replace(localFormattingTokens, replaceLongDateFormatTokens);
        localFormattingTokens.lastIndex = 0;
        i -= 1;
    }

    return format;
}

var match1         = /\d/;            //       0 - 9
var match2         = /\d\d/;          //      00 - 99
var match3         = /\d{3}/;         //     000 - 999
var match4         = /\d{4}/;         //    0000 - 9999
var match6         = /[+-]?\d{6}/;    // -999999 - 999999
var match1to2      = /\d\d?/;         //       0 - 99
var match3to4      = /\d\d\d\d?/;     //     999 - 9999
var match5to6      = /\d\d\d\d\d\d?/; //   99999 - 999999
var match1to3      = /\d{1,3}/;       //       0 - 999
var match1to4      = /\d{1,4}/;       //       0 - 9999
var match1to6      = /[+-]?\d{1,6}/;  // -999999 - 999999

var matchUnsigned  = /\d+/;           //       0 - inf
var matchSigned    = /[+-]?\d+/;      //    -inf - inf

var matchOffset    = /Z|[+-]\d\d:?\d\d/gi; // +00:00 -00:00 +0000 -0000 or Z
var matchShortOffset = /Z|[+-]\d\d(?::?\d\d)?/gi; // +00 -00 +00:00 -00:00 +0000 -0000 or Z

var matchTimestamp = /[+-]?\d+(\.\d{1,3})?/; // 123456789 123456789.123

// any word (or two) characters or numbers including two/three word month in arabic.
// includes scottish gaelic two word and hyphenated months
var matchWord = /[0-9]*['a-z\u00A0-\u05FF\u0700-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]+|[\u0600-\u06FF\/]+(\s*?[\u0600-\u06FF]+){1,2}/i;


var regexes = {};

function addRegexToken (token, regex, strictRegex) {
    regexes[token] = isFunction(regex) ? regex : function (isStrict, localeData) {
        return (isStrict && strictRegex) ? strictRegex : regex;
    };
}

function getParseRegexForToken (token, config) {
    if (!hasOwnProp(regexes, token)) {
        return new RegExp(unescapeFormat(token));
    }

    return regexes[token](config._strict, config._locale);
}

// Code from http://stackoverflow.com/questions/3561493/is-there-a-regexp-escape-function-in-javascript
function unescapeFormat(s) {
    return regexEscape(s.replace('\\', '').replace(/\\(\[)|\\(\])|\[([^\]\[]*)\]|\\(.)/g, function (matched, p1, p2, p3, p4) {
        return p1 || p2 || p3 || p4;
    }));
}

function regexEscape(s) {
    return s.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
}

var tokens = {};

function addParseToken (token, callback) {
    var i, func = callback;
    if (typeof token === 'string') {
        token = [token];
    }
    if (isNumber(callback)) {
        func = function (input, array) {
            array[callback] = toInt(input);
        };
    }
    for (i = 0; i < token.length; i++) {
        tokens[token[i]] = func;
    }
}

function addWeekParseToken (token, callback) {
    addParseToken(token, function (input, array, config, token) {
        config._w = config._w || {};
        callback(input, config._w, config, token);
    });
}

function addTimeToArrayFromToken(token, input, config) {
    if (input != null && hasOwnProp(tokens, token)) {
        tokens[token](input, config._a, config, token);
    }
}

var YEAR = 0;
var MONTH = 1;
var DATE = 2;
var HOUR = 3;
var MINUTE = 4;
var SECOND = 5;
var MILLISECOND = 6;
var WEEK = 7;
var WEEKDAY = 8;

var indexOf;

if (Array.prototype.indexOf) {
    indexOf = Array.prototype.indexOf;
} else {
    indexOf = function (o) {
        // I know
        var i;
        for (i = 0; i < this.length; ++i) {
            if (this[i] === o) {
                return i;
            }
        }
        return -1;
    };
}

var indexOf$1 = indexOf;

function daysInMonth(year, month) {
    return new Date(Date.UTC(year, month + 1, 0)).getUTCDate();
}

// FORMATTING

addFormatToken('M', ['MM', 2], 'Mo', function () {
    return this.month() + 1;
});

addFormatToken('MMM', 0, 0, function (format) {
    return this.localeData().monthsShort(this, format);
});

addFormatToken('MMMM', 0, 0, function (format) {
    return this.localeData().months(this, format);
});

// ALIASES

addUnitAlias('month', 'M');

// PRIORITY

addUnitPriority('month', 8);

// PARSING

addRegexToken('M',    match1to2);
addRegexToken('MM',   match1to2, match2);
addRegexToken('MMM',  function (isStrict, locale) {
    return locale.monthsShortRegex(isStrict);
});
addRegexToken('MMMM', function (isStrict, locale) {
    return locale.monthsRegex(isStrict);
});

addParseToken(['M', 'MM'], function (input, array) {
    array[MONTH] = toInt(input) - 1;
});

addParseToken(['MMM', 'MMMM'], function (input, array, config, token) {
    var month = config._locale.monthsParse(input, token, config._strict);
    // if we didn't find a month name, mark the date as invalid.
    if (month != null) {
        array[MONTH] = month;
    } else {
        getParsingFlags(config).invalidMonth = input;
    }
});

// LOCALES

var MONTHS_IN_FORMAT = /D[oD]?(\[[^\[\]]*\]|\s)+MMMM?/;
var defaultLocaleMonths = 'January_February_March_April_May_June_July_August_September_October_November_December'.split('_');
function localeMonths (m, format) {
    if (!m) {
        return isArray(this._months) ? this._months :
            this._months['standalone'];
    }
    return isArray(this._months) ? this._months[m.month()] :
        this._months[(this._months.isFormat || MONTHS_IN_FORMAT).test(format) ? 'format' : 'standalone'][m.month()];
}

var defaultLocaleMonthsShort = 'Jan_Feb_Mar_Apr_May_Jun_Jul_Aug_Sep_Oct_Nov_Dec'.split('_');
function localeMonthsShort (m, format) {
    if (!m) {
        return isArray(this._monthsShort) ? this._monthsShort :
            this._monthsShort['standalone'];
    }
    return isArray(this._monthsShort) ? this._monthsShort[m.month()] :
        this._monthsShort[MONTHS_IN_FORMAT.test(format) ? 'format' : 'standalone'][m.month()];
}

function handleStrictParse(monthName, format, strict) {
    var i, ii, mom, llc = monthName.toLocaleLowerCase();
    if (!this._monthsParse) {
        // this is not used
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
        for (i = 0; i < 12; ++i) {
            mom = createUTC([2000, i]);
            this._shortMonthsParse[i] = this.monthsShort(mom, '').toLocaleLowerCase();
            this._longMonthsParse[i] = this.months(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'MMM') {
            ii = indexOf$1.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'MMM') {
            ii = indexOf$1.call(this._shortMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._longMonthsParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._longMonthsParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._shortMonthsParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeMonthsParse (monthName, format, strict) {
    var i, mom, regex;

    if (this._monthsParseExact) {
        return handleStrictParse.call(this, monthName, format, strict);
    }

    if (!this._monthsParse) {
        this._monthsParse = [];
        this._longMonthsParse = [];
        this._shortMonthsParse = [];
    }

    // TODO: add sorting
    // Sorting makes sure if one month (or abbr) is a prefix of another
    // see sorting in computeMonthsParse
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        if (strict && !this._longMonthsParse[i]) {
            this._longMonthsParse[i] = new RegExp('^' + this.months(mom, '').replace('.', '') + '$', 'i');
            this._shortMonthsParse[i] = new RegExp('^' + this.monthsShort(mom, '').replace('.', '') + '$', 'i');
        }
        if (!strict && !this._monthsParse[i]) {
            regex = '^' + this.months(mom, '') + '|^' + this.monthsShort(mom, '');
            this._monthsParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'MMMM' && this._longMonthsParse[i].test(monthName)) {
            return i;
        } else if (strict && format === 'MMM' && this._shortMonthsParse[i].test(monthName)) {
            return i;
        } else if (!strict && this._monthsParse[i].test(monthName)) {
            return i;
        }
    }
}

// MOMENTS

function setMonth (mom, value) {
    var dayOfMonth;

    if (!mom.isValid()) {
        // No op
        return mom;
    }

    if (typeof value === 'string') {
        if (/^\d+$/.test(value)) {
            value = toInt(value);
        } else {
            value = mom.localeData().monthsParse(value);
            // TODO: Another silent failure?
            if (!isNumber(value)) {
                return mom;
            }
        }
    }

    dayOfMonth = Math.min(mom.date(), daysInMonth(mom.year(), value));
    mom._d['set' + (mom._isUTC ? 'UTC' : '') + 'Month'](value, dayOfMonth);
    return mom;
}

function getSetMonth (value) {
    if (value != null) {
        setMonth(this, value);
        hooks.updateOffset(this, true);
        return this;
    } else {
        return get(this, 'Month');
    }
}

function getDaysInMonth () {
    return daysInMonth(this.year(), this.month());
}

var defaultMonthsShortRegex = matchWord;
function monthsShortRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsShortStrictRegex;
        } else {
            return this._monthsShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsShortRegex')) {
            this._monthsShortRegex = defaultMonthsShortRegex;
        }
        return this._monthsShortStrictRegex && isStrict ?
            this._monthsShortStrictRegex : this._monthsShortRegex;
    }
}

var defaultMonthsRegex = matchWord;
function monthsRegex (isStrict) {
    if (this._monthsParseExact) {
        if (!hasOwnProp(this, '_monthsRegex')) {
            computeMonthsParse.call(this);
        }
        if (isStrict) {
            return this._monthsStrictRegex;
        } else {
            return this._monthsRegex;
        }
    } else {
        if (!hasOwnProp(this, '_monthsRegex')) {
            this._monthsRegex = defaultMonthsRegex;
        }
        return this._monthsStrictRegex && isStrict ?
            this._monthsStrictRegex : this._monthsRegex;
    }
}

function computeMonthsParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom;
    for (i = 0; i < 12; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, i]);
        shortPieces.push(this.monthsShort(mom, ''));
        longPieces.push(this.months(mom, ''));
        mixedPieces.push(this.months(mom, ''));
        mixedPieces.push(this.monthsShort(mom, ''));
    }
    // Sorting makes sure if one month (or abbr) is a prefix of another it
    // will match the longer piece.
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 12; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
    }
    for (i = 0; i < 24; i++) {
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._monthsRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._monthsShortRegex = this._monthsRegex;
    this._monthsStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._monthsShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
}

// FORMATTING

addFormatToken('Y', 0, 0, function () {
    var y = this.year();
    return y <= 9999 ? '' + y : '+' + y;
});

addFormatToken(0, ['YY', 2], 0, function () {
    return this.year() % 100;
});

addFormatToken(0, ['YYYY',   4],       0, 'year');
addFormatToken(0, ['YYYYY',  5],       0, 'year');
addFormatToken(0, ['YYYYYY', 6, true], 0, 'year');

// ALIASES

addUnitAlias('year', 'y');

// PRIORITIES

addUnitPriority('year', 1);

// PARSING

addRegexToken('Y',      matchSigned);
addRegexToken('YY',     match1to2, match2);
addRegexToken('YYYY',   match1to4, match4);
addRegexToken('YYYYY',  match1to6, match6);
addRegexToken('YYYYYY', match1to6, match6);

addParseToken(['YYYYY', 'YYYYYY'], YEAR);
addParseToken('YYYY', function (input, array) {
    array[YEAR] = input.length === 2 ? hooks.parseTwoDigitYear(input) : toInt(input);
});
addParseToken('YY', function (input, array) {
    array[YEAR] = hooks.parseTwoDigitYear(input);
});
addParseToken('Y', function (input, array) {
    array[YEAR] = parseInt(input, 10);
});

// HELPERS

function daysInYear(year) {
    return isLeapYear(year) ? 366 : 365;
}

function isLeapYear(year) {
    return (year % 4 === 0 && year % 100 !== 0) || year % 400 === 0;
}

// HOOKS

hooks.parseTwoDigitYear = function (input) {
    return toInt(input) + (toInt(input) > 68 ? 1900 : 2000);
};

// MOMENTS

var getSetYear = makeGetSet('FullYear', true);

function getIsLeapYear () {
    return isLeapYear(this.year());
}

function createDate (y, m, d, h, M, s, ms) {
    // can't just apply() to create a date:
    // https://stackoverflow.com/q/181348
    var date = new Date(y, m, d, h, M, s, ms);

    // the date constructor remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getFullYear())) {
        date.setFullYear(y);
    }
    return date;
}

function createUTCDate (y) {
    var date = new Date(Date.UTC.apply(null, arguments));

    // the Date.UTC function remaps years 0-99 to 1900-1999
    if (y < 100 && y >= 0 && isFinite(date.getUTCFullYear())) {
        date.setUTCFullYear(y);
    }
    return date;
}

// start-of-first-week - start-of-year
function firstWeekOffset(year, dow, doy) {
    var // first-week day -- which january is always in the first week (4 for iso, 1 for other)
        fwd = 7 + dow - doy,
        // first-week day local weekday -- which local weekday is fwd
        fwdlw = (7 + createUTCDate(year, 0, fwd).getUTCDay() - dow) % 7;

    return -fwdlw + fwd - 1;
}

// https://en.wikipedia.org/wiki/ISO_week_date#Calculating_a_date_given_the_year.2C_week_number_and_weekday
function dayOfYearFromWeeks(year, week, weekday, dow, doy) {
    var localWeekday = (7 + weekday - dow) % 7,
        weekOffset = firstWeekOffset(year, dow, doy),
        dayOfYear = 1 + 7 * (week - 1) + localWeekday + weekOffset,
        resYear, resDayOfYear;

    if (dayOfYear <= 0) {
        resYear = year - 1;
        resDayOfYear = daysInYear(resYear) + dayOfYear;
    } else if (dayOfYear > daysInYear(year)) {
        resYear = year + 1;
        resDayOfYear = dayOfYear - daysInYear(year);
    } else {
        resYear = year;
        resDayOfYear = dayOfYear;
    }

    return {
        year: resYear,
        dayOfYear: resDayOfYear
    };
}

function weekOfYear(mom, dow, doy) {
    var weekOffset = firstWeekOffset(mom.year(), dow, doy),
        week = Math.floor((mom.dayOfYear() - weekOffset - 1) / 7) + 1,
        resWeek, resYear;

    if (week < 1) {
        resYear = mom.year() - 1;
        resWeek = week + weeksInYear(resYear, dow, doy);
    } else if (week > weeksInYear(mom.year(), dow, doy)) {
        resWeek = week - weeksInYear(mom.year(), dow, doy);
        resYear = mom.year() + 1;
    } else {
        resYear = mom.year();
        resWeek = week;
    }

    return {
        week: resWeek,
        year: resYear
    };
}

function weeksInYear(year, dow, doy) {
    var weekOffset = firstWeekOffset(year, dow, doy),
        weekOffsetNext = firstWeekOffset(year + 1, dow, doy);
    return (daysInYear(year) - weekOffset + weekOffsetNext) / 7;
}

// FORMATTING

addFormatToken('w', ['ww', 2], 'wo', 'week');
addFormatToken('W', ['WW', 2], 'Wo', 'isoWeek');

// ALIASES

addUnitAlias('week', 'w');
addUnitAlias('isoWeek', 'W');

// PRIORITIES

addUnitPriority('week', 5);
addUnitPriority('isoWeek', 5);

// PARSING

addRegexToken('w',  match1to2);
addRegexToken('ww', match1to2, match2);
addRegexToken('W',  match1to2);
addRegexToken('WW', match1to2, match2);

addWeekParseToken(['w', 'ww', 'W', 'WW'], function (input, week, config, token) {
    week[token.substr(0, 1)] = toInt(input);
});

// HELPERS

// LOCALES

function localeWeek (mom) {
    return weekOfYear(mom, this._week.dow, this._week.doy).week;
}

var defaultLocaleWeek = {
    dow : 0, // Sunday is the first day of the week.
    doy : 6  // The week that contains Jan 1st is the first week of the year.
};

function localeFirstDayOfWeek () {
    return this._week.dow;
}

function localeFirstDayOfYear () {
    return this._week.doy;
}

// MOMENTS

function getSetWeek (input) {
    var week = this.localeData().week(this);
    return input == null ? week : this.add((input - week) * 7, 'd');
}

function getSetISOWeek (input) {
    var week = weekOfYear(this, 1, 4).week;
    return input == null ? week : this.add((input - week) * 7, 'd');
}

// FORMATTING

addFormatToken('d', 0, 'do', 'day');

addFormatToken('dd', 0, 0, function (format) {
    return this.localeData().weekdaysMin(this, format);
});

addFormatToken('ddd', 0, 0, function (format) {
    return this.localeData().weekdaysShort(this, format);
});

addFormatToken('dddd', 0, 0, function (format) {
    return this.localeData().weekdays(this, format);
});

addFormatToken('e', 0, 0, 'weekday');
addFormatToken('E', 0, 0, 'isoWeekday');

// ALIASES

addUnitAlias('day', 'd');
addUnitAlias('weekday', 'e');
addUnitAlias('isoWeekday', 'E');

// PRIORITY
addUnitPriority('day', 11);
addUnitPriority('weekday', 11);
addUnitPriority('isoWeekday', 11);

// PARSING

addRegexToken('d',    match1to2);
addRegexToken('e',    match1to2);
addRegexToken('E',    match1to2);
addRegexToken('dd',   function (isStrict, locale) {
    return locale.weekdaysMinRegex(isStrict);
});
addRegexToken('ddd',   function (isStrict, locale) {
    return locale.weekdaysShortRegex(isStrict);
});
addRegexToken('dddd',   function (isStrict, locale) {
    return locale.weekdaysRegex(isStrict);
});

addWeekParseToken(['dd', 'ddd', 'dddd'], function (input, week, config, token) {
    var weekday = config._locale.weekdaysParse(input, token, config._strict);
    // if we didn't get a weekday name, mark the date as invalid
    if (weekday != null) {
        week.d = weekday;
    } else {
        getParsingFlags(config).invalidWeekday = input;
    }
});

addWeekParseToken(['d', 'e', 'E'], function (input, week, config, token) {
    week[token] = toInt(input);
});

// HELPERS

function parseWeekday(input, locale) {
    if (typeof input !== 'string') {
        return input;
    }

    if (!isNaN(input)) {
        return parseInt(input, 10);
    }

    input = locale.weekdaysParse(input);
    if (typeof input === 'number') {
        return input;
    }

    return null;
}

function parseIsoWeekday(input, locale) {
    if (typeof input === 'string') {
        return locale.weekdaysParse(input) % 7 || 7;
    }
    return isNaN(input) ? null : input;
}

// LOCALES

var defaultLocaleWeekdays = 'Sunday_Monday_Tuesday_Wednesday_Thursday_Friday_Saturday'.split('_');
function localeWeekdays (m, format) {
    if (!m) {
        return isArray(this._weekdays) ? this._weekdays :
            this._weekdays['standalone'];
    }
    return isArray(this._weekdays) ? this._weekdays[m.day()] :
        this._weekdays[this._weekdays.isFormat.test(format) ? 'format' : 'standalone'][m.day()];
}

var defaultLocaleWeekdaysShort = 'Sun_Mon_Tue_Wed_Thu_Fri_Sat'.split('_');
function localeWeekdaysShort (m) {
    return (m) ? this._weekdaysShort[m.day()] : this._weekdaysShort;
}

var defaultLocaleWeekdaysMin = 'Su_Mo_Tu_We_Th_Fr_Sa'.split('_');
function localeWeekdaysMin (m) {
    return (m) ? this._weekdaysMin[m.day()] : this._weekdaysMin;
}

function handleStrictParse$1(weekdayName, format, strict) {
    var i, ii, mom, llc = weekdayName.toLocaleLowerCase();
    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._minWeekdaysParse = [];

        for (i = 0; i < 7; ++i) {
            mom = createUTC([2000, 1]).day(i);
            this._minWeekdaysParse[i] = this.weekdaysMin(mom, '').toLocaleLowerCase();
            this._shortWeekdaysParse[i] = this.weekdaysShort(mom, '').toLocaleLowerCase();
            this._weekdaysParse[i] = this.weekdays(mom, '').toLocaleLowerCase();
        }
    }

    if (strict) {
        if (format === 'dddd') {
            ii = indexOf$1.call(this._weekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    } else {
        if (format === 'dddd') {
            ii = indexOf$1.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else if (format === 'ddd') {
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        } else {
            ii = indexOf$1.call(this._minWeekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._weekdaysParse, llc);
            if (ii !== -1) {
                return ii;
            }
            ii = indexOf$1.call(this._shortWeekdaysParse, llc);
            return ii !== -1 ? ii : null;
        }
    }
}

function localeWeekdaysParse (weekdayName, format, strict) {
    var i, mom, regex;

    if (this._weekdaysParseExact) {
        return handleStrictParse$1.call(this, weekdayName, format, strict);
    }

    if (!this._weekdaysParse) {
        this._weekdaysParse = [];
        this._minWeekdaysParse = [];
        this._shortWeekdaysParse = [];
        this._fullWeekdaysParse = [];
    }

    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already

        mom = createUTC([2000, 1]).day(i);
        if (strict && !this._fullWeekdaysParse[i]) {
            this._fullWeekdaysParse[i] = new RegExp('^' + this.weekdays(mom, '').replace('.', '\.?') + '$', 'i');
            this._shortWeekdaysParse[i] = new RegExp('^' + this.weekdaysShort(mom, '').replace('.', '\.?') + '$', 'i');
            this._minWeekdaysParse[i] = new RegExp('^' + this.weekdaysMin(mom, '').replace('.', '\.?') + '$', 'i');
        }
        if (!this._weekdaysParse[i]) {
            regex = '^' + this.weekdays(mom, '') + '|^' + this.weekdaysShort(mom, '') + '|^' + this.weekdaysMin(mom, '');
            this._weekdaysParse[i] = new RegExp(regex.replace('.', ''), 'i');
        }
        // test the regex
        if (strict && format === 'dddd' && this._fullWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'ddd' && this._shortWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (strict && format === 'dd' && this._minWeekdaysParse[i].test(weekdayName)) {
            return i;
        } else if (!strict && this._weekdaysParse[i].test(weekdayName)) {
            return i;
        }
    }
}

// MOMENTS

function getSetDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var day = this._isUTC ? this._d.getUTCDay() : this._d.getDay();
    if (input != null) {
        input = parseWeekday(input, this.localeData());
        return this.add(input - day, 'd');
    } else {
        return day;
    }
}

function getSetLocaleDayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    var weekday = (this.day() + 7 - this.localeData()._week.dow) % 7;
    return input == null ? weekday : this.add(input - weekday, 'd');
}

function getSetISODayOfWeek (input) {
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }

    // behaves the same as moment#day except
    // as a getter, returns 7 instead of 0 (1-7 range instead of 0-6)
    // as a setter, sunday should belong to the previous week.

    if (input != null) {
        var weekday = parseIsoWeekday(input, this.localeData());
        return this.day(this.day() % 7 ? weekday : weekday - 7);
    } else {
        return this.day() || 7;
    }
}

var defaultWeekdaysRegex = matchWord;
function weekdaysRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysStrictRegex;
        } else {
            return this._weekdaysRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            this._weekdaysRegex = defaultWeekdaysRegex;
        }
        return this._weekdaysStrictRegex && isStrict ?
            this._weekdaysStrictRegex : this._weekdaysRegex;
    }
}

var defaultWeekdaysShortRegex = matchWord;
function weekdaysShortRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysShortStrictRegex;
        } else {
            return this._weekdaysShortRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysShortRegex')) {
            this._weekdaysShortRegex = defaultWeekdaysShortRegex;
        }
        return this._weekdaysShortStrictRegex && isStrict ?
            this._weekdaysShortStrictRegex : this._weekdaysShortRegex;
    }
}

var defaultWeekdaysMinRegex = matchWord;
function weekdaysMinRegex (isStrict) {
    if (this._weekdaysParseExact) {
        if (!hasOwnProp(this, '_weekdaysRegex')) {
            computeWeekdaysParse.call(this);
        }
        if (isStrict) {
            return this._weekdaysMinStrictRegex;
        } else {
            return this._weekdaysMinRegex;
        }
    } else {
        if (!hasOwnProp(this, '_weekdaysMinRegex')) {
            this._weekdaysMinRegex = defaultWeekdaysMinRegex;
        }
        return this._weekdaysMinStrictRegex && isStrict ?
            this._weekdaysMinStrictRegex : this._weekdaysMinRegex;
    }
}


function computeWeekdaysParse () {
    function cmpLenRev(a, b) {
        return b.length - a.length;
    }

    var minPieces = [], shortPieces = [], longPieces = [], mixedPieces = [],
        i, mom, minp, shortp, longp;
    for (i = 0; i < 7; i++) {
        // make the regex if we don't have it already
        mom = createUTC([2000, 1]).day(i);
        minp = this.weekdaysMin(mom, '');
        shortp = this.weekdaysShort(mom, '');
        longp = this.weekdays(mom, '');
        minPieces.push(minp);
        shortPieces.push(shortp);
        longPieces.push(longp);
        mixedPieces.push(minp);
        mixedPieces.push(shortp);
        mixedPieces.push(longp);
    }
    // Sorting makes sure if one weekday (or abbr) is a prefix of another it
    // will match the longer piece.
    minPieces.sort(cmpLenRev);
    shortPieces.sort(cmpLenRev);
    longPieces.sort(cmpLenRev);
    mixedPieces.sort(cmpLenRev);
    for (i = 0; i < 7; i++) {
        shortPieces[i] = regexEscape(shortPieces[i]);
        longPieces[i] = regexEscape(longPieces[i]);
        mixedPieces[i] = regexEscape(mixedPieces[i]);
    }

    this._weekdaysRegex = new RegExp('^(' + mixedPieces.join('|') + ')', 'i');
    this._weekdaysShortRegex = this._weekdaysRegex;
    this._weekdaysMinRegex = this._weekdaysRegex;

    this._weekdaysStrictRegex = new RegExp('^(' + longPieces.join('|') + ')', 'i');
    this._weekdaysShortStrictRegex = new RegExp('^(' + shortPieces.join('|') + ')', 'i');
    this._weekdaysMinStrictRegex = new RegExp('^(' + minPieces.join('|') + ')', 'i');
}

// FORMATTING

function hFormat() {
    return this.hours() % 12 || 12;
}

function kFormat() {
    return this.hours() || 24;
}

addFormatToken('H', ['HH', 2], 0, 'hour');
addFormatToken('h', ['hh', 2], 0, hFormat);
addFormatToken('k', ['kk', 2], 0, kFormat);

addFormatToken('hmm', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2);
});

addFormatToken('hmmss', 0, 0, function () {
    return '' + hFormat.apply(this) + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

addFormatToken('Hmm', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2);
});

addFormatToken('Hmmss', 0, 0, function () {
    return '' + this.hours() + zeroFill(this.minutes(), 2) +
        zeroFill(this.seconds(), 2);
});

function meridiem (token, lowercase) {
    addFormatToken(token, 0, 0, function () {
        return this.localeData().meridiem(this.hours(), this.minutes(), lowercase);
    });
}

meridiem('a', true);
meridiem('A', false);

// ALIASES

addUnitAlias('hour', 'h');

// PRIORITY
addUnitPriority('hour', 13);

// PARSING

function matchMeridiem (isStrict, locale) {
    return locale._meridiemParse;
}

addRegexToken('a',  matchMeridiem);
addRegexToken('A',  matchMeridiem);
addRegexToken('H',  match1to2);
addRegexToken('h',  match1to2);
addRegexToken('k',  match1to2);
addRegexToken('HH', match1to2, match2);
addRegexToken('hh', match1to2, match2);
addRegexToken('kk', match1to2, match2);

addRegexToken('hmm', match3to4);
addRegexToken('hmmss', match5to6);
addRegexToken('Hmm', match3to4);
addRegexToken('Hmmss', match5to6);

addParseToken(['H', 'HH'], HOUR);
addParseToken(['k', 'kk'], function (input, array, config) {
    var kInput = toInt(input);
    array[HOUR] = kInput === 24 ? 0 : kInput;
});
addParseToken(['a', 'A'], function (input, array, config) {
    config._isPm = config._locale.isPM(input);
    config._meridiem = input;
});
addParseToken(['h', 'hh'], function (input, array, config) {
    array[HOUR] = toInt(input);
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
    getParsingFlags(config).bigHour = true;
});
addParseToken('hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
    getParsingFlags(config).bigHour = true;
});
addParseToken('Hmm', function (input, array, config) {
    var pos = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos));
    array[MINUTE] = toInt(input.substr(pos));
});
addParseToken('Hmmss', function (input, array, config) {
    var pos1 = input.length - 4;
    var pos2 = input.length - 2;
    array[HOUR] = toInt(input.substr(0, pos1));
    array[MINUTE] = toInt(input.substr(pos1, 2));
    array[SECOND] = toInt(input.substr(pos2));
});

// LOCALES

function localeIsPM (input) {
    // IE8 Quirks Mode & IE7 Standards Mode do not allow accessing strings like arrays
    // Using charAt should be more compatible.
    return ((input + '').toLowerCase().charAt(0) === 'p');
}

var defaultLocaleMeridiemParse = /[ap]\.?m?\.?/i;
function localeMeridiem (hours, minutes, isLower) {
    if (hours > 11) {
        return isLower ? 'pm' : 'PM';
    } else {
        return isLower ? 'am' : 'AM';
    }
}


// MOMENTS

// Setting the hour should keep the time, because the user explicitly
// specified which hour he wants. So trying to maintain the same hour (in
// a new timezone) makes sense. Adding/subtracting hours does not follow
// this rule.
var getSetHour = makeGetSet('Hours', true);

// months
// week
// weekdays
// meridiem
var baseConfig = {
    calendar: defaultCalendar,
    longDateFormat: defaultLongDateFormat,
    invalidDate: defaultInvalidDate,
    ordinal: defaultOrdinal,
    dayOfMonthOrdinalParse: defaultDayOfMonthOrdinalParse,
    relativeTime: defaultRelativeTime,

    months: defaultLocaleMonths,
    monthsShort: defaultLocaleMonthsShort,

    week: defaultLocaleWeek,

    weekdays: defaultLocaleWeekdays,
    weekdaysMin: defaultLocaleWeekdaysMin,
    weekdaysShort: defaultLocaleWeekdaysShort,

    meridiemParse: defaultLocaleMeridiemParse
};

// internal storage for locale config files
var locales = {};
var localeFamilies = {};
var globalLocale;

function normalizeLocale(key) {
    return key ? key.toLowerCase().replace('_', '-') : key;
}

// pick the locale from the array
// try ['en-au', 'en-gb'] as 'en-au', 'en-gb', 'en', as in move through the list trying each
// substring from most specific to least, but move to the next array item if it's a more specific variant than the current root
function chooseLocale(names) {
    var i = 0, j, next, locale, split;

    while (i < names.length) {
        split = normalizeLocale(names[i]).split('-');
        j = split.length;
        next = normalizeLocale(names[i + 1]);
        next = next ? next.split('-') : null;
        while (j > 0) {
            locale = loadLocale(split.slice(0, j).join('-'));
            if (locale) {
                return locale;
            }
            if (next && next.length >= j && compareArrays(split, next, true) >= j - 1) {
                //the next array item is better than a shallower substring of this one
                break;
            }
            j--;
        }
        i++;
    }
    return null;
}

function loadLocale(name) {
    var oldLocale = null;
    // TODO: Find a better way to register and load all the locales in Node
    if (!locales[name] && (typeof module !== 'undefined') &&
            module && module.exports) {
        try {
            oldLocale = globalLocale._abbr;
            require('./locale/' + name);
            // because defineLocale currently also sets the global locale, we
            // want to undo that for lazy loaded locales
            getSetGlobalLocale(oldLocale);
        } catch (e) { }
    }
    return locales[name];
}

// This function will load locale and then set the global locale.  If
// no arguments are passed in, it will simply return the current global
// locale key.
function getSetGlobalLocale (key, values) {
    var data;
    if (key) {
        if (isUndefined(values)) {
            data = getLocale(key);
        }
        else {
            data = defineLocale(key, values);
        }

        if (data) {
            // moment.duration._locale = moment._locale = data;
            globalLocale = data;
        }
    }

    return globalLocale._abbr;
}

function defineLocale (name, config) {
    if (config !== null) {
        var parentConfig = baseConfig;
        config.abbr = name;
        if (locales[name] != null) {
            deprecateSimple('defineLocaleOverride',
                    'use moment.updateLocale(localeName, config) to change ' +
                    'an existing locale. moment.defineLocale(localeName, ' +
                    'config) should only be used for creating a new locale ' +
                    'See http://momentjs.com/guides/#/warnings/define-locale/ for more info.');
            parentConfig = locales[name]._config;
        } else if (config.parentLocale != null) {
            if (locales[config.parentLocale] != null) {
                parentConfig = locales[config.parentLocale]._config;
            } else {
                if (!localeFamilies[config.parentLocale]) {
                    localeFamilies[config.parentLocale] = [];
                }
                localeFamilies[config.parentLocale].push({
                    name: name,
                    config: config
                });
                return null;
            }
        }
        locales[name] = new Locale(mergeConfigs(parentConfig, config));

        if (localeFamilies[name]) {
            localeFamilies[name].forEach(function (x) {
                defineLocale(x.name, x.config);
            });
        }

        // backwards compat for now: also set the locale
        // make sure we set the locale AFTER all child locales have been
        // created, so we won't end up with the child locale set.
        getSetGlobalLocale(name);


        return locales[name];
    } else {
        // useful for testing
        delete locales[name];
        return null;
    }
}

function updateLocale(name, config) {
    if (config != null) {
        var locale, parentConfig = baseConfig;
        // MERGE
        if (locales[name] != null) {
            parentConfig = locales[name]._config;
        }
        config = mergeConfigs(parentConfig, config);
        locale = new Locale(config);
        locale.parentLocale = locales[name];
        locales[name] = locale;

        // backwards compat for now: also set the locale
        getSetGlobalLocale(name);
    } else {
        // pass null for config to unupdate, useful for tests
        if (locales[name] != null) {
            if (locales[name].parentLocale != null) {
                locales[name] = locales[name].parentLocale;
            } else if (locales[name] != null) {
                delete locales[name];
            }
        }
    }
    return locales[name];
}

// returns locale data
function getLocale (key) {
    var locale;

    if (key && key._locale && key._locale._abbr) {
        key = key._locale._abbr;
    }

    if (!key) {
        return globalLocale;
    }

    if (!isArray(key)) {
        //short-circuit everything else
        locale = loadLocale(key);
        if (locale) {
            return locale;
        }
        key = [key];
    }

    return chooseLocale(key);
}

function listLocales() {
    return keys$1(locales);
}

function checkOverflow (m) {
    var overflow;
    var a = m._a;

    if (a && getParsingFlags(m).overflow === -2) {
        overflow =
            a[MONTH]       < 0 || a[MONTH]       > 11  ? MONTH :
            a[DATE]        < 1 || a[DATE]        > daysInMonth(a[YEAR], a[MONTH]) ? DATE :
            a[HOUR]        < 0 || a[HOUR]        > 24 || (a[HOUR] === 24 && (a[MINUTE] !== 0 || a[SECOND] !== 0 || a[MILLISECOND] !== 0)) ? HOUR :
            a[MINUTE]      < 0 || a[MINUTE]      > 59  ? MINUTE :
            a[SECOND]      < 0 || a[SECOND]      > 59  ? SECOND :
            a[MILLISECOND] < 0 || a[MILLISECOND] > 999 ? MILLISECOND :
            -1;

        if (getParsingFlags(m)._overflowDayOfYear && (overflow < YEAR || overflow > DATE)) {
            overflow = DATE;
        }
        if (getParsingFlags(m)._overflowWeeks && overflow === -1) {
            overflow = WEEK;
        }
        if (getParsingFlags(m)._overflowWeekday && overflow === -1) {
            overflow = WEEKDAY;
        }

        getParsingFlags(m).overflow = overflow;
    }

    return m;
}

// iso 8601 regex
// 0000-00-00 0000-W00 or 0000-W00-0 + T + 00 or 00:00 or 00:00:00 or 00:00:00.000 + +00:00 or +0000 or +00)
var extendedIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})-(?:\d\d-\d\d|W\d\d-\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?::\d\d(?::\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;
var basicIsoRegex = /^\s*((?:[+-]\d{6}|\d{4})(?:\d\d\d\d|W\d\d\d|W\d\d|\d\d\d|\d\d))(?:(T| )(\d\d(?:\d\d(?:\d\d(?:[.,]\d+)?)?)?)([\+\-]\d\d(?::?\d\d)?|\s*Z)?)?$/;

var tzRegex = /Z|[+-]\d\d(?::?\d\d)?/;

var isoDates = [
    ['YYYYYY-MM-DD', /[+-]\d{6}-\d\d-\d\d/],
    ['YYYY-MM-DD', /\d{4}-\d\d-\d\d/],
    ['GGGG-[W]WW-E', /\d{4}-W\d\d-\d/],
    ['GGGG-[W]WW', /\d{4}-W\d\d/, false],
    ['YYYY-DDD', /\d{4}-\d{3}/],
    ['YYYY-MM', /\d{4}-\d\d/, false],
    ['YYYYYYMMDD', /[+-]\d{10}/],
    ['YYYYMMDD', /\d{8}/],
    // YYYYMM is NOT allowed by the standard
    ['GGGG[W]WWE', /\d{4}W\d{3}/],
    ['GGGG[W]WW', /\d{4}W\d{2}/, false],
    ['YYYYDDD', /\d{7}/]
];

// iso time formats and regexes
var isoTimes = [
    ['HH:mm:ss.SSSS', /\d\d:\d\d:\d\d\.\d+/],
    ['HH:mm:ss,SSSS', /\d\d:\d\d:\d\d,\d+/],
    ['HH:mm:ss', /\d\d:\d\d:\d\d/],
    ['HH:mm', /\d\d:\d\d/],
    ['HHmmss.SSSS', /\d\d\d\d\d\d\.\d+/],
    ['HHmmss,SSSS', /\d\d\d\d\d\d,\d+/],
    ['HHmmss', /\d\d\d\d\d\d/],
    ['HHmm', /\d\d\d\d/],
    ['HH', /\d\d/]
];

var aspNetJsonRegex = /^\/?Date\((\-?\d+)/i;

// date from iso format
function configFromISO(config) {
    var i, l,
        string = config._i,
        match = extendedIsoRegex.exec(string) || basicIsoRegex.exec(string),
        allowTime, dateFormat, timeFormat, tzFormat;

    if (match) {
        getParsingFlags(config).iso = true;

        for (i = 0, l = isoDates.length; i < l; i++) {
            if (isoDates[i][1].exec(match[1])) {
                dateFormat = isoDates[i][0];
                allowTime = isoDates[i][2] !== false;
                break;
            }
        }
        if (dateFormat == null) {
            config._isValid = false;
            return;
        }
        if (match[3]) {
            for (i = 0, l = isoTimes.length; i < l; i++) {
                if (isoTimes[i][1].exec(match[3])) {
                    // match[2] should be 'T' or space
                    timeFormat = (match[2] || ' ') + isoTimes[i][0];
                    break;
                }
            }
            if (timeFormat == null) {
                config._isValid = false;
                return;
            }
        }
        if (!allowTime && timeFormat != null) {
            config._isValid = false;
            return;
        }
        if (match[4]) {
            if (tzRegex.exec(match[4])) {
                tzFormat = 'Z';
            } else {
                config._isValid = false;
                return;
            }
        }
        config._f = dateFormat + (timeFormat || '') + (tzFormat || '');
        configFromStringAndFormat(config);
    } else {
        config._isValid = false;
    }
}

// RFC 2822 regex: For details see https://tools.ietf.org/html/rfc2822#section-3.3
var basicRfcRegex = /^((?:Mon|Tue|Wed|Thu|Fri|Sat|Sun),?\s)?(\d?\d\s(?:Jan|Feb|Mar|Apr|May|Jun|Jul|Aug|Sep|Oct|Nov|Dec)\s(?:\d\d)?\d\d\s)(\d\d:\d\d)(\:\d\d)?(\s(?:UT|GMT|[ECMP][SD]T|[A-IK-Za-ik-z]|[+-]\d{4}))$/;

// date and time from ref 2822 format
function configFromRFC2822(config) {
    var string, match, dayFormat,
        dateFormat, timeFormat, tzFormat;
    var timezones = {
        ' GMT': ' +0000',
        ' EDT': ' -0400',
        ' EST': ' -0500',
        ' CDT': ' -0500',
        ' CST': ' -0600',
        ' MDT': ' -0600',
        ' MST': ' -0700',
        ' PDT': ' -0700',
        ' PST': ' -0800'
    };
    var military = 'YXWVUTSRQPONZABCDEFGHIKLM';
    var timezone, timezoneIndex;

    string = config._i
        .replace(/\([^\)]*\)|[\n\t]/g, ' ') // Remove comments and folding whitespace
        .replace(/(\s\s+)/g, ' ') // Replace multiple-spaces with a single space
        .replace(/^\s|\s$/g, ''); // Remove leading and trailing spaces
    match = basicRfcRegex.exec(string);

    if (match) {
        dayFormat = match[1] ? 'ddd' + ((match[1].length === 5) ? ', ' : ' ') : '';
        dateFormat = 'D MMM ' + ((match[2].length > 10) ? 'YYYY ' : 'YY ');
        timeFormat = 'HH:mm' + (match[4] ? ':ss' : '');

        // TODO: Replace the vanilla JS Date object with an indepentent day-of-week check.
        if (match[1]) { // day of week given
            var momentDate = new Date(match[2]);
            var momentDay = ['Sun','Mon','Tue','Wed','Thu','Fri','Sat'][momentDate.getDay()];

            if (match[1].substr(0,3) !== momentDay) {
                getParsingFlags(config).weekdayMismatch = true;
                config._isValid = false;
                return;
            }
        }

        switch (match[5].length) {
            case 2: // military
                if (timezoneIndex === 0) {
                    timezone = ' +0000';
                } else {
                    timezoneIndex = military.indexOf(match[5][1].toUpperCase()) - 12;
                    timezone = ((timezoneIndex < 0) ? ' -' : ' +') +
                        (('' + timezoneIndex).replace(/^-?/, '0')).match(/..$/)[0] + '00';
                }
                break;
            case 4: // Zone
                timezone = timezones[match[5]];
                break;
            default: // UT or +/-9999
                timezone = timezones[' GMT'];
        }
        match[5] = timezone;
        config._i = match.splice(1).join('');
        tzFormat = ' ZZ';
        config._f = dayFormat + dateFormat + timeFormat + tzFormat;
        configFromStringAndFormat(config);
        getParsingFlags(config).rfc2822 = true;
    } else {
        config._isValid = false;
    }
}

// date from iso format or fallback
function configFromString(config) {
    var matched = aspNetJsonRegex.exec(config._i);

    if (matched !== null) {
        config._d = new Date(+matched[1]);
        return;
    }

    configFromISO(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    configFromRFC2822(config);
    if (config._isValid === false) {
        delete config._isValid;
    } else {
        return;
    }

    // Final attempt, use Input Fallback
    hooks.createFromInputFallback(config);
}

hooks.createFromInputFallback = deprecate(
    'value provided is not in a recognized RFC2822 or ISO format. moment construction falls back to js Date(), ' +
    'which is not reliable across all browsers and versions. Non RFC2822/ISO date formats are ' +
    'discouraged and will be removed in an upcoming major release. Please refer to ' +
    'http://momentjs.com/guides/#/warnings/js-date/ for more info.',
    function (config) {
        config._d = new Date(config._i + (config._useUTC ? ' UTC' : ''));
    }
);

// Pick the first defined of two or three arguments.
function defaults(a, b, c) {
    if (a != null) {
        return a;
    }
    if (b != null) {
        return b;
    }
    return c;
}

function currentDateArray(config) {
    // hooks is actually the exported moment object
    var nowValue = new Date(hooks.now());
    if (config._useUTC) {
        return [nowValue.getUTCFullYear(), nowValue.getUTCMonth(), nowValue.getUTCDate()];
    }
    return [nowValue.getFullYear(), nowValue.getMonth(), nowValue.getDate()];
}

// convert an array to a date.
// the array should mirror the parameters below
// note: all values past the year are optional and will default to the lowest possible value.
// [year, month, day , hour, minute, second, millisecond]
function configFromArray (config) {
    var i, date, input = [], currentDate, yearToUse;

    if (config._d) {
        return;
    }

    currentDate = currentDateArray(config);

    //compute day of the year from weeks and weekdays
    if (config._w && config._a[DATE] == null && config._a[MONTH] == null) {
        dayOfYearFromWeekInfo(config);
    }

    //if the day of the year is set, figure out what it is
    if (config._dayOfYear != null) {
        yearToUse = defaults(config._a[YEAR], currentDate[YEAR]);

        if (config._dayOfYear > daysInYear(yearToUse) || config._dayOfYear === 0) {
            getParsingFlags(config)._overflowDayOfYear = true;
        }

        date = createUTCDate(yearToUse, 0, config._dayOfYear);
        config._a[MONTH] = date.getUTCMonth();
        config._a[DATE] = date.getUTCDate();
    }

    // Default to current date.
    // * if no year, month, day of month are given, default to today
    // * if day of month is given, default month and year
    // * if month is given, default only year
    // * if year is given, don't default anything
    for (i = 0; i < 3 && config._a[i] == null; ++i) {
        config._a[i] = input[i] = currentDate[i];
    }

    // Zero out whatever was not defaulted, including time
    for (; i < 7; i++) {
        config._a[i] = input[i] = (config._a[i] == null) ? (i === 2 ? 1 : 0) : config._a[i];
    }

    // Check for 24:00:00.000
    if (config._a[HOUR] === 24 &&
            config._a[MINUTE] === 0 &&
            config._a[SECOND] === 0 &&
            config._a[MILLISECOND] === 0) {
        config._nextDay = true;
        config._a[HOUR] = 0;
    }

    config._d = (config._useUTC ? createUTCDate : createDate).apply(null, input);
    // Apply timezone offset from input. The actual utcOffset can be changed
    // with parseZone.
    if (config._tzm != null) {
        config._d.setUTCMinutes(config._d.getUTCMinutes() - config._tzm);
    }

    if (config._nextDay) {
        config._a[HOUR] = 24;
    }
}

function dayOfYearFromWeekInfo(config) {
    var w, weekYear, week, weekday, dow, doy, temp, weekdayOverflow;

    w = config._w;
    if (w.GG != null || w.W != null || w.E != null) {
        dow = 1;
        doy = 4;

        // TODO: We need to take the current isoWeekYear, but that depends on
        // how we interpret now (local, utc, fixed offset). So create
        // a now version of current config (take local/utc/offset flags, and
        // create now).
        weekYear = defaults(w.GG, config._a[YEAR], weekOfYear(createLocal(), 1, 4).year);
        week = defaults(w.W, 1);
        weekday = defaults(w.E, 1);
        if (weekday < 1 || weekday > 7) {
            weekdayOverflow = true;
        }
    } else {
        dow = config._locale._week.dow;
        doy = config._locale._week.doy;

        var curWeek = weekOfYear(createLocal(), dow, doy);

        weekYear = defaults(w.gg, config._a[YEAR], curWeek.year);

        // Default to current week.
        week = defaults(w.w, curWeek.week);

        if (w.d != null) {
            // weekday -- low day numbers are considered next week
            weekday = w.d;
            if (weekday < 0 || weekday > 6) {
                weekdayOverflow = true;
            }
        } else if (w.e != null) {
            // local weekday -- counting starts from begining of week
            weekday = w.e + dow;
            if (w.e < 0 || w.e > 6) {
                weekdayOverflow = true;
            }
        } else {
            // default to begining of week
            weekday = dow;
        }
    }
    if (week < 1 || week > weeksInYear(weekYear, dow, doy)) {
        getParsingFlags(config)._overflowWeeks = true;
    } else if (weekdayOverflow != null) {
        getParsingFlags(config)._overflowWeekday = true;
    } else {
        temp = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy);
        config._a[YEAR] = temp.year;
        config._dayOfYear = temp.dayOfYear;
    }
}

// constant that refers to the ISO standard
hooks.ISO_8601 = function () {};

// constant that refers to the RFC 2822 form
hooks.RFC_2822 = function () {};

// date from string and format string
function configFromStringAndFormat(config) {
    // TODO: Move this to another part of the creation flow to prevent circular deps
    if (config._f === hooks.ISO_8601) {
        configFromISO(config);
        return;
    }
    if (config._f === hooks.RFC_2822) {
        configFromRFC2822(config);
        return;
    }
    config._a = [];
    getParsingFlags(config).empty = true;

    // This array is used to make a Date, either with `new Date` or `Date.UTC`
    var string = '' + config._i,
        i, parsedInput, tokens, token, skipped,
        stringLength = string.length,
        totalParsedInputLength = 0;

    tokens = expandFormat(config._f, config._locale).match(formattingTokens) || [];

    for (i = 0; i < tokens.length; i++) {
        token = tokens[i];
        parsedInput = (string.match(getParseRegexForToken(token, config)) || [])[0];
        // console.log('token', token, 'parsedInput', parsedInput,
        //         'regex', getParseRegexForToken(token, config));
        if (parsedInput) {
            skipped = string.substr(0, string.indexOf(parsedInput));
            if (skipped.length > 0) {
                getParsingFlags(config).unusedInput.push(skipped);
            }
            string = string.slice(string.indexOf(parsedInput) + parsedInput.length);
            totalParsedInputLength += parsedInput.length;
        }
        // don't parse if it's not a known token
        if (formatTokenFunctions[token]) {
            if (parsedInput) {
                getParsingFlags(config).empty = false;
            }
            else {
                getParsingFlags(config).unusedTokens.push(token);
            }
            addTimeToArrayFromToken(token, parsedInput, config);
        }
        else if (config._strict && !parsedInput) {
            getParsingFlags(config).unusedTokens.push(token);
        }
    }

    // add remaining unparsed input length to the string
    getParsingFlags(config).charsLeftOver = stringLength - totalParsedInputLength;
    if (string.length > 0) {
        getParsingFlags(config).unusedInput.push(string);
    }

    // clear _12h flag if hour is <= 12
    if (config._a[HOUR] <= 12 &&
        getParsingFlags(config).bigHour === true &&
        config._a[HOUR] > 0) {
        getParsingFlags(config).bigHour = undefined;
    }

    getParsingFlags(config).parsedDateParts = config._a.slice(0);
    getParsingFlags(config).meridiem = config._meridiem;
    // handle meridiem
    config._a[HOUR] = meridiemFixWrap(config._locale, config._a[HOUR], config._meridiem);

    configFromArray(config);
    checkOverflow(config);
}


function meridiemFixWrap (locale, hour, meridiem) {
    var isPm;

    if (meridiem == null) {
        // nothing to do
        return hour;
    }
    if (locale.meridiemHour != null) {
        return locale.meridiemHour(hour, meridiem);
    } else if (locale.isPM != null) {
        // Fallback
        isPm = locale.isPM(meridiem);
        if (isPm && hour < 12) {
            hour += 12;
        }
        if (!isPm && hour === 12) {
            hour = 0;
        }
        return hour;
    } else {
        // this is not supposed to happen
        return hour;
    }
}

// date from string and array of format strings
function configFromStringAndArray(config) {
    var tempConfig,
        bestMoment,

        scoreToBeat,
        i,
        currentScore;

    if (config._f.length === 0) {
        getParsingFlags(config).invalidFormat = true;
        config._d = new Date(NaN);
        return;
    }

    for (i = 0; i < config._f.length; i++) {
        currentScore = 0;
        tempConfig = copyConfig({}, config);
        if (config._useUTC != null) {
            tempConfig._useUTC = config._useUTC;
        }
        tempConfig._f = config._f[i];
        configFromStringAndFormat(tempConfig);

        if (!isValid(tempConfig)) {
            continue;
        }

        // if there is any input that was not parsed add a penalty for that format
        currentScore += getParsingFlags(tempConfig).charsLeftOver;

        //or tokens
        currentScore += getParsingFlags(tempConfig).unusedTokens.length * 10;

        getParsingFlags(tempConfig).score = currentScore;

        if (scoreToBeat == null || currentScore < scoreToBeat) {
            scoreToBeat = currentScore;
            bestMoment = tempConfig;
        }
    }

    extend(config, bestMoment || tempConfig);
}

function configFromObject(config) {
    if (config._d) {
        return;
    }

    var i = normalizeObjectUnits(config._i);
    config._a = map([i.year, i.month, i.day || i.date, i.hour, i.minute, i.second, i.millisecond], function (obj) {
        return obj && parseInt(obj, 10);
    });

    configFromArray(config);
}

function createFromConfig (config) {
    var res = new Moment(checkOverflow(prepareConfig(config)));
    if (res._nextDay) {
        // Adding is smart enough around DST
        res.add(1, 'd');
        res._nextDay = undefined;
    }

    return res;
}

function prepareConfig (config) {
    var input = config._i,
        format = config._f;

    config._locale = config._locale || getLocale(config._l);

    if (input === null || (format === undefined && input === '')) {
        return createInvalid({nullInput: true});
    }

    if (typeof input === 'string') {
        config._i = input = config._locale.preparse(input);
    }

    if (isMoment(input)) {
        return new Moment(checkOverflow(input));
    } else if (isDate(input)) {
        config._d = input;
    } else if (isArray(format)) {
        configFromStringAndArray(config);
    } else if (format) {
        configFromStringAndFormat(config);
    }  else {
        configFromInput(config);
    }

    if (!isValid(config)) {
        config._d = null;
    }

    return config;
}

function configFromInput(config) {
    var input = config._i;
    if (isUndefined(input)) {
        config._d = new Date(hooks.now());
    } else if (isDate(input)) {
        config._d = new Date(input.valueOf());
    } else if (typeof input === 'string') {
        configFromString(config);
    } else if (isArray(input)) {
        config._a = map(input.slice(0), function (obj) {
            return parseInt(obj, 10);
        });
        configFromArray(config);
    } else if (isObject(input)) {
        configFromObject(config);
    } else if (isNumber(input)) {
        // from milliseconds
        config._d = new Date(input);
    } else {
        hooks.createFromInputFallback(config);
    }
}

function createLocalOrUTC (input, format, locale, strict, isUTC) {
    var c = {};

    if (locale === true || locale === false) {
        strict = locale;
        locale = undefined;
    }

    if ((isObject(input) && isObjectEmpty(input)) ||
            (isArray(input) && input.length === 0)) {
        input = undefined;
    }
    // object construction must be done this way.
    // https://github.com/moment/moment/issues/1423
    c._isAMomentObject = true;
    c._useUTC = c._isUTC = isUTC;
    c._l = locale;
    c._i = input;
    c._f = format;
    c._strict = strict;

    return createFromConfig(c);
}

function createLocal (input, format, locale, strict) {
    return createLocalOrUTC(input, format, locale, strict, false);
}

var prototypeMin = deprecate(
    'moment().min is deprecated, use moment.max instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other < this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

var prototypeMax = deprecate(
    'moment().max is deprecated, use moment.min instead. http://momentjs.com/guides/#/warnings/min-max/',
    function () {
        var other = createLocal.apply(null, arguments);
        if (this.isValid() && other.isValid()) {
            return other > this ? this : other;
        } else {
            return createInvalid();
        }
    }
);

// Pick a moment m from moments so that m[fn](other) is true for all
// other. This relies on the function fn to be transitive.
//
// moments should either be an array of moment objects or an array, whose
// first element is an array of moment objects.
function pickBy(fn, moments) {
    var res, i;
    if (moments.length === 1 && isArray(moments[0])) {
        moments = moments[0];
    }
    if (!moments.length) {
        return createLocal();
    }
    res = moments[0];
    for (i = 1; i < moments.length; ++i) {
        if (!moments[i].isValid() || moments[i][fn](res)) {
            res = moments[i];
        }
    }
    return res;
}

// TODO: Use [].sort instead?
function min () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isBefore', args);
}

function max () {
    var args = [].slice.call(arguments, 0);

    return pickBy('isAfter', args);
}

var now = function () {
    return Date.now ? Date.now() : +(new Date());
};

var ordering = ['year', 'quarter', 'month', 'week', 'day', 'hour', 'minute', 'second', 'millisecond'];

function isDurationValid(m) {
    for (var key in m) {
        if (!(ordering.indexOf(key) !== -1 && (m[key] == null || !isNaN(m[key])))) {
            return false;
        }
    }

    var unitHasDecimal = false;
    for (var i = 0; i < ordering.length; ++i) {
        if (m[ordering[i]]) {
            if (unitHasDecimal) {
                return false; // only allow non-integers for smallest unit
            }
            if (parseFloat(m[ordering[i]]) !== toInt(m[ordering[i]])) {
                unitHasDecimal = true;
            }
        }
    }

    return true;
}

function isValid$1() {
    return this._isValid;
}

function createInvalid$1() {
    return createDuration(NaN);
}

function Duration (duration) {
    var normalizedInput = normalizeObjectUnits(duration),
        years = normalizedInput.year || 0,
        quarters = normalizedInput.quarter || 0,
        months = normalizedInput.month || 0,
        weeks = normalizedInput.week || 0,
        days = normalizedInput.day || 0,
        hours = normalizedInput.hour || 0,
        minutes = normalizedInput.minute || 0,
        seconds = normalizedInput.second || 0,
        milliseconds = normalizedInput.millisecond || 0;

    this._isValid = isDurationValid(normalizedInput);

    // representation for dateAddRemove
    this._milliseconds = +milliseconds +
        seconds * 1e3 + // 1000
        minutes * 6e4 + // 1000 * 60
        hours * 1000 * 60 * 60; //using 1000 * 60 * 60 instead of 36e5 to avoid floating point rounding errors https://github.com/moment/moment/issues/2978
    // Because of dateAddRemove treats 24 hours as different from a
    // day when working around DST, we need to store them separately
    this._days = +days +
        weeks * 7;
    // It is impossible translate months into days without knowing
    // which months you are are talking about, so we have to store
    // it separately.
    this._months = +months +
        quarters * 3 +
        years * 12;

    this._data = {};

    this._locale = getLocale();

    this._bubble();
}

function isDuration (obj) {
    return obj instanceof Duration;
}

function absRound (number) {
    if (number < 0) {
        return Math.round(-1 * number) * -1;
    } else {
        return Math.round(number);
    }
}

// FORMATTING

function offset (token, separator) {
    addFormatToken(token, 0, 0, function () {
        var offset = this.utcOffset();
        var sign = '+';
        if (offset < 0) {
            offset = -offset;
            sign = '-';
        }
        return sign + zeroFill(~~(offset / 60), 2) + separator + zeroFill(~~(offset) % 60, 2);
    });
}

offset('Z', ':');
offset('ZZ', '');

// PARSING

addRegexToken('Z',  matchShortOffset);
addRegexToken('ZZ', matchShortOffset);
addParseToken(['Z', 'ZZ'], function (input, array, config) {
    config._useUTC = true;
    config._tzm = offsetFromString(matchShortOffset, input);
});

// HELPERS

// timezone chunker
// '+10:00' > ['10',  '00']
// '-1530'  > ['-15', '30']
var chunkOffset = /([\+\-]|\d\d)/gi;

function offsetFromString(matcher, string) {
    var matches = (string || '').match(matcher);

    if (matches === null) {
        return null;
    }

    var chunk   = matches[matches.length - 1] || [];
    var parts   = (chunk + '').match(chunkOffset) || ['-', 0, 0];
    var minutes = +(parts[1] * 60) + toInt(parts[2]);

    return minutes === 0 ?
      0 :
      parts[0] === '+' ? minutes : -minutes;
}

// Return a moment from input, that is local/utc/zone equivalent to model.
function cloneWithOffset(input, model) {
    var res, diff;
    if (model._isUTC) {
        res = model.clone();
        diff = (isMoment(input) || isDate(input) ? input.valueOf() : createLocal(input).valueOf()) - res.valueOf();
        // Use low-level api, because this fn is low-level api.
        res._d.setTime(res._d.valueOf() + diff);
        hooks.updateOffset(res, false);
        return res;
    } else {
        return createLocal(input).local();
    }
}

function getDateOffset (m) {
    // On Firefox.24 Date#getTimezoneOffset returns a floating point.
    // https://github.com/moment/moment/pull/1871
    return -Math.round(m._d.getTimezoneOffset() / 15) * 15;
}

// HOOKS

// This function will be called whenever a moment is mutated.
// It is intended to keep the offset in sync with the timezone.
hooks.updateOffset = function () {};

// MOMENTS

// keepLocalTime = true means only change the timezone, without
// affecting the local hour. So 5:31:26 +0300 --[utcOffset(2, true)]-->
// 5:31:26 +0200 It is possible that 5:31:26 doesn't exist with offset
// +0200, so we adjust the time as needed, to be valid.
//
// Keeping the time actually adds/subtracts (one hour)
// from the actual represented time. That is why we call updateOffset
// a second time. In case it wants us to change the offset again
// _changeInProgress == true case, then we have to adjust, because
// there is no such time in the given timezone.
function getSetOffset (input, keepLocalTime, keepMinutes) {
    var offset = this._offset || 0,
        localAdjust;
    if (!this.isValid()) {
        return input != null ? this : NaN;
    }
    if (input != null) {
        if (typeof input === 'string') {
            input = offsetFromString(matchShortOffset, input);
            if (input === null) {
                return this;
            }
        } else if (Math.abs(input) < 16 && !keepMinutes) {
            input = input * 60;
        }
        if (!this._isUTC && keepLocalTime) {
            localAdjust = getDateOffset(this);
        }
        this._offset = input;
        this._isUTC = true;
        if (localAdjust != null) {
            this.add(localAdjust, 'm');
        }
        if (offset !== input) {
            if (!keepLocalTime || this._changeInProgress) {
                addSubtract(this, createDuration(input - offset, 'm'), 1, false);
            } else if (!this._changeInProgress) {
                this._changeInProgress = true;
                hooks.updateOffset(this, true);
                this._changeInProgress = null;
            }
        }
        return this;
    } else {
        return this._isUTC ? offset : getDateOffset(this);
    }
}

function getSetZone (input, keepLocalTime) {
    if (input != null) {
        if (typeof input !== 'string') {
            input = -input;
        }

        this.utcOffset(input, keepLocalTime);

        return this;
    } else {
        return -this.utcOffset();
    }
}

function setOffsetToUTC (keepLocalTime) {
    return this.utcOffset(0, keepLocalTime);
}

function setOffsetToLocal (keepLocalTime) {
    if (this._isUTC) {
        this.utcOffset(0, keepLocalTime);
        this._isUTC = false;

        if (keepLocalTime) {
            this.subtract(getDateOffset(this), 'm');
        }
    }
    return this;
}

function setOffsetToParsedOffset () {
    if (this._tzm != null) {
        this.utcOffset(this._tzm, false, true);
    } else if (typeof this._i === 'string') {
        var tZone = offsetFromString(matchOffset, this._i);
        if (tZone != null) {
            this.utcOffset(tZone);
        }
        else {
            this.utcOffset(0, true);
        }
    }
    return this;
}

function hasAlignedHourOffset (input) {
    if (!this.isValid()) {
        return false;
    }
    input = input ? createLocal(input).utcOffset() : 0;

    return (this.utcOffset() - input) % 60 === 0;
}

function isDaylightSavingTime () {
    return (
        this.utcOffset() > this.clone().month(0).utcOffset() ||
        this.utcOffset() > this.clone().month(5).utcOffset()
    );
}

function isDaylightSavingTimeShifted () {
    if (!isUndefined(this._isDSTShifted)) {
        return this._isDSTShifted;
    }

    var c = {};

    copyConfig(c, this);
    c = prepareConfig(c);

    if (c._a) {
        var other = c._isUTC ? createUTC(c._a) : createLocal(c._a);
        this._isDSTShifted = this.isValid() &&
            compareArrays(c._a, other.toArray()) > 0;
    } else {
        this._isDSTShifted = false;
    }

    return this._isDSTShifted;
}

function isLocal () {
    return this.isValid() ? !this._isUTC : false;
}

function isUtcOffset () {
    return this.isValid() ? this._isUTC : false;
}

function isUtc () {
    return this.isValid() ? this._isUTC && this._offset === 0 : false;
}

// ASP.NET json date format regex
var aspNetRegex = /^(\-)?(?:(\d*)[. ])?(\d+)\:(\d+)(?:\:(\d+)(\.\d*)?)?$/;

// from http://docs.closure-library.googlecode.com/git/closure_goog_date_date.js.source.html
// somewhat more in line with 4.4.3.2 2004 spec, but allows decimal anywhere
// and further modified to allow for strings containing both week and day
var isoRegex = /^(-)?P(?:(-?[0-9,.]*)Y)?(?:(-?[0-9,.]*)M)?(?:(-?[0-9,.]*)W)?(?:(-?[0-9,.]*)D)?(?:T(?:(-?[0-9,.]*)H)?(?:(-?[0-9,.]*)M)?(?:(-?[0-9,.]*)S)?)?$/;

function createDuration (input, key) {
    var duration = input,
        // matching against regexp is expensive, do it on demand
        match = null,
        sign,
        ret,
        diffRes;

    if (isDuration(input)) {
        duration = {
            ms : input._milliseconds,
            d  : input._days,
            M  : input._months
        };
    } else if (isNumber(input)) {
        duration = {};
        if (key) {
            duration[key] = input;
        } else {
            duration.milliseconds = input;
        }
    } else if (!!(match = aspNetRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : 1;
        duration = {
            y  : 0,
            d  : toInt(match[DATE])                         * sign,
            h  : toInt(match[HOUR])                         * sign,
            m  : toInt(match[MINUTE])                       * sign,
            s  : toInt(match[SECOND])                       * sign,
            ms : toInt(absRound(match[MILLISECOND] * 1000)) * sign // the millisecond decimal point is included in the match
        };
    } else if (!!(match = isoRegex.exec(input))) {
        sign = (match[1] === '-') ? -1 : 1;
        duration = {
            y : parseIso(match[2], sign),
            M : parseIso(match[3], sign),
            w : parseIso(match[4], sign),
            d : parseIso(match[5], sign),
            h : parseIso(match[6], sign),
            m : parseIso(match[7], sign),
            s : parseIso(match[8], sign)
        };
    } else if (duration == null) {// checks for null or undefined
        duration = {};
    } else if (typeof duration === 'object' && ('from' in duration || 'to' in duration)) {
        diffRes = momentsDifference(createLocal(duration.from), createLocal(duration.to));

        duration = {};
        duration.ms = diffRes.milliseconds;
        duration.M = diffRes.months;
    }

    ret = new Duration(duration);

    if (isDuration(input) && hasOwnProp(input, '_locale')) {
        ret._locale = input._locale;
    }

    return ret;
}

createDuration.fn = Duration.prototype;
createDuration.invalid = createInvalid$1;

function parseIso (inp, sign) {
    // We'd normally use ~~inp for this, but unfortunately it also
    // converts floats to ints.
    // inp may be undefined, so careful calling replace on it.
    var res = inp && parseFloat(inp.replace(',', '.'));
    // apply sign while we're at it
    return (isNaN(res) ? 0 : res) * sign;
}

function positiveMomentsDifference(base, other) {
    var res = {milliseconds: 0, months: 0};

    res.months = other.month() - base.month() +
        (other.year() - base.year()) * 12;
    if (base.clone().add(res.months, 'M').isAfter(other)) {
        --res.months;
    }

    res.milliseconds = +other - +(base.clone().add(res.months, 'M'));

    return res;
}

function momentsDifference(base, other) {
    var res;
    if (!(base.isValid() && other.isValid())) {
        return {milliseconds: 0, months: 0};
    }

    other = cloneWithOffset(other, base);
    if (base.isBefore(other)) {
        res = positiveMomentsDifference(base, other);
    } else {
        res = positiveMomentsDifference(other, base);
        res.milliseconds = -res.milliseconds;
        res.months = -res.months;
    }

    return res;
}

// TODO: remove 'name' arg after deprecation is removed
function createAdder(direction, name) {
    return function (val, period) {
        var dur, tmp;
        //invert the arguments, but complain about it
        if (period !== null && !isNaN(+period)) {
            deprecateSimple(name, 'moment().' + name  + '(period, number) is deprecated. Please use moment().' + name + '(number, period). ' +
            'See http://momentjs.com/guides/#/warnings/add-inverted-param/ for more info.');
            tmp = val; val = period; period = tmp;
        }

        val = typeof val === 'string' ? +val : val;
        dur = createDuration(val, period);
        addSubtract(this, dur, direction);
        return this;
    };
}

function addSubtract (mom, duration, isAdding, updateOffset) {
    var milliseconds = duration._milliseconds,
        days = absRound(duration._days),
        months = absRound(duration._months);

    if (!mom.isValid()) {
        // No op
        return;
    }

    updateOffset = updateOffset == null ? true : updateOffset;

    if (milliseconds) {
        mom._d.setTime(mom._d.valueOf() + milliseconds * isAdding);
    }
    if (days) {
        set$1(mom, 'Date', get(mom, 'Date') + days * isAdding);
    }
    if (months) {
        setMonth(mom, get(mom, 'Month') + months * isAdding);
    }
    if (updateOffset) {
        hooks.updateOffset(mom, days || months);
    }
}

var add      = createAdder(1, 'add');
var subtract = createAdder(-1, 'subtract');

function getCalendarFormat(myMoment, now) {
    var diff = myMoment.diff(now, 'days', true);
    return diff < -6 ? 'sameElse' :
            diff < -1 ? 'lastWeek' :
            diff < 0 ? 'lastDay' :
            diff < 1 ? 'sameDay' :
            diff < 2 ? 'nextDay' :
            diff < 7 ? 'nextWeek' : 'sameElse';
}

function calendar$1 (time, formats) {
    // We want to compare the start of today, vs this.
    // Getting start-of-today depends on whether we're local/utc/offset or not.
    var now = time || createLocal(),
        sod = cloneWithOffset(now, this).startOf('day'),
        format = hooks.calendarFormat(this, sod) || 'sameElse';

    var output = formats && (isFunction(formats[format]) ? formats[format].call(this, now) : formats[format]);

    return this.format(output || this.localeData().calendar(format, this, createLocal(now)));
}

function clone () {
    return new Moment(this);
}

function isAfter (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() > localInput.valueOf();
    } else {
        return localInput.valueOf() < this.clone().startOf(units).valueOf();
    }
}

function isBefore (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input);
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(!isUndefined(units) ? units : 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() < localInput.valueOf();
    } else {
        return this.clone().endOf(units).valueOf() < localInput.valueOf();
    }
}

function isBetween (from, to, units, inclusivity) {
    inclusivity = inclusivity || '()';
    return (inclusivity[0] === '(' ? this.isAfter(from, units) : !this.isBefore(from, units)) &&
        (inclusivity[1] === ')' ? this.isBefore(to, units) : !this.isAfter(to, units));
}

function isSame (input, units) {
    var localInput = isMoment(input) ? input : createLocal(input),
        inputMs;
    if (!(this.isValid() && localInput.isValid())) {
        return false;
    }
    units = normalizeUnits(units || 'millisecond');
    if (units === 'millisecond') {
        return this.valueOf() === localInput.valueOf();
    } else {
        inputMs = localInput.valueOf();
        return this.clone().startOf(units).valueOf() <= inputMs && inputMs <= this.clone().endOf(units).valueOf();
    }
}

function isSameOrAfter (input, units) {
    return this.isSame(input, units) || this.isAfter(input,units);
}

function isSameOrBefore (input, units) {
    return this.isSame(input, units) || this.isBefore(input,units);
}

function diff (input, units, asFloat) {
    var that,
        zoneDelta,
        delta, output;

    if (!this.isValid()) {
        return NaN;
    }

    that = cloneWithOffset(input, this);

    if (!that.isValid()) {
        return NaN;
    }

    zoneDelta = (that.utcOffset() - this.utcOffset()) * 6e4;

    units = normalizeUnits(units);

    if (units === 'year' || units === 'month' || units === 'quarter') {
        output = monthDiff(this, that);
        if (units === 'quarter') {
            output = output / 3;
        } else if (units === 'year') {
            output = output / 12;
        }
    } else {
        delta = this - that;
        output = units === 'second' ? delta / 1e3 : // 1000
            units === 'minute' ? delta / 6e4 : // 1000 * 60
            units === 'hour' ? delta / 36e5 : // 1000 * 60 * 60
            units === 'day' ? (delta - zoneDelta) / 864e5 : // 1000 * 60 * 60 * 24, negate dst
            units === 'week' ? (delta - zoneDelta) / 6048e5 : // 1000 * 60 * 60 * 24 * 7, negate dst
            delta;
    }
    return asFloat ? output : absFloor(output);
}

function monthDiff (a, b) {
    // difference in months
    var wholeMonthDiff = ((b.year() - a.year()) * 12) + (b.month() - a.month()),
        // b is in (anchor - 1 month, anchor + 1 month)
        anchor = a.clone().add(wholeMonthDiff, 'months'),
        anchor2, adjust;

    if (b - anchor < 0) {
        anchor2 = a.clone().add(wholeMonthDiff - 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor - anchor2);
    } else {
        anchor2 = a.clone().add(wholeMonthDiff + 1, 'months');
        // linear across the month
        adjust = (b - anchor) / (anchor2 - anchor);
    }

    //check for negative zero, return zero if negative zero
    return -(wholeMonthDiff + adjust) || 0;
}

hooks.defaultFormat = 'YYYY-MM-DDTHH:mm:ssZ';
hooks.defaultFormatUtc = 'YYYY-MM-DDTHH:mm:ss[Z]';

function toString () {
    return this.clone().locale('en').format('ddd MMM DD YYYY HH:mm:ss [GMT]ZZ');
}

function toISOString() {
    if (!this.isValid()) {
        return null;
    }
    var m = this.clone().utc();
    if (m.year() < 0 || m.year() > 9999) {
        return formatMoment(m, 'YYYYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
    }
    if (isFunction(Date.prototype.toISOString)) {
        // native implementation is ~50x faster, use it when we can
        return this.toDate().toISOString();
    }
    return formatMoment(m, 'YYYY-MM-DD[T]HH:mm:ss.SSS[Z]');
}

/**
 * Return a human readable representation of a moment that can
 * also be evaluated to get a new moment which is the same
 *
 * @link https://nodejs.org/dist/latest/docs/api/util.html#util_custom_inspect_function_on_objects
 */
function inspect () {
    if (!this.isValid()) {
        return 'moment.invalid(/* ' + this._i + ' */)';
    }
    var func = 'moment';
    var zone = '';
    if (!this.isLocal()) {
        func = this.utcOffset() === 0 ? 'moment.utc' : 'moment.parseZone';
        zone = 'Z';
    }
    var prefix = '[' + func + '("]';
    var year = (0 <= this.year() && this.year() <= 9999) ? 'YYYY' : 'YYYYYY';
    var datetime = '-MM-DD[T]HH:mm:ss.SSS';
    var suffix = zone + '[")]';

    return this.format(prefix + year + datetime + suffix);
}

function format (inputString) {
    if (!inputString) {
        inputString = this.isUtc() ? hooks.defaultFormatUtc : hooks.defaultFormat;
    }
    var output = formatMoment(this, inputString);
    return this.localeData().postformat(output);
}

function from (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({to: this, from: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function fromNow (withoutSuffix) {
    return this.from(createLocal(), withoutSuffix);
}

function to (time, withoutSuffix) {
    if (this.isValid() &&
            ((isMoment(time) && time.isValid()) ||
             createLocal(time).isValid())) {
        return createDuration({from: this, to: time}).locale(this.locale()).humanize(!withoutSuffix);
    } else {
        return this.localeData().invalidDate();
    }
}

function toNow (withoutSuffix) {
    return this.to(createLocal(), withoutSuffix);
}

// If passed a locale key, it will set the locale for this
// instance.  Otherwise, it will return the locale configuration
// variables for this instance.
function locale (key) {
    var newLocaleData;

    if (key === undefined) {
        return this._locale._abbr;
    } else {
        newLocaleData = getLocale(key);
        if (newLocaleData != null) {
            this._locale = newLocaleData;
        }
        return this;
    }
}

var lang = deprecate(
    'moment().lang() is deprecated. Instead, use moment().localeData() to get the language configuration. Use moment().locale() to change languages.',
    function (key) {
        if (key === undefined) {
            return this.localeData();
        } else {
            return this.locale(key);
        }
    }
);

function localeData () {
    return this._locale;
}

function startOf (units) {
    units = normalizeUnits(units);
    // the following switch intentionally omits break keywords
    // to utilize falling through the cases.
    switch (units) {
        case 'year':
            this.month(0);
            /* falls through */
        case 'quarter':
        case 'month':
            this.date(1);
            /* falls through */
        case 'week':
        case 'isoWeek':
        case 'day':
        case 'date':
            this.hours(0);
            /* falls through */
        case 'hour':
            this.minutes(0);
            /* falls through */
        case 'minute':
            this.seconds(0);
            /* falls through */
        case 'second':
            this.milliseconds(0);
    }

    // weeks are a special case
    if (units === 'week') {
        this.weekday(0);
    }
    if (units === 'isoWeek') {
        this.isoWeekday(1);
    }

    // quarters are also special
    if (units === 'quarter') {
        this.month(Math.floor(this.month() / 3) * 3);
    }

    return this;
}

function endOf (units) {
    units = normalizeUnits(units);
    if (units === undefined || units === 'millisecond') {
        return this;
    }

    // 'date' is an alias for 'day', so it should be considered as such.
    if (units === 'date') {
        units = 'day';
    }

    return this.startOf(units).add(1, (units === 'isoWeek' ? 'week' : units)).subtract(1, 'ms');
}

function valueOf () {
    return this._d.valueOf() - ((this._offset || 0) * 60000);
}

function unix () {
    return Math.floor(this.valueOf() / 1000);
}

function toDate () {
    return new Date(this.valueOf());
}

function toArray () {
    var m = this;
    return [m.year(), m.month(), m.date(), m.hour(), m.minute(), m.second(), m.millisecond()];
}

function toObject () {
    var m = this;
    return {
        years: m.year(),
        months: m.month(),
        date: m.date(),
        hours: m.hours(),
        minutes: m.minutes(),
        seconds: m.seconds(),
        milliseconds: m.milliseconds()
    };
}

function toJSON () {
    // new Date(NaN).toJSON() === null
    return this.isValid() ? this.toISOString() : null;
}

function isValid$2 () {
    return isValid(this);
}

function parsingFlags () {
    return extend({}, getParsingFlags(this));
}

function invalidAt () {
    return getParsingFlags(this).overflow;
}

function creationData() {
    return {
        input: this._i,
        format: this._f,
        locale: this._locale,
        isUTC: this._isUTC,
        strict: this._strict
    };
}

// FORMATTING

addFormatToken(0, ['gg', 2], 0, function () {
    return this.weekYear() % 100;
});

addFormatToken(0, ['GG', 2], 0, function () {
    return this.isoWeekYear() % 100;
});

function addWeekYearFormatToken (token, getter) {
    addFormatToken(0, [token, token.length], 0, getter);
}

addWeekYearFormatToken('gggg',     'weekYear');
addWeekYearFormatToken('ggggg',    'weekYear');
addWeekYearFormatToken('GGGG',  'isoWeekYear');
addWeekYearFormatToken('GGGGG', 'isoWeekYear');

// ALIASES

addUnitAlias('weekYear', 'gg');
addUnitAlias('isoWeekYear', 'GG');

// PRIORITY

addUnitPriority('weekYear', 1);
addUnitPriority('isoWeekYear', 1);


// PARSING

addRegexToken('G',      matchSigned);
addRegexToken('g',      matchSigned);
addRegexToken('GG',     match1to2, match2);
addRegexToken('gg',     match1to2, match2);
addRegexToken('GGGG',   match1to4, match4);
addRegexToken('gggg',   match1to4, match4);
addRegexToken('GGGGG',  match1to6, match6);
addRegexToken('ggggg',  match1to6, match6);

addWeekParseToken(['gggg', 'ggggg', 'GGGG', 'GGGGG'], function (input, week, config, token) {
    week[token.substr(0, 2)] = toInt(input);
});

addWeekParseToken(['gg', 'GG'], function (input, week, config, token) {
    week[token] = hooks.parseTwoDigitYear(input);
});

// MOMENTS

function getSetWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input,
            this.week(),
            this.weekday(),
            this.localeData()._week.dow,
            this.localeData()._week.doy);
}

function getSetISOWeekYear (input) {
    return getSetWeekYearHelper.call(this,
            input, this.isoWeek(), this.isoWeekday(), 1, 4);
}

function getISOWeeksInYear () {
    return weeksInYear(this.year(), 1, 4);
}

function getWeeksInYear () {
    var weekInfo = this.localeData()._week;
    return weeksInYear(this.year(), weekInfo.dow, weekInfo.doy);
}

function getSetWeekYearHelper(input, week, weekday, dow, doy) {
    var weeksTarget;
    if (input == null) {
        return weekOfYear(this, dow, doy).year;
    } else {
        weeksTarget = weeksInYear(input, dow, doy);
        if (week > weeksTarget) {
            week = weeksTarget;
        }
        return setWeekAll.call(this, input, week, weekday, dow, doy);
    }
}

function setWeekAll(weekYear, week, weekday, dow, doy) {
    var dayOfYearData = dayOfYearFromWeeks(weekYear, week, weekday, dow, doy),
        date = createUTCDate(dayOfYearData.year, 0, dayOfYearData.dayOfYear);

    this.year(date.getUTCFullYear());
    this.month(date.getUTCMonth());
    this.date(date.getUTCDate());
    return this;
}

// FORMATTING

addFormatToken('Q', 0, 'Qo', 'quarter');

// ALIASES

addUnitAlias('quarter', 'Q');

// PRIORITY

addUnitPriority('quarter', 7);

// PARSING

addRegexToken('Q', match1);
addParseToken('Q', function (input, array) {
    array[MONTH] = (toInt(input) - 1) * 3;
});

// MOMENTS

function getSetQuarter (input) {
    return input == null ? Math.ceil((this.month() + 1) / 3) : this.month((input - 1) * 3 + this.month() % 3);
}

// FORMATTING

addFormatToken('D', ['DD', 2], 'Do', 'date');

// ALIASES

addUnitAlias('date', 'D');

// PRIOROITY
addUnitPriority('date', 9);

// PARSING

addRegexToken('D',  match1to2);
addRegexToken('DD', match1to2, match2);
addRegexToken('Do', function (isStrict, locale) {
    // TODO: Remove "ordinalParse" fallback in next major release.
    return isStrict ?
      (locale._dayOfMonthOrdinalParse || locale._ordinalParse) :
      locale._dayOfMonthOrdinalParseLenient;
});

addParseToken(['D', 'DD'], DATE);
addParseToken('Do', function (input, array) {
    array[DATE] = toInt(input.match(match1to2)[0], 10);
});

// MOMENTS

var getSetDayOfMonth = makeGetSet('Date', true);

// FORMATTING

addFormatToken('DDD', ['DDDD', 3], 'DDDo', 'dayOfYear');

// ALIASES

addUnitAlias('dayOfYear', 'DDD');

// PRIORITY
addUnitPriority('dayOfYear', 4);

// PARSING

addRegexToken('DDD',  match1to3);
addRegexToken('DDDD', match3);
addParseToken(['DDD', 'DDDD'], function (input, array, config) {
    config._dayOfYear = toInt(input);
});

// HELPERS

// MOMENTS

function getSetDayOfYear (input) {
    var dayOfYear = Math.round((this.clone().startOf('day') - this.clone().startOf('year')) / 864e5) + 1;
    return input == null ? dayOfYear : this.add((input - dayOfYear), 'd');
}

// FORMATTING

addFormatToken('m', ['mm', 2], 0, 'minute');

// ALIASES

addUnitAlias('minute', 'm');

// PRIORITY

addUnitPriority('minute', 14);

// PARSING

addRegexToken('m',  match1to2);
addRegexToken('mm', match1to2, match2);
addParseToken(['m', 'mm'], MINUTE);

// MOMENTS

var getSetMinute = makeGetSet('Minutes', false);

// FORMATTING

addFormatToken('s', ['ss', 2], 0, 'second');

// ALIASES

addUnitAlias('second', 's');

// PRIORITY

addUnitPriority('second', 15);

// PARSING

addRegexToken('s',  match1to2);
addRegexToken('ss', match1to2, match2);
addParseToken(['s', 'ss'], SECOND);

// MOMENTS

var getSetSecond = makeGetSet('Seconds', false);

// FORMATTING

addFormatToken('S', 0, 0, function () {
    return ~~(this.millisecond() / 100);
});

addFormatToken(0, ['SS', 2], 0, function () {
    return ~~(this.millisecond() / 10);
});

addFormatToken(0, ['SSS', 3], 0, 'millisecond');
addFormatToken(0, ['SSSS', 4], 0, function () {
    return this.millisecond() * 10;
});
addFormatToken(0, ['SSSSS', 5], 0, function () {
    return this.millisecond() * 100;
});
addFormatToken(0, ['SSSSSS', 6], 0, function () {
    return this.millisecond() * 1000;
});
addFormatToken(0, ['SSSSSSS', 7], 0, function () {
    return this.millisecond() * 10000;
});
addFormatToken(0, ['SSSSSSSS', 8], 0, function () {
    return this.millisecond() * 100000;
});
addFormatToken(0, ['SSSSSSSSS', 9], 0, function () {
    return this.millisecond() * 1000000;
});


// ALIASES

addUnitAlias('millisecond', 'ms');

// PRIORITY

addUnitPriority('millisecond', 16);

// PARSING

addRegexToken('S',    match1to3, match1);
addRegexToken('SS',   match1to3, match2);
addRegexToken('SSS',  match1to3, match3);

var token;
for (token = 'SSSS'; token.length <= 9; token += 'S') {
    addRegexToken(token, matchUnsigned);
}

function parseMs(input, array) {
    array[MILLISECOND] = toInt(('0.' + input) * 1000);
}

for (token = 'S'; token.length <= 9; token += 'S') {
    addParseToken(token, parseMs);
}
// MOMENTS

var getSetMillisecond = makeGetSet('Milliseconds', false);

// FORMATTING

addFormatToken('z',  0, 0, 'zoneAbbr');
addFormatToken('zz', 0, 0, 'zoneName');

// MOMENTS

function getZoneAbbr () {
    return this._isUTC ? 'UTC' : '';
}

function getZoneName () {
    return this._isUTC ? 'Coordinated Universal Time' : '';
}

var proto = Moment.prototype;

proto.add               = add;
proto.calendar          = calendar$1;
proto.clone             = clone;
proto.diff              = diff;
proto.endOf             = endOf;
proto.format            = format;
proto.from              = from;
proto.fromNow           = fromNow;
proto.to                = to;
proto.toNow             = toNow;
proto.get               = stringGet;
proto.invalidAt         = invalidAt;
proto.isAfter           = isAfter;
proto.isBefore          = isBefore;
proto.isBetween         = isBetween;
proto.isSame            = isSame;
proto.isSameOrAfter     = isSameOrAfter;
proto.isSameOrBefore    = isSameOrBefore;
proto.isValid           = isValid$2;
proto.lang              = lang;
proto.locale            = locale;
proto.localeData        = localeData;
proto.max               = prototypeMax;
proto.min               = prototypeMin;
proto.parsingFlags      = parsingFlags;
proto.set               = stringSet;
proto.startOf           = startOf;
proto.subtract          = subtract;
proto.toArray           = toArray;
proto.toObject          = toObject;
proto.toDate            = toDate;
proto.toISOString       = toISOString;
proto.inspect           = inspect;
proto.toJSON            = toJSON;
proto.toString          = toString;
proto.unix              = unix;
proto.valueOf           = valueOf;
proto.creationData      = creationData;

// Year
proto.year       = getSetYear;
proto.isLeapYear = getIsLeapYear;

// Week Year
proto.weekYear    = getSetWeekYear;
proto.isoWeekYear = getSetISOWeekYear;

// Quarter
proto.quarter = proto.quarters = getSetQuarter;

// Month
proto.month       = getSetMonth;
proto.daysInMonth = getDaysInMonth;

// Week
proto.week           = proto.weeks        = getSetWeek;
proto.isoWeek        = proto.isoWeeks     = getSetISOWeek;
proto.weeksInYear    = getWeeksInYear;
proto.isoWeeksInYear = getISOWeeksInYear;

// Day
proto.date       = getSetDayOfMonth;
proto.day        = proto.days             = getSetDayOfWeek;
proto.weekday    = getSetLocaleDayOfWeek;
proto.isoWeekday = getSetISODayOfWeek;
proto.dayOfYear  = getSetDayOfYear;

// Hour
proto.hour = proto.hours = getSetHour;

// Minute
proto.minute = proto.minutes = getSetMinute;

// Second
proto.second = proto.seconds = getSetSecond;

// Millisecond
proto.millisecond = proto.milliseconds = getSetMillisecond;

// Offset
proto.utcOffset            = getSetOffset;
proto.utc                  = setOffsetToUTC;
proto.local                = setOffsetToLocal;
proto.parseZone            = setOffsetToParsedOffset;
proto.hasAlignedHourOffset = hasAlignedHourOffset;
proto.isDST                = isDaylightSavingTime;
proto.isLocal              = isLocal;
proto.isUtcOffset          = isUtcOffset;
proto.isUtc                = isUtc;
proto.isUTC                = isUtc;

// Timezone
proto.zoneAbbr = getZoneAbbr;
proto.zoneName = getZoneName;

// Deprecations
proto.dates  = deprecate('dates accessor is deprecated. Use date instead.', getSetDayOfMonth);
proto.months = deprecate('months accessor is deprecated. Use month instead', getSetMonth);
proto.years  = deprecate('years accessor is deprecated. Use year instead', getSetYear);
proto.zone   = deprecate('moment().zone is deprecated, use moment().utcOffset instead. http://momentjs.com/guides/#/warnings/zone/', getSetZone);
proto.isDSTShifted = deprecate('isDSTShifted is deprecated. See http://momentjs.com/guides/#/warnings/dst-shifted/ for more information', isDaylightSavingTimeShifted);

function createUnix (input) {
    return createLocal(input * 1000);
}

function createInZone () {
    return createLocal.apply(null, arguments).parseZone();
}

function preParsePostFormat (string) {
    return string;
}

var proto$1 = Locale.prototype;

proto$1.calendar        = calendar;
proto$1.longDateFormat  = longDateFormat;
proto$1.invalidDate     = invalidDate;
proto$1.ordinal         = ordinal;
proto$1.preparse        = preParsePostFormat;
proto$1.postformat      = preParsePostFormat;
proto$1.relativeTime    = relativeTime;
proto$1.pastFuture      = pastFuture;
proto$1.set             = set;

// Month
proto$1.months            =        localeMonths;
proto$1.monthsShort       =        localeMonthsShort;
proto$1.monthsParse       =        localeMonthsParse;
proto$1.monthsRegex       = monthsRegex;
proto$1.monthsShortRegex  = monthsShortRegex;

// Week
proto$1.week = localeWeek;
proto$1.firstDayOfYear = localeFirstDayOfYear;
proto$1.firstDayOfWeek = localeFirstDayOfWeek;

// Day of Week
proto$1.weekdays       =        localeWeekdays;
proto$1.weekdaysMin    =        localeWeekdaysMin;
proto$1.weekdaysShort  =        localeWeekdaysShort;
proto$1.weekdaysParse  =        localeWeekdaysParse;

proto$1.weekdaysRegex       =        weekdaysRegex;
proto$1.weekdaysShortRegex  =        weekdaysShortRegex;
proto$1.weekdaysMinRegex    =        weekdaysMinRegex;

// Hours
proto$1.isPM = localeIsPM;
proto$1.meridiem = localeMeridiem;

function get$1 (format, index, field, setter) {
    var locale = getLocale();
    var utc = createUTC().set(setter, index);
    return locale[field](utc, format);
}

function listMonthsImpl (format, index, field) {
    if (isNumber(format)) {
        index = format;
        format = undefined;
    }

    format = format || '';

    if (index != null) {
        return get$1(format, index, field, 'month');
    }

    var i;
    var out = [];
    for (i = 0; i < 12; i++) {
        out[i] = get$1(format, i, field, 'month');
    }
    return out;
}

// ()
// (5)
// (fmt, 5)
// (fmt)
// (true)
// (true, 5)
// (true, fmt, 5)
// (true, fmt)
function listWeekdaysImpl (localeSorted, format, index, field) {
    if (typeof localeSorted === 'boolean') {
        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    } else {
        format = localeSorted;
        index = format;
        localeSorted = false;

        if (isNumber(format)) {
            index = format;
            format = undefined;
        }

        format = format || '';
    }

    var locale = getLocale(),
        shift = localeSorted ? locale._week.dow : 0;

    if (index != null) {
        return get$1(format, (index + shift) % 7, field, 'day');
    }

    var i;
    var out = [];
    for (i = 0; i < 7; i++) {
        out[i] = get$1(format, (i + shift) % 7, field, 'day');
    }
    return out;
}

function listMonths (format, index) {
    return listMonthsImpl(format, index, 'months');
}

function listMonthsShort (format, index) {
    return listMonthsImpl(format, index, 'monthsShort');
}

function listWeekdays (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdays');
}

function listWeekdaysShort (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysShort');
}

function listWeekdaysMin (localeSorted, format, index) {
    return listWeekdaysImpl(localeSorted, format, index, 'weekdaysMin');
}

getSetGlobalLocale('en', {
    dayOfMonthOrdinalParse: /\d{1,2}(th|st|nd|rd)/,
    ordinal : function (number) {
        var b = number % 10,
            output = (toInt(number % 100 / 10) === 1) ? 'th' :
            (b === 1) ? 'st' :
            (b === 2) ? 'nd' :
            (b === 3) ? 'rd' : 'th';
        return number + output;
    }
});

// Side effect imports
hooks.lang = deprecate('moment.lang is deprecated. Use moment.locale instead.', getSetGlobalLocale);
hooks.langData = deprecate('moment.langData is deprecated. Use moment.localeData instead.', getLocale);

var mathAbs = Math.abs;

function abs () {
    var data           = this._data;

    this._milliseconds = mathAbs(this._milliseconds);
    this._days         = mathAbs(this._days);
    this._months       = mathAbs(this._months);

    data.milliseconds  = mathAbs(data.milliseconds);
    data.seconds       = mathAbs(data.seconds);
    data.minutes       = mathAbs(data.minutes);
    data.hours         = mathAbs(data.hours);
    data.months        = mathAbs(data.months);
    data.years         = mathAbs(data.years);

    return this;
}

function addSubtract$1 (duration, input, value, direction) {
    var other = createDuration(input, value);

    duration._milliseconds += direction * other._milliseconds;
    duration._days         += direction * other._days;
    duration._months       += direction * other._months;

    return duration._bubble();
}

// supports only 2.0-style add(1, 's') or add(duration)
function add$1 (input, value) {
    return addSubtract$1(this, input, value, 1);
}

// supports only 2.0-style subtract(1, 's') or subtract(duration)
function subtract$1 (input, value) {
    return addSubtract$1(this, input, value, -1);
}

function absCeil (number) {
    if (number < 0) {
        return Math.floor(number);
    } else {
        return Math.ceil(number);
    }
}

function bubble () {
    var milliseconds = this._milliseconds;
    var days         = this._days;
    var months       = this._months;
    var data         = this._data;
    var seconds, minutes, hours, years, monthsFromDays;

    // if we have a mix of positive and negative values, bubble down first
    // check: https://github.com/moment/moment/issues/2166
    if (!((milliseconds >= 0 && days >= 0 && months >= 0) ||
            (milliseconds <= 0 && days <= 0 && months <= 0))) {
        milliseconds += absCeil(monthsToDays(months) + days) * 864e5;
        days = 0;
        months = 0;
    }

    // The following code bubbles up values, see the tests for
    // examples of what that means.
    data.milliseconds = milliseconds % 1000;

    seconds           = absFloor(milliseconds / 1000);
    data.seconds      = seconds % 60;

    minutes           = absFloor(seconds / 60);
    data.minutes      = minutes % 60;

    hours             = absFloor(minutes / 60);
    data.hours        = hours % 24;

    days += absFloor(hours / 24);

    // convert days to months
    monthsFromDays = absFloor(daysToMonths(days));
    months += monthsFromDays;
    days -= absCeil(monthsToDays(monthsFromDays));

    // 12 months -> 1 year
    years = absFloor(months / 12);
    months %= 12;

    data.days   = days;
    data.months = months;
    data.years  = years;

    return this;
}

function daysToMonths (days) {
    // 400 years have 146097 days (taking into account leap year rules)
    // 400 years have 12 months === 4800
    return days * 4800 / 146097;
}

function monthsToDays (months) {
    // the reverse of daysToMonths
    return months * 146097 / 4800;
}

function as (units) {
    if (!this.isValid()) {
        return NaN;
    }
    var days;
    var months;
    var milliseconds = this._milliseconds;

    units = normalizeUnits(units);

    if (units === 'month' || units === 'year') {
        days   = this._days   + milliseconds / 864e5;
        months = this._months + daysToMonths(days);
        return units === 'month' ? months : months / 12;
    } else {
        // handle milliseconds separately because of floating point math errors (issue #1867)
        days = this._days + Math.round(monthsToDays(this._months));
        switch (units) {
            case 'week'   : return days / 7     + milliseconds / 6048e5;
            case 'day'    : return days         + milliseconds / 864e5;
            case 'hour'   : return days * 24    + milliseconds / 36e5;
            case 'minute' : return days * 1440  + milliseconds / 6e4;
            case 'second' : return days * 86400 + milliseconds / 1000;
            // Math.floor prevents floating point math errors here
            case 'millisecond': return Math.floor(days * 864e5) + milliseconds;
            default: throw new Error('Unknown unit ' + units);
        }
    }
}

// TODO: Use this.as('ms')?
function valueOf$1 () {
    if (!this.isValid()) {
        return NaN;
    }
    return (
        this._milliseconds +
        this._days * 864e5 +
        (this._months % 12) * 2592e6 +
        toInt(this._months / 12) * 31536e6
    );
}

function makeAs (alias) {
    return function () {
        return this.as(alias);
    };
}

var asMilliseconds = makeAs('ms');
var asSeconds      = makeAs('s');
var asMinutes      = makeAs('m');
var asHours        = makeAs('h');
var asDays         = makeAs('d');
var asWeeks        = makeAs('w');
var asMonths       = makeAs('M');
var asYears        = makeAs('y');

function get$2 (units) {
    units = normalizeUnits(units);
    return this.isValid() ? this[units + 's']() : NaN;
}

function makeGetter(name) {
    return function () {
        return this.isValid() ? this._data[name] : NaN;
    };
}

var milliseconds = makeGetter('milliseconds');
var seconds      = makeGetter('seconds');
var minutes      = makeGetter('minutes');
var hours        = makeGetter('hours');
var days         = makeGetter('days');
var months       = makeGetter('months');
var years        = makeGetter('years');

function weeks () {
    return absFloor(this.days() / 7);
}

var round = Math.round;
var thresholds = {
    ss: 44,         // a few seconds to seconds
    s : 45,         // seconds to minute
    m : 45,         // minutes to hour
    h : 22,         // hours to day
    d : 26,         // days to month
    M : 11          // months to year
};

// helper function for moment.fn.from, moment.fn.fromNow, and moment.duration.fn.humanize
function substituteTimeAgo(string, number, withoutSuffix, isFuture, locale) {
    return locale.relativeTime(number || 1, !!withoutSuffix, string, isFuture);
}

function relativeTime$1 (posNegDuration, withoutSuffix, locale) {
    var duration = createDuration(posNegDuration).abs();
    var seconds  = round(duration.as('s'));
    var minutes  = round(duration.as('m'));
    var hours    = round(duration.as('h'));
    var days     = round(duration.as('d'));
    var months   = round(duration.as('M'));
    var years    = round(duration.as('y'));

    var a = seconds <= thresholds.ss && ['s', seconds]  ||
            seconds < thresholds.s   && ['ss', seconds] ||
            minutes <= 1             && ['m']           ||
            minutes < thresholds.m   && ['mm', minutes] ||
            hours   <= 1             && ['h']           ||
            hours   < thresholds.h   && ['hh', hours]   ||
            days    <= 1             && ['d']           ||
            days    < thresholds.d   && ['dd', days]    ||
            months  <= 1             && ['M']           ||
            months  < thresholds.M   && ['MM', months]  ||
            years   <= 1             && ['y']           || ['yy', years];

    a[2] = withoutSuffix;
    a[3] = +posNegDuration > 0;
    a[4] = locale;
    return substituteTimeAgo.apply(null, a);
}

// This function allows you to set the rounding function for relative time strings
function getSetRelativeTimeRounding (roundingFunction) {
    if (roundingFunction === undefined) {
        return round;
    }
    if (typeof(roundingFunction) === 'function') {
        round = roundingFunction;
        return true;
    }
    return false;
}

// This function allows you to set a threshold for relative time strings
function getSetRelativeTimeThreshold (threshold, limit) {
    if (thresholds[threshold] === undefined) {
        return false;
    }
    if (limit === undefined) {
        return thresholds[threshold];
    }
    thresholds[threshold] = limit;
    if (threshold === 's') {
        thresholds.ss = limit - 1;
    }
    return true;
}

function humanize (withSuffix) {
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var locale = this.localeData();
    var output = relativeTime$1(this, !withSuffix, locale);

    if (withSuffix) {
        output = locale.pastFuture(+this, output);
    }

    return locale.postformat(output);
}

var abs$1 = Math.abs;

function toISOString$1() {
    // for ISO strings we do not use the normal bubbling rules:
    //  * milliseconds bubble up until they become hours
    //  * days do not bubble at all
    //  * months bubble up until they become years
    // This is because there is no context-free conversion between hours and days
    // (think of clock changes)
    // and also not between days and months (28-31 days per month)
    if (!this.isValid()) {
        return this.localeData().invalidDate();
    }

    var seconds = abs$1(this._milliseconds) / 1000;
    var days         = abs$1(this._days);
    var months       = abs$1(this._months);
    var minutes, hours, years;

    // 3600 seconds -> 60 minutes -> 1 hour
    minutes           = absFloor(seconds / 60);
    hours             = absFloor(minutes / 60);
    seconds %= 60;
    minutes %= 60;

    // 12 months -> 1 year
    years  = absFloor(months / 12);
    months %= 12;


    // inspired by https://github.com/dordille/moment-isoduration/blob/master/moment.isoduration.js
    var Y = years;
    var M = months;
    var D = days;
    var h = hours;
    var m = minutes;
    var s = seconds;
    var total = this.asSeconds();

    if (!total) {
        // this is the same as C#'s (Noda) and python (isodate)...
        // but not other JS (goog.date)
        return 'P0D';
    }

    return (total < 0 ? '-' : '') +
        'P' +
        (Y ? Y + 'Y' : '') +
        (M ? M + 'M' : '') +
        (D ? D + 'D' : '') +
        ((h || m || s) ? 'T' : '') +
        (h ? h + 'H' : '') +
        (m ? m + 'M' : '') +
        (s ? s + 'S' : '');
}

var proto$2 = Duration.prototype;

proto$2.isValid        = isValid$1;
proto$2.abs            = abs;
proto$2.add            = add$1;
proto$2.subtract       = subtract$1;
proto$2.as             = as;
proto$2.asMilliseconds = asMilliseconds;
proto$2.asSeconds      = asSeconds;
proto$2.asMinutes      = asMinutes;
proto$2.asHours        = asHours;
proto$2.asDays         = asDays;
proto$2.asWeeks        = asWeeks;
proto$2.asMonths       = asMonths;
proto$2.asYears        = asYears;
proto$2.valueOf        = valueOf$1;
proto$2._bubble        = bubble;
proto$2.get            = get$2;
proto$2.milliseconds   = milliseconds;
proto$2.seconds        = seconds;
proto$2.minutes        = minutes;
proto$2.hours          = hours;
proto$2.days           = days;
proto$2.weeks          = weeks;
proto$2.months         = months;
proto$2.years          = years;
proto$2.humanize       = humanize;
proto$2.toISOString    = toISOString$1;
proto$2.toString       = toISOString$1;
proto$2.toJSON         = toISOString$1;
proto$2.locale         = locale;
proto$2.localeData     = localeData;

// Deprecations
proto$2.toIsoString = deprecate('toIsoString() is deprecated. Please use toISOString() instead (notice the capitals)', toISOString$1);
proto$2.lang = lang;

// Side effect imports

// FORMATTING

addFormatToken('X', 0, 0, 'unix');
addFormatToken('x', 0, 0, 'valueOf');

// PARSING

addRegexToken('x', matchSigned);
addRegexToken('X', matchTimestamp);
addParseToken('X', function (input, array, config) {
    config._d = new Date(parseFloat(input, 10) * 1000);
});
addParseToken('x', function (input, array, config) {
    config._d = new Date(toInt(input));
});

// Side effect imports


hooks.version = '2.18.1';

setHookCallback(createLocal);

hooks.fn                    = proto;
hooks.min                   = min;
hooks.max                   = max;
hooks.now                   = now;
hooks.utc                   = createUTC;
hooks.unix                  = createUnix;
hooks.months                = listMonths;
hooks.isDate                = isDate;
hooks.locale                = getSetGlobalLocale;
hooks.invalid               = createInvalid;
hooks.duration              = createDuration;
hooks.isMoment              = isMoment;
hooks.weekdays              = listWeekdays;
hooks.parseZone             = createInZone;
hooks.localeData            = getLocale;
hooks.isDuration            = isDuration;
hooks.monthsShort           = listMonthsShort;
hooks.weekdaysMin           = listWeekdaysMin;
hooks.defineLocale          = defineLocale;
hooks.updateLocale          = updateLocale;
hooks.locales               = listLocales;
hooks.weekdaysShort         = listWeekdaysShort;
hooks.normalizeUnits        = normalizeUnits;
hooks.relativeTimeRounding = getSetRelativeTimeRounding;
hooks.relativeTimeThreshold = getSetRelativeTimeThreshold;
hooks.calendarFormat        = getCalendarFormat;
hooks.prototype             = proto;

return hooks;

})));

},{}],7:[function(require,module,exports){
/**
 * @namespace Chart
 */
var Chart = require(29)();

Chart.helpers = require(45);

// @todo dispatch these helpers into appropriated helpers/helpers.* file and write unit tests!
require(27)(Chart);

Chart.defaults = require(25);
Chart.Element = require(26);
Chart.elements = require(40);
Chart.Interaction = require(28);
Chart.platform = require(48);

require(31)(Chart);
require(22)(Chart);
require(23)(Chart);
require(24)(Chart);
require(30)(Chart);
require(33)(Chart);
require(32)(Chart);
require(35)(Chart);

require(54)(Chart);
require(52)(Chart);
require(53)(Chart);
require(55)(Chart);
require(56)(Chart);
require(57)(Chart);

// Controllers must be loaded after elements
// See Chart.core.datasetController.dataElementType
require(15)(Chart);
require(16)(Chart);
require(17)(Chart);
require(18)(Chart);
require(19)(Chart);
require(20)(Chart);
require(21)(Chart);

require(8)(Chart);
require(9)(Chart);
require(10)(Chart);
require(11)(Chart);
require(12)(Chart);
require(13)(Chart);
require(14)(Chart);

// Loading built-it plugins
var plugins = [];

plugins.push(
	require(49)(Chart),
	require(50)(Chart),
	require(51)(Chart)
);

Chart.plugins.register(plugins);

Chart.platform.initialize();

module.exports = Chart;
if (typeof window !== 'undefined') {
	window.Chart = Chart;
}

// DEPRECATIONS

/**
 * Provided for backward compatibility, use Chart.helpers.canvas instead.
 * @namespace Chart.canvasHelpers
 * @deprecated since version 2.6.0
 * @todo remove at version 3
 * @private
 */
Chart.canvasHelpers = Chart.helpers.canvas;

},{"10":10,"11":11,"12":12,"13":13,"14":14,"15":15,"16":16,"17":17,"18":18,"19":19,"20":20,"21":21,"22":22,"23":23,"24":24,"25":25,"26":26,"27":27,"28":28,"29":29,"30":30,"31":31,"32":32,"33":33,"35":35,"40":40,"45":45,"48":48,"49":49,"50":50,"51":51,"52":52,"53":53,"54":54,"55":55,"56":56,"57":57,"8":8,"9":9}],8:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	Chart.Bar = function(context, config) {
		config.type = 'bar';

		return new Chart(context, config);
	};

};

},{}],9:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	Chart.Bubble = function(context, config) {
		config.type = 'bubble';
		return new Chart(context, config);
	};

};

},{}],10:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	Chart.Doughnut = function(context, config) {
		config.type = 'doughnut';

		return new Chart(context, config);
	};

};

},{}],11:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	Chart.Line = function(context, config) {
		config.type = 'line';

		return new Chart(context, config);
	};

};

},{}],12:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	Chart.PolarArea = function(context, config) {
		config.type = 'polarArea';

		return new Chart(context, config);
	};

};

},{}],13:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	Chart.Radar = function(context, config) {
		config.type = 'radar';

		return new Chart(context, config);
	};

};

},{}],14:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {
	Chart.Scatter = function(context, config) {
		config.type = 'scatter';
		return new Chart(context, config);
	};
};

},{}],15:[function(require,module,exports){
'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('bar', {
	hover: {
		mode: 'label'
	},

	scales: {
		xAxes: [{
			type: 'category',

			// Specific to Bar Controller
			categoryPercentage: 0.8,
			barPercentage: 0.9,

			// offset settings
			offset: true,

			// grid line settings
			gridLines: {
				offsetGridLines: true
			}
		}],

		yAxes: [{
			type: 'linear'
		}]
	}
});

defaults._set('horizontalBar', {
	hover: {
		mode: 'index',
		axis: 'y'
	},

	scales: {
		xAxes: [{
			type: 'linear',
			position: 'bottom'
		}],

		yAxes: [{
			position: 'left',
			type: 'category',

			// Specific to Horizontal Bar Controller
			categoryPercentage: 0.8,
			barPercentage: 0.9,

			// offset settings
			offset: true,

			// grid line settings
			gridLines: {
				offsetGridLines: true
			}
		}]
	},

	elements: {
		rectangle: {
			borderSkipped: 'left'
		}
	},

	tooltips: {
		callbacks: {
			title: function(item, data) {
				// Pick first xLabel for now
				var title = '';

				if (item.length > 0) {
					if (item[0].yLabel) {
						title = item[0].yLabel;
					} else if (data.labels.length > 0 && item[0].index < data.labels.length) {
						title = data.labels[item[0].index];
					}
				}

				return title;
			},

			label: function(item, data) {
				var datasetLabel = data.datasets[item.datasetIndex].label || '';
				return datasetLabel + ': ' + item.xLabel;
			}
		},
		mode: 'index',
		axis: 'y'
	}
});

module.exports = function(Chart) {

	Chart.controllers.bar = Chart.DatasetController.extend({

		dataElementType: elements.Rectangle,

		initialize: function() {
			var me = this;
			var meta;

			Chart.DatasetController.prototype.initialize.apply(me, arguments);

			meta = me.getMeta();
			meta.stack = me.getDataset().stack;
			meta.bar = true;
		},

		update: function(reset) {
			var me = this;
			var rects = me.getMeta().data;
			var i, ilen;

			me._ruler = me.getRuler();

			for (i = 0, ilen = rects.length; i < ilen; ++i) {
				me.updateElement(rects[i], i, reset);
			}
		},

		updateElement: function(rectangle, index, reset) {
			var me = this;
			var chart = me.chart;
			var meta = me.getMeta();
			var dataset = me.getDataset();
			var custom = rectangle.custom || {};
			var rectangleOptions = chart.options.elements.rectangle;

			rectangle._xScale = me.getScaleForId(meta.xAxisID);
			rectangle._yScale = me.getScaleForId(meta.yAxisID);
			rectangle._datasetIndex = me.index;
			rectangle._index = index;

			rectangle._model = {
				datasetLabel: dataset.label,
				label: chart.data.labels[index],
				borderSkipped: custom.borderSkipped ? custom.borderSkipped : rectangleOptions.borderSkipped,
				backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleOptions.backgroundColor),
				borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleOptions.borderColor),
				borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleOptions.borderWidth)
			};

			me.updateElementGeometry(rectangle, index, reset);

			rectangle.pivot();
		},

		/**
		 * @private
		 */
		updateElementGeometry: function(rectangle, index, reset) {
			var me = this;
			var model = rectangle._model;
			var vscale = me.getValueScale();
			var base = vscale.getBasePixel();
			var horizontal = vscale.isHorizontal();
			var ruler = me._ruler || me.getRuler();
			var vpixels = me.calculateBarValuePixels(me.index, index);
			var ipixels = me.calculateBarIndexPixels(me.index, index, ruler);

			model.horizontal = horizontal;
			model.base = reset ? base : vpixels.base;
			model.x = horizontal ? reset ? base : vpixels.head : ipixels.center;
			model.y = horizontal ? ipixels.center : reset ? base : vpixels.head;
			model.height = horizontal ? ipixels.size : undefined;
			model.width = horizontal ? undefined : ipixels.size;
		},

		/**
		 * @private
		 */
		getValueScaleId: function() {
			return this.getMeta().yAxisID;
		},

		/**
		 * @private
		 */
		getIndexScaleId: function() {
			return this.getMeta().xAxisID;
		},

		/**
		 * @private
		 */
		getValueScale: function() {
			return this.getScaleForId(this.getValueScaleId());
		},

		/**
		 * @private
		 */
		getIndexScale: function() {
			return this.getScaleForId(this.getIndexScaleId());
		},

		/**
		 * Returns the effective number of stacks based on groups and bar visibility.
		 * @private
		 */
		getStackCount: function(last) {
			var me = this;
			var chart = me.chart;
			var scale = me.getIndexScale();
			var stacked = scale.options.stacked;
			var ilen = last === undefined ? chart.data.datasets.length : last + 1;
			var stacks = [];
			var i, meta;

			for (i = 0; i < ilen; ++i) {
				meta = chart.getDatasetMeta(i);
				if (meta.bar && chart.isDatasetVisible(i) &&
					(stacked === false ||
					(stacked === true && stacks.indexOf(meta.stack) === -1) ||
					(stacked === undefined && (meta.stack === undefined || stacks.indexOf(meta.stack) === -1)))) {
					stacks.push(meta.stack);
				}
			}

			return stacks.length;
		},

		/**
		 * Returns the stack index for the given dataset based on groups and bar visibility.
		 * @private
		 */
		getStackIndex: function(datasetIndex) {
			return this.getStackCount(datasetIndex) - 1;
		},

		/**
		 * @private
		 */
		getRuler: function() {
			var me = this;
			var scale = me.getIndexScale();
			var stackCount = me.getStackCount();
			var datasetIndex = me.index;
			var pixels = [];
			var isHorizontal = scale.isHorizontal();
			var start = isHorizontal ? scale.left : scale.top;
			var end = start + (isHorizontal ? scale.width : scale.height);
			var i, ilen;

			for (i = 0, ilen = me.getMeta().data.length; i < ilen; ++i) {
				pixels.push(scale.getPixelForValue(null, i, datasetIndex));
			}

			return {
				pixels: pixels,
				start: start,
				end: end,
				stackCount: stackCount,
				scale: scale
			};
		},

		/**
		 * Note: pixel values are not clamped to the scale area.
		 * @private
		 */
		calculateBarValuePixels: function(datasetIndex, index) {
			var me = this;
			var chart = me.chart;
			var meta = me.getMeta();
			var scale = me.getValueScale();
			var datasets = chart.data.datasets;
			var value = scale.getRightValue(datasets[datasetIndex].data[index]);
			var stacked = scale.options.stacked;
			var stack = meta.stack;
			var start = 0;
			var i, imeta, ivalue, base, head, size;

			if (stacked || (stacked === undefined && stack !== undefined)) {
				for (i = 0; i < datasetIndex; ++i) {
					imeta = chart.getDatasetMeta(i);

					if (imeta.bar &&
						imeta.stack === stack &&
						imeta.controller.getValueScaleId() === scale.id &&
						chart.isDatasetVisible(i)) {

						ivalue = scale.getRightValue(datasets[i].data[index]);
						if ((value < 0 && ivalue < 0) || (value >= 0 && ivalue > 0)) {
							start += ivalue;
						}
					}
				}
			}

			base = scale.getPixelForValue(start);
			head = scale.getPixelForValue(start + value);
			size = (head - base) / 2;

			return {
				size: size,
				base: base,
				head: head,
				center: head + size / 2
			};
		},

		/**
		 * @private
		 */
		calculateBarIndexPixels: function(datasetIndex, index, ruler) {
			var me = this;
			var options = ruler.scale.options;
			var stackIndex = me.getStackIndex(datasetIndex);
			var pixels = ruler.pixels;
			var base = pixels[index];
			var length = pixels.length;
			var start = ruler.start;
			var end = ruler.end;
			var leftSampleSize, rightSampleSize, leftCategorySize, rightCategorySize, fullBarSize, size;

			if (length === 1) {
				leftSampleSize = base > start ? base - start : end - base;
				rightSampleSize = base < end ? end - base : base - start;
			} else {
				if (index > 0) {
					leftSampleSize = (base - pixels[index - 1]) / 2;
					if (index === length - 1) {
						rightSampleSize = leftSampleSize;
					}
				}
				if (index < length - 1) {
					rightSampleSize = (pixels[index + 1] - base) / 2;
					if (index === 0) {
						leftSampleSize = rightSampleSize;
					}
				}
			}

			leftCategorySize = leftSampleSize * options.categoryPercentage;
			rightCategorySize = rightSampleSize * options.categoryPercentage;
			fullBarSize = (leftCategorySize + rightCategorySize) / ruler.stackCount;
			size = fullBarSize * options.barPercentage;

			size = Math.min(
				helpers.valueOrDefault(options.barThickness, size),
				helpers.valueOrDefault(options.maxBarThickness, Infinity));

			base -= leftCategorySize;
			base += fullBarSize * stackIndex;
			base += (fullBarSize - size) / 2;

			return {
				size: size,
				base: base,
				head: base + size,
				center: base + size / 2
			};
		},

		draw: function() {
			var me = this;
			var chart = me.chart;
			var scale = me.getValueScale();
			var rects = me.getMeta().data;
			var dataset = me.getDataset();
			var ilen = rects.length;
			var i = 0;

			helpers.canvas.clipArea(chart.ctx, chart.chartArea);

			for (; i < ilen; ++i) {
				if (!isNaN(scale.getRightValue(dataset.data[i]))) {
					rects[i].draw();
				}
			}

			helpers.canvas.unclipArea(chart.ctx);
		},

		setHoverStyle: function(rectangle) {
			var dataset = this.chart.data.datasets[rectangle._datasetIndex];
			var index = rectangle._index;
			var custom = rectangle.custom || {};
			var model = rectangle._model;

			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.hoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.hoverBorderColor, index, helpers.getHoverColor(model.borderColor));
			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
		},

		removeHoverStyle: function(rectangle) {
			var dataset = this.chart.data.datasets[rectangle._datasetIndex];
			var index = rectangle._index;
			var custom = rectangle.custom || {};
			var model = rectangle._model;
			var rectangleElementOptions = this.chart.options.elements.rectangle;

			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.backgroundColor, index, rectangleElementOptions.backgroundColor);
			model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.borderColor, index, rectangleElementOptions.borderColor);
			model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.borderWidth, index, rectangleElementOptions.borderWidth);
		}
	});

	Chart.controllers.horizontalBar = Chart.controllers.bar.extend({
		/**
		 * @private
		 */
		getValueScaleId: function() {
			return this.getMeta().xAxisID;
		},

		/**
		 * @private
		 */
		getIndexScaleId: function() {
			return this.getMeta().yAxisID;
		}
	});
};

},{"25":25,"40":40,"45":45}],16:[function(require,module,exports){
'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('bubble', {
	hover: {
		mode: 'single'
	},

	scales: {
		xAxes: [{
			type: 'linear', // bubble should probably use a linear scale by default
			position: 'bottom',
			id: 'x-axis-0' // need an ID so datasets can reference the scale
		}],
		yAxes: [{
			type: 'linear',
			position: 'left',
			id: 'y-axis-0'
		}]
	},

	tooltips: {
		callbacks: {
			title: function() {
				// Title doesn't make sense for scatter since we format the data as a point
				return '';
			},
			label: function(item, data) {
				var datasetLabel = data.datasets[item.datasetIndex].label || '';
				var dataPoint = data.datasets[item.datasetIndex].data[item.index];
				return datasetLabel + ': (' + item.xLabel + ', ' + item.yLabel + ', ' + dataPoint.r + ')';
			}
		}
	}
});


module.exports = function(Chart) {

	Chart.controllers.bubble = Chart.DatasetController.extend({
		/**
		 * @protected
		 */
		dataElementType: elements.Point,

		/**
		 * @protected
		 */
		update: function(reset) {
			var me = this;
			var meta = me.getMeta();
			var points = meta.data;

			// Update Points
			helpers.each(points, function(point, index) {
				me.updateElement(point, index, reset);
			});
		},

		/**
		 * @protected
		 */
		updateElement: function(point, index, reset) {
			var me = this;
			var meta = me.getMeta();
			var custom = point.custom || {};
			var xScale = me.getScaleForId(meta.xAxisID);
			var yScale = me.getScaleForId(meta.yAxisID);
			var options = me._resolveElementOptions(point, index);
			var data = me.getDataset().data[index];
			var dsIndex = me.index;

			var x = reset ? xScale.getPixelForDecimal(0.5) : xScale.getPixelForValue(typeof data === 'object' ? data : NaN, index, dsIndex);
			var y = reset ? yScale.getBasePixel() : yScale.getPixelForValue(data, index, dsIndex);

			point._xScale = xScale;
			point._yScale = yScale;
			point._options = options;
			point._datasetIndex = dsIndex;
			point._index = index;
			point._model = {
				backgroundColor: options.backgroundColor,
				borderColor: options.borderColor,
				borderWidth: options.borderWidth,
				hitRadius: options.hitRadius,
				pointStyle: options.pointStyle,
				radius: reset ? 0 : options.radius,
				skip: custom.skip || isNaN(x) || isNaN(y),
				x: x,
				y: y,
			};

			point.pivot();
		},

		/**
		 * @protected
		 */
		setHoverStyle: function(point) {
			var model = point._model;
			var options = point._options;

			model.backgroundColor = helpers.valueOrDefault(options.hoverBackgroundColor, helpers.getHoverColor(options.backgroundColor));
			model.borderColor = helpers.valueOrDefault(options.hoverBorderColor, helpers.getHoverColor(options.borderColor));
			model.borderWidth = helpers.valueOrDefault(options.hoverBorderWidth, options.borderWidth);
			model.radius = options.radius + options.hoverRadius;
		},

		/**
		 * @protected
		 */
		removeHoverStyle: function(point) {
			var model = point._model;
			var options = point._options;

			model.backgroundColor = options.backgroundColor;
			model.borderColor = options.borderColor;
			model.borderWidth = options.borderWidth;
			model.radius = options.radius;
		},

		/**
		 * @private
		 */
		_resolveElementOptions: function(point, index) {
			var me = this;
			var chart = me.chart;
			var datasets = chart.data.datasets;
			var dataset = datasets[me.index];
			var custom = point.custom || {};
			var options = chart.options.elements.point;
			var resolve = helpers.options.resolve;
			var data = dataset.data[index];
			var values = {};
			var i, ilen, key;

			// Scriptable options
			var context = {
				chart: chart,
				dataIndex: index,
				dataset: dataset,
				datasetIndex: me.index
			};

			var keys = [
				'backgroundColor',
				'borderColor',
				'borderWidth',
				'hoverBackgroundColor',
				'hoverBorderColor',
				'hoverBorderWidth',
				'hoverRadius',
				'hitRadius',
				'pointStyle'
			];

			for (i = 0, ilen = keys.length; i < ilen; ++i) {
				key = keys[i];
				values[key] = resolve([
					custom[key],
					dataset[key],
					options[key]
				], context, index);
			}

			// Custom radius resolution
			values.radius = resolve([
				custom.radius,
				data ? data.r : undefined,
				dataset.radius,
				options.radius
			], context, index);

			return values;
		}
	});
};

},{"25":25,"40":40,"45":45}],17:[function(require,module,exports){
'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('doughnut', {
	animation: {
		// Boolean - Whether we animate the rotation of the Doughnut
		animateRotate: true,
		// Boolean - Whether we animate scaling the Doughnut from the centre
		animateScale: false
	},
	hover: {
		mode: 'single'
	},
	legendCallback: function(chart) {
		var text = [];
		text.push('<ul class="' + chart.id + '-legend">');

		var data = chart.data;
		var datasets = data.datasets;
		var labels = data.labels;

		if (datasets.length) {
			for (var i = 0; i < datasets[0].data.length; ++i) {
				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
				if (labels[i]) {
					text.push(labels[i]);
				}
				text.push('</li>');
			}
		}

		text.push('</ul>');
		return text.join('');
	},
	legend: {
		labels: {
			generateLabels: function(chart) {
				var data = chart.data;
				if (data.labels.length && data.datasets.length) {
					return data.labels.map(function(label, i) {
						var meta = chart.getDatasetMeta(0);
						var ds = data.datasets[0];
						var arc = meta.data[i];
						var custom = arc && arc.custom || {};
						var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
						var arcOpts = chart.options.elements.arc;
						var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
						var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
						var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);

						return {
							text: label,
							fillStyle: fill,
							strokeStyle: stroke,
							lineWidth: bw,
							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,

							// Extra data used for toggling the correct item
							index: i
						};
					});
				}
				return [];
			}
		},

		onClick: function(e, legendItem) {
			var index = legendItem.index;
			var chart = this.chart;
			var i, ilen, meta;

			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
				meta = chart.getDatasetMeta(i);
				// toggle visibility of index if exists
				if (meta.data[index]) {
					meta.data[index].hidden = !meta.data[index].hidden;
				}
			}

			chart.update();
		}
	},

	// The percentage of the chart that we cut out of the middle.
	cutoutPercentage: 50,

	// The rotation of the chart, where the first data arc begins.
	rotation: Math.PI * -0.5,

	// The total circumference of the chart.
	circumference: Math.PI * 2.0,

	// Need to override these to give a nice default
	tooltips: {
		callbacks: {
			title: function() {
				return '';
			},
			label: function(tooltipItem, data) {
				var dataLabel = data.labels[tooltipItem.index];
				var value = ': ' + data.datasets[tooltipItem.datasetIndex].data[tooltipItem.index];

				if (helpers.isArray(dataLabel)) {
					// show value on first line of multiline label
					// need to clone because we are changing the value
					dataLabel = dataLabel.slice();
					dataLabel[0] += value;
				} else {
					dataLabel += value;
				}

				return dataLabel;
			}
		}
	}
});

defaults._set('pie', helpers.clone(defaults.doughnut));
defaults._set('pie', {
	cutoutPercentage: 0
});

module.exports = function(Chart) {

	Chart.controllers.doughnut = Chart.controllers.pie = Chart.DatasetController.extend({

		dataElementType: elements.Arc,

		linkScales: helpers.noop,

		// Get index of the dataset in relation to the visible datasets. This allows determining the inner and outer radius correctly
		getRingIndex: function(datasetIndex) {
			var ringIndex = 0;

			for (var j = 0; j < datasetIndex; ++j) {
				if (this.chart.isDatasetVisible(j)) {
					++ringIndex;
				}
			}

			return ringIndex;
		},

		update: function(reset) {
			var me = this;
			var chart = me.chart;
			var chartArea = chart.chartArea;
			var opts = chart.options;
			var arcOpts = opts.elements.arc;
			var availableWidth = chartArea.right - chartArea.left - arcOpts.borderWidth;
			var availableHeight = chartArea.bottom - chartArea.top - arcOpts.borderWidth;
			var minSize = Math.min(availableWidth, availableHeight);
			var offset = {x: 0, y: 0};
			var meta = me.getMeta();
			var cutoutPercentage = opts.cutoutPercentage;
			var circumference = opts.circumference;

			// If the chart's circumference isn't a full circle, calculate minSize as a ratio of the width/height of the arc
			if (circumference < Math.PI * 2.0) {
				var startAngle = opts.rotation % (Math.PI * 2.0);
				startAngle += Math.PI * 2.0 * (startAngle >= Math.PI ? -1 : startAngle < -Math.PI ? 1 : 0);
				var endAngle = startAngle + circumference;
				var start = {x: Math.cos(startAngle), y: Math.sin(startAngle)};
				var end = {x: Math.cos(endAngle), y: Math.sin(endAngle)};
				var contains0 = (startAngle <= 0 && endAngle >= 0) || (startAngle <= Math.PI * 2.0 && Math.PI * 2.0 <= endAngle);
				var contains90 = (startAngle <= Math.PI * 0.5 && Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 2.5 && Math.PI * 2.5 <= endAngle);
				var contains180 = (startAngle <= -Math.PI && -Math.PI <= endAngle) || (startAngle <= Math.PI && Math.PI <= endAngle);
				var contains270 = (startAngle <= -Math.PI * 0.5 && -Math.PI * 0.5 <= endAngle) || (startAngle <= Math.PI * 1.5 && Math.PI * 1.5 <= endAngle);
				var cutout = cutoutPercentage / 100.0;
				var min = {x: contains180 ? -1 : Math.min(start.x * (start.x < 0 ? 1 : cutout), end.x * (end.x < 0 ? 1 : cutout)), y: contains270 ? -1 : Math.min(start.y * (start.y < 0 ? 1 : cutout), end.y * (end.y < 0 ? 1 : cutout))};
				var max = {x: contains0 ? 1 : Math.max(start.x * (start.x > 0 ? 1 : cutout), end.x * (end.x > 0 ? 1 : cutout)), y: contains90 ? 1 : Math.max(start.y * (start.y > 0 ? 1 : cutout), end.y * (end.y > 0 ? 1 : cutout))};
				var size = {width: (max.x - min.x) * 0.5, height: (max.y - min.y) * 0.5};
				minSize = Math.min(availableWidth / size.width, availableHeight / size.height);
				offset = {x: (max.x + min.x) * -0.5, y: (max.y + min.y) * -0.5};
			}

			chart.borderWidth = me.getMaxBorderWidth(meta.data);
			chart.outerRadius = Math.max((minSize - chart.borderWidth) / 2, 0);
			chart.innerRadius = Math.max(cutoutPercentage ? (chart.outerRadius / 100) * (cutoutPercentage) : 0, 0);
			chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();
			chart.offsetX = offset.x * chart.outerRadius;
			chart.offsetY = offset.y * chart.outerRadius;

			meta.total = me.calculateTotal();

			me.outerRadius = chart.outerRadius - (chart.radiusLength * me.getRingIndex(me.index));
			me.innerRadius = Math.max(me.outerRadius - chart.radiusLength, 0);

			helpers.each(meta.data, function(arc, index) {
				me.updateElement(arc, index, reset);
			});
		},

		updateElement: function(arc, index, reset) {
			var me = this;
			var chart = me.chart;
			var chartArea = chart.chartArea;
			var opts = chart.options;
			var animationOpts = opts.animation;
			var centerX = (chartArea.left + chartArea.right) / 2;
			var centerY = (chartArea.top + chartArea.bottom) / 2;
			var startAngle = opts.rotation; // non reset case handled later
			var endAngle = opts.rotation; // non reset case handled later
			var dataset = me.getDataset();
			var circumference = reset && animationOpts.animateRotate ? 0 : arc.hidden ? 0 : me.calculateCircumference(dataset.data[index]) * (opts.circumference / (2.0 * Math.PI));
			var innerRadius = reset && animationOpts.animateScale ? 0 : me.innerRadius;
			var outerRadius = reset && animationOpts.animateScale ? 0 : me.outerRadius;
			var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;

			helpers.extend(arc, {
				// Utility
				_datasetIndex: me.index,
				_index: index,

				// Desired view properties
				_model: {
					x: centerX + chart.offsetX,
					y: centerY + chart.offsetY,
					startAngle: startAngle,
					endAngle: endAngle,
					circumference: circumference,
					outerRadius: outerRadius,
					innerRadius: innerRadius,
					label: valueAtIndexOrDefault(dataset.label, index, chart.data.labels[index])
				}
			});

			var model = arc._model;
			// Resets the visual styles
			this.removeHoverStyle(arc);

			// Set correct angles if not resetting
			if (!reset || !animationOpts.animateRotate) {
				if (index === 0) {
					model.startAngle = opts.rotation;
				} else {
					model.startAngle = me.getMeta().data[index - 1]._model.endAngle;
				}

				model.endAngle = model.startAngle + model.circumference;
			}

			arc.pivot();
		},

		removeHoverStyle: function(arc) {
			Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
		},

		calculateTotal: function() {
			var dataset = this.getDataset();
			var meta = this.getMeta();
			var total = 0;
			var value;

			helpers.each(meta.data, function(element, index) {
				value = dataset.data[index];
				if (!isNaN(value) && !element.hidden) {
					total += Math.abs(value);
				}
			});

			/* if (total === 0) {
				total = NaN;
			}*/

			return total;
		},

		calculateCircumference: function(value) {
			var total = this.getMeta().total;
			if (total > 0 && !isNaN(value)) {
				return (Math.PI * 2.0) * (value / total);
			}
			return 0;
		},

		// gets the max border or hover width to properly scale pie charts
		getMaxBorderWidth: function(arcs) {
			var max = 0;
			var index = this.index;
			var length = arcs.length;
			var borderWidth;
			var hoverWidth;

			for (var i = 0; i < length; i++) {
				borderWidth = arcs[i]._model ? arcs[i]._model.borderWidth : 0;
				hoverWidth = arcs[i]._chart ? arcs[i]._chart.config.data.datasets[index].hoverBorderWidth : 0;

				max = borderWidth > max ? borderWidth : max;
				max = hoverWidth > max ? hoverWidth : max;
			}
			return max;
		}
	});
};

},{"25":25,"40":40,"45":45}],18:[function(require,module,exports){
'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('line', {
	showLines: true,
	spanGaps: false,

	hover: {
		mode: 'label'
	},

	scales: {
		xAxes: [{
			type: 'category',
			id: 'x-axis-0'
		}],
		yAxes: [{
			type: 'linear',
			id: 'y-axis-0'
		}]
	}
});

module.exports = function(Chart) {

	function lineEnabled(dataset, options) {
		return helpers.valueOrDefault(dataset.showLine, options.showLines);
	}

	Chart.controllers.line = Chart.DatasetController.extend({

		datasetElementType: elements.Line,

		dataElementType: elements.Point,

		update: function(reset) {
			var me = this;
			var meta = me.getMeta();
			var line = meta.dataset;
			var points = meta.data || [];
			var options = me.chart.options;
			var lineElementOptions = options.elements.line;
			var scale = me.getScaleForId(meta.yAxisID);
			var i, ilen, custom;
			var dataset = me.getDataset();
			var showLine = lineEnabled(dataset, options);

			// Update Line
			if (showLine) {
				custom = line.custom || {};

				// Compatibility: If the properties are defined with only the old name, use those values
				if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
					dataset.lineTension = dataset.tension;
				}

				// Utility
				line._scale = scale;
				line._datasetIndex = me.index;
				// Data
				line._children = points;
				// Model
				line._model = {
					// Appearance
					// The default behavior of lines is to break at null values, according
					// to https://github.com/chartjs/Chart.js/issues/2435#issuecomment-216718158
					// This option gives lines the ability to span gaps
					spanGaps: dataset.spanGaps ? dataset.spanGaps : options.spanGaps,
					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
					backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
					borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
					borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
					borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
					borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
					borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
					borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
					fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
					steppedLine: custom.steppedLine ? custom.steppedLine : helpers.valueOrDefault(dataset.steppedLine, lineElementOptions.stepped),
					cubicInterpolationMode: custom.cubicInterpolationMode ? custom.cubicInterpolationMode : helpers.valueOrDefault(dataset.cubicInterpolationMode, lineElementOptions.cubicInterpolationMode),
				};

				line.pivot();
			}

			// Update Points
			for (i = 0, ilen = points.length; i < ilen; ++i) {
				me.updateElement(points[i], i, reset);
			}

			if (showLine && line._model.tension !== 0) {
				me.updateBezierControlPoints();
			}

			// Now pivot the point for animation
			for (i = 0, ilen = points.length; i < ilen; ++i) {
				points[i].pivot();
			}
		},

		getPointBackgroundColor: function(point, index) {
			var backgroundColor = this.chart.options.elements.point.backgroundColor;
			var dataset = this.getDataset();
			var custom = point.custom || {};

			if (custom.backgroundColor) {
				backgroundColor = custom.backgroundColor;
			} else if (dataset.pointBackgroundColor) {
				backgroundColor = helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, backgroundColor);
			} else if (dataset.backgroundColor) {
				backgroundColor = dataset.backgroundColor;
			}

			return backgroundColor;
		},

		getPointBorderColor: function(point, index) {
			var borderColor = this.chart.options.elements.point.borderColor;
			var dataset = this.getDataset();
			var custom = point.custom || {};

			if (custom.borderColor) {
				borderColor = custom.borderColor;
			} else if (dataset.pointBorderColor) {
				borderColor = helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, borderColor);
			} else if (dataset.borderColor) {
				borderColor = dataset.borderColor;
			}

			return borderColor;
		},

		getPointBorderWidth: function(point, index) {
			var borderWidth = this.chart.options.elements.point.borderWidth;
			var dataset = this.getDataset();
			var custom = point.custom || {};

			if (!isNaN(custom.borderWidth)) {
				borderWidth = custom.borderWidth;
			} else if (!isNaN(dataset.pointBorderWidth) || helpers.isArray(dataset.pointBorderWidth)) {
				borderWidth = helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, borderWidth);
			} else if (!isNaN(dataset.borderWidth)) {
				borderWidth = dataset.borderWidth;
			}

			return borderWidth;
		},

		updateElement: function(point, index, reset) {
			var me = this;
			var meta = me.getMeta();
			var custom = point.custom || {};
			var dataset = me.getDataset();
			var datasetIndex = me.index;
			var value = dataset.data[index];
			var yScale = me.getScaleForId(meta.yAxisID);
			var xScale = me.getScaleForId(meta.xAxisID);
			var pointOptions = me.chart.options.elements.point;
			var x, y;

			// Compatibility: If the properties are defined with only the old name, use those values
			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
				dataset.pointRadius = dataset.radius;
			}
			if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
				dataset.pointHitRadius = dataset.hitRadius;
			}

			x = xScale.getPixelForValue(typeof value === 'object' ? value : NaN, index, datasetIndex);
			y = reset ? yScale.getBasePixel() : me.calculatePointY(value, index, datasetIndex);

			// Utility
			point._xScale = xScale;
			point._yScale = yScale;
			point._datasetIndex = datasetIndex;
			point._index = index;

			// Desired view properties
			point._model = {
				x: x,
				y: y,
				skip: custom.skip || isNaN(x) || isNaN(y),
				// Appearance
				radius: custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointOptions.radius),
				pointStyle: custom.pointStyle || helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointOptions.pointStyle),
				backgroundColor: me.getPointBackgroundColor(point, index),
				borderColor: me.getPointBorderColor(point, index),
				borderWidth: me.getPointBorderWidth(point, index),
				tension: meta.dataset._model ? meta.dataset._model.tension : 0,
				steppedLine: meta.dataset._model ? meta.dataset._model.steppedLine : false,
				// Tooltip
				hitRadius: custom.hitRadius || helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointOptions.hitRadius)
			};
		},

		calculatePointY: function(value, index, datasetIndex) {
			var me = this;
			var chart = me.chart;
			var meta = me.getMeta();
			var yScale = me.getScaleForId(meta.yAxisID);
			var sumPos = 0;
			var sumNeg = 0;
			var i, ds, dsMeta;

			if (yScale.options.stacked) {
				for (i = 0; i < datasetIndex; i++) {
					ds = chart.data.datasets[i];
					dsMeta = chart.getDatasetMeta(i);
					if (dsMeta.type === 'line' && dsMeta.yAxisID === yScale.id && chart.isDatasetVisible(i)) {
						var stackedRightValue = Number(yScale.getRightValue(ds.data[index]));
						if (stackedRightValue < 0) {
							sumNeg += stackedRightValue || 0;
						} else {
							sumPos += stackedRightValue || 0;
						}
					}
				}

				var rightValue = Number(yScale.getRightValue(value));
				if (rightValue < 0) {
					return yScale.getPixelForValue(sumNeg + rightValue);
				}
				return yScale.getPixelForValue(sumPos + rightValue);
			}

			return yScale.getPixelForValue(value);
		},

		updateBezierControlPoints: function() {
			var me = this;
			var meta = me.getMeta();
			var area = me.chart.chartArea;
			var points = (meta.data || []);
			var i, ilen, point, model, controlPoints;

			// Only consider points that are drawn in case the spanGaps option is used
			if (meta.dataset._model.spanGaps) {
				points = points.filter(function(pt) {
					return !pt._model.skip;
				});
			}

			function capControlPoint(pt, min, max) {
				return Math.max(Math.min(pt, max), min);
			}

			if (meta.dataset._model.cubicInterpolationMode === 'monotone') {
				helpers.splineCurveMonotone(points);
			} else {
				for (i = 0, ilen = points.length; i < ilen; ++i) {
					point = points[i];
					model = point._model;
					controlPoints = helpers.splineCurve(
						helpers.previousItem(points, i)._model,
						model,
						helpers.nextItem(points, i)._model,
						meta.dataset._model.tension
					);
					model.controlPointPreviousX = controlPoints.previous.x;
					model.controlPointPreviousY = controlPoints.previous.y;
					model.controlPointNextX = controlPoints.next.x;
					model.controlPointNextY = controlPoints.next.y;
				}
			}

			if (me.chart.options.elements.line.capBezierPoints) {
				for (i = 0, ilen = points.length; i < ilen; ++i) {
					model = points[i]._model;
					model.controlPointPreviousX = capControlPoint(model.controlPointPreviousX, area.left, area.right);
					model.controlPointPreviousY = capControlPoint(model.controlPointPreviousY, area.top, area.bottom);
					model.controlPointNextX = capControlPoint(model.controlPointNextX, area.left, area.right);
					model.controlPointNextY = capControlPoint(model.controlPointNextY, area.top, area.bottom);
				}
			}
		},

		draw: function() {
			var me = this;
			var chart = me.chart;
			var meta = me.getMeta();
			var points = meta.data || [];
			var area = chart.chartArea;
			var ilen = points.length;
			var i = 0;

			helpers.canvas.clipArea(chart.ctx, area);

			if (lineEnabled(me.getDataset(), chart.options)) {
				meta.dataset.draw();
			}

			helpers.canvas.unclipArea(chart.ctx);

			// Draw the points
			for (; i < ilen; ++i) {
				points[i].draw(area);
			}
		},

		setHoverStyle: function(point) {
			// Point
			var dataset = this.chart.data.datasets[point._datasetIndex];
			var index = point._index;
			var custom = point.custom || {};
			var model = point._model;

			model.radius = custom.hoverRadius || helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
			model.backgroundColor = custom.hoverBackgroundColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
			model.borderColor = custom.hoverBorderColor || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
			model.borderWidth = custom.hoverBorderWidth || helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
		},

		removeHoverStyle: function(point) {
			var me = this;
			var dataset = me.chart.data.datasets[point._datasetIndex];
			var index = point._index;
			var custom = point.custom || {};
			var model = point._model;

			// Compatibility: If the properties are defined with only the old name, use those values
			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
				dataset.pointRadius = dataset.radius;
			}

			model.radius = custom.radius || helpers.valueAtIndexOrDefault(dataset.pointRadius, index, me.chart.options.elements.point.radius);
			model.backgroundColor = me.getPointBackgroundColor(point, index);
			model.borderColor = me.getPointBorderColor(point, index);
			model.borderWidth = me.getPointBorderWidth(point, index);
		}
	});
};

},{"25":25,"40":40,"45":45}],19:[function(require,module,exports){
'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('polarArea', {
	scale: {
		type: 'radialLinear',
		angleLines: {
			display: false
		},
		gridLines: {
			circular: true
		},
		pointLabels: {
			display: false
		},
		ticks: {
			beginAtZero: true
		}
	},

	// Boolean - Whether to animate the rotation of the chart
	animation: {
		animateRotate: true,
		animateScale: true
	},

	startAngle: -0.5 * Math.PI,
	legendCallback: function(chart) {
		var text = [];
		text.push('<ul class="' + chart.id + '-legend">');

		var data = chart.data;
		var datasets = data.datasets;
		var labels = data.labels;

		if (datasets.length) {
			for (var i = 0; i < datasets[0].data.length; ++i) {
				text.push('<li><span style="background-color:' + datasets[0].backgroundColor[i] + '"></span>');
				if (labels[i]) {
					text.push(labels[i]);
				}
				text.push('</li>');
			}
		}

		text.push('</ul>');
		return text.join('');
	},
	legend: {
		labels: {
			generateLabels: function(chart) {
				var data = chart.data;
				if (data.labels.length && data.datasets.length) {
					return data.labels.map(function(label, i) {
						var meta = chart.getDatasetMeta(0);
						var ds = data.datasets[0];
						var arc = meta.data[i];
						var custom = arc.custom || {};
						var valueAtIndexOrDefault = helpers.valueAtIndexOrDefault;
						var arcOpts = chart.options.elements.arc;
						var fill = custom.backgroundColor ? custom.backgroundColor : valueAtIndexOrDefault(ds.backgroundColor, i, arcOpts.backgroundColor);
						var stroke = custom.borderColor ? custom.borderColor : valueAtIndexOrDefault(ds.borderColor, i, arcOpts.borderColor);
						var bw = custom.borderWidth ? custom.borderWidth : valueAtIndexOrDefault(ds.borderWidth, i, arcOpts.borderWidth);

						return {
							text: label,
							fillStyle: fill,
							strokeStyle: stroke,
							lineWidth: bw,
							hidden: isNaN(ds.data[i]) || meta.data[i].hidden,

							// Extra data used for toggling the correct item
							index: i
						};
					});
				}
				return [];
			}
		},

		onClick: function(e, legendItem) {
			var index = legendItem.index;
			var chart = this.chart;
			var i, ilen, meta;

			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
				meta = chart.getDatasetMeta(i);
				meta.data[index].hidden = !meta.data[index].hidden;
			}

			chart.update();
		}
	},

	// Need to override these to give a nice default
	tooltips: {
		callbacks: {
			title: function() {
				return '';
			},
			label: function(item, data) {
				return data.labels[item.index] + ': ' + item.yLabel;
			}
		}
	}
});

module.exports = function(Chart) {

	Chart.controllers.polarArea = Chart.DatasetController.extend({

		dataElementType: elements.Arc,

		linkScales: helpers.noop,

		update: function(reset) {
			var me = this;
			var chart = me.chart;
			var chartArea = chart.chartArea;
			var meta = me.getMeta();
			var opts = chart.options;
			var arcOpts = opts.elements.arc;
			var minSize = Math.min(chartArea.right - chartArea.left, chartArea.bottom - chartArea.top);
			chart.outerRadius = Math.max((minSize - arcOpts.borderWidth / 2) / 2, 0);
			chart.innerRadius = Math.max(opts.cutoutPercentage ? (chart.outerRadius / 100) * (opts.cutoutPercentage) : 1, 0);
			chart.radiusLength = (chart.outerRadius - chart.innerRadius) / chart.getVisibleDatasetCount();

			me.outerRadius = chart.outerRadius - (chart.radiusLength * me.index);
			me.innerRadius = me.outerRadius - chart.radiusLength;

			meta.count = me.countVisibleElements();

			helpers.each(meta.data, function(arc, index) {
				me.updateElement(arc, index, reset);
			});
		},

		updateElement: function(arc, index, reset) {
			var me = this;
			var chart = me.chart;
			var dataset = me.getDataset();
			var opts = chart.options;
			var animationOpts = opts.animation;
			var scale = chart.scale;
			var labels = chart.data.labels;

			var circumference = me.calculateCircumference(dataset.data[index]);
			var centerX = scale.xCenter;
			var centerY = scale.yCenter;

			// If there is NaN data before us, we need to calculate the starting angle correctly.
			// We could be way more efficient here, but its unlikely that the polar area chart will have a lot of data
			var visibleCount = 0;
			var meta = me.getMeta();
			for (var i = 0; i < index; ++i) {
				if (!isNaN(dataset.data[i]) && !meta.data[i].hidden) {
					++visibleCount;
				}
			}

			// var negHalfPI = -0.5 * Math.PI;
			var datasetStartAngle = opts.startAngle;
			var distance = arc.hidden ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);
			var startAngle = datasetStartAngle + (circumference * visibleCount);
			var endAngle = startAngle + (arc.hidden ? 0 : circumference);

			var resetRadius = animationOpts.animateScale ? 0 : scale.getDistanceFromCenterForValue(dataset.data[index]);

			helpers.extend(arc, {
				// Utility
				_datasetIndex: me.index,
				_index: index,
				_scale: scale,

				// Desired view properties
				_model: {
					x: centerX,
					y: centerY,
					innerRadius: 0,
					outerRadius: reset ? resetRadius : distance,
					startAngle: reset && animationOpts.animateRotate ? datasetStartAngle : startAngle,
					endAngle: reset && animationOpts.animateRotate ? datasetStartAngle : endAngle,
					label: helpers.valueAtIndexOrDefault(labels, index, labels[index])
				}
			});

			// Apply border and fill style
			me.removeHoverStyle(arc);

			arc.pivot();
		},

		removeHoverStyle: function(arc) {
			Chart.DatasetController.prototype.removeHoverStyle.call(this, arc, this.chart.options.elements.arc);
		},

		countVisibleElements: function() {
			var dataset = this.getDataset();
			var meta = this.getMeta();
			var count = 0;

			helpers.each(meta.data, function(element, index) {
				if (!isNaN(dataset.data[index]) && !element.hidden) {
					count++;
				}
			});

			return count;
		},

		calculateCircumference: function(value) {
			var count = this.getMeta().count;
			if (count > 0 && !isNaN(value)) {
				return (2 * Math.PI) / count;
			}
			return 0;
		}
	});
};

},{"25":25,"40":40,"45":45}],20:[function(require,module,exports){
'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('radar', {
	scale: {
		type: 'radialLinear'
	},
	elements: {
		line: {
			tension: 0 // no bezier in radar
		}
	}
});

module.exports = function(Chart) {

	Chart.controllers.radar = Chart.DatasetController.extend({

		datasetElementType: elements.Line,

		dataElementType: elements.Point,

		linkScales: helpers.noop,

		update: function(reset) {
			var me = this;
			var meta = me.getMeta();
			var line = meta.dataset;
			var points = meta.data;
			var custom = line.custom || {};
			var dataset = me.getDataset();
			var lineElementOptions = me.chart.options.elements.line;
			var scale = me.chart.scale;

			// Compatibility: If the properties are defined with only the old name, use those values
			if ((dataset.tension !== undefined) && (dataset.lineTension === undefined)) {
				dataset.lineTension = dataset.tension;
			}

			helpers.extend(meta.dataset, {
				// Utility
				_datasetIndex: me.index,
				_scale: scale,
				// Data
				_children: points,
				_loop: true,
				// Model
				_model: {
					// Appearance
					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, lineElementOptions.tension),
					backgroundColor: custom.backgroundColor ? custom.backgroundColor : (dataset.backgroundColor || lineElementOptions.backgroundColor),
					borderWidth: custom.borderWidth ? custom.borderWidth : (dataset.borderWidth || lineElementOptions.borderWidth),
					borderColor: custom.borderColor ? custom.borderColor : (dataset.borderColor || lineElementOptions.borderColor),
					fill: custom.fill ? custom.fill : (dataset.fill !== undefined ? dataset.fill : lineElementOptions.fill),
					borderCapStyle: custom.borderCapStyle ? custom.borderCapStyle : (dataset.borderCapStyle || lineElementOptions.borderCapStyle),
					borderDash: custom.borderDash ? custom.borderDash : (dataset.borderDash || lineElementOptions.borderDash),
					borderDashOffset: custom.borderDashOffset ? custom.borderDashOffset : (dataset.borderDashOffset || lineElementOptions.borderDashOffset),
					borderJoinStyle: custom.borderJoinStyle ? custom.borderJoinStyle : (dataset.borderJoinStyle || lineElementOptions.borderJoinStyle),
				}
			});

			meta.dataset.pivot();

			// Update Points
			helpers.each(points, function(point, index) {
				me.updateElement(point, index, reset);
			}, me);

			// Update bezier control points
			me.updateBezierControlPoints();
		},
		updateElement: function(point, index, reset) {
			var me = this;
			var custom = point.custom || {};
			var dataset = me.getDataset();
			var scale = me.chart.scale;
			var pointElementOptions = me.chart.options.elements.point;
			var pointPosition = scale.getPointPositionForValue(index, dataset.data[index]);

			// Compatibility: If the properties are defined with only the old name, use those values
			if ((dataset.radius !== undefined) && (dataset.pointRadius === undefined)) {
				dataset.pointRadius = dataset.radius;
			}
			if ((dataset.hitRadius !== undefined) && (dataset.pointHitRadius === undefined)) {
				dataset.pointHitRadius = dataset.hitRadius;
			}

			helpers.extend(point, {
				// Utility
				_datasetIndex: me.index,
				_index: index,
				_scale: scale,

				// Desired view properties
				_model: {
					x: reset ? scale.xCenter : pointPosition.x, // value not used in dataset scale, but we want a consistent API between scales
					y: reset ? scale.yCenter : pointPosition.y,

					// Appearance
					tension: custom.tension ? custom.tension : helpers.valueOrDefault(dataset.lineTension, me.chart.options.elements.line.tension),
					radius: custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius),
					backgroundColor: custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor),
					borderColor: custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor),
					borderWidth: custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth),
					pointStyle: custom.pointStyle ? custom.pointStyle : helpers.valueAtIndexOrDefault(dataset.pointStyle, index, pointElementOptions.pointStyle),

					// Tooltip
					hitRadius: custom.hitRadius ? custom.hitRadius : helpers.valueAtIndexOrDefault(dataset.pointHitRadius, index, pointElementOptions.hitRadius)
				}
			});

			point._model.skip = custom.skip ? custom.skip : (isNaN(point._model.x) || isNaN(point._model.y));
		},
		updateBezierControlPoints: function() {
			var chartArea = this.chart.chartArea;
			var meta = this.getMeta();

			helpers.each(meta.data, function(point, index) {
				var model = point._model;
				var controlPoints = helpers.splineCurve(
					helpers.previousItem(meta.data, index, true)._model,
					model,
					helpers.nextItem(meta.data, index, true)._model,
					model.tension
				);

				// Prevent the bezier going outside of the bounds of the graph
				model.controlPointPreviousX = Math.max(Math.min(controlPoints.previous.x, chartArea.right), chartArea.left);
				model.controlPointPreviousY = Math.max(Math.min(controlPoints.previous.y, chartArea.bottom), chartArea.top);

				model.controlPointNextX = Math.max(Math.min(controlPoints.next.x, chartArea.right), chartArea.left);
				model.controlPointNextY = Math.max(Math.min(controlPoints.next.y, chartArea.bottom), chartArea.top);

				// Now pivot the point for animation
				point.pivot();
			});
		},

		setHoverStyle: function(point) {
			// Point
			var dataset = this.chart.data.datasets[point._datasetIndex];
			var custom = point.custom || {};
			var index = point._index;
			var model = point._model;

			model.radius = custom.hoverRadius ? custom.hoverRadius : helpers.valueAtIndexOrDefault(dataset.pointHoverRadius, index, this.chart.options.elements.point.hoverRadius);
			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBackgroundColor, index, helpers.getHoverColor(model.backgroundColor));
			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderColor, index, helpers.getHoverColor(model.borderColor));
			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : helpers.valueAtIndexOrDefault(dataset.pointHoverBorderWidth, index, model.borderWidth);
		},

		removeHoverStyle: function(point) {
			var dataset = this.chart.data.datasets[point._datasetIndex];
			var custom = point.custom || {};
			var index = point._index;
			var model = point._model;
			var pointElementOptions = this.chart.options.elements.point;

			model.radius = custom.radius ? custom.radius : helpers.valueAtIndexOrDefault(dataset.pointRadius, index, pointElementOptions.radius);
			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : helpers.valueAtIndexOrDefault(dataset.pointBackgroundColor, index, pointElementOptions.backgroundColor);
			model.borderColor = custom.borderColor ? custom.borderColor : helpers.valueAtIndexOrDefault(dataset.pointBorderColor, index, pointElementOptions.borderColor);
			model.borderWidth = custom.borderWidth ? custom.borderWidth : helpers.valueAtIndexOrDefault(dataset.pointBorderWidth, index, pointElementOptions.borderWidth);
		}
	});
};

},{"25":25,"40":40,"45":45}],21:[function(require,module,exports){
'use strict';

var defaults = require(25);

defaults._set('scatter', {
	hover: {
		mode: 'single'
	},

	scales: {
		xAxes: [{
			id: 'x-axis-1',    // need an ID so datasets can reference the scale
			type: 'linear',    // scatter should not use a category axis
			position: 'bottom'
		}],
		yAxes: [{
			id: 'y-axis-1',
			type: 'linear',
			position: 'left'
		}]
	},

	showLines: false,

	tooltips: {
		callbacks: {
			title: function() {
				return '';     // doesn't make sense for scatter since data are formatted as a point
			},
			label: function(item) {
				return '(' + item.xLabel + ', ' + item.yLabel + ')';
			}
		}
	}
});

module.exports = function(Chart) {

	// Scatter charts use line controllers
	Chart.controllers.scatter = Chart.controllers.line;

};

},{"25":25}],22:[function(require,module,exports){
/* global window: false */
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

defaults._set('global', {
	animation: {
		duration: 1000,
		easing: 'easeOutQuart',
		onProgress: helpers.noop,
		onComplete: helpers.noop
	}
});

module.exports = function(Chart) {

	Chart.Animation = Element.extend({
		chart: null, // the animation associated chart instance
		currentStep: 0, // the current animation step
		numSteps: 60, // default number of steps
		easing: '', // the easing to use for this animation
		render: null, // render function used by the animation service

		onAnimationProgress: null, // user specified callback to fire on each step of the animation
		onAnimationComplete: null, // user specified callback to fire when the animation finishes
	});

	Chart.animationService = {
		frameDuration: 17,
		animations: [],
		dropFrames: 0,
		request: null,

		/**
		 * @param {Chart} chart - The chart to animate.
		 * @param {Chart.Animation} animation - The animation that we will animate.
		 * @param {Number} duration - The animation duration in ms.
		 * @param {Boolean} lazy - if true, the chart is not marked as animating to enable more responsive interactions
		 */
		addAnimation: function(chart, animation, duration, lazy) {
			var animations = this.animations;
			var i, ilen;

			animation.chart = chart;

			if (!lazy) {
				chart.animating = true;
			}

			for (i = 0, ilen = animations.length; i < ilen; ++i) {
				if (animations[i].chart === chart) {
					animations[i] = animation;
					return;
				}
			}

			animations.push(animation);

			// If there are no animations queued, manually kickstart a digest, for lack of a better word
			if (animations.length === 1) {
				this.requestAnimationFrame();
			}
		},

		cancelAnimation: function(chart) {
			var index = helpers.findIndex(this.animations, function(animation) {
				return animation.chart === chart;
			});

			if (index !== -1) {
				this.animations.splice(index, 1);
				chart.animating = false;
			}
		},

		requestAnimationFrame: function() {
			var me = this;
			if (me.request === null) {
				// Skip animation frame requests until the active one is executed.
				// This can happen when processing mouse events, e.g. 'mousemove'
				// and 'mouseout' events will trigger multiple renders.
				me.request = helpers.requestAnimFrame.call(window, function() {
					me.request = null;
					me.startDigest();
				});
			}
		},

		/**
		 * @private
		 */
		startDigest: function() {
			var me = this;
			var startTime = Date.now();
			var framesToDrop = 0;

			if (me.dropFrames > 1) {
				framesToDrop = Math.floor(me.dropFrames);
				me.dropFrames = me.dropFrames % 1;
			}

			me.advance(1 + framesToDrop);

			var endTime = Date.now();

			me.dropFrames += (endTime - startTime) / me.frameDuration;

			// Do we have more stuff to animate?
			if (me.animations.length > 0) {
				me.requestAnimationFrame();
			}
		},

		/**
		 * @private
		 */
		advance: function(count) {
			var animations = this.animations;
			var animation, chart;
			var i = 0;

			while (i < animations.length) {
				animation = animations[i];
				chart = animation.chart;

				animation.currentStep = (animation.currentStep || 0) + count;
				animation.currentStep = Math.min(animation.currentStep, animation.numSteps);

				helpers.callback(animation.render, [chart, animation], chart);
				helpers.callback(animation.onAnimationProgress, [animation], chart);

				if (animation.currentStep >= animation.numSteps) {
					helpers.callback(animation.onAnimationComplete, [animation], chart);
					chart.animating = false;
					animations.splice(i, 1);
				} else {
					++i;
				}
			}
		}
	};

	/**
	 * Provided for backward compatibility, use Chart.Animation instead
	 * @prop Chart.Animation#animationObject
	 * @deprecated since version 2.6.0
	 * @todo remove at version 3
	 */
	Object.defineProperty(Chart.Animation.prototype, 'animationObject', {
		get: function() {
			return this;
		}
	});

	/**
	 * Provided for backward compatibility, use Chart.Animation#chart instead
	 * @prop Chart.Animation#chartInstance
	 * @deprecated since version 2.6.0
	 * @todo remove at version 3
	 */
	Object.defineProperty(Chart.Animation.prototype, 'chartInstance', {
		get: function() {
			return this.chart;
		},
		set: function(value) {
			this.chart = value;
		}
	});

};

},{"25":25,"26":26,"45":45}],23:[function(require,module,exports){
'use strict';

var defaults = require(25);
var helpers = require(45);
var Interaction = require(28);
var platform = require(48);

module.exports = function(Chart) {
	var plugins = Chart.plugins;

	// Create a dictionary of chart types, to allow for extension of existing types
	Chart.types = {};

	// Store a reference to each instance - allowing us to globally resize chart instances on window resize.
	// Destroy method on the chart will remove the instance of the chart from this reference.
	Chart.instances = {};

	// Controllers available for dataset visualization eg. bar, line, slice, etc.
	Chart.controllers = {};

	/**
	 * Initializes the given config with global and chart default values.
	 */
	function initConfig(config) {
		config = config || {};

		// Do NOT use configMerge() for the data object because this method merges arrays
		// and so would change references to labels and datasets, preventing data updates.
		var data = config.data = config.data || {};
		data.datasets = data.datasets || [];
		data.labels = data.labels || [];

		config.options = helpers.configMerge(
			defaults.global,
			defaults[config.type],
			config.options || {});

		return config;
	}

	/**
	 * Updates the config of the chart
	 * @param chart {Chart} chart to update the options for
	 */
	function updateConfig(chart) {
		var newOptions = chart.options;

		// Update Scale(s) with options
		if (newOptions.scale) {
			chart.scale.options = newOptions.scale;
		} else if (newOptions.scales) {
			newOptions.scales.xAxes.concat(newOptions.scales.yAxes).forEach(function(scaleOptions) {
				chart.scales[scaleOptions.id].options = scaleOptions;
			});
		}

		// Tooltip
		chart.tooltip._options = newOptions.tooltips;
	}

	function positionIsHorizontal(position) {
		return position === 'top' || position === 'bottom';
	}

	helpers.extend(Chart.prototype, /** @lends Chart */ {
		/**
		 * @private
		 */
		construct: function(item, config) {
			var me = this;

			config = initConfig(config);

			var context = platform.acquireContext(item, config);
			var canvas = context && context.canvas;
			var height = canvas && canvas.height;
			var width = canvas && canvas.width;

			me.id = helpers.uid();
			me.ctx = context;
			me.canvas = canvas;
			me.config = config;
			me.width = width;
			me.height = height;
			me.aspectRatio = height ? width / height : null;
			me.options = config.options;
			me._bufferedRender = false;

			/**
			 * Provided for backward compatibility, Chart and Chart.Controller have been merged,
			 * the "instance" still need to be defined since it might be called from plugins.
			 * @prop Chart#chart
			 * @deprecated since version 2.6.0
			 * @todo remove at version 3
			 * @private
			 */
			me.chart = me;
			me.controller = me; // chart.chart.controller #inception

			// Add the chart instance to the global namespace
			Chart.instances[me.id] = me;

			// Define alias to the config data: `chart.data === chart.config.data`
			Object.defineProperty(me, 'data', {
				get: function() {
					return me.config.data;
				},
				set: function(value) {
					me.config.data = value;
				}
			});

			if (!context || !canvas) {
				// The given item is not a compatible context2d element, let's return before finalizing
				// the chart initialization but after setting basic chart / controller properties that
				// can help to figure out that the chart is not valid (e.g chart.canvas !== null);
				// https://github.com/chartjs/Chart.js/issues/2807
				console.error("Failed to create chart: can't acquire context from the given item");
				return;
			}

			me.initialize();
			me.update();
		},

		/**
		 * @private
		 */
		initialize: function() {
			var me = this;

			// Before init plugin notification
			plugins.notify(me, 'beforeInit');

			helpers.retinaScale(me, me.options.devicePixelRatio);

			me.bindEvents();

			if (me.options.responsive) {
				// Initial resize before chart draws (must be silent to preserve initial animations).
				me.resize(true);
			}

			// Make sure scales have IDs and are built before we build any controllers.
			me.ensureScalesHaveIDs();
			me.buildScales();
			me.initToolTip();

			// After init plugin notification
			plugins.notify(me, 'afterInit');

			return me;
		},

		clear: function() {
			helpers.canvas.clear(this);
			return this;
		},

		stop: function() {
			// Stops any current animation loop occurring
			Chart.animationService.cancelAnimation(this);
			return this;
		},

		resize: function(silent) {
			var me = this;
			var options = me.options;
			var canvas = me.canvas;
			var aspectRatio = (options.maintainAspectRatio && me.aspectRatio) || null;

			// the canvas render width and height will be casted to integers so make sure that
			// the canvas display style uses the same integer values to avoid blurring effect.

			// Set to 0 instead of canvas.size because the size defaults to 300x150 if the element is collased
			var newWidth = Math.max(0, Math.floor(helpers.getMaximumWidth(canvas)));
			var newHeight = Math.max(0, Math.floor(aspectRatio ? newWidth / aspectRatio : helpers.getMaximumHeight(canvas)));

			if (me.width === newWidth && me.height === newHeight) {
				return;
			}

			canvas.width = me.width = newWidth;
			canvas.height = me.height = newHeight;
			canvas.style.width = newWidth + 'px';
			canvas.style.height = newHeight + 'px';

			helpers.retinaScale(me, options.devicePixelRatio);

			if (!silent) {
				// Notify any plugins about the resize
				var newSize = {width: newWidth, height: newHeight};
				plugins.notify(me, 'resize', [newSize]);

				// Notify of resize
				if (me.options.onResize) {
					me.options.onResize(me, newSize);
				}

				me.stop();
				me.update(me.options.responsiveAnimationDuration);
			}
		},

		ensureScalesHaveIDs: function() {
			var options = this.options;
			var scalesOptions = options.scales || {};
			var scaleOptions = options.scale;

			helpers.each(scalesOptions.xAxes, function(xAxisOptions, index) {
				xAxisOptions.id = xAxisOptions.id || ('x-axis-' + index);
			});

			helpers.each(scalesOptions.yAxes, function(yAxisOptions, index) {
				yAxisOptions.id = yAxisOptions.id || ('y-axis-' + index);
			});

			if (scaleOptions) {
				scaleOptions.id = scaleOptions.id || 'scale';
			}
		},

		/**
		 * Builds a map of scale ID to scale object for future lookup.
		 */
		buildScales: function() {
			var me = this;
			var options = me.options;
			var scales = me.scales = {};
			var items = [];

			if (options.scales) {
				items = items.concat(
					(options.scales.xAxes || []).map(function(xAxisOptions) {
						return {options: xAxisOptions, dtype: 'category', dposition: 'bottom'};
					}),
					(options.scales.yAxes || []).map(function(yAxisOptions) {
						return {options: yAxisOptions, dtype: 'linear', dposition: 'left'};
					})
				);
			}

			if (options.scale) {
				items.push({
					options: options.scale,
					dtype: 'radialLinear',
					isDefault: true,
					dposition: 'chartArea'
				});
			}

			helpers.each(items, function(item) {
				var scaleOptions = item.options;
				var scaleType = helpers.valueOrDefault(scaleOptions.type, item.dtype);
				var scaleClass = Chart.scaleService.getScaleConstructor(scaleType);
				if (!scaleClass) {
					return;
				}

				if (positionIsHorizontal(scaleOptions.position) !== positionIsHorizontal(item.dposition)) {
					scaleOptions.position = item.dposition;
				}

				var scale = new scaleClass({
					id: scaleOptions.id,
					options: scaleOptions,
					ctx: me.ctx,
					chart: me
				});

				scales[scale.id] = scale;
				scale.mergeTicksOptions();

				// TODO(SB): I think we should be able to remove this custom case (options.scale)
				// and consider it as a regular scale part of the "scales"" map only! This would
				// make the logic easier and remove some useless? custom code.
				if (item.isDefault) {
					me.scale = scale;
				}
			});

			Chart.scaleService.addScalesToLayout(this);
		},

		buildOrUpdateControllers: function() {
			var me = this;
			var types = [];
			var newControllers = [];

			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
				var meta = me.getDatasetMeta(datasetIndex);
				var type = dataset.type || me.config.type;

				if (meta.type && meta.type !== type) {
					me.destroyDatasetMeta(datasetIndex);
					meta = me.getDatasetMeta(datasetIndex);
				}
				meta.type = type;

				types.push(meta.type);

				if (meta.controller) {
					meta.controller.updateIndex(datasetIndex);
				} else {
					var ControllerClass = Chart.controllers[meta.type];
					if (ControllerClass === undefined) {
						throw new Error('"' + meta.type + '" is not a chart type.');
					}

					meta.controller = new ControllerClass(me, datasetIndex);
					newControllers.push(meta.controller);
				}
			}, me);

			return newControllers;
		},

		/**
		 * Reset the elements of all datasets
		 * @private
		 */
		resetElements: function() {
			var me = this;
			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
				me.getDatasetMeta(datasetIndex).controller.reset();
			}, me);
		},

		/**
		* Resets the chart back to it's state before the initial animation
		*/
		reset: function() {
			this.resetElements();
			this.tooltip.initialize();
		},

		update: function(config) {
			var me = this;

			if (!config || typeof config !== 'object') {
				// backwards compatibility
				config = {
					duration: config,
					lazy: arguments[1]
				};
			}

			updateConfig(me);

			if (plugins.notify(me, 'beforeUpdate') === false) {
				return;
			}

			// In case the entire data object changed
			me.tooltip._data = me.data;

			// Make sure dataset controllers are updated and new controllers are reset
			var newControllers = me.buildOrUpdateControllers();

			// Make sure all dataset controllers have correct meta data counts
			helpers.each(me.data.datasets, function(dataset, datasetIndex) {
				me.getDatasetMeta(datasetIndex).controller.buildOrUpdateElements();
			}, me);

			me.updateLayout();

			// Can only reset the new controllers after the scales have been updated
			helpers.each(newControllers, function(controller) {
				controller.reset();
			});

			me.updateDatasets();

			// Do this before render so that any plugins that need final scale updates can use it
			plugins.notify(me, 'afterUpdate');

			if (me._bufferedRender) {
				me._bufferedRequest = {
					duration: config.duration,
					easing: config.easing,
					lazy: config.lazy
				};
			} else {
				me.render(config);
			}
		},

		/**
		 * Updates the chart layout unless a plugin returns `false` to the `beforeLayout`
		 * hook, in which case, plugins will not be called on `afterLayout`.
		 * @private
		 */
		updateLayout: function() {
			var me = this;

			if (plugins.notify(me, 'beforeLayout') === false) {
				return;
			}

			Chart.layoutService.update(this, this.width, this.height);

			/**
			 * Provided for backward compatibility, use `afterLayout` instead.
			 * @method IPlugin#afterScaleUpdate
			 * @deprecated since version 2.5.0
			 * @todo remove at version 3
			 * @private
			 */
			plugins.notify(me, 'afterScaleUpdate');
			plugins.notify(me, 'afterLayout');
		},

		/**
		 * Updates all datasets unless a plugin returns `false` to the `beforeDatasetsUpdate`
		 * hook, in which case, plugins will not be called on `afterDatasetsUpdate`.
		 * @private
		 */
		updateDatasets: function() {
			var me = this;

			if (plugins.notify(me, 'beforeDatasetsUpdate') === false) {
				return;
			}

			for (var i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
				me.updateDataset(i);
			}

			plugins.notify(me, 'afterDatasetsUpdate');
		},

		/**
		 * Updates dataset at index unless a plugin returns `false` to the `beforeDatasetUpdate`
		 * hook, in which case, plugins will not be called on `afterDatasetUpdate`.
		 * @private
		 */
		updateDataset: function(index) {
			var me = this;
			var meta = me.getDatasetMeta(index);
			var args = {
				meta: meta,
				index: index
			};

			if (plugins.notify(me, 'beforeDatasetUpdate', [args]) === false) {
				return;
			}

			meta.controller.update();

			plugins.notify(me, 'afterDatasetUpdate', [args]);
		},

		render: function(config) {
			var me = this;

			if (!config || typeof config !== 'object') {
				// backwards compatibility
				config = {
					duration: config,
					lazy: arguments[1]
				};
			}

			var duration = config.duration;
			var lazy = config.lazy;

			if (plugins.notify(me, 'beforeRender') === false) {
				return;
			}

			var animationOptions = me.options.animation;
			var onComplete = function(animation) {
				plugins.notify(me, 'afterRender');
				helpers.callback(animationOptions && animationOptions.onComplete, [animation], me);
			};

			if (animationOptions && ((typeof duration !== 'undefined' && duration !== 0) || (typeof duration === 'undefined' && animationOptions.duration !== 0))) {
				var animation = new Chart.Animation({
					numSteps: (duration || animationOptions.duration) / 16.66, // 60 fps
					easing: config.easing || animationOptions.easing,

					render: function(chart, animationObject) {
						var easingFunction = helpers.easing.effects[animationObject.easing];
						var currentStep = animationObject.currentStep;
						var stepDecimal = currentStep / animationObject.numSteps;

						chart.draw(easingFunction(stepDecimal), stepDecimal, currentStep);
					},

					onAnimationProgress: animationOptions.onProgress,
					onAnimationComplete: onComplete
				});

				Chart.animationService.addAnimation(me, animation, duration, lazy);
			} else {
				me.draw();

				// See https://github.com/chartjs/Chart.js/issues/3781
				onComplete(new Chart.Animation({numSteps: 0, chart: me}));
			}

			return me;
		},

		draw: function(easingValue) {
			var me = this;

			me.clear();

			if (helpers.isNullOrUndef(easingValue)) {
				easingValue = 1;
			}

			me.transition(easingValue);

			if (plugins.notify(me, 'beforeDraw', [easingValue]) === false) {
				return;
			}

			// Draw all the scales
			helpers.each(me.boxes, function(box) {
				box.draw(me.chartArea);
			}, me);

			if (me.scale) {
				me.scale.draw();
			}

			me.drawDatasets(easingValue);

			// Finally draw the tooltip
			me.tooltip.draw();

			plugins.notify(me, 'afterDraw', [easingValue]);
		},

		/**
		 * @private
		 */
		transition: function(easingValue) {
			var me = this;

			for (var i = 0, ilen = (me.data.datasets || []).length; i < ilen; ++i) {
				if (me.isDatasetVisible(i)) {
					me.getDatasetMeta(i).controller.transition(easingValue);
				}
			}

			me.tooltip.transition(easingValue);
		},

		/**
		 * Draws all datasets unless a plugin returns `false` to the `beforeDatasetsDraw`
		 * hook, in which case, plugins will not be called on `afterDatasetsDraw`.
		 * @private
		 */
		drawDatasets: function(easingValue) {
			var me = this;

			if (plugins.notify(me, 'beforeDatasetsDraw', [easingValue]) === false) {
				return;
			}

			// Draw datasets reversed to support proper line stacking
			for (var i = (me.data.datasets || []).length - 1; i >= 0; --i) {
				if (me.isDatasetVisible(i)) {
					me.drawDataset(i, easingValue);
				}
			}

			plugins.notify(me, 'afterDatasetsDraw', [easingValue]);
		},

		/**
		 * Draws dataset at index unless a plugin returns `false` to the `beforeDatasetDraw`
		 * hook, in which case, plugins will not be called on `afterDatasetDraw`.
		 * @private
		 */
		drawDataset: function(index, easingValue) {
			var me = this;
			var meta = me.getDatasetMeta(index);
			var args = {
				meta: meta,
				index: index,
				easingValue: easingValue
			};

			if (plugins.notify(me, 'beforeDatasetDraw', [args]) === false) {
				return;
			}

			meta.controller.draw(easingValue);

			plugins.notify(me, 'afterDatasetDraw', [args]);
		},

		// Get the single element that was clicked on
		// @return : An object containing the dataset index and element index of the matching element. Also contains the rectangle that was draw
		getElementAtEvent: function(e) {
			return Interaction.modes.single(this, e);
		},

		getElementsAtEvent: function(e) {
			return Interaction.modes.label(this, e, {intersect: true});
		},

		getElementsAtXAxis: function(e) {
			return Interaction.modes['x-axis'](this, e, {intersect: true});
		},

		getElementsAtEventForMode: function(e, mode, options) {
			var method = Interaction.modes[mode];
			if (typeof method === 'function') {
				return method(this, e, options);
			}

			return [];
		},

		getDatasetAtEvent: function(e) {
			return Interaction.modes.dataset(this, e, {intersect: true});
		},

		getDatasetMeta: function(datasetIndex) {
			var me = this;
			var dataset = me.data.datasets[datasetIndex];
			if (!dataset._meta) {
				dataset._meta = {};
			}

			var meta = dataset._meta[me.id];
			if (!meta) {
				meta = dataset._meta[me.id] = {
					type: null,
					data: [],
					dataset: null,
					controller: null,
					hidden: null,			// See isDatasetVisible() comment
					xAxisID: null,
					yAxisID: null
				};
			}

			return meta;
		},

		getVisibleDatasetCount: function() {
			var count = 0;
			for (var i = 0, ilen = this.data.datasets.length; i < ilen; ++i) {
				if (this.isDatasetVisible(i)) {
					count++;
				}
			}
			return count;
		},

		isDatasetVisible: function(datasetIndex) {
			var meta = this.getDatasetMeta(datasetIndex);

			// meta.hidden is a per chart dataset hidden flag override with 3 states: if true or false,
			// the dataset.hidden value is ignored, else if null, the dataset hidden state is returned.
			return typeof meta.hidden === 'boolean' ? !meta.hidden : !this.data.datasets[datasetIndex].hidden;
		},

		generateLegend: function() {
			return this.options.legendCallback(this);
		},

		/**
		 * @private
		 */
		destroyDatasetMeta: function(datasetIndex) {
			var id = this.id;
			var dataset = this.data.datasets[datasetIndex];
			var meta = dataset._meta && dataset._meta[id];

			if (meta) {
				meta.controller.destroy();
				delete dataset._meta[id];
			}
		},

		destroy: function() {
			var me = this;
			var canvas = me.canvas;
			var i, ilen;

			me.stop();

			// dataset controllers need to cleanup associated data
			for (i = 0, ilen = me.data.datasets.length; i < ilen; ++i) {
				me.destroyDatasetMeta(i);
			}

			if (canvas) {
				me.unbindEvents();
				helpers.canvas.clear(me);
				platform.releaseContext(me.ctx);
				me.canvas = null;
				me.ctx = null;
			}

			plugins.notify(me, 'destroy');

			delete Chart.instances[me.id];
		},

		toBase64Image: function() {
			return this.canvas.toDataURL.apply(this.canvas, arguments);
		},

		initToolTip: function() {
			var me = this;
			me.tooltip = new Chart.Tooltip({
				_chart: me,
				_chartInstance: me, // deprecated, backward compatibility
				_data: me.data,
				_options: me.options.tooltips
			}, me);
		},

		/**
		 * @private
		 */
		bindEvents: function() {
			var me = this;
			var listeners = me._listeners = {};
			var listener = function() {
				me.eventHandler.apply(me, arguments);
			};

			helpers.each(me.options.events, function(type) {
				platform.addEventListener(me, type, listener);
				listeners[type] = listener;
			});

			// Elements used to detect size change should not be injected for non responsive charts.
			// See https://github.com/chartjs/Chart.js/issues/2210
			if (me.options.responsive) {
				listener = function() {
					me.resize();
				};

				platform.addEventListener(me, 'resize', listener);
				listeners.resize = listener;
			}
		},

		/**
		 * @private
		 */
		unbindEvents: function() {
			var me = this;
			var listeners = me._listeners;
			if (!listeners) {
				return;
			}

			delete me._listeners;
			helpers.each(listeners, function(listener, type) {
				platform.removeEventListener(me, type, listener);
			});
		},

		updateHoverStyle: function(elements, mode, enabled) {
			var method = enabled ? 'setHoverStyle' : 'removeHoverStyle';
			var element, i, ilen;

			for (i = 0, ilen = elements.length; i < ilen; ++i) {
				element = elements[i];
				if (element) {
					this.getDatasetMeta(element._datasetIndex).controller[method](element);
				}
			}
		},

		/**
		 * @private
		 */
		eventHandler: function(e) {
			var me = this;
			var tooltip = me.tooltip;

			if (plugins.notify(me, 'beforeEvent', [e]) === false) {
				return;
			}

			// Buffer any update calls so that renders do not occur
			me._bufferedRender = true;
			me._bufferedRequest = null;

			var changed = me.handleEvent(e);
			changed |= tooltip && tooltip.handleEvent(e);

			plugins.notify(me, 'afterEvent', [e]);

			var bufferedRequest = me._bufferedRequest;
			if (bufferedRequest) {
				// If we have an update that was triggered, we need to do a normal render
				me.render(bufferedRequest);
			} else if (changed && !me.animating) {
				// If entering, leaving, or changing elements, animate the change via pivot
				me.stop();

				// We only need to render at this point. Updating will cause scales to be
				// recomputed generating flicker & using more memory than necessary.
				me.render(me.options.hover.animationDuration, true);
			}

			me._bufferedRender = false;
			me._bufferedRequest = null;

			return me;
		},

		/**
		 * Handle an event
		 * @private
		 * @param {IEvent} event the event to handle
		 * @return {Boolean} true if the chart needs to re-render
		 */
		handleEvent: function(e) {
			var me = this;
			var options = me.options || {};
			var hoverOptions = options.hover;
			var changed = false;

			me.lastActive = me.lastActive || [];

			// Find Active Elements for hover and tooltips
			if (e.type === 'mouseout') {
				me.active = [];
			} else {
				me.active = me.getElementsAtEventForMode(e, hoverOptions.mode, hoverOptions);
			}

			// Invoke onHover hook
			// Need to call with native event here to not break backwards compatibility
			helpers.callback(options.onHover || options.hover.onHover, [e.native, me.active], me);

			if (e.type === 'mouseup' || e.type === 'click') {
				if (options.onClick) {
					// Use e.native here for backwards compatibility
					options.onClick.call(me, e.native, me.active);
				}
			}

			// Remove styling for last active (even if it may still be active)
			if (me.lastActive.length) {
				me.updateHoverStyle(me.lastActive, hoverOptions.mode, false);
			}

			// Built in hover styling
			if (me.active.length && hoverOptions.mode) {
				me.updateHoverStyle(me.active, hoverOptions.mode, true);
			}

			changed = !helpers.arrayEquals(me.active, me.lastActive);

			// Remember Last Actives
			me.lastActive = me.active;

			return changed;
		}
	});

	/**
	 * Provided for backward compatibility, use Chart instead.
	 * @class Chart.Controller
	 * @deprecated since version 2.6.0
	 * @todo remove at version 3
	 * @private
	 */
	Chart.Controller = Chart;
};

},{"25":25,"28":28,"45":45,"48":48}],24:[function(require,module,exports){
'use strict';

var helpers = require(45);

module.exports = function(Chart) {

	var arrayEvents = ['push', 'pop', 'shift', 'splice', 'unshift'];

	/**
	 * Hooks the array methods that add or remove values ('push', pop', 'shift', 'splice',
	 * 'unshift') and notify the listener AFTER the array has been altered. Listeners are
	 * called on the 'onData*' callbacks (e.g. onDataPush, etc.) with same arguments.
	 */
	function listenArrayEvents(array, listener) {
		if (array._chartjs) {
			array._chartjs.listeners.push(listener);
			return;
		}

		Object.defineProperty(array, '_chartjs', {
			configurable: true,
			enumerable: false,
			value: {
				listeners: [listener]
			}
		});

		arrayEvents.forEach(function(key) {
			var method = 'onData' + key.charAt(0).toUpperCase() + key.slice(1);
			var base = array[key];

			Object.defineProperty(array, key, {
				configurable: true,
				enumerable: false,
				value: function() {
					var args = Array.prototype.slice.call(arguments);
					var res = base.apply(this, args);

					helpers.each(array._chartjs.listeners, function(object) {
						if (typeof object[method] === 'function') {
							object[method].apply(object, args);
						}
					});

					return res;
				}
			});
		});
	}

	/**
	 * Removes the given array event listener and cleanup extra attached properties (such as
	 * the _chartjs stub and overridden methods) if array doesn't have any more listeners.
	 */
	function unlistenArrayEvents(array, listener) {
		var stub = array._chartjs;
		if (!stub) {
			return;
		}

		var listeners = stub.listeners;
		var index = listeners.indexOf(listener);
		if (index !== -1) {
			listeners.splice(index, 1);
		}

		if (listeners.length > 0) {
			return;
		}

		arrayEvents.forEach(function(key) {
			delete array[key];
		});

		delete array._chartjs;
	}

	// Base class for all dataset controllers (line, bar, etc)
	Chart.DatasetController = function(chart, datasetIndex) {
		this.initialize(chart, datasetIndex);
	};

	helpers.extend(Chart.DatasetController.prototype, {

		/**
		 * Element type used to generate a meta dataset (e.g. Chart.element.Line).
		 * @type {Chart.core.element}
		 */
		datasetElementType: null,

		/**
		 * Element type used to generate a meta data (e.g. Chart.element.Point).
		 * @type {Chart.core.element}
		 */
		dataElementType: null,

		initialize: function(chart, datasetIndex) {
			var me = this;
			me.chart = chart;
			me.index = datasetIndex;
			me.linkScales();
			me.addElements();
		},

		updateIndex: function(datasetIndex) {
			this.index = datasetIndex;
		},

		linkScales: function() {
			var me = this;
			var meta = me.getMeta();
			var dataset = me.getDataset();

			if (meta.xAxisID === null) {
				meta.xAxisID = dataset.xAxisID || me.chart.options.scales.xAxes[0].id;
			}
			if (meta.yAxisID === null) {
				meta.yAxisID = dataset.yAxisID || me.chart.options.scales.yAxes[0].id;
			}
		},

		getDataset: function() {
			return this.chart.data.datasets[this.index];
		},

		getMeta: function() {
			return this.chart.getDatasetMeta(this.index);
		},

		getScaleForId: function(scaleID) {
			return this.chart.scales[scaleID];
		},

		reset: function() {
			this.update(true);
		},

		/**
		 * @private
		 */
		destroy: function() {
			if (this._data) {
				unlistenArrayEvents(this._data, this);
			}
		},

		createMetaDataset: function() {
			var me = this;
			var type = me.datasetElementType;
			return type && new type({
				_chart: me.chart,
				_datasetIndex: me.index
			});
		},

		createMetaData: function(index) {
			var me = this;
			var type = me.dataElementType;
			return type && new type({
				_chart: me.chart,
				_datasetIndex: me.index,
				_index: index
			});
		},

		addElements: function() {
			var me = this;
			var meta = me.getMeta();
			var data = me.getDataset().data || [];
			var metaData = meta.data;
			var i, ilen;

			for (i = 0, ilen = data.length; i < ilen; ++i) {
				metaData[i] = metaData[i] || me.createMetaData(i);
			}

			meta.dataset = meta.dataset || me.createMetaDataset();
		},

		addElementAndReset: function(index) {
			var element = this.createMetaData(index);
			this.getMeta().data.splice(index, 0, element);
			this.updateElement(element, index, true);
		},

		buildOrUpdateElements: function() {
			var me = this;
			var dataset = me.getDataset();
			var data = dataset.data || (dataset.data = []);

			// In order to correctly handle data addition/deletion animation (an thus simulate
			// real-time charts), we need to monitor these data modifications and synchronize
			// the internal meta data accordingly.
			if (me._data !== data) {
				if (me._data) {
					// This case happens when the user replaced the data array instance.
					unlistenArrayEvents(me._data, me);
				}

				listenArrayEvents(data, me);
				me._data = data;
			}

			// Re-sync meta data in case the user replaced the data array or if we missed
			// any updates and so make sure that we handle number of datapoints changing.
			me.resyncElements();
		},

		update: helpers.noop,

		transition: function(easingValue) {
			var meta = this.getMeta();
			var elements = meta.data || [];
			var ilen = elements.length;
			var i = 0;

			for (; i < ilen; ++i) {
				elements[i].transition(easingValue);
			}

			if (meta.dataset) {
				meta.dataset.transition(easingValue);
			}
		},

		draw: function() {
			var meta = this.getMeta();
			var elements = meta.data || [];
			var ilen = elements.length;
			var i = 0;

			if (meta.dataset) {
				meta.dataset.draw();
			}

			for (; i < ilen; ++i) {
				elements[i].draw();
			}
		},

		removeHoverStyle: function(element, elementOpts) {
			var dataset = this.chart.data.datasets[element._datasetIndex];
			var index = element._index;
			var custom = element.custom || {};
			var valueOrDefault = helpers.valueAtIndexOrDefault;
			var model = element._model;

			model.backgroundColor = custom.backgroundColor ? custom.backgroundColor : valueOrDefault(dataset.backgroundColor, index, elementOpts.backgroundColor);
			model.borderColor = custom.borderColor ? custom.borderColor : valueOrDefault(dataset.borderColor, index, elementOpts.borderColor);
			model.borderWidth = custom.borderWidth ? custom.borderWidth : valueOrDefault(dataset.borderWidth, index, elementOpts.borderWidth);
		},

		setHoverStyle: function(element) {
			var dataset = this.chart.data.datasets[element._datasetIndex];
			var index = element._index;
			var custom = element.custom || {};
			var valueOrDefault = helpers.valueAtIndexOrDefault;
			var getHoverColor = helpers.getHoverColor;
			var model = element._model;

			model.backgroundColor = custom.hoverBackgroundColor ? custom.hoverBackgroundColor : valueOrDefault(dataset.hoverBackgroundColor, index, getHoverColor(model.backgroundColor));
			model.borderColor = custom.hoverBorderColor ? custom.hoverBorderColor : valueOrDefault(dataset.hoverBorderColor, index, getHoverColor(model.borderColor));
			model.borderWidth = custom.hoverBorderWidth ? custom.hoverBorderWidth : valueOrDefault(dataset.hoverBorderWidth, index, model.borderWidth);
		},

		/**
		 * @private
		 */
		resyncElements: function() {
			var me = this;
			var meta = me.getMeta();
			var data = me.getDataset().data;
			var numMeta = meta.data.length;
			var numData = data.length;

			if (numData < numMeta) {
				meta.data.splice(numData, numMeta - numData);
			} else if (numData > numMeta) {
				me.insertElements(numMeta, numData - numMeta);
			}
		},

		/**
		 * @private
		 */
		insertElements: function(start, count) {
			for (var i = 0; i < count; ++i) {
				this.addElementAndReset(start + i);
			}
		},

		/**
		 * @private
		 */
		onDataPush: function() {
			this.insertElements(this.getDataset().data.length - 1, arguments.length);
		},

		/**
		 * @private
		 */
		onDataPop: function() {
			this.getMeta().data.pop();
		},

		/**
		 * @private
		 */
		onDataShift: function() {
			this.getMeta().data.shift();
		},

		/**
		 * @private
		 */
		onDataSplice: function(start, count) {
			this.getMeta().data.splice(start, count);
			this.insertElements(start, arguments.length - 2);
		},

		/**
		 * @private
		 */
		onDataUnshift: function() {
			this.insertElements(0, arguments.length);
		}
	});

	Chart.DatasetController.extend = helpers.inherits;
};

},{"45":45}],25:[function(require,module,exports){
'use strict';

var helpers = require(45);

module.exports = {
	/**
	 * @private
	 */
	_set: function(scope, values) {
		return helpers.merge(this[scope] || (this[scope] = {}), values);
	}
};

},{"45":45}],26:[function(require,module,exports){
'use strict';

var color = require(2);
var helpers = require(45);

function interpolate(start, view, model, ease) {
	var keys = Object.keys(model);
	var i, ilen, key, actual, origin, target, type, c0, c1;

	for (i = 0, ilen = keys.length; i < ilen; ++i) {
		key = keys[i];

		target = model[key];

		// if a value is added to the model after pivot() has been called, the view
		// doesn't contain it, so let's initialize the view to the target value.
		if (!view.hasOwnProperty(key)) {
			view[key] = target;
		}

		actual = view[key];

		if (actual === target || key[0] === '_') {
			continue;
		}

		if (!start.hasOwnProperty(key)) {
			start[key] = actual;
		}

		origin = start[key];

		type = typeof target;

		if (type === typeof origin) {
			if (type === 'string') {
				c0 = color(origin);
				if (c0.valid) {
					c1 = color(target);
					if (c1.valid) {
						view[key] = c1.mix(c0, ease).rgbString();
						continue;
					}
				}
			} else if (type === 'number' && isFinite(origin) && isFinite(target)) {
				view[key] = origin + (target - origin) * ease;
				continue;
			}
		}

		view[key] = target;
	}
}

var Element = function(configuration) {
	helpers.extend(this, configuration);
	this.initialize.apply(this, arguments);
};

helpers.extend(Element.prototype, {

	initialize: function() {
		this.hidden = false;
	},

	pivot: function() {
		var me = this;
		if (!me._view) {
			me._view = helpers.clone(me._model);
		}
		me._start = {};
		return me;
	},

	transition: function(ease) {
		var me = this;
		var model = me._model;
		var start = me._start;
		var view = me._view;

		// No animation -> No Transition
		if (!model || ease === 1) {
			me._view = model;
			me._start = null;
			return me;
		}

		if (!view) {
			view = me._view = {};
		}

		if (!start) {
			start = me._start = {};
		}

		interpolate(start, view, model, ease);

		return me;
	},

	tooltipPosition: function() {
		return {
			x: this._model.x,
			y: this._model.y
		};
	},

	hasValue: function() {
		return helpers.isNumber(this._model.x) && helpers.isNumber(this._model.y);
	}
});

Element.extend = helpers.inherits;

module.exports = Element;

},{"2":2,"45":45}],27:[function(require,module,exports){
/* global window: false */
/* global document: false */
'use strict';

var color = require(2);
var defaults = require(25);
var helpers = require(45);

module.exports = function(Chart) {

	// -- Basic js utility methods

	helpers.extend = function(base) {
		var setFn = function(value, key) {
			base[key] = value;
		};
		for (var i = 1, ilen = arguments.length; i < ilen; i++) {
			helpers.each(arguments[i], setFn);
		}
		return base;
	};

	helpers.configMerge = function(/* objects ... */) {
		return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
			merger: function(key, target, source, options) {
				var tval = target[key] || {};
				var sval = source[key];

				if (key === 'scales') {
					// scale config merging is complex. Add our own function here for that
					target[key] = helpers.scaleMerge(tval, sval);
				} else if (key === 'scale') {
					// used in polar area & radar charts since there is only one scale
					target[key] = helpers.merge(tval, [Chart.scaleService.getScaleDefaults(sval.type), sval]);
				} else {
					helpers._merger(key, target, source, options);
				}
			}
		});
	};

	helpers.scaleMerge = function(/* objects ... */) {
		return helpers.merge(helpers.clone(arguments[0]), [].slice.call(arguments, 1), {
			merger: function(key, target, source, options) {
				if (key === 'xAxes' || key === 'yAxes') {
					var slen = source[key].length;
					var i, type, scale;

					if (!target[key]) {
						target[key] = [];
					}

					for (i = 0; i < slen; ++i) {
						scale = source[key][i];
						type = helpers.valueOrDefault(scale.type, key === 'xAxes' ? 'category' : 'linear');

						if (i >= target[key].length) {
							target[key].push({});
						}

						if (!target[key][i].type || (scale.type && scale.type !== target[key][i].type)) {
							// new/untyped scale or type changed: let's apply the new defaults
							// then merge source scale to correctly overwrite the defaults.
							helpers.merge(target[key][i], [Chart.scaleService.getScaleDefaults(type), scale]);
						} else {
							// scales type are the same
							helpers.merge(target[key][i], scale);
						}
					}
				} else {
					helpers._merger(key, target, source, options);
				}
			}
		});
	};

	helpers.where = function(collection, filterCallback) {
		if (helpers.isArray(collection) && Array.prototype.filter) {
			return collection.filter(filterCallback);
		}
		var filtered = [];

		helpers.each(collection, function(item) {
			if (filterCallback(item)) {
				filtered.push(item);
			}
		});

		return filtered;
	};
	helpers.findIndex = Array.prototype.findIndex ?
		function(array, callback, scope) {
			return array.findIndex(callback, scope);
		} :
		function(array, callback, scope) {
			scope = scope === undefined ? array : scope;
			for (var i = 0, ilen = array.length; i < ilen; ++i) {
				if (callback.call(scope, array[i], i, array)) {
					return i;
				}
			}
			return -1;
		};
	helpers.findNextWhere = function(arrayToSearch, filterCallback, startIndex) {
		// Default to start of the array
		if (helpers.isNullOrUndef(startIndex)) {
			startIndex = -1;
		}
		for (var i = startIndex + 1; i < arrayToSearch.length; i++) {
			var currentItem = arrayToSearch[i];
			if (filterCallback(currentItem)) {
				return currentItem;
			}
		}
	};
	helpers.findPreviousWhere = function(arrayToSearch, filterCallback, startIndex) {
		// Default to end of the array
		if (helpers.isNullOrUndef(startIndex)) {
			startIndex = arrayToSearch.length;
		}
		for (var i = startIndex - 1; i >= 0; i--) {
			var currentItem = arrayToSearch[i];
			if (filterCallback(currentItem)) {
				return currentItem;
			}
		}
	};
	helpers.inherits = function(extensions) {
		// Basic javascript inheritance based on the model created in Backbone.js
		var me = this;
		var ChartElement = (extensions && extensions.hasOwnProperty('constructor')) ? extensions.constructor : function() {
			return me.apply(this, arguments);
		};

		var Surrogate = function() {
			this.constructor = ChartElement;
		};
		Surrogate.prototype = me.prototype;
		ChartElement.prototype = new Surrogate();

		ChartElement.extend = helpers.inherits;

		if (extensions) {
			helpers.extend(ChartElement.prototype, extensions);
		}

		ChartElement.__super__ = me.prototype;

		return ChartElement;
	};
	// -- Math methods
	helpers.isNumber = function(n) {
		return !isNaN(parseFloat(n)) && isFinite(n);
	};
	helpers.almostEquals = function(x, y, epsilon) {
		return Math.abs(x - y) < epsilon;
	};
	helpers.almostWhole = function(x, epsilon) {
		var rounded = Math.round(x);
		return (((rounded - epsilon) < x) && ((rounded + epsilon) > x));
	};
	helpers.max = function(array) {
		return array.reduce(function(max, value) {
			if (!isNaN(value)) {
				return Math.max(max, value);
			}
			return max;
		}, Number.NEGATIVE_INFINITY);
	};
	helpers.min = function(array) {
		return array.reduce(function(min, value) {
			if (!isNaN(value)) {
				return Math.min(min, value);
			}
			return min;
		}, Number.POSITIVE_INFINITY);
	};
	helpers.sign = Math.sign ?
		function(x) {
			return Math.sign(x);
		} :
		function(x) {
			x = +x; // convert to a number
			if (x === 0 || isNaN(x)) {
				return x;
			}
			return x > 0 ? 1 : -1;
		};
	helpers.log10 = Math.log10 ?
		function(x) {
			return Math.log10(x);
		} :
		function(x) {
			return Math.log(x) / Math.LN10;
		};
	helpers.toRadians = function(degrees) {
		return degrees * (Math.PI / 180);
	};
	helpers.toDegrees = function(radians) {
		return radians * (180 / Math.PI);
	};
	// Gets the angle from vertical upright to the point about a centre.
	helpers.getAngleFromPoint = function(centrePoint, anglePoint) {
		var distanceFromXCenter = anglePoint.x - centrePoint.x;
		var distanceFromYCenter = anglePoint.y - centrePoint.y;
		var radialDistanceFromCenter = Math.sqrt(distanceFromXCenter * distanceFromXCenter + distanceFromYCenter * distanceFromYCenter);

		var angle = Math.atan2(distanceFromYCenter, distanceFromXCenter);

		if (angle < (-0.5 * Math.PI)) {
			angle += 2.0 * Math.PI; // make sure the returned angle is in the range of (-PI/2, 3PI/2]
		}

		return {
			angle: angle,
			distance: radialDistanceFromCenter
		};
	};
	helpers.distanceBetweenPoints = function(pt1, pt2) {
		return Math.sqrt(Math.pow(pt2.x - pt1.x, 2) + Math.pow(pt2.y - pt1.y, 2));
	};
	helpers.aliasPixel = function(pixelWidth) {
		return (pixelWidth % 2 === 0) ? 0 : 0.5;
	};
	helpers.splineCurve = function(firstPoint, middlePoint, afterPoint, t) {
		// Props to Rob Spencer at scaled innovation for his post on splining between points
		// http://scaledinnovation.com/analytics/splines/aboutSplines.html

		// This function must also respect "skipped" points

		var previous = firstPoint.skip ? middlePoint : firstPoint;
		var current = middlePoint;
		var next = afterPoint.skip ? middlePoint : afterPoint;

		var d01 = Math.sqrt(Math.pow(current.x - previous.x, 2) + Math.pow(current.y - previous.y, 2));
		var d12 = Math.sqrt(Math.pow(next.x - current.x, 2) + Math.pow(next.y - current.y, 2));

		var s01 = d01 / (d01 + d12);
		var s12 = d12 / (d01 + d12);

		// If all points are the same, s01 & s02 will be inf
		s01 = isNaN(s01) ? 0 : s01;
		s12 = isNaN(s12) ? 0 : s12;

		var fa = t * s01; // scaling factor for triangle Ta
		var fb = t * s12;

		return {
			previous: {
				x: current.x - fa * (next.x - previous.x),
				y: current.y - fa * (next.y - previous.y)
			},
			next: {
				x: current.x + fb * (next.x - previous.x),
				y: current.y + fb * (next.y - previous.y)
			}
		};
	};
	helpers.EPSILON = Number.EPSILON || 1e-14;
	helpers.splineCurveMonotone = function(points) {
		// This function calculates Bézier control points in a similar way than |splineCurve|,
		// but preserves monotonicity of the provided data and ensures no local extremums are added
		// between the dataset discrete points due to the interpolation.
		// See : https://en.wikipedia.org/wiki/Monotone_cubic_interpolation

		var pointsWithTangents = (points || []).map(function(point) {
			return {
				model: point._model,
				deltaK: 0,
				mK: 0
			};
		});

		// Calculate slopes (deltaK) and initialize tangents (mK)
		var pointsLen = pointsWithTangents.length;
		var i, pointBefore, pointCurrent, pointAfter;
		for (i = 0; i < pointsLen; ++i) {
			pointCurrent = pointsWithTangents[i];
			if (pointCurrent.model.skip) {
				continue;
			}

			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
			if (pointAfter && !pointAfter.model.skip) {
				var slopeDeltaX = (pointAfter.model.x - pointCurrent.model.x);

				// In the case of two points that appear at the same x pixel, slopeDeltaX is 0
				pointCurrent.deltaK = slopeDeltaX !== 0 ? (pointAfter.model.y - pointCurrent.model.y) / slopeDeltaX : 0;
			}

			if (!pointBefore || pointBefore.model.skip) {
				pointCurrent.mK = pointCurrent.deltaK;
			} else if (!pointAfter || pointAfter.model.skip) {
				pointCurrent.mK = pointBefore.deltaK;
			} else if (this.sign(pointBefore.deltaK) !== this.sign(pointCurrent.deltaK)) {
				pointCurrent.mK = 0;
			} else {
				pointCurrent.mK = (pointBefore.deltaK + pointCurrent.deltaK) / 2;
			}
		}

		// Adjust tangents to ensure monotonic properties
		var alphaK, betaK, tauK, squaredMagnitude;
		for (i = 0; i < pointsLen - 1; ++i) {
			pointCurrent = pointsWithTangents[i];
			pointAfter = pointsWithTangents[i + 1];
			if (pointCurrent.model.skip || pointAfter.model.skip) {
				continue;
			}

			if (helpers.almostEquals(pointCurrent.deltaK, 0, this.EPSILON)) {
				pointCurrent.mK = pointAfter.mK = 0;
				continue;
			}

			alphaK = pointCurrent.mK / pointCurrent.deltaK;
			betaK = pointAfter.mK / pointCurrent.deltaK;
			squaredMagnitude = Math.pow(alphaK, 2) + Math.pow(betaK, 2);
			if (squaredMagnitude <= 9) {
				continue;
			}

			tauK = 3 / Math.sqrt(squaredMagnitude);
			pointCurrent.mK = alphaK * tauK * pointCurrent.deltaK;
			pointAfter.mK = betaK * tauK * pointCurrent.deltaK;
		}

		// Compute control points
		var deltaX;
		for (i = 0; i < pointsLen; ++i) {
			pointCurrent = pointsWithTangents[i];
			if (pointCurrent.model.skip) {
				continue;
			}

			pointBefore = i > 0 ? pointsWithTangents[i - 1] : null;
			pointAfter = i < pointsLen - 1 ? pointsWithTangents[i + 1] : null;
			if (pointBefore && !pointBefore.model.skip) {
				deltaX = (pointCurrent.model.x - pointBefore.model.x) / 3;
				pointCurrent.model.controlPointPreviousX = pointCurrent.model.x - deltaX;
				pointCurrent.model.controlPointPreviousY = pointCurrent.model.y - deltaX * pointCurrent.mK;
			}
			if (pointAfter && !pointAfter.model.skip) {
				deltaX = (pointAfter.model.x - pointCurrent.model.x) / 3;
				pointCurrent.model.controlPointNextX = pointCurrent.model.x + deltaX;
				pointCurrent.model.controlPointNextY = pointCurrent.model.y + deltaX * pointCurrent.mK;
			}
		}
	};
	helpers.nextItem = function(collection, index, loop) {
		if (loop) {
			return index >= collection.length - 1 ? collection[0] : collection[index + 1];
		}
		return index >= collection.length - 1 ? collection[collection.length - 1] : collection[index + 1];
	};
	helpers.previousItem = function(collection, index, loop) {
		if (loop) {
			return index <= 0 ? collection[collection.length - 1] : collection[index - 1];
		}
		return index <= 0 ? collection[0] : collection[index - 1];
	};
	// Implementation of the nice number algorithm used in determining where axis labels will go
	helpers.niceNum = function(range, round) {
		var exponent = Math.floor(helpers.log10(range));
		var fraction = range / Math.pow(10, exponent);
		var niceFraction;

		if (round) {
			if (fraction < 1.5) {
				niceFraction = 1;
			} else if (fraction < 3) {
				niceFraction = 2;
			} else if (fraction < 7) {
				niceFraction = 5;
			} else {
				niceFraction = 10;
			}
		} else if (fraction <= 1.0) {
			niceFraction = 1;
		} else if (fraction <= 2) {
			niceFraction = 2;
		} else if (fraction <= 5) {
			niceFraction = 5;
		} else {
			niceFraction = 10;
		}

		return niceFraction * Math.pow(10, exponent);
	};
	// Request animation polyfill - http://www.paulirish.com/2011/requestanimationframe-for-smart-animating/
	helpers.requestAnimFrame = (function() {
		if (typeof window === 'undefined') {
			return function(callback) {
				callback();
			};
		}
		return window.requestAnimationFrame ||
			window.webkitRequestAnimationFrame ||
			window.mozRequestAnimationFrame ||
			window.oRequestAnimationFrame ||
			window.msRequestAnimationFrame ||
			function(callback) {
				return window.setTimeout(callback, 1000 / 60);
			};
	}());
	// -- DOM methods
	helpers.getRelativePosition = function(evt, chart) {
		var mouseX, mouseY;
		var e = evt.originalEvent || evt;
		var canvas = evt.currentTarget || evt.srcElement;
		var boundingRect = canvas.getBoundingClientRect();

		var touches = e.touches;
		if (touches && touches.length > 0) {
			mouseX = touches[0].clientX;
			mouseY = touches[0].clientY;

		} else {
			mouseX = e.clientX;
			mouseY = e.clientY;
		}

		// Scale mouse coordinates into canvas coordinates
		// by following the pattern laid out by 'jerryj' in the comments of
		// http://www.html5canvastutorials.com/advanced/html5-canvas-mouse-coordinates/
		var paddingLeft = parseFloat(helpers.getStyle(canvas, 'padding-left'));
		var paddingTop = parseFloat(helpers.getStyle(canvas, 'padding-top'));
		var paddingRight = parseFloat(helpers.getStyle(canvas, 'padding-right'));
		var paddingBottom = parseFloat(helpers.getStyle(canvas, 'padding-bottom'));
		var width = boundingRect.right - boundingRect.left - paddingLeft - paddingRight;
		var height = boundingRect.bottom - boundingRect.top - paddingTop - paddingBottom;

		// We divide by the current device pixel ratio, because the canvas is scaled up by that amount in each direction. However
		// the backend model is in unscaled coordinates. Since we are going to deal with our model coordinates, we go back here
		mouseX = Math.round((mouseX - boundingRect.left - paddingLeft) / (width) * canvas.width / chart.currentDevicePixelRatio);
		mouseY = Math.round((mouseY - boundingRect.top - paddingTop) / (height) * canvas.height / chart.currentDevicePixelRatio);

		return {
			x: mouseX,
			y: mouseY
		};

	};

	// Private helper function to convert max-width/max-height values that may be percentages into a number
	function parseMaxStyle(styleValue, node, parentProperty) {
		var valueInPixels;
		if (typeof styleValue === 'string') {
			valueInPixels = parseInt(styleValue, 10);

			if (styleValue.indexOf('%') !== -1) {
				// percentage * size in dimension
				valueInPixels = valueInPixels / 100 * node.parentNode[parentProperty];
			}
		} else {
			valueInPixels = styleValue;
		}

		return valueInPixels;
	}

	/**
	 * Returns if the given value contains an effective constraint.
	 * @private
	 */
	function isConstrainedValue(value) {
		return value !== undefined && value !== null && value !== 'none';
	}

	// Private helper to get a constraint dimension
	// @param domNode : the node to check the constraint on
	// @param maxStyle : the style that defines the maximum for the direction we are using (maxWidth / maxHeight)
	// @param percentageProperty : property of parent to use when calculating width as a percentage
	// @see http://www.nathanaeljones.com/blog/2013/reading-max-width-cross-browser
	function getConstraintDimension(domNode, maxStyle, percentageProperty) {
		var view = document.defaultView;
		var parentNode = domNode.parentNode;
		var constrainedNode = view.getComputedStyle(domNode)[maxStyle];
		var constrainedContainer = view.getComputedStyle(parentNode)[maxStyle];
		var hasCNode = isConstrainedValue(constrainedNode);
		var hasCContainer = isConstrainedValue(constrainedContainer);
		var infinity = Number.POSITIVE_INFINITY;

		if (hasCNode || hasCContainer) {
			return Math.min(
				hasCNode ? parseMaxStyle(constrainedNode, domNode, percentageProperty) : infinity,
				hasCContainer ? parseMaxStyle(constrainedContainer, parentNode, percentageProperty) : infinity);
		}

		return 'none';
	}
	// returns Number or undefined if no constraint
	helpers.getConstraintWidth = function(domNode) {
		return getConstraintDimension(domNode, 'max-width', 'clientWidth');
	};
	// returns Number or undefined if no constraint
	helpers.getConstraintHeight = function(domNode) {
		return getConstraintDimension(domNode, 'max-height', 'clientHeight');
	};
	helpers.getMaximumWidth = function(domNode) {
		var container = domNode.parentNode;
		if (!container) {
			return domNode.clientWidth;
		}

		var paddingLeft = parseInt(helpers.getStyle(container, 'padding-left'), 10);
		var paddingRight = parseInt(helpers.getStyle(container, 'padding-right'), 10);
		var w = container.clientWidth - paddingLeft - paddingRight;
		var cw = helpers.getConstraintWidth(domNode);
		return isNaN(cw) ? w : Math.min(w, cw);
	};
	helpers.getMaximumHeight = function(domNode) {
		var container = domNode.parentNode;
		if (!container) {
			return domNode.clientHeight;
		}

		var paddingTop = parseInt(helpers.getStyle(container, 'padding-top'), 10);
		var paddingBottom = parseInt(helpers.getStyle(container, 'padding-bottom'), 10);
		var h = container.clientHeight - paddingTop - paddingBottom;
		var ch = helpers.getConstraintHeight(domNode);
		return isNaN(ch) ? h : Math.min(h, ch);
	};
	helpers.getStyle = function(el, property) {
		return el.currentStyle ?
			el.currentStyle[property] :
			document.defaultView.getComputedStyle(el, null).getPropertyValue(property);
	};
	helpers.retinaScale = function(chart, forceRatio) {
		var pixelRatio = chart.currentDevicePixelRatio = forceRatio || window.devicePixelRatio || 1;
		if (pixelRatio === 1) {
			return;
		}

		var canvas = chart.canvas;
		var height = chart.height;
		var width = chart.width;

		canvas.height = height * pixelRatio;
		canvas.width = width * pixelRatio;
		chart.ctx.scale(pixelRatio, pixelRatio);

		// If no style has been set on the canvas, the render size is used as display size,
		// making the chart visually bigger, so let's enforce it to the "correct" values.
		// See https://github.com/chartjs/Chart.js/issues/3575
		canvas.style.height = height + 'px';
		canvas.style.width = width + 'px';
	};
	// -- Canvas methods
	helpers.fontString = function(pixelSize, fontStyle, fontFamily) {
		return fontStyle + ' ' + pixelSize + 'px ' + fontFamily;
	};
	helpers.longestText = function(ctx, font, arrayOfThings, cache) {
		cache = cache || {};
		var data = cache.data = cache.data || {};
		var gc = cache.garbageCollect = cache.garbageCollect || [];

		if (cache.font !== font) {
			data = cache.data = {};
			gc = cache.garbageCollect = [];
			cache.font = font;
		}

		ctx.font = font;
		var longest = 0;
		helpers.each(arrayOfThings, function(thing) {
			// Undefined strings and arrays should not be measured
			if (thing !== undefined && thing !== null && helpers.isArray(thing) !== true) {
				longest = helpers.measureText(ctx, data, gc, longest, thing);
			} else if (helpers.isArray(thing)) {
				// if it is an array lets measure each element
				// to do maybe simplify this function a bit so we can do this more recursively?
				helpers.each(thing, function(nestedThing) {
					// Undefined strings and arrays should not be measured
					if (nestedThing !== undefined && nestedThing !== null && !helpers.isArray(nestedThing)) {
						longest = helpers.measureText(ctx, data, gc, longest, nestedThing);
					}
				});
			}
		});

		var gcLen = gc.length / 2;
		if (gcLen > arrayOfThings.length) {
			for (var i = 0; i < gcLen; i++) {
				delete data[gc[i]];
			}
			gc.splice(0, gcLen);
		}
		return longest;
	};
	helpers.measureText = function(ctx, data, gc, longest, string) {
		var textWidth = data[string];
		if (!textWidth) {
			textWidth = data[string] = ctx.measureText(string).width;
			gc.push(string);
		}
		if (textWidth > longest) {
			longest = textWidth;
		}
		return longest;
	};
	helpers.numberOfLabelLines = function(arrayOfThings) {
		var numberOfLines = 1;
		helpers.each(arrayOfThings, function(thing) {
			if (helpers.isArray(thing)) {
				if (thing.length > numberOfLines) {
					numberOfLines = thing.length;
				}
			}
		});
		return numberOfLines;
	};

	helpers.color = !color ?
		function(value) {
			console.error('Color.js not found!');
			return value;
		} :
		function(value) {
			/* global CanvasGradient */
			if (value instanceof CanvasGradient) {
				value = defaults.global.defaultColor;
			}

			return color(value);
		};

	helpers.getHoverColor = function(colorValue) {
		/* global CanvasPattern */
		return (colorValue instanceof CanvasPattern) ?
			colorValue :
			helpers.color(colorValue).saturate(0.5).darken(0.1).rgbString();
	};
};

},{"2":2,"25":25,"45":45}],28:[function(require,module,exports){
'use strict';

var helpers = require(45);

/**
 * Helper function to get relative position for an event
 * @param {Event|IEvent} event - The event to get the position for
 * @param {Chart} chart - The chart
 * @returns {Point} the event position
 */
function getRelativePosition(e, chart) {
	if (e.native) {
		return {
			x: e.x,
			y: e.y
		};
	}

	return helpers.getRelativePosition(e, chart);
}

/**
 * Helper function to traverse all of the visible elements in the chart
 * @param chart {chart} the chart
 * @param handler {Function} the callback to execute for each visible item
 */
function parseVisibleItems(chart, handler) {
	var datasets = chart.data.datasets;
	var meta, i, j, ilen, jlen;

	for (i = 0, ilen = datasets.length; i < ilen; ++i) {
		if (!chart.isDatasetVisible(i)) {
			continue;
		}

		meta = chart.getDatasetMeta(i);
		for (j = 0, jlen = meta.data.length; j < jlen; ++j) {
			var element = meta.data[j];
			if (!element._view.skip) {
				handler(element);
			}
		}
	}
}

/**
 * Helper function to get the items that intersect the event position
 * @param items {ChartElement[]} elements to filter
 * @param position {Point} the point to be nearest to
 * @return {ChartElement[]} the nearest items
 */
function getIntersectItems(chart, position) {
	var elements = [];

	parseVisibleItems(chart, function(element) {
		if (element.inRange(position.x, position.y)) {
			elements.push(element);
		}
	});

	return elements;
}

/**
 * Helper function to get the items nearest to the event position considering all visible items in teh chart
 * @param chart {Chart} the chart to look at elements from
 * @param position {Point} the point to be nearest to
 * @param intersect {Boolean} if true, only consider items that intersect the position
 * @param distanceMetric {Function} function to provide the distance between points
 * @return {ChartElement[]} the nearest items
 */
function getNearestItems(chart, position, intersect, distanceMetric) {
	var minDistance = Number.POSITIVE_INFINITY;
	var nearestItems = [];

	parseVisibleItems(chart, function(element) {
		if (intersect && !element.inRange(position.x, position.y)) {
			return;
		}

		var center = element.getCenterPoint();
		var distance = distanceMetric(position, center);

		if (distance < minDistance) {
			nearestItems = [element];
			minDistance = distance;
		} else if (distance === minDistance) {
			// Can have multiple items at the same distance in which case we sort by size
			nearestItems.push(element);
		}
	});

	return nearestItems;
}

/**
 * Get a distance metric function for two points based on the
 * axis mode setting
 * @param {String} axis the axis mode. x|y|xy
 */
function getDistanceMetricForAxis(axis) {
	var useX = axis.indexOf('x') !== -1;
	var useY = axis.indexOf('y') !== -1;

	return function(pt1, pt2) {
		var deltaX = useX ? Math.abs(pt1.x - pt2.x) : 0;
		var deltaY = useY ? Math.abs(pt1.y - pt2.y) : 0;
		return Math.sqrt(Math.pow(deltaX, 2) + Math.pow(deltaY, 2));
	};
}

function indexMode(chart, e, options) {
	var position = getRelativePosition(e, chart);
	// Default axis for index mode is 'x' to match old behaviour
	options.axis = options.axis || 'x';
	var distanceMetric = getDistanceMetricForAxis(options.axis);
	var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);
	var elements = [];

	if (!items.length) {
		return [];
	}

	chart.data.datasets.forEach(function(dataset, datasetIndex) {
		if (chart.isDatasetVisible(datasetIndex)) {
			var meta = chart.getDatasetMeta(datasetIndex);
			var element = meta.data[items[0]._index];

			// don't count items that are skipped (null data)
			if (element && !element._view.skip) {
				elements.push(element);
			}
		}
	});

	return elements;
}

/**
 * @interface IInteractionOptions
 */
/**
 * If true, only consider items that intersect the point
 * @name IInterfaceOptions#boolean
 * @type Boolean
 */

/**
 * Contains interaction related functions
 * @namespace Chart.Interaction
 */
module.exports = {
	// Helper function for different modes
	modes: {
		single: function(chart, e) {
			var position = getRelativePosition(e, chart);
			var elements = [];

			parseVisibleItems(chart, function(element) {
				if (element.inRange(position.x, position.y)) {
					elements.push(element);
					return elements;
				}
			});

			return elements.slice(0, 1);
		},

		/**
		 * @function Chart.Interaction.modes.label
		 * @deprecated since version 2.4.0
		 * @todo remove at version 3
		 * @private
		 */
		label: indexMode,

		/**
		 * Returns items at the same index. If the options.intersect parameter is true, we only return items if we intersect something
		 * If the options.intersect mode is false, we find the nearest item and return the items at the same index as that item
		 * @function Chart.Interaction.modes.index
		 * @since v2.4.0
		 * @param chart {chart} the chart we are returning items from
		 * @param e {Event} the event we are find things at
		 * @param options {IInteractionOptions} options to use during interaction
		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
		 */
		index: indexMode,

		/**
		 * Returns items in the same dataset. If the options.intersect parameter is true, we only return items if we intersect something
		 * If the options.intersect is false, we find the nearest item and return the items in that dataset
		 * @function Chart.Interaction.modes.dataset
		 * @param chart {chart} the chart we are returning items from
		 * @param e {Event} the event we are find things at
		 * @param options {IInteractionOptions} options to use during interaction
		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
		 */
		dataset: function(chart, e, options) {
			var position = getRelativePosition(e, chart);
			options.axis = options.axis || 'xy';
			var distanceMetric = getDistanceMetricForAxis(options.axis);
			var items = options.intersect ? getIntersectItems(chart, position) : getNearestItems(chart, position, false, distanceMetric);

			if (items.length > 0) {
				items = chart.getDatasetMeta(items[0]._datasetIndex).data;
			}

			return items;
		},

		/**
		 * @function Chart.Interaction.modes.x-axis
		 * @deprecated since version 2.4.0. Use index mode and intersect == true
		 * @todo remove at version 3
		 * @private
		 */
		'x-axis': function(chart, e) {
			return indexMode(chart, e, {intersect: true});
		},

		/**
		 * Point mode returns all elements that hit test based on the event position
		 * of the event
		 * @function Chart.Interaction.modes.intersect
		 * @param chart {chart} the chart we are returning items from
		 * @param e {Event} the event we are find things at
		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
		 */
		point: function(chart, e) {
			var position = getRelativePosition(e, chart);
			return getIntersectItems(chart, position);
		},

		/**
		 * nearest mode returns the element closest to the point
		 * @function Chart.Interaction.modes.intersect
		 * @param chart {chart} the chart we are returning items from
		 * @param e {Event} the event we are find things at
		 * @param options {IInteractionOptions} options to use
		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
		 */
		nearest: function(chart, e, options) {
			var position = getRelativePosition(e, chart);
			options.axis = options.axis || 'xy';
			var distanceMetric = getDistanceMetricForAxis(options.axis);
			var nearestItems = getNearestItems(chart, position, options.intersect, distanceMetric);

			// We have multiple items at the same distance from the event. Now sort by smallest
			if (nearestItems.length > 1) {
				nearestItems.sort(function(a, b) {
					var sizeA = a.getArea();
					var sizeB = b.getArea();
					var ret = sizeA - sizeB;

					if (ret === 0) {
						// if equal sort by dataset index
						ret = a._datasetIndex - b._datasetIndex;
					}

					return ret;
				});
			}

			// Return only 1 item
			return nearestItems.slice(0, 1);
		},

		/**
		 * x mode returns the elements that hit-test at the current x coordinate
		 * @function Chart.Interaction.modes.x
		 * @param chart {chart} the chart we are returning items from
		 * @param e {Event} the event we are find things at
		 * @param options {IInteractionOptions} options to use
		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
		 */
		x: function(chart, e, options) {
			var position = getRelativePosition(e, chart);
			var items = [];
			var intersectsItem = false;

			parseVisibleItems(chart, function(element) {
				if (element.inXRange(position.x)) {
					items.push(element);
				}

				if (element.inRange(position.x, position.y)) {
					intersectsItem = true;
				}
			});

			// If we want to trigger on an intersect and we don't have any items
			// that intersect the position, return nothing
			if (options.intersect && !intersectsItem) {
				items = [];
			}
			return items;
		},

		/**
		 * y mode returns the elements that hit-test at the current y coordinate
		 * @function Chart.Interaction.modes.y
		 * @param chart {chart} the chart we are returning items from
		 * @param e {Event} the event we are find things at
		 * @param options {IInteractionOptions} options to use
		 * @return {Chart.Element[]} Array of elements that are under the point. If none are found, an empty array is returned
		 */
		y: function(chart, e, options) {
			var position = getRelativePosition(e, chart);
			var items = [];
			var intersectsItem = false;

			parseVisibleItems(chart, function(element) {
				if (element.inYRange(position.y)) {
					items.push(element);
				}

				if (element.inRange(position.x, position.y)) {
					intersectsItem = true;
				}
			});

			// If we want to trigger on an intersect and we don't have any items
			// that intersect the position, return nothing
			if (options.intersect && !intersectsItem) {
				items = [];
			}
			return items;
		}
	}
};

},{"45":45}],29:[function(require,module,exports){
'use strict';

var defaults = require(25);

defaults._set('global', {
	responsive: true,
	responsiveAnimationDuration: 0,
	maintainAspectRatio: true,
	events: ['mousemove', 'mouseout', 'click', 'touchstart', 'touchmove'],
	hover: {
		onHover: null,
		mode: 'nearest',
		intersect: true,
		animationDuration: 400
	},
	onClick: null,
	defaultColor: 'rgba(0,0,0,0.1)',
	defaultFontColor: '#666',
	defaultFontFamily: "'Helvetica Neue', 'Helvetica', 'Arial', sans-serif",
	defaultFontSize: 12,
	defaultFontStyle: 'normal',
	showLines: true,

	// Element defaults defined in element extensions
	elements: {},

	// Layout options such as padding
	layout: {
		padding: {
			top: 0,
			right: 0,
			bottom: 0,
			left: 0
		}
	}
});

module.exports = function() {

	// Occupy the global variable of Chart, and create a simple base class
	var Chart = function(item, config) {
		this.construct(item, config);
		return this;
	};

	Chart.Chart = Chart;

	return Chart;
};

},{"25":25}],30:[function(require,module,exports){
'use strict';

var helpers = require(45);

module.exports = function(Chart) {

	function filterByPosition(array, position) {
		return helpers.where(array, function(v) {
			return v.position === position;
		});
	}

	function sortByWeight(array, reverse) {
		array.forEach(function(v, i) {
			v._tmpIndex_ = i;
			return v;
		});
		array.sort(function(a, b) {
			var v0 = reverse ? b : a;
			var v1 = reverse ? a : b;
			return v0.weight === v1.weight ?
				v0._tmpIndex_ - v1._tmpIndex_ :
				v0.weight - v1.weight;
		});
		array.forEach(function(v) {
			delete v._tmpIndex_;
		});
	}

	/**
	 * @interface ILayoutItem
	 * @prop {String} position - The position of the item in the chart layout. Possible values are
	 * 'left', 'top', 'right', 'bottom', and 'chartArea'
	 * @prop {Number} weight - The weight used to sort the item. Higher weights are further away from the chart area
	 * @prop {Boolean} fullWidth - if true, and the item is horizontal, then push vertical boxes down
	 * @prop {Function} isHorizontal - returns true if the layout item is horizontal (ie. top or bottom)
	 * @prop {Function} update - Takes two parameters: width and height. Returns size of item
	 * @prop {Function} getPadding -  Returns an object with padding on the edges
	 * @prop {Number} width - Width of item. Must be valid after update()
	 * @prop {Number} height - Height of item. Must be valid after update()
	 * @prop {Number} left - Left edge of the item. Set by layout system and cannot be used in update
	 * @prop {Number} top - Top edge of the item. Set by layout system and cannot be used in update
	 * @prop {Number} right - Right edge of the item. Set by layout system and cannot be used in update
	 * @prop {Number} bottom - Bottom edge of the item. Set by layout system and cannot be used in update
	 */

	// The layout service is very self explanatory.  It's responsible for the layout within a chart.
	// Scales, Legends and Plugins all rely on the layout service and can easily register to be placed anywhere they need
	// It is this service's responsibility of carrying out that layout.
	Chart.layoutService = {
		defaults: {},

		/**
		 * Register a box to a chart.
		 * A box is simply a reference to an object that requires layout. eg. Scales, Legend, Title.
		 * @param {Chart} chart - the chart to use
		 * @param {ILayoutItem} item - the item to add to be layed out
		 */
		addBox: function(chart, item) {
			if (!chart.boxes) {
				chart.boxes = [];
			}

			// initialize item with default values
			item.fullWidth = item.fullWidth || false;
			item.position = item.position || 'top';
			item.weight = item.weight || 0;

			chart.boxes.push(item);
		},

		/**
		 * Remove a layoutItem from a chart
		 * @param {Chart} chart - the chart to remove the box from
		 * @param {Object} layoutItem - the item to remove from the layout
		 */
		removeBox: function(chart, layoutItem) {
			var index = chart.boxes ? chart.boxes.indexOf(layoutItem) : -1;
			if (index !== -1) {
				chart.boxes.splice(index, 1);
			}
		},

		/**
		 * Sets (or updates) options on the given `item`.
		 * @param {Chart} chart - the chart in which the item lives (or will be added to)
		 * @param {Object} item - the item to configure with the given options
		 * @param {Object} options - the new item options.
		 */
		configure: function(chart, item, options) {
			var props = ['fullWidth', 'position', 'weight'];
			var ilen = props.length;
			var i = 0;
			var prop;

			for (; i < ilen; ++i) {
				prop = props[i];
				if (options.hasOwnProperty(prop)) {
					item[prop] = options[prop];
				}
			}
		},

		/**
		 * Fits boxes of the given chart into the given size by having each box measure itself
		 * then running a fitting algorithm
		 * @param {Chart} chart - the chart
		 * @param {Number} width - the width to fit into
		 * @param {Number} height - the height to fit into
		 */
		update: function(chart, width, height) {
			if (!chart) {
				return;
			}

			var layoutOptions = chart.options.layout || {};
			var padding = helpers.options.toPadding(layoutOptions.padding);
			var leftPadding = padding.left;
			var rightPadding = padding.right;
			var topPadding = padding.top;
			var bottomPadding = padding.bottom;

			var leftBoxes = filterByPosition(chart.boxes, 'left');
			var rightBoxes = filterByPosition(chart.boxes, 'right');
			var topBoxes = filterByPosition(chart.boxes, 'top');
			var bottomBoxes = filterByPosition(chart.boxes, 'bottom');
			var chartAreaBoxes = filterByPosition(chart.boxes, 'chartArea');

			// Sort boxes by weight. A higher weight is further away from the chart area
			sortByWeight(leftBoxes, true);
			sortByWeight(rightBoxes, false);
			sortByWeight(topBoxes, true);
			sortByWeight(bottomBoxes, false);

			// Essentially we now have any number of boxes on each of the 4 sides.
			// Our canvas looks like the following.
			// The areas L1 and L2 are the left axes. R1 is the right axis, T1 is the top axis and
			// B1 is the bottom axis
			// There are also 4 quadrant-like locations (left to right instead of clockwise) reserved for chart overlays
			// These locations are single-box locations only, when trying to register a chartArea location that is already taken,
			// an error will be thrown.
			//
			// |----------------------------------------------------|
			// |                  T1 (Full Width)                   |
			// |----------------------------------------------------|
			// |    |    |                 T2                  |    |
			// |    |----|-------------------------------------|----|
			// |    |    | C1 |                           | C2 |    |
			// |    |    |----|                           |----|    |
			// |    |    |                                     |    |
			// | L1 | L2 |           ChartArea (C0)            | R1 |
			// |    |    |                                     |    |
			// |    |    |----|                           |----|    |
			// |    |    | C3 |                           | C4 |    |
			// |    |----|-------------------------------------|----|
			// |    |    |                 B1                  |    |
			// |----------------------------------------------------|
			// |                  B2 (Full Width)                   |
			// |----------------------------------------------------|
			//
			// What we do to find the best sizing, we do the following
			// 1. Determine the minimum size of the chart area.
			// 2. Split the remaining width equally between each vertical axis
			// 3. Split the remaining height equally between each horizontal axis
			// 4. Give each layout the maximum size it can be. The layout will return it's minimum size
			// 5. Adjust the sizes of each axis based on it's minimum reported size.
			// 6. Refit each axis
			// 7. Position each axis in the final location
			// 8. Tell the chart the final location of the chart area
			// 9. Tell any axes that overlay the chart area the positions of the chart area

			// Step 1
			var chartWidth = width - leftPadding - rightPadding;
			var chartHeight = height - topPadding - bottomPadding;
			var chartAreaWidth = chartWidth / 2; // min 50%
			var chartAreaHeight = chartHeight / 2; // min 50%

			// Step 2
			var verticalBoxWidth = (width - chartAreaWidth) / (leftBoxes.length + rightBoxes.length);

			// Step 3
			var horizontalBoxHeight = (height - chartAreaHeight) / (topBoxes.length + bottomBoxes.length);

			// Step 4
			var maxChartAreaWidth = chartWidth;
			var maxChartAreaHeight = chartHeight;
			var minBoxSizes = [];

			function getMinimumBoxSize(box) {
				var minSize;
				var isHorizontal = box.isHorizontal();

				if (isHorizontal) {
					minSize = box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, horizontalBoxHeight);
					maxChartAreaHeight -= minSize.height;
				} else {
					minSize = box.update(verticalBoxWidth, chartAreaHeight);
					maxChartAreaWidth -= minSize.width;
				}

				minBoxSizes.push({
					horizontal: isHorizontal,
					minSize: minSize,
					box: box,
				});
			}

			helpers.each(leftBoxes.concat(rightBoxes, topBoxes, bottomBoxes), getMinimumBoxSize);

			// If a horizontal box has padding, we move the left boxes over to avoid ugly charts (see issue #2478)
			var maxHorizontalLeftPadding = 0;
			var maxHorizontalRightPadding = 0;
			var maxVerticalTopPadding = 0;
			var maxVerticalBottomPadding = 0;

			helpers.each(topBoxes.concat(bottomBoxes), function(horizontalBox) {
				if (horizontalBox.getPadding) {
					var boxPadding = horizontalBox.getPadding();
					maxHorizontalLeftPadding = Math.max(maxHorizontalLeftPadding, boxPadding.left);
					maxHorizontalRightPadding = Math.max(maxHorizontalRightPadding, boxPadding.right);
				}
			});

			helpers.each(leftBoxes.concat(rightBoxes), function(verticalBox) {
				if (verticalBox.getPadding) {
					var boxPadding = verticalBox.getPadding();
					maxVerticalTopPadding = Math.max(maxVerticalTopPadding, boxPadding.top);
					maxVerticalBottomPadding = Math.max(maxVerticalBottomPadding, boxPadding.bottom);
				}
			});

			// At this point, maxChartAreaHeight and maxChartAreaWidth are the size the chart area could
			// be if the axes are drawn at their minimum sizes.
			// Steps 5 & 6
			var totalLeftBoxesWidth = leftPadding;
			var totalRightBoxesWidth = rightPadding;
			var totalTopBoxesHeight = topPadding;
			var totalBottomBoxesHeight = bottomPadding;

			// Function to fit a box
			function fitBox(box) {
				var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minBox) {
					return minBox.box === box;
				});

				if (minBoxSize) {
					if (box.isHorizontal()) {
						var scaleMargin = {
							left: Math.max(totalLeftBoxesWidth, maxHorizontalLeftPadding),
							right: Math.max(totalRightBoxesWidth, maxHorizontalRightPadding),
							top: 0,
							bottom: 0
						};

						// Don't use min size here because of label rotation. When the labels are rotated, their rotation highly depends
						// on the margin. Sometimes they need to increase in size slightly
						box.update(box.fullWidth ? chartWidth : maxChartAreaWidth, chartHeight / 2, scaleMargin);
					} else {
						box.update(minBoxSize.minSize.width, maxChartAreaHeight);
					}
				}
			}

			// Update, and calculate the left and right margins for the horizontal boxes
			helpers.each(leftBoxes.concat(rightBoxes), fitBox);

			helpers.each(leftBoxes, function(box) {
				totalLeftBoxesWidth += box.width;
			});

			helpers.each(rightBoxes, function(box) {
				totalRightBoxesWidth += box.width;
			});

			// Set the Left and Right margins for the horizontal boxes
			helpers.each(topBoxes.concat(bottomBoxes), fitBox);

			// Figure out how much margin is on the top and bottom of the vertical boxes
			helpers.each(topBoxes, function(box) {
				totalTopBoxesHeight += box.height;
			});

			helpers.each(bottomBoxes, function(box) {
				totalBottomBoxesHeight += box.height;
			});

			function finalFitVerticalBox(box) {
				var minBoxSize = helpers.findNextWhere(minBoxSizes, function(minSize) {
					return minSize.box === box;
				});

				var scaleMargin = {
					left: 0,
					right: 0,
					top: totalTopBoxesHeight,
					bottom: totalBottomBoxesHeight
				};

				if (minBoxSize) {
					box.update(minBoxSize.minSize.width, maxChartAreaHeight, scaleMargin);
				}
			}

			// Let the left layout know the final margin
			helpers.each(leftBoxes.concat(rightBoxes), finalFitVerticalBox);

			// Recalculate because the size of each layout might have changed slightly due to the margins (label rotation for instance)
			totalLeftBoxesWidth = leftPadding;
			totalRightBoxesWidth = rightPadding;
			totalTopBoxesHeight = topPadding;
			totalBottomBoxesHeight = bottomPadding;

			helpers.each(leftBoxes, function(box) {
				totalLeftBoxesWidth += box.width;
			});

			helpers.each(rightBoxes, function(box) {
				totalRightBoxesWidth += box.width;
			});

			helpers.each(topBoxes, function(box) {
				totalTopBoxesHeight += box.height;
			});
			helpers.each(bottomBoxes, function(box) {
				totalBottomBoxesHeight += box.height;
			});

			// We may be adding some padding to account for rotated x axis labels
			var leftPaddingAddition = Math.max(maxHorizontalLeftPadding - totalLeftBoxesWidth, 0);
			totalLeftBoxesWidth += leftPaddingAddition;
			totalRightBoxesWidth += Math.max(maxHorizontalRightPadding - totalRightBoxesWidth, 0);

			var topPaddingAddition = Math.max(maxVerticalTopPadding - totalTopBoxesHeight, 0);
			totalTopBoxesHeight += topPaddingAddition;
			totalBottomBoxesHeight += Math.max(maxVerticalBottomPadding - totalBottomBoxesHeight, 0);

			// Figure out if our chart area changed. This would occur if the dataset layout label rotation
			// changed due to the application of the margins in step 6. Since we can only get bigger, this is safe to do
			// without calling `fit` again
			var newMaxChartAreaHeight = height - totalTopBoxesHeight - totalBottomBoxesHeight;
			var newMaxChartAreaWidth = width - totalLeftBoxesWidth - totalRightBoxesWidth;

			if (newMaxChartAreaWidth !== maxChartAreaWidth || newMaxChartAreaHeight !== maxChartAreaHeight) {
				helpers.each(leftBoxes, function(box) {
					box.height = newMaxChartAreaHeight;
				});

				helpers.each(rightBoxes, function(box) {
					box.height = newMaxChartAreaHeight;
				});

				helpers.each(topBoxes, function(box) {
					if (!box.fullWidth) {
						box.width = newMaxChartAreaWidth;
					}
				});

				helpers.each(bottomBoxes, function(box) {
					if (!box.fullWidth) {
						box.width = newMaxChartAreaWidth;
					}
				});

				maxChartAreaHeight = newMaxChartAreaHeight;
				maxChartAreaWidth = newMaxChartAreaWidth;
			}

			// Step 7 - Position the boxes
			var left = leftPadding + leftPaddingAddition;
			var top = topPadding + topPaddingAddition;

			function placeBox(box) {
				if (box.isHorizontal()) {
					box.left = box.fullWidth ? leftPadding : totalLeftBoxesWidth;
					box.right = box.fullWidth ? width - rightPadding : totalLeftBoxesWidth + maxChartAreaWidth;
					box.top = top;
					box.bottom = top + box.height;

					// Move to next point
					top = box.bottom;

				} else {

					box.left = left;
					box.right = left + box.width;
					box.top = totalTopBoxesHeight;
					box.bottom = totalTopBoxesHeight + maxChartAreaHeight;

					// Move to next point
					left = box.right;
				}
			}

			helpers.each(leftBoxes.concat(topBoxes), placeBox);

			// Account for chart width and height
			left += maxChartAreaWidth;
			top += maxChartAreaHeight;

			helpers.each(rightBoxes, placeBox);
			helpers.each(bottomBoxes, placeBox);

			// Step 8
			chart.chartArea = {
				left: totalLeftBoxesWidth,
				top: totalTopBoxesHeight,
				right: totalLeftBoxesWidth + maxChartAreaWidth,
				bottom: totalTopBoxesHeight + maxChartAreaHeight
			};

			// Step 9
			helpers.each(chartAreaBoxes, function(box) {
				box.left = chart.chartArea.left;
				box.top = chart.chartArea.top;
				box.right = chart.chartArea.right;
				box.bottom = chart.chartArea.bottom;

				box.update(maxChartAreaWidth, maxChartAreaHeight);
			});
		}
	};
};

},{"45":45}],31:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

defaults._set('global', {
	plugins: {}
});

module.exports = function(Chart) {

	/**
	 * The plugin service singleton
	 * @namespace Chart.plugins
	 * @since 2.1.0
	 */
	Chart.plugins = {
		/**
		 * Globally registered plugins.
		 * @private
		 */
		_plugins: [],

		/**
		 * This identifier is used to invalidate the descriptors cache attached to each chart
		 * when a global plugin is registered or unregistered. In this case, the cache ID is
		 * incremented and descriptors are regenerated during following API calls.
		 * @private
		 */
		_cacheId: 0,

		/**
		 * Registers the given plugin(s) if not already registered.
		 * @param {Array|Object} plugins plugin instance(s).
		 */
		register: function(plugins) {
			var p = this._plugins;
			([]).concat(plugins).forEach(function(plugin) {
				if (p.indexOf(plugin) === -1) {
					p.push(plugin);
				}
			});

			this._cacheId++;
		},

		/**
		 * Unregisters the given plugin(s) only if registered.
		 * @param {Array|Object} plugins plugin instance(s).
		 */
		unregister: function(plugins) {
			var p = this._plugins;
			([]).concat(plugins).forEach(function(plugin) {
				var idx = p.indexOf(plugin);
				if (idx !== -1) {
					p.splice(idx, 1);
				}
			});

			this._cacheId++;
		},

		/**
		 * Remove all registered plugins.
		 * @since 2.1.5
		 */
		clear: function() {
			this._plugins = [];
			this._cacheId++;
		},

		/**
		 * Returns the number of registered plugins?
		 * @returns {Number}
		 * @since 2.1.5
		 */
		count: function() {
			return this._plugins.length;
		},

		/**
		 * Returns all registered plugin instances.
		 * @returns {Array} array of plugin objects.
		 * @since 2.1.5
		 */
		getAll: function() {
			return this._plugins;
		},

		/**
		 * Calls enabled plugins for `chart` on the specified hook and with the given args.
		 * This method immediately returns as soon as a plugin explicitly returns false. The
		 * returned value can be used, for instance, to interrupt the current action.
		 * @param {Object} chart - The chart instance for which plugins should be called.
		 * @param {String} hook - The name of the plugin method to call (e.g. 'beforeUpdate').
		 * @param {Array} [args] - Extra arguments to apply to the hook call.
		 * @returns {Boolean} false if any of the plugins return false, else returns true.
		 */
		notify: function(chart, hook, args) {
			var descriptors = this.descriptors(chart);
			var ilen = descriptors.length;
			var i, descriptor, plugin, params, method;

			for (i = 0; i < ilen; ++i) {
				descriptor = descriptors[i];
				plugin = descriptor.plugin;
				method = plugin[hook];
				if (typeof method === 'function') {
					params = [chart].concat(args || []);
					params.push(descriptor.options);
					if (method.apply(plugin, params) === false) {
						return false;
					}
				}
			}

			return true;
		},

		/**
		 * Returns descriptors of enabled plugins for the given chart.
		 * @returns {Array} [{ plugin, options }]
		 * @private
		 */
		descriptors: function(chart) {
			var cache = chart._plugins || (chart._plugins = {});
			if (cache.id === this._cacheId) {
				return cache.descriptors;
			}

			var plugins = [];
			var descriptors = [];
			var config = (chart && chart.config) || {};
			var options = (config.options && config.options.plugins) || {};

			this._plugins.concat(config.plugins || []).forEach(function(plugin) {
				var idx = plugins.indexOf(plugin);
				if (idx !== -1) {
					return;
				}

				var id = plugin.id;
				var opts = options[id];
				if (opts === false) {
					return;
				}

				if (opts === true) {
					opts = helpers.clone(defaults.global.plugins[id]);
				}

				plugins.push(plugin);
				descriptors.push({
					plugin: plugin,
					options: opts || {}
				});
			});

			cache.descriptors = descriptors;
			cache.id = this._cacheId;
			return descriptors;
		}
	};

	/**
	 * Plugin extension hooks.
	 * @interface IPlugin
	 * @since 2.1.0
	 */
	/**
	 * @method IPlugin#beforeInit
	 * @desc Called before initializing `chart`.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#afterInit
	 * @desc Called after `chart` has been initialized and before the first update.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeUpdate
	 * @desc Called before updating `chart`. If any plugin returns `false`, the update
	 * is cancelled (and thus subsequent render(s)) until another `update` is triggered.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart update.
	 */
	/**
	 * @method IPlugin#afterUpdate
	 * @desc Called after `chart` has been updated and before rendering. Note that this
	 * hook will not be called if the chart update has been previously cancelled.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeDatasetsUpdate
 	 * @desc Called before updating the `chart` datasets. If any plugin returns `false`,
	 * the datasets update is cancelled until another `update` is triggered.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} false to cancel the datasets update.
	 * @since version 2.1.5
	 */
	/**
	 * @method IPlugin#afterDatasetsUpdate
	 * @desc Called after the `chart` datasets have been updated. Note that this hook
	 * will not be called if the datasets update has been previously cancelled.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 * @since version 2.1.5
	 */
	/**
	 * @method IPlugin#beforeDatasetUpdate
 	 * @desc Called before updating the `chart` dataset at the given `args.index`. If any plugin
	 * returns `false`, the datasets update is cancelled until another `update` is triggered.
	 * @param {Chart} chart - The chart instance.
	 * @param {Object} args - The call arguments.
	 * @param {Number} args.index - The dataset index.
	 * @param {Object} args.meta - The dataset metadata.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart datasets drawing.
	 */
	/**
	 * @method IPlugin#afterDatasetUpdate
 	 * @desc Called after the `chart` datasets at the given `args.index` has been updated. Note
	 * that this hook will not be called if the datasets update has been previously cancelled.
	 * @param {Chart} chart - The chart instance.
	 * @param {Object} args - The call arguments.
	 * @param {Number} args.index - The dataset index.
	 * @param {Object} args.meta - The dataset metadata.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeLayout
	 * @desc Called before laying out `chart`. If any plugin returns `false`,
	 * the layout update is cancelled until another `update` is triggered.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart layout.
	 */
	/**
	 * @method IPlugin#afterLayout
	 * @desc Called after the `chart` has been layed out. Note that this hook will not
	 * be called if the layout update has been previously cancelled.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeRender
	 * @desc Called before rendering `chart`. If any plugin returns `false`,
	 * the rendering is cancelled until another `render` is triggered.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart rendering.
	 */
	/**
	 * @method IPlugin#afterRender
	 * @desc Called after the `chart` has been fully rendered (and animation completed). Note
	 * that this hook will not be called if the rendering has been previously cancelled.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeDraw
	 * @desc Called before drawing `chart` at every animation frame specified by the given
	 * easing value. If any plugin returns `false`, the frame drawing is cancelled until
	 * another `render` is triggered.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart drawing.
	 */
	/**
	 * @method IPlugin#afterDraw
	 * @desc Called after the `chart` has been drawn for the specific easing value. Note
	 * that this hook will not be called if the drawing has been previously cancelled.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeDatasetsDraw
 	 * @desc Called before drawing the `chart` datasets. If any plugin returns `false`,
	 * the datasets drawing is cancelled until another `render` is triggered.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart datasets drawing.
	 */
	/**
	 * @method IPlugin#afterDatasetsDraw
	 * @desc Called after the `chart` datasets have been drawn. Note that this hook
	 * will not be called if the datasets drawing has been previously cancelled.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Number} easingValue - The current animation value, between 0.0 and 1.0.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeDatasetDraw
 	 * @desc Called before drawing the `chart` dataset at the given `args.index` (datasets
	 * are drawn in the reverse order). If any plugin returns `false`, the datasets drawing
	 * is cancelled until another `render` is triggered.
	 * @param {Chart} chart - The chart instance.
	 * @param {Object} args - The call arguments.
	 * @param {Number} args.index - The dataset index.
	 * @param {Object} args.meta - The dataset metadata.
	 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
	 * @param {Object} options - The plugin options.
	 * @returns {Boolean} `false` to cancel the chart datasets drawing.
	 */
	/**
	 * @method IPlugin#afterDatasetDraw
 	 * @desc Called after the `chart` datasets at the given `args.index` have been drawn
	 * (datasets are drawn in the reverse order). Note that this hook will not be called
	 * if the datasets drawing has been previously cancelled.
	 * @param {Chart} chart - The chart instance.
	 * @param {Object} args - The call arguments.
	 * @param {Number} args.index - The dataset index.
	 * @param {Object} args.meta - The dataset metadata.
	 * @param {Number} args.easingValue - The current animation value, between 0.0 and 1.0.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#beforeEvent
 	 * @desc Called before processing the specified `event`. If any plugin returns `false`,
	 * the event will be discarded.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {IEvent} event - The event object.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#afterEvent
	 * @desc Called after the `event` has been consumed. Note that this hook
	 * will not be called if the `event` has been previously discarded.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {IEvent} event - The event object.
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#resize
	 * @desc Called after the chart as been resized.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Number} size - The new canvas display size (eq. canvas.style width & height).
	 * @param {Object} options - The plugin options.
	 */
	/**
	 * @method IPlugin#destroy
	 * @desc Called after the chart as been destroyed.
	 * @param {Chart.Controller} chart - The chart instance.
	 * @param {Object} options - The plugin options.
	 */

	/**
	 * Provided for backward compatibility, use Chart.plugins instead
	 * @namespace Chart.pluginService
	 * @deprecated since version 2.1.5
	 * @todo remove at version 3
	 * @private
	 */
	Chart.pluginService = Chart.plugins;

	/**
	 * Provided for backward compatibility, inheriting from Chart.PlugingBase has no
	 * effect, instead simply create/register plugins via plain JavaScript objects.
	 * @interface Chart.PluginBase
	 * @deprecated since version 2.5.0
	 * @todo remove at version 3
	 * @private
	 */
	Chart.PluginBase = Element.extend({});
};

},{"25":25,"26":26,"45":45}],32:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);
var Ticks = require(34);

defaults._set('scale', {
	display: true,
	position: 'left',
	offset: false,

	// grid line settings
	gridLines: {
		display: true,
		color: 'rgba(0, 0, 0, 0.1)',
		lineWidth: 1,
		drawBorder: true,
		drawOnChartArea: true,
		drawTicks: true,
		tickMarkLength: 10,
		zeroLineWidth: 1,
		zeroLineColor: 'rgba(0,0,0,0.25)',
		zeroLineBorderDash: [],
		zeroLineBorderDashOffset: 0.0,
		offsetGridLines: false,
		borderDash: [],
		borderDashOffset: 0.0
	},

	// scale label
	scaleLabel: {
		// display property
		display: false,

		// actual label
		labelString: '',

		// line height
		lineHeight: 1.2,

		// top/bottom padding
		padding: {
			top: 4,
			bottom: 4
		}
	},

	// label settings
	ticks: {
		beginAtZero: false,
		minRotation: 0,
		maxRotation: 50,
		mirror: false,
		padding: 0,
		reverse: false,
		display: true,
		autoSkip: true,
		autoSkipPadding: 0,
		labelOffset: 0,
		// We pass through arrays to be rendered as multiline labels, we convert Others to strings here.
		callback: Ticks.formatters.values,
		minor: {},
		major: {}
	}
});

function labelsFromTicks(ticks) {
	var labels = [];
	var i, ilen;

	for (i = 0, ilen = ticks.length; i < ilen; ++i) {
		labels.push(ticks[i].label);
	}

	return labels;
}

function getLineValue(scale, index, offsetGridLines) {
	var lineValue = scale.getPixelForTick(index);

	if (offsetGridLines) {
		if (index === 0) {
			lineValue -= (scale.getPixelForTick(1) - lineValue) / 2;
		} else {
			lineValue -= (lineValue - scale.getPixelForTick(index - 1)) / 2;
		}
	}
	return lineValue;
}

module.exports = function(Chart) {

	function computeTextSize(context, tick, font) {
		return helpers.isArray(tick) ?
			helpers.longestText(context, font, tick) :
			context.measureText(tick).width;
	}

	function parseFontOptions(options) {
		var valueOrDefault = helpers.valueOrDefault;
		var globalDefaults = defaults.global;
		var size = valueOrDefault(options.fontSize, globalDefaults.defaultFontSize);
		var style = valueOrDefault(options.fontStyle, globalDefaults.defaultFontStyle);
		var family = valueOrDefault(options.fontFamily, globalDefaults.defaultFontFamily);

		return {
			size: size,
			style: style,
			family: family,
			font: helpers.fontString(size, style, family)
		};
	}

	function parseLineHeight(options) {
		return helpers.options.toLineHeight(
			helpers.valueOrDefault(options.lineHeight, 1.2),
			helpers.valueOrDefault(options.fontSize, defaults.global.defaultFontSize));
	}

	Chart.Scale = Element.extend({
		/**
		 * Get the padding needed for the scale
		 * @method getPadding
		 * @private
		 * @returns {Padding} the necessary padding
		 */
		getPadding: function() {
			var me = this;
			return {
				left: me.paddingLeft || 0,
				top: me.paddingTop || 0,
				right: me.paddingRight || 0,
				bottom: me.paddingBottom || 0
			};
		},

		/**
		 * Returns the scale tick objects ({label, major})
		 * @since 2.7
		 */
		getTicks: function() {
			return this._ticks;
		},

		// These methods are ordered by lifecyle. Utilities then follow.
		// Any function defined here is inherited by all scale types.
		// Any function can be extended by the scale type

		mergeTicksOptions: function() {
			var ticks = this.options.ticks;
			if (ticks.minor === false) {
				ticks.minor = {
					display: false
				};
			}
			if (ticks.major === false) {
				ticks.major = {
					display: false
				};
			}
			for (var key in ticks) {
				if (key !== 'major' && key !== 'minor') {
					if (typeof ticks.minor[key] === 'undefined') {
						ticks.minor[key] = ticks[key];
					}
					if (typeof ticks.major[key] === 'undefined') {
						ticks.major[key] = ticks[key];
					}
				}
			}
		},
		beforeUpdate: function() {
			helpers.callback(this.options.beforeUpdate, [this]);
		},
		update: function(maxWidth, maxHeight, margins) {
			var me = this;
			var i, ilen, labels, label, ticks, tick;

			// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
			me.beforeUpdate();

			// Absorb the master measurements
			me.maxWidth = maxWidth;
			me.maxHeight = maxHeight;
			me.margins = helpers.extend({
				left: 0,
				right: 0,
				top: 0,
				bottom: 0
			}, margins);
			me.longestTextCache = me.longestTextCache || {};

			// Dimensions
			me.beforeSetDimensions();
			me.setDimensions();
			me.afterSetDimensions();

			// Data min/max
			me.beforeDataLimits();
			me.determineDataLimits();
			me.afterDataLimits();

			// Ticks - `this.ticks` is now DEPRECATED!
			// Internal ticks are now stored as objects in the PRIVATE `this._ticks` member
			// and must not be accessed directly from outside this class. `this.ticks` being
			// around for long time and not marked as private, we can't change its structure
			// without unexpected breaking changes. If you need to access the scale ticks,
			// use scale.getTicks() instead.

			me.beforeBuildTicks();

			// New implementations should return an array of objects but for BACKWARD COMPAT,
			// we still support no return (`this.ticks` internally set by calling this method).
			ticks = me.buildTicks() || [];

			me.afterBuildTicks();

			me.beforeTickToLabelConversion();

			// New implementations should return the formatted tick labels but for BACKWARD
			// COMPAT, we still support no return (`this.ticks` internally changed by calling
			// this method and supposed to contain only string values).
			labels = me.convertTicksToLabels(ticks) || me.ticks;

			me.afterTickToLabelConversion();

			me.ticks = labels;   // BACKWARD COMPATIBILITY

			// IMPORTANT: from this point, we consider that `this.ticks` will NEVER change!

			// BACKWARD COMPAT: synchronize `_ticks` with labels (so potentially `this.ticks`)
			for (i = 0, ilen = labels.length; i < ilen; ++i) {
				label = labels[i];
				tick = ticks[i];
				if (!tick) {
					ticks.push(tick = {
						label: label,
						major: false
					});
				} else {
					tick.label = label;
				}
			}

			me._ticks = ticks;

			// Tick Rotation
			me.beforeCalculateTickRotation();
			me.calculateTickRotation();
			me.afterCalculateTickRotation();
			// Fit
			me.beforeFit();
			me.fit();
			me.afterFit();
			//
			me.afterUpdate();

			return me.minSize;

		},
		afterUpdate: function() {
			helpers.callback(this.options.afterUpdate, [this]);
		},

		//

		beforeSetDimensions: function() {
			helpers.callback(this.options.beforeSetDimensions, [this]);
		},
		setDimensions: function() {
			var me = this;
			// Set the unconstrained dimension before label rotation
			if (me.isHorizontal()) {
				// Reset position before calculating rotation
				me.width = me.maxWidth;
				me.left = 0;
				me.right = me.width;
			} else {
				me.height = me.maxHeight;

				// Reset position before calculating rotation
				me.top = 0;
				me.bottom = me.height;
			}

			// Reset padding
			me.paddingLeft = 0;
			me.paddingTop = 0;
			me.paddingRight = 0;
			me.paddingBottom = 0;
		},
		afterSetDimensions: function() {
			helpers.callback(this.options.afterSetDimensions, [this]);
		},

		// Data limits
		beforeDataLimits: function() {
			helpers.callback(this.options.beforeDataLimits, [this]);
		},
		determineDataLimits: helpers.noop,
		afterDataLimits: function() {
			helpers.callback(this.options.afterDataLimits, [this]);
		},

		//
		beforeBuildTicks: function() {
			helpers.callback(this.options.beforeBuildTicks, [this]);
		},
		buildTicks: helpers.noop,
		afterBuildTicks: function() {
			helpers.callback(this.options.afterBuildTicks, [this]);
		},

		beforeTickToLabelConversion: function() {
			helpers.callback(this.options.beforeTickToLabelConversion, [this]);
		},
		convertTicksToLabels: function() {
			var me = this;
			// Convert ticks to strings
			var tickOpts = me.options.ticks;
			me.ticks = me.ticks.map(tickOpts.userCallback || tickOpts.callback, this);
		},
		afterTickToLabelConversion: function() {
			helpers.callback(this.options.afterTickToLabelConversion, [this]);
		},

		//

		beforeCalculateTickRotation: function() {
			helpers.callback(this.options.beforeCalculateTickRotation, [this]);
		},
		calculateTickRotation: function() {
			var me = this;
			var context = me.ctx;
			var tickOpts = me.options.ticks;
			var labels = labelsFromTicks(me._ticks);

			// Get the width of each grid by calculating the difference
			// between x offsets between 0 and 1.
			var tickFont = parseFontOptions(tickOpts);
			context.font = tickFont.font;

			var labelRotation = tickOpts.minRotation || 0;

			if (labels.length && me.options.display && me.isHorizontal()) {
				var originalLabelWidth = helpers.longestText(context, tickFont.font, labels, me.longestTextCache);
				var labelWidth = originalLabelWidth;
				var cosRotation, sinRotation;

				// Allow 3 pixels x2 padding either side for label readability
				var tickWidth = me.getPixelForTick(1) - me.getPixelForTick(0) - 6;

				// Max label rotation can be set or default to 90 - also act as a loop counter
				while (labelWidth > tickWidth && labelRotation < tickOpts.maxRotation) {
					var angleRadians = helpers.toRadians(labelRotation);
					cosRotation = Math.cos(angleRadians);
					sinRotation = Math.sin(angleRadians);

					if (sinRotation * originalLabelWidth > me.maxHeight) {
						// go back one step
						labelRotation--;
						break;
					}

					labelRotation++;
					labelWidth = cosRotation * originalLabelWidth;
				}
			}

			me.labelRotation = labelRotation;
		},
		afterCalculateTickRotation: function() {
			helpers.callback(this.options.afterCalculateTickRotation, [this]);
		},

		//

		beforeFit: function() {
			helpers.callback(this.options.beforeFit, [this]);
		},
		fit: function() {
			var me = this;
			// Reset
			var minSize = me.minSize = {
				width: 0,
				height: 0
			};

			var labels = labelsFromTicks(me._ticks);

			var opts = me.options;
			var tickOpts = opts.ticks;
			var scaleLabelOpts = opts.scaleLabel;
			var gridLineOpts = opts.gridLines;
			var display = opts.display;
			var isHorizontal = me.isHorizontal();

			var tickFont = parseFontOptions(tickOpts);
			var tickMarkLength = opts.gridLines.tickMarkLength;

			// Width
			if (isHorizontal) {
				// subtract the margins to line up with the chartArea if we are a full width scale
				minSize.width = me.isFullWidth() ? me.maxWidth - me.margins.left - me.margins.right : me.maxWidth;
			} else {
				minSize.width = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
			}

			// height
			if (isHorizontal) {
				minSize.height = display && gridLineOpts.drawTicks ? tickMarkLength : 0;
			} else {
				minSize.height = me.maxHeight; // fill all the height
			}

			// Are we showing a title for the scale?
			if (scaleLabelOpts.display && display) {
				var scaleLabelLineHeight = parseLineHeight(scaleLabelOpts);
				var scaleLabelPadding = helpers.options.toPadding(scaleLabelOpts.padding);
				var deltaHeight = scaleLabelLineHeight + scaleLabelPadding.height;

				if (isHorizontal) {
					minSize.height += deltaHeight;
				} else {
					minSize.width += deltaHeight;
				}
			}

			// Don't bother fitting the ticks if we are not showing them
			if (tickOpts.display && display) {
				var largestTextWidth = helpers.longestText(me.ctx, tickFont.font, labels, me.longestTextCache);
				var tallestLabelHeightInLines = helpers.numberOfLabelLines(labels);
				var lineSpace = tickFont.size * 0.5;
				var tickPadding = me.options.ticks.padding;

				if (isHorizontal) {
					// A horizontal axis is more constrained by the height.
					me.longestLabelWidth = largestTextWidth;

					var angleRadians = helpers.toRadians(me.labelRotation);
					var cosRotation = Math.cos(angleRadians);
					var sinRotation = Math.sin(angleRadians);

					// TODO - improve this calculation
					var labelHeight = (sinRotation * largestTextWidth)
						+ (tickFont.size * tallestLabelHeightInLines)
						+ (lineSpace * (tallestLabelHeightInLines - 1))
						+ lineSpace; // padding

					minSize.height = Math.min(me.maxHeight, minSize.height + labelHeight + tickPadding);

					me.ctx.font = tickFont.font;
					var firstLabelWidth = computeTextSize(me.ctx, labels[0], tickFont.font);
					var lastLabelWidth = computeTextSize(me.ctx, labels[labels.length - 1], tickFont.font);

					// Ensure that our ticks are always inside the canvas. When rotated, ticks are right aligned
					// which means that the right padding is dominated by the font height
					if (me.labelRotation !== 0) {
						me.paddingLeft = opts.position === 'bottom' ? (cosRotation * firstLabelWidth) + 3 : (cosRotation * lineSpace) + 3; // add 3 px to move away from canvas edges
						me.paddingRight = opts.position === 'bottom' ? (cosRotation * lineSpace) + 3 : (cosRotation * lastLabelWidth) + 3;
					} else {
						me.paddingLeft = firstLabelWidth / 2 + 3; // add 3 px to move away from canvas edges
						me.paddingRight = lastLabelWidth / 2 + 3;
					}
				} else {
					// A vertical axis is more constrained by the width. Labels are the
					// dominant factor here, so get that length first and account for padding
					if (tickOpts.mirror) {
						largestTextWidth = 0;
					} else {
						// use lineSpace for consistency with horizontal axis
						// tickPadding is not implemented for horizontal
						largestTextWidth += tickPadding + lineSpace;
					}

					minSize.width = Math.min(me.maxWidth, minSize.width + largestTextWidth);

					me.paddingTop = tickFont.size / 2;
					me.paddingBottom = tickFont.size / 2;
				}
			}

			me.handleMargins();

			me.width = minSize.width;
			me.height = minSize.height;
		},

		/**
		 * Handle margins and padding interactions
		 * @private
		 */
		handleMargins: function() {
			var me = this;
			if (me.margins) {
				me.paddingLeft = Math.max(me.paddingLeft - me.margins.left, 0);
				me.paddingTop = Math.max(me.paddingTop - me.margins.top, 0);
				me.paddingRight = Math.max(me.paddingRight - me.margins.right, 0);
				me.paddingBottom = Math.max(me.paddingBottom - me.margins.bottom, 0);
			}
		},

		afterFit: function() {
			helpers.callback(this.options.afterFit, [this]);
		},

		// Shared Methods
		isHorizontal: function() {
			return this.options.position === 'top' || this.options.position === 'bottom';
		},
		isFullWidth: function() {
			return (this.options.fullWidth);
		},

		// Get the correct value. NaN bad inputs, If the value type is object get the x or y based on whether we are horizontal or not
		getRightValue: function(rawValue) {
			// Null and undefined values first
			if (helpers.isNullOrUndef(rawValue)) {
				return NaN;
			}
			// isNaN(object) returns true, so make sure NaN is checking for a number; Discard Infinite values
			if (typeof rawValue === 'number' && !isFinite(rawValue)) {
				return NaN;
			}
			// If it is in fact an object, dive in one more level
			if (rawValue) {
				if (this.isHorizontal()) {
					if (rawValue.x !== undefined) {
						return this.getRightValue(rawValue.x);
					}
				} else if (rawValue.y !== undefined) {
					return this.getRightValue(rawValue.y);
				}
			}

			// Value is good, return it
			return rawValue;
		},

		// Used to get the value to display in the tooltip for the data at the given index
		// function getLabelForIndex(index, datasetIndex)
		getLabelForIndex: helpers.noop,

		// Used to get data value locations.  Value can either be an index or a numerical value
		getPixelForValue: helpers.noop,

		// Used to get the data value from a given pixel. This is the inverse of getPixelForValue
		getValueForPixel: helpers.noop,

		// Used for tick location, should
		getPixelForTick: function(index) {
			var me = this;
			var offset = me.options.offset;
			if (me.isHorizontal()) {
				var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
				var tickWidth = innerWidth / Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
				var pixel = (tickWidth * index) + me.paddingLeft;

				if (offset) {
					pixel += tickWidth / 2;
				}

				var finalVal = me.left + Math.round(pixel);
				finalVal += me.isFullWidth() ? me.margins.left : 0;
				return finalVal;
			}
			var innerHeight = me.height - (me.paddingTop + me.paddingBottom);
			return me.top + (index * (innerHeight / (me._ticks.length - 1)));
		},

		// Utility for getting the pixel location of a percentage of scale
		getPixelForDecimal: function(decimal) {
			var me = this;
			if (me.isHorizontal()) {
				var innerWidth = me.width - (me.paddingLeft + me.paddingRight);
				var valueOffset = (innerWidth * decimal) + me.paddingLeft;

				var finalVal = me.left + Math.round(valueOffset);
				finalVal += me.isFullWidth() ? me.margins.left : 0;
				return finalVal;
			}
			return me.top + (decimal * me.height);
		},

		getBasePixel: function() {
			return this.getPixelForValue(this.getBaseValue());
		},

		getBaseValue: function() {
			var me = this;
			var min = me.min;
			var max = me.max;

			return me.beginAtZero ? 0 :
				min < 0 && max < 0 ? max :
				min > 0 && max > 0 ? min :
				0;
		},

		/**
		 * Returns a subset of ticks to be plotted to avoid overlapping labels.
		 * @private
		 */
		_autoSkip: function(ticks) {
			var skipRatio;
			var me = this;
			var isHorizontal = me.isHorizontal();
			var optionTicks = me.options.ticks.minor;
			var tickCount = ticks.length;
			var labelRotationRadians = helpers.toRadians(me.labelRotation);
			var cosRotation = Math.cos(labelRotationRadians);
			var longestRotatedLabel = me.longestLabelWidth * cosRotation;
			var result = [];
			var i, tick, shouldSkip;

			// figure out the maximum number of gridlines to show
			var maxTicks;
			if (optionTicks.maxTicksLimit) {
				maxTicks = optionTicks.maxTicksLimit;
			}

			if (isHorizontal) {
				skipRatio = false;

				if ((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount > (me.width - (me.paddingLeft + me.paddingRight))) {
					skipRatio = 1 + Math.floor(((longestRotatedLabel + optionTicks.autoSkipPadding) * tickCount) / (me.width - (me.paddingLeft + me.paddingRight)));
				}

				// if they defined a max number of optionTicks,
				// increase skipRatio until that number is met
				if (maxTicks && tickCount > maxTicks) {
					skipRatio = Math.max(skipRatio, Math.floor(tickCount / maxTicks));
				}
			}

			for (i = 0; i < tickCount; i++) {
				tick = ticks[i];

				// Since we always show the last tick,we need may need to hide the last shown one before
				shouldSkip = (skipRatio > 1 && i % skipRatio > 0) || (i % skipRatio === 0 && i + skipRatio >= tickCount);
				if (shouldSkip && i !== tickCount - 1 || helpers.isNullOrUndef(tick.label)) {
					// leave tick in place but make sure it's not displayed (#4635)
					delete tick.label;
				}
				result.push(tick);
			}
			return result;
		},

		// Actually draw the scale on the canvas
		// @param {rectangle} chartArea : the area of the chart to draw full grid lines on
		draw: function(chartArea) {
			var me = this;
			var options = me.options;
			if (!options.display) {
				return;
			}

			var context = me.ctx;
			var globalDefaults = defaults.global;
			var optionTicks = options.ticks.minor;
			var optionMajorTicks = options.ticks.major || optionTicks;
			var gridLines = options.gridLines;
			var scaleLabel = options.scaleLabel;

			var isRotated = me.labelRotation !== 0;
			var isHorizontal = me.isHorizontal();

			var ticks = optionTicks.autoSkip ? me._autoSkip(me.getTicks()) : me.getTicks();
			var tickFontColor = helpers.valueOrDefault(optionTicks.fontColor, globalDefaults.defaultFontColor);
			var tickFont = parseFontOptions(optionTicks);
			var majorTickFontColor = helpers.valueOrDefault(optionMajorTicks.fontColor, globalDefaults.defaultFontColor);
			var majorTickFont = parseFontOptions(optionMajorTicks);

			var tl = gridLines.drawTicks ? gridLines.tickMarkLength : 0;

			var scaleLabelFontColor = helpers.valueOrDefault(scaleLabel.fontColor, globalDefaults.defaultFontColor);
			var scaleLabelFont = parseFontOptions(scaleLabel);
			var scaleLabelPadding = helpers.options.toPadding(scaleLabel.padding);
			var labelRotationRadians = helpers.toRadians(me.labelRotation);

			var itemsToDraw = [];

			var xTickStart = options.position === 'right' ? me.left : me.right - tl;
			var xTickEnd = options.position === 'right' ? me.left + tl : me.right;
			var yTickStart = options.position === 'bottom' ? me.top : me.bottom - tl;
			var yTickEnd = options.position === 'bottom' ? me.top + tl : me.bottom;

			helpers.each(ticks, function(tick, index) {
				// autoskipper skipped this tick (#4635)
				if (tick.label === undefined) {
					return;
				}

				var label = tick.label;
				var lineWidth, lineColor, borderDash, borderDashOffset;
				if (index === me.zeroLineIndex && options.offset === gridLines.offsetGridLines) {
					// Draw the first index specially
					lineWidth = gridLines.zeroLineWidth;
					lineColor = gridLines.zeroLineColor;
					borderDash = gridLines.zeroLineBorderDash;
					borderDashOffset = gridLines.zeroLineBorderDashOffset;
				} else {
					lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, index);
					lineColor = helpers.valueAtIndexOrDefault(gridLines.color, index);
					borderDash = helpers.valueOrDefault(gridLines.borderDash, globalDefaults.borderDash);
					borderDashOffset = helpers.valueOrDefault(gridLines.borderDashOffset, globalDefaults.borderDashOffset);
				}

				// Common properties
				var tx1, ty1, tx2, ty2, x1, y1, x2, y2, labelX, labelY;
				var textAlign = 'middle';
				var textBaseline = 'middle';
				var tickPadding = optionTicks.padding;

				if (isHorizontal) {
					var labelYOffset = tl + tickPadding;

					if (options.position === 'bottom') {
						// bottom
						textBaseline = !isRotated ? 'top' : 'middle';
						textAlign = !isRotated ? 'center' : 'right';
						labelY = me.top + labelYOffset;
					} else {
						// top
						textBaseline = !isRotated ? 'bottom' : 'middle';
						textAlign = !isRotated ? 'center' : 'left';
						labelY = me.bottom - labelYOffset;
					}

					var xLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
					if (xLineValue < me.left) {
						lineColor = 'rgba(0,0,0,0)';
					}
					xLineValue += helpers.aliasPixel(lineWidth);

					labelX = me.getPixelForTick(index) + optionTicks.labelOffset; // x values for optionTicks (need to consider offsetLabel option)

					tx1 = tx2 = x1 = x2 = xLineValue;
					ty1 = yTickStart;
					ty2 = yTickEnd;
					y1 = chartArea.top;
					y2 = chartArea.bottom;
				} else {
					var isLeft = options.position === 'left';
					var labelXOffset;

					if (optionTicks.mirror) {
						textAlign = isLeft ? 'left' : 'right';
						labelXOffset = tickPadding;
					} else {
						textAlign = isLeft ? 'right' : 'left';
						labelXOffset = tl + tickPadding;
					}

					labelX = isLeft ? me.right - labelXOffset : me.left + labelXOffset;

					var yLineValue = getLineValue(me, index, gridLines.offsetGridLines && ticks.length > 1);
					if (yLineValue < me.top) {
						lineColor = 'rgba(0,0,0,0)';
					}
					yLineValue += helpers.aliasPixel(lineWidth);

					labelY = me.getPixelForTick(index) + optionTicks.labelOffset;

					tx1 = xTickStart;
					tx2 = xTickEnd;
					x1 = chartArea.left;
					x2 = chartArea.right;
					ty1 = ty2 = y1 = y2 = yLineValue;
				}

				itemsToDraw.push({
					tx1: tx1,
					ty1: ty1,
					tx2: tx2,
					ty2: ty2,
					x1: x1,
					y1: y1,
					x2: x2,
					y2: y2,
					labelX: labelX,
					labelY: labelY,
					glWidth: lineWidth,
					glColor: lineColor,
					glBorderDash: borderDash,
					glBorderDashOffset: borderDashOffset,
					rotation: -1 * labelRotationRadians,
					label: label,
					major: tick.major,
					textBaseline: textBaseline,
					textAlign: textAlign
				});
			});

			// Draw all of the tick labels, tick marks, and grid lines at the correct places
			helpers.each(itemsToDraw, function(itemToDraw) {
				if (gridLines.display) {
					context.save();
					context.lineWidth = itemToDraw.glWidth;
					context.strokeStyle = itemToDraw.glColor;
					if (context.setLineDash) {
						context.setLineDash(itemToDraw.glBorderDash);
						context.lineDashOffset = itemToDraw.glBorderDashOffset;
					}

					context.beginPath();

					if (gridLines.drawTicks) {
						context.moveTo(itemToDraw.tx1, itemToDraw.ty1);
						context.lineTo(itemToDraw.tx2, itemToDraw.ty2);
					}

					if (gridLines.drawOnChartArea) {
						context.moveTo(itemToDraw.x1, itemToDraw.y1);
						context.lineTo(itemToDraw.x2, itemToDraw.y2);
					}

					context.stroke();
					context.restore();
				}

				if (optionTicks.display) {
					// Make sure we draw text in the correct color and font
					context.save();
					context.translate(itemToDraw.labelX, itemToDraw.labelY);
					context.rotate(itemToDraw.rotation);
					context.font = itemToDraw.major ? majorTickFont.font : tickFont.font;
					context.fillStyle = itemToDraw.major ? majorTickFontColor : tickFontColor;
					context.textBaseline = itemToDraw.textBaseline;
					context.textAlign = itemToDraw.textAlign;

					var label = itemToDraw.label;
					if (helpers.isArray(label)) {
						for (var i = 0, y = 0; i < label.length; ++i) {
							// We just make sure the multiline element is a string here..
							context.fillText('' + label[i], 0, y);
							// apply same lineSpacing as calculated @ L#320
							y += (tickFont.size * 1.5);
						}
					} else {
						context.fillText(label, 0, 0);
					}
					context.restore();
				}
			});

			if (scaleLabel.display) {
				// Draw the scale label
				var scaleLabelX;
				var scaleLabelY;
				var rotation = 0;
				var halfLineHeight = parseLineHeight(scaleLabel) / 2;

				if (isHorizontal) {
					scaleLabelX = me.left + ((me.right - me.left) / 2); // midpoint of the width
					scaleLabelY = options.position === 'bottom'
						? me.bottom - halfLineHeight - scaleLabelPadding.bottom
						: me.top + halfLineHeight + scaleLabelPadding.top;
				} else {
					var isLeft = options.position === 'left';
					scaleLabelX = isLeft
						? me.left + halfLineHeight + scaleLabelPadding.top
						: me.right - halfLineHeight - scaleLabelPadding.top;
					scaleLabelY = me.top + ((me.bottom - me.top) / 2);
					rotation = isLeft ? -0.5 * Math.PI : 0.5 * Math.PI;
				}

				context.save();
				context.translate(scaleLabelX, scaleLabelY);
				context.rotate(rotation);
				context.textAlign = 'center';
				context.textBaseline = 'middle';
				context.fillStyle = scaleLabelFontColor; // render in correct colour
				context.font = scaleLabelFont.font;
				context.fillText(scaleLabel.labelString, 0, 0);
				context.restore();
			}

			if (gridLines.drawBorder) {
				// Draw the line at the edge of the axis
				context.lineWidth = helpers.valueAtIndexOrDefault(gridLines.lineWidth, 0);
				context.strokeStyle = helpers.valueAtIndexOrDefault(gridLines.color, 0);
				var x1 = me.left;
				var x2 = me.right;
				var y1 = me.top;
				var y2 = me.bottom;

				var aliasPixel = helpers.aliasPixel(context.lineWidth);
				if (isHorizontal) {
					y1 = y2 = options.position === 'top' ? me.bottom : me.top;
					y1 += aliasPixel;
					y2 += aliasPixel;
				} else {
					x1 = x2 = options.position === 'left' ? me.right : me.left;
					x1 += aliasPixel;
					x2 += aliasPixel;
				}

				context.beginPath();
				context.moveTo(x1, y1);
				context.lineTo(x2, y2);
				context.stroke();
			}
		}
	});
};

},{"25":25,"26":26,"34":34,"45":45}],33:[function(require,module,exports){
'use strict';

var defaults = require(25);
var helpers = require(45);

module.exports = function(Chart) {

	Chart.scaleService = {
		// Scale registration object. Extensions can register new scale types (such as log or DB scales) and then
		// use the new chart options to grab the correct scale
		constructors: {},
		// Use a registration function so that we can move to an ES6 map when we no longer need to support
		// old browsers

		// Scale config defaults
		defaults: {},
		registerScaleType: function(type, scaleConstructor, scaleDefaults) {
			this.constructors[type] = scaleConstructor;
			this.defaults[type] = helpers.clone(scaleDefaults);
		},
		getScaleConstructor: function(type) {
			return this.constructors.hasOwnProperty(type) ? this.constructors[type] : undefined;
		},
		getScaleDefaults: function(type) {
			// Return the scale defaults merged with the global settings so that we always use the latest ones
			return this.defaults.hasOwnProperty(type) ? helpers.merge({}, [defaults.scale, this.defaults[type]]) : {};
		},
		updateScaleDefaults: function(type, additions) {
			var me = this;
			if (me.defaults.hasOwnProperty(type)) {
				me.defaults[type] = helpers.extend(me.defaults[type], additions);
			}
		},
		addScalesToLayout: function(chart) {
			// Adds each scale to the chart.boxes array to be sized accordingly
			helpers.each(chart.scales, function(scale) {
				// Set ILayoutItem parameters for backwards compatibility
				scale.fullWidth = scale.options.fullWidth;
				scale.position = scale.options.position;
				scale.weight = scale.options.weight;
				Chart.layoutService.addBox(chart, scale);
			});
		}
	};
};

},{"25":25,"45":45}],34:[function(require,module,exports){
'use strict';

var helpers = require(45);

/**
 * Namespace to hold static tick generation functions
 * @namespace Chart.Ticks
 */
module.exports = {
	/**
	 * Namespace to hold generators for different types of ticks
	 * @namespace Chart.Ticks.generators
	 */
	generators: {
		/**
		 * Interface for the options provided to the numeric tick generator
		 * @interface INumericTickGenerationOptions
		 */
		/**
		 * The maximum number of ticks to display
		 * @name INumericTickGenerationOptions#maxTicks
		 * @type Number
		 */
		/**
		 * The distance between each tick.
		 * @name INumericTickGenerationOptions#stepSize
		 * @type Number
		 * @optional
		 */
		/**
		 * Forced minimum for the ticks. If not specified, the minimum of the data range is used to calculate the tick minimum
		 * @name INumericTickGenerationOptions#min
		 * @type Number
		 * @optional
		 */
		/**
		 * The maximum value of the ticks. If not specified, the maximum of the data range is used to calculate the tick maximum
		 * @name INumericTickGenerationOptions#max
		 * @type Number
		 * @optional
		 */

		/**
		 * Generate a set of linear ticks
		 * @method Chart.Ticks.generators.linear
		 * @param generationOptions {INumericTickGenerationOptions} the options used to generate the ticks
		 * @param dataRange {IRange} the range of the data
		 * @returns {Array<Number>} array of tick values
		 */
		linear: function(generationOptions, dataRange) {
			var ticks = [];
			// To get a "nice" value for the tick spacing, we will use the appropriately named
			// "nice number" algorithm. See http://stackoverflow.com/questions/8506881/nice-label-algorithm-for-charts-with-minimum-ticks
			// for details.

			var spacing;
			if (generationOptions.stepSize && generationOptions.stepSize > 0) {
				spacing = generationOptions.stepSize;
			} else {
				var niceRange = helpers.niceNum(dataRange.max - dataRange.min, false);
				spacing = helpers.niceNum(niceRange / (generationOptions.maxTicks - 1), true);
			}
			var niceMin = Math.floor(dataRange.min / spacing) * spacing;
			var niceMax = Math.ceil(dataRange.max / spacing) * spacing;

			// If min, max and stepSize is set and they make an evenly spaced scale use it.
			if (generationOptions.min && generationOptions.max && generationOptions.stepSize) {
				// If very close to our whole number, use it.
				if (helpers.almostWhole((generationOptions.max - generationOptions.min) / generationOptions.stepSize, spacing / 1000)) {
					niceMin = generationOptions.min;
					niceMax = generationOptions.max;
				}
			}

			var numSpaces = (niceMax - niceMin) / spacing;
			// If very close to our rounded value, use it.
			if (helpers.almostEquals(numSpaces, Math.round(numSpaces), spacing / 1000)) {
				numSpaces = Math.round(numSpaces);
			} else {
				numSpaces = Math.ceil(numSpaces);
			}

			// Put the values into the ticks array
			ticks.push(generationOptions.min !== undefined ? generationOptions.min : niceMin);
			for (var j = 1; j < numSpaces; ++j) {
				ticks.push(niceMin + (j * spacing));
			}
			ticks.push(generationOptions.max !== undefined ? generationOptions.max : niceMax);

			return ticks;
		},

		/**
		 * Generate a set of logarithmic ticks
		 * @method Chart.Ticks.generators.logarithmic
		 * @param generationOptions {INumericTickGenerationOptions} the options used to generate the ticks
		 * @param dataRange {IRange} the range of the data
		 * @returns {Array<Number>} array of tick values
		 */
		logarithmic: function(generationOptions, dataRange) {
			var ticks = [];
			var valueOrDefault = helpers.valueOrDefault;

			// Figure out what the max number of ticks we can support it is based on the size of
			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
			// the graph
			var tickVal = valueOrDefault(generationOptions.min, Math.pow(10, Math.floor(helpers.log10(dataRange.min))));

			var endExp = Math.floor(helpers.log10(dataRange.max));
			var endSignificand = Math.ceil(dataRange.max / Math.pow(10, endExp));
			var exp, significand;

			if (tickVal === 0) {
				exp = Math.floor(helpers.log10(dataRange.minNotZero));
				significand = Math.floor(dataRange.minNotZero / Math.pow(10, exp));

				ticks.push(tickVal);
				tickVal = significand * Math.pow(10, exp);
			} else {
				exp = Math.floor(helpers.log10(tickVal));
				significand = Math.floor(tickVal / Math.pow(10, exp));
			}

			do {
				ticks.push(tickVal);

				++significand;
				if (significand === 10) {
					significand = 1;
					++exp;
				}

				tickVal = significand * Math.pow(10, exp);
			} while (exp < endExp || (exp === endExp && significand < endSignificand));

			var lastTick = valueOrDefault(generationOptions.max, tickVal);
			ticks.push(lastTick);

			return ticks;
		}
	},

	/**
	 * Namespace to hold formatters for different types of ticks
	 * @namespace Chart.Ticks.formatters
	 */
	formatters: {
		/**
		 * Formatter for value labels
		 * @method Chart.Ticks.formatters.values
		 * @param value the value to display
		 * @return {String|Array} the label to display
		 */
		values: function(value) {
			return helpers.isArray(value) ? value : '' + value;
		},

		/**
		 * Formatter for linear numeric ticks
		 * @method Chart.Ticks.formatters.linear
		 * @param tickValue {Number} the value to be formatted
		 * @param index {Number} the position of the tickValue parameter in the ticks array
		 * @param ticks {Array<Number>} the list of ticks being converted
		 * @return {String} string representation of the tickValue parameter
		 */
		linear: function(tickValue, index, ticks) {
			// If we have lots of ticks, don't use the ones
			var delta = ticks.length > 3 ? ticks[2] - ticks[1] : ticks[1] - ticks[0];

			// If we have a number like 2.5 as the delta, figure out how many decimal places we need
			if (Math.abs(delta) > 1) {
				if (tickValue !== Math.floor(tickValue)) {
					// not an integer
					delta = tickValue - Math.floor(tickValue);
				}
			}

			var logDelta = helpers.log10(Math.abs(delta));
			var tickString = '';

			if (tickValue !== 0) {
				var numDecimal = -1 * Math.floor(logDelta);
				numDecimal = Math.max(Math.min(numDecimal, 20), 0); // toFixed has a max of 20 decimal places
				tickString = tickValue.toFixed(numDecimal);
			} else {
				tickString = '0'; // never show decimal places for 0
			}

			return tickString;
		},

		logarithmic: function(tickValue, index, ticks) {
			var remain = tickValue / (Math.pow(10, Math.floor(helpers.log10(tickValue))));

			if (tickValue === 0) {
				return '0';
			} else if (remain === 1 || remain === 2 || remain === 5 || index === 0 || index === ticks.length - 1) {
				return tickValue.toExponential();
			}
			return '';
		}
	}
};

},{"45":45}],35:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

defaults._set('global', {
	tooltips: {
		enabled: true,
		custom: null,
		mode: 'nearest',
		position: 'average',
		intersect: true,
		backgroundColor: 'rgba(0,0,0,0.8)',
		titleFontStyle: 'bold',
		titleSpacing: 2,
		titleMarginBottom: 6,
		titleFontColor: '#fff',
		titleAlign: 'left',
		bodySpacing: 2,
		bodyFontColor: '#fff',
		bodyAlign: 'left',
		footerFontStyle: 'bold',
		footerSpacing: 2,
		footerMarginTop: 6,
		footerFontColor: '#fff',
		footerAlign: 'left',
		yPadding: 6,
		xPadding: 6,
		caretPadding: 2,
		caretSize: 5,
		cornerRadius: 6,
		multiKeyBackground: '#fff',
		displayColors: true,
		borderColor: 'rgba(0,0,0,0)',
		borderWidth: 0,
		callbacks: {
			// Args are: (tooltipItems, data)
			beforeTitle: helpers.noop,
			title: function(tooltipItems, data) {
				// Pick first xLabel for now
				var title = '';
				var labels = data.labels;
				var labelCount = labels ? labels.length : 0;

				if (tooltipItems.length > 0) {
					var item = tooltipItems[0];

					if (item.xLabel) {
						title = item.xLabel;
					} else if (labelCount > 0 && item.index < labelCount) {
						title = labels[item.index];
					}
				}

				return title;
			},
			afterTitle: helpers.noop,

			// Args are: (tooltipItems, data)
			beforeBody: helpers.noop,

			// Args are: (tooltipItem, data)
			beforeLabel: helpers.noop,
			label: function(tooltipItem, data) {
				var label = data.datasets[tooltipItem.datasetIndex].label || '';

				if (label) {
					label += ': ';
				}
				label += tooltipItem.yLabel;
				return label;
			},
			labelColor: function(tooltipItem, chart) {
				var meta = chart.getDatasetMeta(tooltipItem.datasetIndex);
				var activeElement = meta.data[tooltipItem.index];
				var view = activeElement._view;
				return {
					borderColor: view.borderColor,
					backgroundColor: view.backgroundColor
				};
			},
			labelTextColor: function() {
				return this._options.bodyFontColor;
			},
			afterLabel: helpers.noop,

			// Args are: (tooltipItems, data)
			afterBody: helpers.noop,

			// Args are: (tooltipItems, data)
			beforeFooter: helpers.noop,
			footer: helpers.noop,
			afterFooter: helpers.noop
		}
	}
});

module.exports = function(Chart) {

	/**
 	 * Helper method to merge the opacity into a color
 	 */
	function mergeOpacity(colorString, opacity) {
		var color = helpers.color(colorString);
		return color.alpha(opacity * color.alpha()).rgbaString();
	}

	// Helper to push or concat based on if the 2nd parameter is an array or not
	function pushOrConcat(base, toPush) {
		if (toPush) {
			if (helpers.isArray(toPush)) {
				// base = base.concat(toPush);
				Array.prototype.push.apply(base, toPush);
			} else {
				base.push(toPush);
			}
		}

		return base;
	}

	// Private helper to create a tooltip item model
	// @param element : the chart element (point, arc, bar) to create the tooltip item for
	// @return : new tooltip item
	function createTooltipItem(element) {
		var xScale = element._xScale;
		var yScale = element._yScale || element._scale; // handle radar || polarArea charts
		var index = element._index;
		var datasetIndex = element._datasetIndex;

		return {
			xLabel: xScale ? xScale.getLabelForIndex(index, datasetIndex) : '',
			yLabel: yScale ? yScale.getLabelForIndex(index, datasetIndex) : '',
			index: index,
			datasetIndex: datasetIndex,
			x: element._model.x,
			y: element._model.y
		};
	}

	/**
	 * Helper to get the reset model for the tooltip
	 * @param tooltipOpts {Object} the tooltip options
	 */
	function getBaseModel(tooltipOpts) {
		var globalDefaults = defaults.global;
		var valueOrDefault = helpers.valueOrDefault;

		return {
			// Positioning
			xPadding: tooltipOpts.xPadding,
			yPadding: tooltipOpts.yPadding,
			xAlign: tooltipOpts.xAlign,
			yAlign: tooltipOpts.yAlign,

			// Body
			bodyFontColor: tooltipOpts.bodyFontColor,
			_bodyFontFamily: valueOrDefault(tooltipOpts.bodyFontFamily, globalDefaults.defaultFontFamily),
			_bodyFontStyle: valueOrDefault(tooltipOpts.bodyFontStyle, globalDefaults.defaultFontStyle),
			_bodyAlign: tooltipOpts.bodyAlign,
			bodyFontSize: valueOrDefault(tooltipOpts.bodyFontSize, globalDefaults.defaultFontSize),
			bodySpacing: tooltipOpts.bodySpacing,

			// Title
			titleFontColor: tooltipOpts.titleFontColor,
			_titleFontFamily: valueOrDefault(tooltipOpts.titleFontFamily, globalDefaults.defaultFontFamily),
			_titleFontStyle: valueOrDefault(tooltipOpts.titleFontStyle, globalDefaults.defaultFontStyle),
			titleFontSize: valueOrDefault(tooltipOpts.titleFontSize, globalDefaults.defaultFontSize),
			_titleAlign: tooltipOpts.titleAlign,
			titleSpacing: tooltipOpts.titleSpacing,
			titleMarginBottom: tooltipOpts.titleMarginBottom,

			// Footer
			footerFontColor: tooltipOpts.footerFontColor,
			_footerFontFamily: valueOrDefault(tooltipOpts.footerFontFamily, globalDefaults.defaultFontFamily),
			_footerFontStyle: valueOrDefault(tooltipOpts.footerFontStyle, globalDefaults.defaultFontStyle),
			footerFontSize: valueOrDefault(tooltipOpts.footerFontSize, globalDefaults.defaultFontSize),
			_footerAlign: tooltipOpts.footerAlign,
			footerSpacing: tooltipOpts.footerSpacing,
			footerMarginTop: tooltipOpts.footerMarginTop,

			// Appearance
			caretSize: tooltipOpts.caretSize,
			cornerRadius: tooltipOpts.cornerRadius,
			backgroundColor: tooltipOpts.backgroundColor,
			opacity: 0,
			legendColorBackground: tooltipOpts.multiKeyBackground,
			displayColors: tooltipOpts.displayColors,
			borderColor: tooltipOpts.borderColor,
			borderWidth: tooltipOpts.borderWidth
		};
	}

	/**
	 * Get the size of the tooltip
	 */
	function getTooltipSize(tooltip, model) {
		var ctx = tooltip._chart.ctx;

		var height = model.yPadding * 2; // Tooltip Padding
		var width = 0;

		// Count of all lines in the body
		var body = model.body;
		var combinedBodyLength = body.reduce(function(count, bodyItem) {
			return count + bodyItem.before.length + bodyItem.lines.length + bodyItem.after.length;
		}, 0);
		combinedBodyLength += model.beforeBody.length + model.afterBody.length;

		var titleLineCount = model.title.length;
		var footerLineCount = model.footer.length;
		var titleFontSize = model.titleFontSize;
		var bodyFontSize = model.bodyFontSize;
		var footerFontSize = model.footerFontSize;

		height += titleLineCount * titleFontSize; // Title Lines
		height += titleLineCount ? (titleLineCount - 1) * model.titleSpacing : 0; // Title Line Spacing
		height += titleLineCount ? model.titleMarginBottom : 0; // Title's bottom Margin
		height += combinedBodyLength * bodyFontSize; // Body Lines
		height += combinedBodyLength ? (combinedBodyLength - 1) * model.bodySpacing : 0; // Body Line Spacing
		height += footerLineCount ? model.footerMarginTop : 0; // Footer Margin
		height += footerLineCount * (footerFontSize); // Footer Lines
		height += footerLineCount ? (footerLineCount - 1) * model.footerSpacing : 0; // Footer Line Spacing

		// Title width
		var widthPadding = 0;
		var maxLineWidth = function(line) {
			width = Math.max(width, ctx.measureText(line).width + widthPadding);
		};

		ctx.font = helpers.fontString(titleFontSize, model._titleFontStyle, model._titleFontFamily);
		helpers.each(model.title, maxLineWidth);

		// Body width
		ctx.font = helpers.fontString(bodyFontSize, model._bodyFontStyle, model._bodyFontFamily);
		helpers.each(model.beforeBody.concat(model.afterBody), maxLineWidth);

		// Body lines may include some extra width due to the color box
		widthPadding = model.displayColors ? (bodyFontSize + 2) : 0;
		helpers.each(body, function(bodyItem) {
			helpers.each(bodyItem.before, maxLineWidth);
			helpers.each(bodyItem.lines, maxLineWidth);
			helpers.each(bodyItem.after, maxLineWidth);
		});

		// Reset back to 0
		widthPadding = 0;

		// Footer width
		ctx.font = helpers.fontString(footerFontSize, model._footerFontStyle, model._footerFontFamily);
		helpers.each(model.footer, maxLineWidth);

		// Add padding
		width += 2 * model.xPadding;

		return {
			width: width,
			height: height
		};
	}

	/**
	 * Helper to get the alignment of a tooltip given the size
	 */
	function determineAlignment(tooltip, size) {
		var model = tooltip._model;
		var chart = tooltip._chart;
		var chartArea = tooltip._chart.chartArea;
		var xAlign = 'center';
		var yAlign = 'center';

		if (model.y < size.height) {
			yAlign = 'top';
		} else if (model.y > (chart.height - size.height)) {
			yAlign = 'bottom';
		}

		var lf, rf; // functions to determine left, right alignment
		var olf, orf; // functions to determine if left/right alignment causes tooltip to go outside chart
		var yf; // function to get the y alignment if the tooltip goes outside of the left or right edges
		var midX = (chartArea.left + chartArea.right) / 2;
		var midY = (chartArea.top + chartArea.bottom) / 2;

		if (yAlign === 'center') {
			lf = function(x) {
				return x <= midX;
			};
			rf = function(x) {
				return x > midX;
			};
		} else {
			lf = function(x) {
				return x <= (size.width / 2);
			};
			rf = function(x) {
				return x >= (chart.width - (size.width / 2));
			};
		}

		olf = function(x) {
			return x + size.width > chart.width;
		};
		orf = function(x) {
			return x - size.width < 0;
		};
		yf = function(y) {
			return y <= midY ? 'top' : 'bottom';
		};

		if (lf(model.x)) {
			xAlign = 'left';

			// Is tooltip too wide and goes over the right side of the chart.?
			if (olf(model.x)) {
				xAlign = 'center';
				yAlign = yf(model.y);
			}
		} else if (rf(model.x)) {
			xAlign = 'right';

			// Is tooltip too wide and goes outside left edge of canvas?
			if (orf(model.x)) {
				xAlign = 'center';
				yAlign = yf(model.y);
			}
		}

		var opts = tooltip._options;
		return {
			xAlign: opts.xAlign ? opts.xAlign : xAlign,
			yAlign: opts.yAlign ? opts.yAlign : yAlign
		};
	}

	/**
	 * @Helper to get the location a tooltip needs to be placed at given the initial position (via the vm) and the size and alignment
	 */
	function getBackgroundPoint(vm, size, alignment) {
		// Background Position
		var x = vm.x;
		var y = vm.y;

		var caretSize = vm.caretSize;
		var caretPadding = vm.caretPadding;
		var cornerRadius = vm.cornerRadius;
		var xAlign = alignment.xAlign;
		var yAlign = alignment.yAlign;
		var paddingAndSize = caretSize + caretPadding;
		var radiusAndPadding = cornerRadius + caretPadding;

		if (xAlign === 'right') {
			x -= size.width;
		} else if (xAlign === 'center') {
			x -= (size.width / 2);
		}

		if (yAlign === 'top') {
			y += paddingAndSize;
		} else if (yAlign === 'bottom') {
			y -= size.height + paddingAndSize;
		} else {
			y -= (size.height / 2);
		}

		if (yAlign === 'center') {
			if (xAlign === 'left') {
				x += paddingAndSize;
			} else if (xAlign === 'right') {
				x -= paddingAndSize;
			}
		} else if (xAlign === 'left') {
			x -= radiusAndPadding;
		} else if (xAlign === 'right') {
			x += radiusAndPadding;
		}

		return {
			x: x,
			y: y
		};
	}

	Chart.Tooltip = Element.extend({
		initialize: function() {
			this._model = getBaseModel(this._options);
		},

		// Get the title
		// Args are: (tooltipItem, data)
		getTitle: function() {
			var me = this;
			var opts = me._options;
			var callbacks = opts.callbacks;

			var beforeTitle = callbacks.beforeTitle.apply(me, arguments);
			var title = callbacks.title.apply(me, arguments);
			var afterTitle = callbacks.afterTitle.apply(me, arguments);

			var lines = [];
			lines = pushOrConcat(lines, beforeTitle);
			lines = pushOrConcat(lines, title);
			lines = pushOrConcat(lines, afterTitle);

			return lines;
		},

		// Args are: (tooltipItem, data)
		getBeforeBody: function() {
			var lines = this._options.callbacks.beforeBody.apply(this, arguments);
			return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
		},

		// Args are: (tooltipItem, data)
		getBody: function(tooltipItems, data) {
			var me = this;
			var callbacks = me._options.callbacks;
			var bodyItems = [];

			helpers.each(tooltipItems, function(tooltipItem) {
				var bodyItem = {
					before: [],
					lines: [],
					after: []
				};
				pushOrConcat(bodyItem.before, callbacks.beforeLabel.call(me, tooltipItem, data));
				pushOrConcat(bodyItem.lines, callbacks.label.call(me, tooltipItem, data));
				pushOrConcat(bodyItem.after, callbacks.afterLabel.call(me, tooltipItem, data));

				bodyItems.push(bodyItem);
			});

			return bodyItems;
		},

		// Args are: (tooltipItem, data)
		getAfterBody: function() {
			var lines = this._options.callbacks.afterBody.apply(this, arguments);
			return helpers.isArray(lines) ? lines : lines !== undefined ? [lines] : [];
		},

		// Get the footer and beforeFooter and afterFooter lines
		// Args are: (tooltipItem, data)
		getFooter: function() {
			var me = this;
			var callbacks = me._options.callbacks;

			var beforeFooter = callbacks.beforeFooter.apply(me, arguments);
			var footer = callbacks.footer.apply(me, arguments);
			var afterFooter = callbacks.afterFooter.apply(me, arguments);

			var lines = [];
			lines = pushOrConcat(lines, beforeFooter);
			lines = pushOrConcat(lines, footer);
			lines = pushOrConcat(lines, afterFooter);

			return lines;
		},

		update: function(changed) {
			var me = this;
			var opts = me._options;

			// Need to regenerate the model because its faster than using extend and it is necessary due to the optimization in Chart.Element.transition
			// that does _view = _model if ease === 1. This causes the 2nd tooltip update to set properties in both the view and model at the same time
			// which breaks any animations.
			var existingModel = me._model;
			var model = me._model = getBaseModel(opts);
			var active = me._active;

			var data = me._data;

			// In the case where active.length === 0 we need to keep these at existing values for good animations
			var alignment = {
				xAlign: existingModel.xAlign,
				yAlign: existingModel.yAlign
			};
			var backgroundPoint = {
				x: existingModel.x,
				y: existingModel.y
			};
			var tooltipSize = {
				width: existingModel.width,
				height: existingModel.height
			};
			var tooltipPosition = {
				x: existingModel.caretX,
				y: existingModel.caretY
			};

			var i, len;

			if (active.length) {
				model.opacity = 1;

				var labelColors = [];
				var labelTextColors = [];
				tooltipPosition = Chart.Tooltip.positioners[opts.position](active, me._eventPosition);

				var tooltipItems = [];
				for (i = 0, len = active.length; i < len; ++i) {
					tooltipItems.push(createTooltipItem(active[i]));
				}

				// If the user provided a filter function, use it to modify the tooltip items
				if (opts.filter) {
					tooltipItems = tooltipItems.filter(function(a) {
						return opts.filter(a, data);
					});
				}

				// If the user provided a sorting function, use it to modify the tooltip items
				if (opts.itemSort) {
					tooltipItems = tooltipItems.sort(function(a, b) {
						return opts.itemSort(a, b, data);
					});
				}

				// Determine colors for boxes
				helpers.each(tooltipItems, function(tooltipItem) {
					labelColors.push(opts.callbacks.labelColor.call(me, tooltipItem, me._chart));
					labelTextColors.push(opts.callbacks.labelTextColor.call(me, tooltipItem, me._chart));
				});


				// Build the Text Lines
				model.title = me.getTitle(tooltipItems, data);
				model.beforeBody = me.getBeforeBody(tooltipItems, data);
				model.body = me.getBody(tooltipItems, data);
				model.afterBody = me.getAfterBody(tooltipItems, data);
				model.footer = me.getFooter(tooltipItems, data);

				// Initial positioning and colors
				model.x = Math.round(tooltipPosition.x);
				model.y = Math.round(tooltipPosition.y);
				model.caretPadding = opts.caretPadding;
				model.labelColors = labelColors;
				model.labelTextColors = labelTextColors;

				// data points
				model.dataPoints = tooltipItems;

				// We need to determine alignment of the tooltip
				tooltipSize = getTooltipSize(this, model);
				alignment = determineAlignment(this, tooltipSize);
				// Final Size and Position
				backgroundPoint = getBackgroundPoint(model, tooltipSize, alignment);
			} else {
				model.opacity = 0;
			}

			model.xAlign = alignment.xAlign;
			model.yAlign = alignment.yAlign;
			model.x = backgroundPoint.x;
			model.y = backgroundPoint.y;
			model.width = tooltipSize.width;
			model.height = tooltipSize.height;

			// Point where the caret on the tooltip points to
			model.caretX = tooltipPosition.x;
			model.caretY = tooltipPosition.y;

			me._model = model;

			if (changed && opts.custom) {
				opts.custom.call(me, model);
			}

			return me;
		},
		drawCaret: function(tooltipPoint, size) {
			var ctx = this._chart.ctx;
			var vm = this._view;
			var caretPosition = this.getCaretPosition(tooltipPoint, size, vm);

			ctx.lineTo(caretPosition.x1, caretPosition.y1);
			ctx.lineTo(caretPosition.x2, caretPosition.y2);
			ctx.lineTo(caretPosition.x3, caretPosition.y3);
		},
		getCaretPosition: function(tooltipPoint, size, vm) {
			var x1, x2, x3, y1, y2, y3;
			var caretSize = vm.caretSize;
			var cornerRadius = vm.cornerRadius;
			var xAlign = vm.xAlign;
			var yAlign = vm.yAlign;
			var ptX = tooltipPoint.x;
			var ptY = tooltipPoint.y;
			var width = size.width;
			var height = size.height;

			if (yAlign === 'center') {
				y2 = ptY + (height / 2);

				if (xAlign === 'left') {
					x1 = ptX;
					x2 = x1 - caretSize;
					x3 = x1;

					y1 = y2 + caretSize;
					y3 = y2 - caretSize;
				} else {
					x1 = ptX + width;
					x2 = x1 + caretSize;
					x3 = x1;

					y1 = y2 - caretSize;
					y3 = y2 + caretSize;
				}
			} else {
				if (xAlign === 'left') {
					x2 = ptX + cornerRadius + (caretSize);
					x1 = x2 - caretSize;
					x3 = x2 + caretSize;
				} else if (xAlign === 'right') {
					x2 = ptX + width - cornerRadius - caretSize;
					x1 = x2 - caretSize;
					x3 = x2 + caretSize;
				} else {
					x2 = ptX + (width / 2);
					x1 = x2 - caretSize;
					x3 = x2 + caretSize;
				}
				if (yAlign === 'top') {
					y1 = ptY;
					y2 = y1 - caretSize;
					y3 = y1;
				} else {
					y1 = ptY + height;
					y2 = y1 + caretSize;
					y3 = y1;
					// invert drawing order
					var tmp = x3;
					x3 = x1;
					x1 = tmp;
				}
			}
			return {x1: x1, x2: x2, x3: x3, y1: y1, y2: y2, y3: y3};
		},
		drawTitle: function(pt, vm, ctx, opacity) {
			var title = vm.title;

			if (title.length) {
				ctx.textAlign = vm._titleAlign;
				ctx.textBaseline = 'top';

				var titleFontSize = vm.titleFontSize;
				var titleSpacing = vm.titleSpacing;

				ctx.fillStyle = mergeOpacity(vm.titleFontColor, opacity);
				ctx.font = helpers.fontString(titleFontSize, vm._titleFontStyle, vm._titleFontFamily);

				var i, len;
				for (i = 0, len = title.length; i < len; ++i) {
					ctx.fillText(title[i], pt.x, pt.y);
					pt.y += titleFontSize + titleSpacing; // Line Height and spacing

					if (i + 1 === title.length) {
						pt.y += vm.titleMarginBottom - titleSpacing; // If Last, add margin, remove spacing
					}
				}
			}
		},
		drawBody: function(pt, vm, ctx, opacity) {
			var bodyFontSize = vm.bodyFontSize;
			var bodySpacing = vm.bodySpacing;
			var body = vm.body;

			ctx.textAlign = vm._bodyAlign;
			ctx.textBaseline = 'top';
			ctx.font = helpers.fontString(bodyFontSize, vm._bodyFontStyle, vm._bodyFontFamily);

			// Before Body
			var xLinePadding = 0;
			var fillLineOfText = function(line) {
				ctx.fillText(line, pt.x + xLinePadding, pt.y);
				pt.y += bodyFontSize + bodySpacing;
			};

			// Before body lines
			helpers.each(vm.beforeBody, fillLineOfText);

			var drawColorBoxes = vm.displayColors;
			xLinePadding = drawColorBoxes ? (bodyFontSize + 2) : 0;

			// Draw body lines now
			helpers.each(body, function(bodyItem, i) {
				helpers.each(bodyItem.before, fillLineOfText);

				helpers.each(bodyItem.lines, function(line) {
					// Draw Legend-like boxes if needed
					if (drawColorBoxes) {
						// Fill a white rect so that colours merge nicely if the opacity is < 1
						ctx.fillStyle = mergeOpacity(vm.legendColorBackground, opacity);
						ctx.fillRect(pt.x, pt.y, bodyFontSize, bodyFontSize);

						// Border
						ctx.lineWidth = 1;
						ctx.strokeStyle = mergeOpacity(vm.labelColors[i].borderColor, opacity);
						ctx.strokeRect(pt.x, pt.y, bodyFontSize, bodyFontSize);

						// Inner square
						ctx.fillStyle = mergeOpacity(vm.labelColors[i].backgroundColor, opacity);
						ctx.fillRect(pt.x + 1, pt.y + 1, bodyFontSize - 2, bodyFontSize - 2);
						var textColor = mergeOpacity(vm.labelTextColors[i], opacity);
						ctx.fillStyle = textColor;
					}

					fillLineOfText(line);
				});

				helpers.each(bodyItem.after, fillLineOfText);
			});

			// Reset back to 0 for after body
			xLinePadding = 0;

			// After body lines
			helpers.each(vm.afterBody, fillLineOfText);
			pt.y -= bodySpacing; // Remove last body spacing
		},
		drawFooter: function(pt, vm, ctx, opacity) {
			var footer = vm.footer;

			if (footer.length) {
				pt.y += vm.footerMarginTop;

				ctx.textAlign = vm._footerAlign;
				ctx.textBaseline = 'top';

				ctx.fillStyle = mergeOpacity(vm.footerFontColor, opacity);
				ctx.font = helpers.fontString(vm.footerFontSize, vm._footerFontStyle, vm._footerFontFamily);

				helpers.each(footer, function(line) {
					ctx.fillText(line, pt.x, pt.y);
					pt.y += vm.footerFontSize + vm.footerSpacing;
				});
			}
		},
		drawBackground: function(pt, vm, ctx, tooltipSize, opacity) {
			ctx.fillStyle = mergeOpacity(vm.backgroundColor, opacity);
			ctx.strokeStyle = mergeOpacity(vm.borderColor, opacity);
			ctx.lineWidth = vm.borderWidth;
			var xAlign = vm.xAlign;
			var yAlign = vm.yAlign;
			var x = pt.x;
			var y = pt.y;
			var width = tooltipSize.width;
			var height = tooltipSize.height;
			var radius = vm.cornerRadius;

			ctx.beginPath();
			ctx.moveTo(x + radius, y);
			if (yAlign === 'top') {
				this.drawCaret(pt, tooltipSize);
			}
			ctx.lineTo(x + width - radius, y);
			ctx.quadraticCurveTo(x + width, y, x + width, y + radius);
			if (yAlign === 'center' && xAlign === 'right') {
				this.drawCaret(pt, tooltipSize);
			}
			ctx.lineTo(x + width, y + height - radius);
			ctx.quadraticCurveTo(x + width, y + height, x + width - radius, y + height);
			if (yAlign === 'bottom') {
				this.drawCaret(pt, tooltipSize);
			}
			ctx.lineTo(x + radius, y + height);
			ctx.quadraticCurveTo(x, y + height, x, y + height - radius);
			if (yAlign === 'center' && xAlign === 'left') {
				this.drawCaret(pt, tooltipSize);
			}
			ctx.lineTo(x, y + radius);
			ctx.quadraticCurveTo(x, y, x + radius, y);
			ctx.closePath();

			ctx.fill();

			if (vm.borderWidth > 0) {
				ctx.stroke();
			}
		},
		draw: function() {
			var ctx = this._chart.ctx;
			var vm = this._view;

			if (vm.opacity === 0) {
				return;
			}

			var tooltipSize = {
				width: vm.width,
				height: vm.height
			};
			var pt = {
				x: vm.x,
				y: vm.y
			};

			// IE11/Edge does not like very small opacities, so snap to 0
			var opacity = Math.abs(vm.opacity < 1e-3) ? 0 : vm.opacity;

			// Truthy/falsey value for empty tooltip
			var hasTooltipContent = vm.title.length || vm.beforeBody.length || vm.body.length || vm.afterBody.length || vm.footer.length;

			if (this._options.enabled && hasTooltipContent) {
				// Draw Background
				this.drawBackground(pt, vm, ctx, tooltipSize, opacity);

				// Draw Title, Body, and Footer
				pt.x += vm.xPadding;
				pt.y += vm.yPadding;

				// Titles
				this.drawTitle(pt, vm, ctx, opacity);

				// Body
				this.drawBody(pt, vm, ctx, opacity);

				// Footer
				this.drawFooter(pt, vm, ctx, opacity);
			}
		},

		/**
		 * Handle an event
		 * @private
		 * @param {IEvent} event - The event to handle
		 * @returns {Boolean} true if the tooltip changed
		 */
		handleEvent: function(e) {
			var me = this;
			var options = me._options;
			var changed = false;

			me._lastActive = me._lastActive || [];

			// Find Active Elements for tooltips
			if (e.type === 'mouseout') {
				me._active = [];
			} else {
				me._active = me._chart.getElementsAtEventForMode(e, options.mode, options);
			}

			// Remember Last Actives
			changed = !helpers.arrayEquals(me._active, me._lastActive);

			// If tooltip didn't change, do not handle the target event
			if (!changed) {
				return false;
			}

			me._lastActive = me._active;

			if (options.enabled || options.custom) {
				me._eventPosition = {
					x: e.x,
					y: e.y
				};

				var model = me._model;
				me.update(true);
				me.pivot();

				// See if our tooltip position changed
				changed |= (model.x !== me._model.x) || (model.y !== me._model.y);
			}

			return changed;
		}
	});

	/**
	 * @namespace Chart.Tooltip.positioners
	 */
	Chart.Tooltip.positioners = {
		/**
		 * Average mode places the tooltip at the average position of the elements shown
		 * @function Chart.Tooltip.positioners.average
		 * @param elements {ChartElement[]} the elements being displayed in the tooltip
		 * @returns {Point} tooltip position
		 */
		average: function(elements) {
			if (!elements.length) {
				return false;
			}

			var i, len;
			var x = 0;
			var y = 0;
			var count = 0;

			for (i = 0, len = elements.length; i < len; ++i) {
				var el = elements[i];
				if (el && el.hasValue()) {
					var pos = el.tooltipPosition();
					x += pos.x;
					y += pos.y;
					++count;
				}
			}

			return {
				x: Math.round(x / count),
				y: Math.round(y / count)
			};
		},

		/**
		 * Gets the tooltip position nearest of the item nearest to the event position
		 * @function Chart.Tooltip.positioners.nearest
		 * @param elements {Chart.Element[]} the tooltip elements
		 * @param eventPosition {Point} the position of the event in canvas coordinates
		 * @returns {Point} the tooltip position
		 */
		nearest: function(elements, eventPosition) {
			var x = eventPosition.x;
			var y = eventPosition.y;
			var minDistance = Number.POSITIVE_INFINITY;
			var i, len, nearestElement;

			for (i = 0, len = elements.length; i < len; ++i) {
				var el = elements[i];
				if (el && el.hasValue()) {
					var center = el.getCenterPoint();
					var d = helpers.distanceBetweenPoints(eventPosition, center);

					if (d < minDistance) {
						minDistance = d;
						nearestElement = el;
					}
				}
			}

			if (nearestElement) {
				var tp = nearestElement.tooltipPosition();
				x = tp.x;
				y = tp.y;
			}

			return {
				x: x,
				y: y
			};
		}
	};
};

},{"25":25,"26":26,"45":45}],36:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

defaults._set('global', {
	elements: {
		arc: {
			backgroundColor: defaults.global.defaultColor,
			borderColor: '#fff',
			borderWidth: 2
		}
	}
});

module.exports = Element.extend({
	inLabelRange: function(mouseX) {
		var vm = this._view;

		if (vm) {
			return (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hoverRadius, 2));
		}
		return false;
	},

	inRange: function(chartX, chartY) {
		var vm = this._view;

		if (vm) {
			var pointRelativePosition = helpers.getAngleFromPoint(vm, {x: chartX, y: chartY});
			var	angle = pointRelativePosition.angle;
			var distance = pointRelativePosition.distance;

			// Sanitise angle range
			var startAngle = vm.startAngle;
			var endAngle = vm.endAngle;
			while (endAngle < startAngle) {
				endAngle += 2.0 * Math.PI;
			}
			while (angle > endAngle) {
				angle -= 2.0 * Math.PI;
			}
			while (angle < startAngle) {
				angle += 2.0 * Math.PI;
			}

			// Check if within the range of the open/close angle
			var betweenAngles = (angle >= startAngle && angle <= endAngle);
			var withinRadius = (distance >= vm.innerRadius && distance <= vm.outerRadius);

			return (betweenAngles && withinRadius);
		}
		return false;
	},

	getCenterPoint: function() {
		var vm = this._view;
		var halfAngle = (vm.startAngle + vm.endAngle) / 2;
		var halfRadius = (vm.innerRadius + vm.outerRadius) / 2;
		return {
			x: vm.x + Math.cos(halfAngle) * halfRadius,
			y: vm.y + Math.sin(halfAngle) * halfRadius
		};
	},

	getArea: function() {
		var vm = this._view;
		return Math.PI * ((vm.endAngle - vm.startAngle) / (2 * Math.PI)) * (Math.pow(vm.outerRadius, 2) - Math.pow(vm.innerRadius, 2));
	},

	tooltipPosition: function() {
		var vm = this._view;
		var centreAngle = vm.startAngle + ((vm.endAngle - vm.startAngle) / 2);
		var rangeFromCentre = (vm.outerRadius - vm.innerRadius) / 2 + vm.innerRadius;

		return {
			x: vm.x + (Math.cos(centreAngle) * rangeFromCentre),
			y: vm.y + (Math.sin(centreAngle) * rangeFromCentre)
		};
	},

	draw: function() {
		var ctx = this._chart.ctx;
		var vm = this._view;
		var sA = vm.startAngle;
		var eA = vm.endAngle;

		ctx.beginPath();

		ctx.arc(vm.x, vm.y, vm.outerRadius, sA, eA);
		ctx.arc(vm.x, vm.y, vm.innerRadius, eA, sA, true);

		ctx.closePath();
		ctx.strokeStyle = vm.borderColor;
		ctx.lineWidth = vm.borderWidth;

		ctx.fillStyle = vm.backgroundColor;

		ctx.fill();
		ctx.lineJoin = 'bevel';

		if (vm.borderWidth) {
			ctx.stroke();
		}
	}
});

},{"25":25,"26":26,"45":45}],37:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

var globalDefaults = defaults.global;

defaults._set('global', {
	elements: {
		line: {
			tension: 0.4,
			backgroundColor: globalDefaults.defaultColor,
			borderWidth: 3,
			borderColor: globalDefaults.defaultColor,
			borderCapStyle: 'butt',
			borderDash: [],
			borderDashOffset: 0.0,
			borderJoinStyle: 'miter',
			capBezierPoints: true,
			fill: true, // do we fill in the area between the line and its base axis
		}
	}
});

module.exports = Element.extend({
	draw: function() {
		var me = this;
		var vm = me._view;
		var ctx = me._chart.ctx;
		var spanGaps = vm.spanGaps;
		var points = me._children.slice(); // clone array
		var globalOptionLineElements = globalDefaults.elements.line;
		var lastDrawnIndex = -1;
		var index, current, previous, currentVM;

		// If we are looping, adding the first point again
		if (me._loop && points.length) {
			points.push(points[0]);
		}

		ctx.save();

		// Stroke Line Options
		ctx.lineCap = vm.borderCapStyle || globalOptionLineElements.borderCapStyle;

		// IE 9 and 10 do not support line dash
		if (ctx.setLineDash) {
			ctx.setLineDash(vm.borderDash || globalOptionLineElements.borderDash);
		}

		ctx.lineDashOffset = vm.borderDashOffset || globalOptionLineElements.borderDashOffset;
		ctx.lineJoin = vm.borderJoinStyle || globalOptionLineElements.borderJoinStyle;
		ctx.lineWidth = vm.borderWidth || globalOptionLineElements.borderWidth;
		ctx.strokeStyle = vm.borderColor || globalDefaults.defaultColor;

		// Stroke Line
		ctx.beginPath();
		lastDrawnIndex = -1;

		for (index = 0; index < points.length; ++index) {
			current = points[index];
			previous = helpers.previousItem(points, index);
			currentVM = current._view;

			// First point moves to it's starting position no matter what
			if (index === 0) {
				if (!currentVM.skip) {
					ctx.moveTo(currentVM.x, currentVM.y);
					lastDrawnIndex = index;
				}
			} else {
				previous = lastDrawnIndex === -1 ? previous : points[lastDrawnIndex];

				if (!currentVM.skip) {
					if ((lastDrawnIndex !== (index - 1) && !spanGaps) || lastDrawnIndex === -1) {
						// There was a gap and this is the first point after the gap
						ctx.moveTo(currentVM.x, currentVM.y);
					} else {
						// Line to next point
						helpers.canvas.lineTo(ctx, previous._view, current._view);
					}
					lastDrawnIndex = index;
				}
			}
		}

		ctx.stroke();
		ctx.restore();
	}
});

},{"25":25,"26":26,"45":45}],38:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

var defaultColor = defaults.global.defaultColor;

defaults._set('global', {
	elements: {
		point: {
			radius: 3,
			pointStyle: 'circle',
			backgroundColor: defaultColor,
			borderColor: defaultColor,
			borderWidth: 1,
			// Hover
			hitRadius: 1,
			hoverRadius: 4,
			hoverBorderWidth: 1
		}
	}
});

function xRange(mouseX) {
	var vm = this._view;
	return vm ? (Math.pow(mouseX - vm.x, 2) < Math.pow(vm.radius + vm.hitRadius, 2)) : false;
}

function yRange(mouseY) {
	var vm = this._view;
	return vm ? (Math.pow(mouseY - vm.y, 2) < Math.pow(vm.radius + vm.hitRadius, 2)) : false;
}

module.exports = Element.extend({
	inRange: function(mouseX, mouseY) {
		var vm = this._view;
		return vm ? ((Math.pow(mouseX - vm.x, 2) + Math.pow(mouseY - vm.y, 2)) < Math.pow(vm.hitRadius + vm.radius, 2)) : false;
	},

	inLabelRange: xRange,
	inXRange: xRange,
	inYRange: yRange,

	getCenterPoint: function() {
		var vm = this._view;
		return {
			x: vm.x,
			y: vm.y
		};
	},

	getArea: function() {
		return Math.PI * Math.pow(this._view.radius, 2);
	},

	tooltipPosition: function() {
		var vm = this._view;
		return {
			x: vm.x,
			y: vm.y,
			padding: vm.radius + vm.borderWidth
		};
	},

	draw: function(chartArea) {
		var vm = this._view;
		var model = this._model;
		var ctx = this._chart.ctx;
		var pointStyle = vm.pointStyle;
		var radius = vm.radius;
		var x = vm.x;
		var y = vm.y;
		var color = helpers.color;
		var errMargin = 1.01; // 1.01 is margin for Accumulated error. (Especially Edge, IE.)
		var ratio = 0;

		if (vm.skip) {
			return;
		}

		ctx.strokeStyle = vm.borderColor || defaultColor;
		ctx.lineWidth = helpers.valueOrDefault(vm.borderWidth, defaults.global.elements.point.borderWidth);
		ctx.fillStyle = vm.backgroundColor || defaultColor;

		// Cliping for Points.
		// going out from inner charArea?
		if ((chartArea !== undefined) && ((model.x < chartArea.left) || (chartArea.right * errMargin < model.x) || (model.y < chartArea.top) || (chartArea.bottom * errMargin < model.y))) {
			// Point fade out
			if (model.x < chartArea.left) {
				ratio = (x - model.x) / (chartArea.left - model.x);
			} else if (chartArea.right * errMargin < model.x) {
				ratio = (model.x - x) / (model.x - chartArea.right);
			} else if (model.y < chartArea.top) {
				ratio = (y - model.y) / (chartArea.top - model.y);
			} else if (chartArea.bottom * errMargin < model.y) {
				ratio = (model.y - y) / (model.y - chartArea.bottom);
			}
			ratio = Math.round(ratio * 100) / 100;
			ctx.strokeStyle = color(ctx.strokeStyle).alpha(ratio).rgbString();
			ctx.fillStyle = color(ctx.fillStyle).alpha(ratio).rgbString();
		}

		helpers.canvas.drawPoint(ctx, pointStyle, radius, x, y);
	}
});

},{"25":25,"26":26,"45":45}],39:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);

defaults._set('global', {
	elements: {
		rectangle: {
			backgroundColor: defaults.global.defaultColor,
			borderColor: defaults.global.defaultColor,
			borderSkipped: 'bottom',
			borderWidth: 0
		}
	}
});

function isVertical(bar) {
	return bar._view.width !== undefined;
}

/**
 * Helper function to get the bounds of the bar regardless of the orientation
 * @param bar {Chart.Element.Rectangle} the bar
 * @return {Bounds} bounds of the bar
 * @private
 */
function getBarBounds(bar) {
	var vm = bar._view;
	var x1, x2, y1, y2;

	if (isVertical(bar)) {
		// vertical
		var halfWidth = vm.width / 2;
		x1 = vm.x - halfWidth;
		x2 = vm.x + halfWidth;
		y1 = Math.min(vm.y, vm.base);
		y2 = Math.max(vm.y, vm.base);
	} else {
		// horizontal bar
		var halfHeight = vm.height / 2;
		x1 = Math.min(vm.x, vm.base);
		x2 = Math.max(vm.x, vm.base);
		y1 = vm.y - halfHeight;
		y2 = vm.y + halfHeight;
	}

	return {
		left: x1,
		top: y1,
		right: x2,
		bottom: y2
	};
}

module.exports = Element.extend({
	draw: function() {
		var ctx = this._chart.ctx;
		var vm = this._view;
		var left, right, top, bottom, signX, signY, borderSkipped;
		var borderWidth = vm.borderWidth;

		if (!vm.horizontal) {
			// bar
			left = vm.x - vm.width / 2;
			right = vm.x + vm.width / 2;
			top = vm.y;
			bottom = vm.base;
			signX = 1;
			signY = bottom > top ? 1 : -1;
			borderSkipped = vm.borderSkipped || 'bottom';
		} else {
			// horizontal bar
			left = vm.base;
			right = vm.x;
			top = vm.y - vm.height / 2;
			bottom = vm.y + vm.height / 2;
			signX = right > left ? 1 : -1;
			signY = 1;
			borderSkipped = vm.borderSkipped || 'left';
		}

		// Canvas doesn't allow us to stroke inside the width so we can
		// adjust the sizes to fit if we're setting a stroke on the line
		if (borderWidth) {
			// borderWidth shold be less than bar width and bar height.
			var barSize = Math.min(Math.abs(left - right), Math.abs(top - bottom));
			borderWidth = borderWidth > barSize ? barSize : borderWidth;
			var halfStroke = borderWidth / 2;
			// Adjust borderWidth when bar top position is near vm.base(zero).
			var borderLeft = left + (borderSkipped !== 'left' ? halfStroke * signX : 0);
			var borderRight = right + (borderSkipped !== 'right' ? -halfStroke * signX : 0);
			var borderTop = top + (borderSkipped !== 'top' ? halfStroke * signY : 0);
			var borderBottom = bottom + (borderSkipped !== 'bottom' ? -halfStroke * signY : 0);
			// not become a vertical line?
			if (borderLeft !== borderRight) {
				top = borderTop;
				bottom = borderBottom;
			}
			// not become a horizontal line?
			if (borderTop !== borderBottom) {
				left = borderLeft;
				right = borderRight;
			}
		}

		ctx.beginPath();
		ctx.fillStyle = vm.backgroundColor;
		ctx.strokeStyle = vm.borderColor;
		ctx.lineWidth = borderWidth;

		// Corner points, from bottom-left to bottom-right clockwise
		// | 1 2 |
		// | 0 3 |
		var corners = [
			[left, bottom],
			[left, top],
			[right, top],
			[right, bottom]
		];

		// Find first (starting) corner with fallback to 'bottom'
		var borders = ['bottom', 'left', 'top', 'right'];
		var startCorner = borders.indexOf(borderSkipped, 0);
		if (startCorner === -1) {
			startCorner = 0;
		}

		function cornerAt(index) {
			return corners[(startCorner + index) % 4];
		}

		// Draw rectangle from 'startCorner'
		var corner = cornerAt(0);
		ctx.moveTo(corner[0], corner[1]);

		for (var i = 1; i < 4; i++) {
			corner = cornerAt(i);
			ctx.lineTo(corner[0], corner[1]);
		}

		ctx.fill();
		if (borderWidth) {
			ctx.stroke();
		}
	},

	height: function() {
		var vm = this._view;
		return vm.base - vm.y;
	},

	inRange: function(mouseX, mouseY) {
		var inRange = false;

		if (this._view) {
			var bounds = getBarBounds(this);
			inRange = mouseX >= bounds.left && mouseX <= bounds.right && mouseY >= bounds.top && mouseY <= bounds.bottom;
		}

		return inRange;
	},

	inLabelRange: function(mouseX, mouseY) {
		var me = this;
		if (!me._view) {
			return false;
		}

		var inRange = false;
		var bounds = getBarBounds(me);

		if (isVertical(me)) {
			inRange = mouseX >= bounds.left && mouseX <= bounds.right;
		} else {
			inRange = mouseY >= bounds.top && mouseY <= bounds.bottom;
		}

		return inRange;
	},

	inXRange: function(mouseX) {
		var bounds = getBarBounds(this);
		return mouseX >= bounds.left && mouseX <= bounds.right;
	},

	inYRange: function(mouseY) {
		var bounds = getBarBounds(this);
		return mouseY >= bounds.top && mouseY <= bounds.bottom;
	},

	getCenterPoint: function() {
		var vm = this._view;
		var x, y;
		if (isVertical(this)) {
			x = vm.x;
			y = (vm.y + vm.base) / 2;
		} else {
			x = (vm.x + vm.base) / 2;
			y = vm.y;
		}

		return {x: x, y: y};
	},

	getArea: function() {
		var vm = this._view;
		return vm.width * Math.abs(vm.y - vm.base);
	},

	tooltipPosition: function() {
		var vm = this._view;
		return {
			x: vm.x,
			y: vm.y
		};
	}
});

},{"25":25,"26":26}],40:[function(require,module,exports){
'use strict';

module.exports = {};
module.exports.Arc = require(36);
module.exports.Line = require(37);
module.exports.Point = require(38);
module.exports.Rectangle = require(39);

},{"36":36,"37":37,"38":38,"39":39}],41:[function(require,module,exports){
'use strict';

var helpers = require(42);

/**
 * @namespace Chart.helpers.canvas
 */
var exports = module.exports = {
	/**
	 * Clears the entire canvas associated to the given `chart`.
	 * @param {Chart} chart - The chart for which to clear the canvas.
	 */
	clear: function(chart) {
		chart.ctx.clearRect(0, 0, chart.width, chart.height);
	},

	/**
	 * Creates a "path" for a rectangle with rounded corners at position (x, y) with a
	 * given size (width, height) and the same `radius` for all corners.
	 * @param {CanvasRenderingContext2D} ctx - The canvas 2D Context.
	 * @param {Number} x - The x axis of the coordinate for the rectangle starting point.
	 * @param {Number} y - The y axis of the coordinate for the rectangle starting point.
	 * @param {Number} width - The rectangle's width.
	 * @param {Number} height - The rectangle's height.
	 * @param {Number} radius - The rounded amount (in pixels) for the four corners.
	 * @todo handle `radius` as top-left, top-right, bottom-right, bottom-left array/object?
	 */
	roundedRect: function(ctx, x, y, width, height, radius) {
		if (radius) {
			var rx = Math.min(radius, width / 2);
			var ry = Math.min(radius, height / 2);

			ctx.moveTo(x + rx, y);
			ctx.lineTo(x + width - rx, y);
			ctx.quadraticCurveTo(x + width, y, x + width, y + ry);
			ctx.lineTo(x + width, y + height - ry);
			ctx.quadraticCurveTo(x + width, y + height, x + width - rx, y + height);
			ctx.lineTo(x + rx, y + height);
			ctx.quadraticCurveTo(x, y + height, x, y + height - ry);
			ctx.lineTo(x, y + ry);
			ctx.quadraticCurveTo(x, y, x + rx, y);
		} else {
			ctx.rect(x, y, width, height);
		}
	},

	drawPoint: function(ctx, style, radius, x, y) {
		var type, edgeLength, xOffset, yOffset, height, size;

		if (typeof style === 'object') {
			type = style.toString();
			if (type === '[object HTMLImageElement]' || type === '[object HTMLCanvasElement]') {
				ctx.drawImage(style, x - style.width / 2, y - style.height / 2, style.width, style.height);
				return;
			}
		}

		if (isNaN(radius) || radius <= 0) {
			return;
		}

		switch (style) {
		// Default includes circle
		default:
			ctx.beginPath();
			ctx.arc(x, y, radius, 0, Math.PI * 2);
			ctx.closePath();
			ctx.fill();
			break;
		case 'triangle':
			ctx.beginPath();
			edgeLength = 3 * radius / Math.sqrt(3);
			height = edgeLength * Math.sqrt(3) / 2;
			ctx.moveTo(x - edgeLength / 2, y + height / 3);
			ctx.lineTo(x + edgeLength / 2, y + height / 3);
			ctx.lineTo(x, y - 2 * height / 3);
			ctx.closePath();
			ctx.fill();
			break;
		case 'rect':
			size = 1 / Math.SQRT2 * radius;
			ctx.beginPath();
			ctx.fillRect(x - size, y - size, 2 * size, 2 * size);
			ctx.strokeRect(x - size, y - size, 2 * size, 2 * size);
			break;
		case 'rectRounded':
			var offset = radius / Math.SQRT2;
			var leftX = x - offset;
			var topY = y - offset;
			var sideSize = Math.SQRT2 * radius;
			ctx.beginPath();
			this.roundedRect(ctx, leftX, topY, sideSize, sideSize, radius / 2);
			ctx.closePath();
			ctx.fill();
			break;
		case 'rectRot':
			size = 1 / Math.SQRT2 * radius;
			ctx.beginPath();
			ctx.moveTo(x - size, y);
			ctx.lineTo(x, y + size);
			ctx.lineTo(x + size, y);
			ctx.lineTo(x, y - size);
			ctx.closePath();
			ctx.fill();
			break;
		case 'cross':
			ctx.beginPath();
			ctx.moveTo(x, y + radius);
			ctx.lineTo(x, y - radius);
			ctx.moveTo(x - radius, y);
			ctx.lineTo(x + radius, y);
			ctx.closePath();
			break;
		case 'crossRot':
			ctx.beginPath();
			xOffset = Math.cos(Math.PI / 4) * radius;
			yOffset = Math.sin(Math.PI / 4) * radius;
			ctx.moveTo(x - xOffset, y - yOffset);
			ctx.lineTo(x + xOffset, y + yOffset);
			ctx.moveTo(x - xOffset, y + yOffset);
			ctx.lineTo(x + xOffset, y - yOffset);
			ctx.closePath();
			break;
		case 'star':
			ctx.beginPath();
			ctx.moveTo(x, y + radius);
			ctx.lineTo(x, y - radius);
			ctx.moveTo(x - radius, y);
			ctx.lineTo(x + radius, y);
			xOffset = Math.cos(Math.PI / 4) * radius;
			yOffset = Math.sin(Math.PI / 4) * radius;
			ctx.moveTo(x - xOffset, y - yOffset);
			ctx.lineTo(x + xOffset, y + yOffset);
			ctx.moveTo(x - xOffset, y + yOffset);
			ctx.lineTo(x + xOffset, y - yOffset);
			ctx.closePath();
			break;
		case 'line':
			ctx.beginPath();
			ctx.moveTo(x - radius, y);
			ctx.lineTo(x + radius, y);
			ctx.closePath();
			break;
		case 'dash':
			ctx.beginPath();
			ctx.moveTo(x, y);
			ctx.lineTo(x + radius, y);
			ctx.closePath();
			break;
		}

		ctx.stroke();
	},

	clipArea: function(ctx, area) {
		ctx.save();
		ctx.beginPath();
		ctx.rect(area.left, area.top, area.right - area.left, area.bottom - area.top);
		ctx.clip();
	},

	unclipArea: function(ctx) {
		ctx.restore();
	},

	lineTo: function(ctx, previous, target, flip) {
		if (target.steppedLine) {
			if ((target.steppedLine === 'after' && !flip) || (target.steppedLine !== 'after' && flip)) {
				ctx.lineTo(previous.x, target.y);
			} else {
				ctx.lineTo(target.x, previous.y);
			}
			ctx.lineTo(target.x, target.y);
			return;
		}

		if (!target.tension) {
			ctx.lineTo(target.x, target.y);
			return;
		}

		ctx.bezierCurveTo(
			flip ? previous.controlPointPreviousX : previous.controlPointNextX,
			flip ? previous.controlPointPreviousY : previous.controlPointNextY,
			flip ? target.controlPointNextX : target.controlPointPreviousX,
			flip ? target.controlPointNextY : target.controlPointPreviousY,
			target.x,
			target.y);
	}
};

// DEPRECATIONS

/**
 * Provided for backward compatibility, use Chart.helpers.canvas.clear instead.
 * @namespace Chart.helpers.clear
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.clear = exports.clear;

/**
 * Provided for backward compatibility, use Chart.helpers.canvas.roundedRect instead.
 * @namespace Chart.helpers.drawRoundedRectangle
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.drawRoundedRectangle = function(ctx) {
	ctx.beginPath();
	exports.roundedRect.apply(exports, arguments);
	ctx.closePath();
};

},{"42":42}],42:[function(require,module,exports){
'use strict';

/**
 * @namespace Chart.helpers
 */
var helpers = {
	/**
	 * An empty function that can be used, for example, for optional callback.
	 */
	noop: function() {},

	/**
	 * Returns a unique id, sequentially generated from a global variable.
	 * @returns {Number}
	 * @function
	 */
	uid: (function() {
		var id = 0;
		return function() {
			return id++;
		};
	}()),

	/**
	 * Returns true if `value` is neither null nor undefined, else returns false.
	 * @param {*} value - The value to test.
	 * @returns {Boolean}
	 * @since 2.7.0
	 */
	isNullOrUndef: function(value) {
		return value === null || typeof value === 'undefined';
	},

	/**
	 * Returns true if `value` is an array, else returns false.
	 * @param {*} value - The value to test.
	 * @returns {Boolean}
	 * @function
	 */
	isArray: Array.isArray ? Array.isArray : function(value) {
		return Object.prototype.toString.call(value) === '[object Array]';
	},

	/**
	 * Returns true if `value` is an object (excluding null), else returns false.
	 * @param {*} value - The value to test.
	 * @returns {Boolean}
	 * @since 2.7.0
	 */
	isObject: function(value) {
		return value !== null && Object.prototype.toString.call(value) === '[object Object]';
	},

	/**
	 * Returns `value` if defined, else returns `defaultValue`.
	 * @param {*} value - The value to return if defined.
	 * @param {*} defaultValue - The value to return if `value` is undefined.
	 * @returns {*}
	 */
	valueOrDefault: function(value, defaultValue) {
		return typeof value === 'undefined' ? defaultValue : value;
	},

	/**
	 * Returns value at the given `index` in array if defined, else returns `defaultValue`.
	 * @param {Array} value - The array to lookup for value at `index`.
	 * @param {Number} index - The index in `value` to lookup for value.
	 * @param {*} defaultValue - The value to return if `value[index]` is undefined.
	 * @returns {*}
	 */
	valueAtIndexOrDefault: function(value, index, defaultValue) {
		return helpers.valueOrDefault(helpers.isArray(value) ? value[index] : value, defaultValue);
	},

	/**
	 * Calls `fn` with the given `args` in the scope defined by `thisArg` and returns the
	 * value returned by `fn`. If `fn` is not a function, this method returns undefined.
	 * @param {Function} fn - The function to call.
	 * @param {Array|undefined|null} args - The arguments with which `fn` should be called.
	 * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
	 * @returns {*}
	 */
	callback: function(fn, args, thisArg) {
		if (fn && typeof fn.call === 'function') {
			return fn.apply(thisArg, args);
		}
	},

	/**
	 * Note(SB) for performance sake, this method should only be used when loopable type
	 * is unknown or in none intensive code (not called often and small loopable). Else
	 * it's preferable to use a regular for() loop and save extra function calls.
	 * @param {Object|Array} loopable - The object or array to be iterated.
	 * @param {Function} fn - The function to call for each item.
	 * @param {Object} [thisArg] - The value of `this` provided for the call to `fn`.
	 * @param {Boolean} [reverse] - If true, iterates backward on the loopable.
	 */
	each: function(loopable, fn, thisArg, reverse) {
		var i, len, keys;
		if (helpers.isArray(loopable)) {
			len = loopable.length;
			if (reverse) {
				for (i = len - 1; i >= 0; i--) {
					fn.call(thisArg, loopable[i], i);
				}
			} else {
				for (i = 0; i < len; i++) {
					fn.call(thisArg, loopable[i], i);
				}
			}
		} else if (helpers.isObject(loopable)) {
			keys = Object.keys(loopable);
			len = keys.length;
			for (i = 0; i < len; i++) {
				fn.call(thisArg, loopable[keys[i]], keys[i]);
			}
		}
	},

	/**
	 * Returns true if the `a0` and `a1` arrays have the same content, else returns false.
	 * @see http://stackoverflow.com/a/14853974
	 * @param {Array} a0 - The array to compare
	 * @param {Array} a1 - The array to compare
	 * @returns {Boolean}
	 */
	arrayEquals: function(a0, a1) {
		var i, ilen, v0, v1;

		if (!a0 || !a1 || a0.length !== a1.length) {
			return false;
		}

		for (i = 0, ilen = a0.length; i < ilen; ++i) {
			v0 = a0[i];
			v1 = a1[i];

			if (v0 instanceof Array && v1 instanceof Array) {
				if (!helpers.arrayEquals(v0, v1)) {
					return false;
				}
			} else if (v0 !== v1) {
				// NOTE: two different object instances will never be equal: {x:20} != {x:20}
				return false;
			}
		}

		return true;
	},

	/**
	 * Returns a deep copy of `source` without keeping references on objects and arrays.
	 * @param {*} source - The value to clone.
	 * @returns {*}
	 */
	clone: function(source) {
		if (helpers.isArray(source)) {
			return source.map(helpers.clone);
		}

		if (helpers.isObject(source)) {
			var target = {};
			var keys = Object.keys(source);
			var klen = keys.length;
			var k = 0;

			for (; k < klen; ++k) {
				target[keys[k]] = helpers.clone(source[keys[k]]);
			}

			return target;
		}

		return source;
	},

	/**
	 * The default merger when Chart.helpers.merge is called without merger option.
	 * Note(SB): this method is also used by configMerge and scaleMerge as fallback.
	 * @private
	 */
	_merger: function(key, target, source, options) {
		var tval = target[key];
		var sval = source[key];

		if (helpers.isObject(tval) && helpers.isObject(sval)) {
			helpers.merge(tval, sval, options);
		} else {
			target[key] = helpers.clone(sval);
		}
	},

	/**
	 * Merges source[key] in target[key] only if target[key] is undefined.
	 * @private
	 */
	_mergerIf: function(key, target, source) {
		var tval = target[key];
		var sval = source[key];

		if (helpers.isObject(tval) && helpers.isObject(sval)) {
			helpers.mergeIf(tval, sval);
		} else if (!target.hasOwnProperty(key)) {
			target[key] = helpers.clone(sval);
		}
	},

	/**
	 * Recursively deep copies `source` properties into `target` with the given `options`.
	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
	 * @param {Object} target - The target object in which all sources are merged into.
	 * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
	 * @param {Object} [options] - Merging options:
	 * @param {Function} [options.merger] - The merge method (key, target, source, options)
	 * @returns {Object} The `target` object.
	 */
	merge: function(target, source, options) {
		var sources = helpers.isArray(source) ? source : [source];
		var ilen = sources.length;
		var merge, i, keys, klen, k;

		if (!helpers.isObject(target)) {
			return target;
		}

		options = options || {};
		merge = options.merger || helpers._merger;

		for (i = 0; i < ilen; ++i) {
			source = sources[i];
			if (!helpers.isObject(source)) {
				continue;
			}

			keys = Object.keys(source);
			for (k = 0, klen = keys.length; k < klen; ++k) {
				merge(keys[k], target, source, options);
			}
		}

		return target;
	},

	/**
	 * Recursively deep copies `source` properties into `target` *only* if not defined in target.
	 * IMPORTANT: `target` is not cloned and will be updated with `source` properties.
	 * @param {Object} target - The target object in which all sources are merged into.
	 * @param {Object|Array(Object)} source - Object(s) to merge into `target`.
	 * @returns {Object} The `target` object.
	 */
	mergeIf: function(target, source) {
		return helpers.merge(target, source, {merger: helpers._mergerIf});
	}
};

module.exports = helpers;

// DEPRECATIONS

/**
 * Provided for backward compatibility, use Chart.helpers.callback instead.
 * @function Chart.helpers.callCallback
 * @deprecated since version 2.6.0
 * @todo remove at version 3
 * @private
 */
helpers.callCallback = helpers.callback;

/**
 * Provided for backward compatibility, use Array.prototype.indexOf instead.
 * Array.prototype.indexOf compatibility: Chrome, Opera, Safari, FF1.5+, IE9+
 * @function Chart.helpers.indexOf
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.indexOf = function(array, item, fromIndex) {
	return Array.prototype.indexOf.call(array, item, fromIndex);
};

/**
 * Provided for backward compatibility, use Chart.helpers.valueOrDefault instead.
 * @function Chart.helpers.getValueOrDefault
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.getValueOrDefault = helpers.valueOrDefault;

/**
 * Provided for backward compatibility, use Chart.helpers.valueAtIndexOrDefault instead.
 * @function Chart.helpers.getValueAtIndexOrDefault
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.getValueAtIndexOrDefault = helpers.valueAtIndexOrDefault;

},{}],43:[function(require,module,exports){
'use strict';

var helpers = require(42);

/**
 * Easing functions adapted from Robert Penner's easing equations.
 * @namespace Chart.helpers.easingEffects
 * @see http://www.robertpenner.com/easing/
 */
var effects = {
	linear: function(t) {
		return t;
	},

	easeInQuad: function(t) {
		return t * t;
	},

	easeOutQuad: function(t) {
		return -t * (t - 2);
	},

	easeInOutQuad: function(t) {
		if ((t /= 0.5) < 1) {
			return 0.5 * t * t;
		}
		return -0.5 * ((--t) * (t - 2) - 1);
	},

	easeInCubic: function(t) {
		return t * t * t;
	},

	easeOutCubic: function(t) {
		return (t = t - 1) * t * t + 1;
	},

	easeInOutCubic: function(t) {
		if ((t /= 0.5) < 1) {
			return 0.5 * t * t * t;
		}
		return 0.5 * ((t -= 2) * t * t + 2);
	},

	easeInQuart: function(t) {
		return t * t * t * t;
	},

	easeOutQuart: function(t) {
		return -((t = t - 1) * t * t * t - 1);
	},

	easeInOutQuart: function(t) {
		if ((t /= 0.5) < 1) {
			return 0.5 * t * t * t * t;
		}
		return -0.5 * ((t -= 2) * t * t * t - 2);
	},

	easeInQuint: function(t) {
		return t * t * t * t * t;
	},

	easeOutQuint: function(t) {
		return (t = t - 1) * t * t * t * t + 1;
	},

	easeInOutQuint: function(t) {
		if ((t /= 0.5) < 1) {
			return 0.5 * t * t * t * t * t;
		}
		return 0.5 * ((t -= 2) * t * t * t * t + 2);
	},

	easeInSine: function(t) {
		return -Math.cos(t * (Math.PI / 2)) + 1;
	},

	easeOutSine: function(t) {
		return Math.sin(t * (Math.PI / 2));
	},

	easeInOutSine: function(t) {
		return -0.5 * (Math.cos(Math.PI * t) - 1);
	},

	easeInExpo: function(t) {
		return (t === 0) ? 0 : Math.pow(2, 10 * (t - 1));
	},

	easeOutExpo: function(t) {
		return (t === 1) ? 1 : -Math.pow(2, -10 * t) + 1;
	},

	easeInOutExpo: function(t) {
		if (t === 0) {
			return 0;
		}
		if (t === 1) {
			return 1;
		}
		if ((t /= 0.5) < 1) {
			return 0.5 * Math.pow(2, 10 * (t - 1));
		}
		return 0.5 * (-Math.pow(2, -10 * --t) + 2);
	},

	easeInCirc: function(t) {
		if (t >= 1) {
			return t;
		}
		return -(Math.sqrt(1 - t * t) - 1);
	},

	easeOutCirc: function(t) {
		return Math.sqrt(1 - (t = t - 1) * t);
	},

	easeInOutCirc: function(t) {
		if ((t /= 0.5) < 1) {
			return -0.5 * (Math.sqrt(1 - t * t) - 1);
		}
		return 0.5 * (Math.sqrt(1 - (t -= 2) * t) + 1);
	},

	easeInElastic: function(t) {
		var s = 1.70158;
		var p = 0;
		var a = 1;
		if (t === 0) {
			return 0;
		}
		if (t === 1) {
			return 1;
		}
		if (!p) {
			p = 0.3;
		}
		if (a < 1) {
			a = 1;
			s = p / 4;
		} else {
			s = p / (2 * Math.PI) * Math.asin(1 / a);
		}
		return -(a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
	},

	easeOutElastic: function(t) {
		var s = 1.70158;
		var p = 0;
		var a = 1;
		if (t === 0) {
			return 0;
		}
		if (t === 1) {
			return 1;
		}
		if (!p) {
			p = 0.3;
		}
		if (a < 1) {
			a = 1;
			s = p / 4;
		} else {
			s = p / (2 * Math.PI) * Math.asin(1 / a);
		}
		return a * Math.pow(2, -10 * t) * Math.sin((t - s) * (2 * Math.PI) / p) + 1;
	},

	easeInOutElastic: function(t) {
		var s = 1.70158;
		var p = 0;
		var a = 1;
		if (t === 0) {
			return 0;
		}
		if ((t /= 0.5) === 2) {
			return 1;
		}
		if (!p) {
			p = 0.45;
		}
		if (a < 1) {
			a = 1;
			s = p / 4;
		} else {
			s = p / (2 * Math.PI) * Math.asin(1 / a);
		}
		if (t < 1) {
			return -0.5 * (a * Math.pow(2, 10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p));
		}
		return a * Math.pow(2, -10 * (t -= 1)) * Math.sin((t - s) * (2 * Math.PI) / p) * 0.5 + 1;
	},
	easeInBack: function(t) {
		var s = 1.70158;
		return t * t * ((s + 1) * t - s);
	},

	easeOutBack: function(t) {
		var s = 1.70158;
		return (t = t - 1) * t * ((s + 1) * t + s) + 1;
	},

	easeInOutBack: function(t) {
		var s = 1.70158;
		if ((t /= 0.5) < 1) {
			return 0.5 * (t * t * (((s *= (1.525)) + 1) * t - s));
		}
		return 0.5 * ((t -= 2) * t * (((s *= (1.525)) + 1) * t + s) + 2);
	},

	easeInBounce: function(t) {
		return 1 - effects.easeOutBounce(1 - t);
	},

	easeOutBounce: function(t) {
		if (t < (1 / 2.75)) {
			return 7.5625 * t * t;
		}
		if (t < (2 / 2.75)) {
			return 7.5625 * (t -= (1.5 / 2.75)) * t + 0.75;
		}
		if (t < (2.5 / 2.75)) {
			return 7.5625 * (t -= (2.25 / 2.75)) * t + 0.9375;
		}
		return 7.5625 * (t -= (2.625 / 2.75)) * t + 0.984375;
	},

	easeInOutBounce: function(t) {
		if (t < 0.5) {
			return effects.easeInBounce(t * 2) * 0.5;
		}
		return effects.easeOutBounce(t * 2 - 1) * 0.5 + 0.5;
	}
};

module.exports = {
	effects: effects
};

// DEPRECATIONS

/**
 * Provided for backward compatibility, use Chart.helpers.easing.effects instead.
 * @function Chart.helpers.easingEffects
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.easingEffects = effects;

},{"42":42}],44:[function(require,module,exports){
'use strict';

var helpers = require(42);

/**
 * @alias Chart.helpers.options
 * @namespace
 */
module.exports = {
	/**
	 * Converts the given line height `value` in pixels for a specific font `size`.
	 * @param {Number|String} value - The lineHeight to parse (eg. 1.6, '14px', '75%', '1.6em').
	 * @param {Number} size - The font size (in pixels) used to resolve relative `value`.
	 * @returns {Number} The effective line height in pixels (size * 1.2 if value is invalid).
	 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/line-height
	 * @since 2.7.0
	 */
	toLineHeight: function(value, size) {
		var matches = ('' + value).match(/^(normal|(\d+(?:\.\d+)?)(px|em|%)?)$/);
		if (!matches || matches[1] === 'normal') {
			return size * 1.2;
		}

		value = +matches[2];

		switch (matches[3]) {
		case 'px':
			return value;
		case '%':
			value /= 100;
			break;
		default:
			break;
		}

		return size * value;
	},

	/**
	 * Converts the given value into a padding object with pre-computed width/height.
	 * @param {Number|Object} value - If a number, set the value to all TRBL component,
	 *  else, if and object, use defined properties and sets undefined ones to 0.
	 * @returns {Object} The padding values (top, right, bottom, left, width, height)
	 * @since 2.7.0
	 */
	toPadding: function(value) {
		var t, r, b, l;

		if (helpers.isObject(value)) {
			t = +value.top || 0;
			r = +value.right || 0;
			b = +value.bottom || 0;
			l = +value.left || 0;
		} else {
			t = r = b = l = +value || 0;
		}

		return {
			top: t,
			right: r,
			bottom: b,
			left: l,
			height: t + b,
			width: l + r
		};
	},

	/**
	 * Evaluates the given `inputs` sequentially and returns the first defined value.
	 * @param {Array[]} inputs - An array of values, falling back to the last value.
	 * @param {Object} [context] - If defined and the current value is a function, the value
	 * is called with `context` as first argument and the result becomes the new input.
	 * @param {Number} [index] - If defined and the current value is an array, the value
	 * at `index` become the new input.
	 * @since 2.7.0
	 */
	resolve: function(inputs, context, index) {
		var i, ilen, value;

		for (i = 0, ilen = inputs.length; i < ilen; ++i) {
			value = inputs[i];
			if (value === undefined) {
				continue;
			}
			if (context !== undefined && typeof value === 'function') {
				value = value(context);
			}
			if (index !== undefined && helpers.isArray(value)) {
				value = value[index];
			}
			if (value !== undefined) {
				return value;
			}
		}
	}
};

},{"42":42}],45:[function(require,module,exports){
'use strict';

module.exports = require(42);
module.exports.easing = require(43);
module.exports.canvas = require(41);
module.exports.options = require(44);

},{"41":41,"42":42,"43":43,"44":44}],46:[function(require,module,exports){
/**
 * Platform fallback implementation (minimal).
 * @see https://github.com/chartjs/Chart.js/pull/4591#issuecomment-319575939
 */

module.exports = {
	acquireContext: function(item) {
		if (item && item.canvas) {
			// Support for any object associated to a canvas (including a context2d)
			item = item.canvas;
		}

		return item && item.getContext('2d') || null;
	}
};

},{}],47:[function(require,module,exports){
/**
 * Chart.Platform implementation for targeting a web browser
 */

'use strict';

var helpers = require(45);

var EXPANDO_KEY = '$chartjs';
var CSS_PREFIX = 'chartjs-';
var CSS_RENDER_MONITOR = CSS_PREFIX + 'render-monitor';
var CSS_RENDER_ANIMATION = CSS_PREFIX + 'render-animation';
var ANIMATION_START_EVENTS = ['animationstart', 'webkitAnimationStart'];

/**
 * DOM event types -> Chart.js event types.
 * Note: only events with different types are mapped.
 * @see https://developer.mozilla.org/en-US/docs/Web/Events
 */
var EVENT_TYPES = {
	touchstart: 'mousedown',
	touchmove: 'mousemove',
	touchend: 'mouseup',
	pointerenter: 'mouseenter',
	pointerdown: 'mousedown',
	pointermove: 'mousemove',
	pointerup: 'mouseup',
	pointerleave: 'mouseout',
	pointerout: 'mouseout'
};

/**
 * The "used" size is the final value of a dimension property after all calculations have
 * been performed. This method uses the computed style of `element` but returns undefined
 * if the computed style is not expressed in pixels. That can happen in some cases where
 * `element` has a size relative to its parent and this last one is not yet displayed,
 * for example because of `display: none` on a parent node.
 * @see https://developer.mozilla.org/en-US/docs/Web/CSS/used_value
 * @returns {Number} Size in pixels or undefined if unknown.
 */
function readUsedSize(element, property) {
	var value = helpers.getStyle(element, property);
	var matches = value && value.match(/^(\d+)(\.\d+)?px$/);
	return matches ? Number(matches[1]) : undefined;
}

/**
 * Initializes the canvas style and render size without modifying the canvas display size,
 * since responsiveness is handled by the controller.resize() method. The config is used
 * to determine the aspect ratio to apply in case no explicit height has been specified.
 */
function initCanvas(canvas, config) {
	var style = canvas.style;

	// NOTE(SB) canvas.getAttribute('width') !== canvas.width: in the first case it
	// returns null or '' if no explicit value has been set to the canvas attribute.
	var renderHeight = canvas.getAttribute('height');
	var renderWidth = canvas.getAttribute('width');

	// Chart.js modifies some canvas values that we want to restore on destroy
	canvas[EXPANDO_KEY] = {
		initial: {
			height: renderHeight,
			width: renderWidth,
			style: {
				display: style.display,
				height: style.height,
				width: style.width
			}
		}
	};

	// Force canvas to display as block to avoid extra space caused by inline
	// elements, which would interfere with the responsive resize process.
	// https://github.com/chartjs/Chart.js/issues/2538
	style.display = style.display || 'block';

	if (renderWidth === null || renderWidth === '') {
		var displayWidth = readUsedSize(canvas, 'width');
		if (displayWidth !== undefined) {
			canvas.width = displayWidth;
		}
	}

	if (renderHeight === null || renderHeight === '') {
		if (canvas.style.height === '') {
			// If no explicit render height and style height, let's apply the aspect ratio,
			// which one can be specified by the user but also by charts as default option
			// (i.e. options.aspectRatio). If not specified, use canvas aspect ratio of 2.
			canvas.height = canvas.width / (config.options.aspectRatio || 2);
		} else {
			var displayHeight = readUsedSize(canvas, 'height');
			if (displayWidth !== undefined) {
				canvas.height = displayHeight;
			}
		}
	}

	return canvas;
}

/**
 * Detects support for options object argument in addEventListener.
 * https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener#Safely_detecting_option_support
 * @private
 */
var supportsEventListenerOptions = (function() {
	var supports = false;
	try {
		var options = Object.defineProperty({}, 'passive', {
			get: function() {
				supports = true;
			}
		});
		window.addEventListener('e', null, options);
	} catch (e) {
		// continue regardless of error
	}
	return supports;
}());

// Default passive to true as expected by Chrome for 'touchstart' and 'touchend' events.
// https://github.com/chartjs/Chart.js/issues/4287
var eventListenerOptions = supportsEventListenerOptions ? {passive: true} : false;

function addEventListener(node, type, listener) {
	node.addEventListener(type, listener, eventListenerOptions);
}

function removeEventListener(node, type, listener) {
	node.removeEventListener(type, listener, eventListenerOptions);
}

function createEvent(type, chart, x, y, nativeEvent) {
	return {
		type: type,
		chart: chart,
		native: nativeEvent || null,
		x: x !== undefined ? x : null,
		y: y !== undefined ? y : null,
	};
}

function fromNativeEvent(event, chart) {
	var type = EVENT_TYPES[event.type] || event.type;
	var pos = helpers.getRelativePosition(event, chart);
	return createEvent(type, chart, pos.x, pos.y, event);
}

function throttled(fn, thisArg) {
	var ticking = false;
	var args = [];

	return function() {
		args = Array.prototype.slice.call(arguments);
		thisArg = thisArg || this;

		if (!ticking) {
			ticking = true;
			helpers.requestAnimFrame.call(window, function() {
				ticking = false;
				fn.apply(thisArg, args);
			});
		}
	};
}

// Implementation based on https://github.com/marcj/css-element-queries
function createResizer(handler) {
	var resizer = document.createElement('div');
	var cls = CSS_PREFIX + 'size-monitor';
	var maxSize = 1000000;
	var style =
		'position:absolute;' +
		'left:0;' +
		'top:0;' +
		'right:0;' +
		'bottom:0;' +
		'overflow:hidden;' +
		'pointer-events:none;' +
		'visibility:hidden;' +
		'z-index:-1;';

	resizer.style.cssText = style;
	resizer.className = cls;
	resizer.innerHTML =
		'<div class="' + cls + '-expand" style="' + style + '">' +
			'<div style="' +
				'position:absolute;' +
				'width:' + maxSize + 'px;' +
				'height:' + maxSize + 'px;' +
				'left:0;' +
				'top:0">' +
			'</div>' +
		'</div>' +
		'<div class="' + cls + '-shrink" style="' + style + '">' +
			'<div style="' +
				'position:absolute;' +
				'width:200%;' +
				'height:200%;' +
				'left:0; ' +
				'top:0">' +
			'</div>' +
		'</div>';

	var expand = resizer.childNodes[0];
	var shrink = resizer.childNodes[1];

	resizer._reset = function() {
		expand.scrollLeft = maxSize;
		expand.scrollTop = maxSize;
		shrink.scrollLeft = maxSize;
		shrink.scrollTop = maxSize;
	};
	var onScroll = function() {
		resizer._reset();
		handler();
	};

	addEventListener(expand, 'scroll', onScroll.bind(expand, 'expand'));
	addEventListener(shrink, 'scroll', onScroll.bind(shrink, 'shrink'));

	return resizer;
}

// https://davidwalsh.name/detect-node-insertion
function watchForRender(node, handler) {
	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});
	var proxy = expando.renderProxy = function(e) {
		if (e.animationName === CSS_RENDER_ANIMATION) {
			handler();
		}
	};

	helpers.each(ANIMATION_START_EVENTS, function(type) {
		addEventListener(node, type, proxy);
	});

	node.classList.add(CSS_RENDER_MONITOR);
}

function unwatchForRender(node) {
	var expando = node[EXPANDO_KEY] || {};
	var proxy = expando.renderProxy;

	if (proxy) {
		helpers.each(ANIMATION_START_EVENTS, function(type) {
			removeEventListener(node, type, proxy);
		});

		delete expando.renderProxy;
	}

	node.classList.remove(CSS_RENDER_MONITOR);
}

function addResizeListener(node, listener, chart) {
	var expando = node[EXPANDO_KEY] || (node[EXPANDO_KEY] = {});

	// Let's keep track of this added resizer and thus avoid DOM query when removing it.
	var resizer = expando.resizer = createResizer(throttled(function() {
		if (expando.resizer) {
			return listener(createEvent('resize', chart));
		}
	}));

	// The resizer needs to be attached to the node parent, so we first need to be
	// sure that `node` is attached to the DOM before injecting the resizer element.
	watchForRender(node, function() {
		if (expando.resizer) {
			var container = node.parentNode;
			if (container && container !== resizer.parentNode) {
				container.insertBefore(resizer, container.firstChild);
			}

			// The container size might have changed, let's reset the resizer state.
			resizer._reset();
		}
	});
}

function removeResizeListener(node) {
	var expando = node[EXPANDO_KEY] || {};
	var resizer = expando.resizer;

	delete expando.resizer;
	unwatchForRender(node);

	if (resizer && resizer.parentNode) {
		resizer.parentNode.removeChild(resizer);
	}
}

function injectCSS(platform, css) {
	// http://stackoverflow.com/q/3922139
	var style = platform._style || document.createElement('style');
	if (!platform._style) {
		platform._style = style;
		css = '/* Chart.js */\n' + css;
		style.setAttribute('type', 'text/css');
		document.getElementsByTagName('head')[0].appendChild(style);
	}

	style.appendChild(document.createTextNode(css));
}

module.exports = {
	/**
	 * This property holds whether this platform is enabled for the current environment.
	 * Currently used by platform.js to select the proper implementation.
	 * @private
	 */
	_enabled: typeof window !== 'undefined' && typeof document !== 'undefined',

	initialize: function() {
		var keyframes = 'from{opacity:0.99}to{opacity:1}';

		injectCSS(this,
			// DOM rendering detection
			// https://davidwalsh.name/detect-node-insertion
			'@-webkit-keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
			'@keyframes ' + CSS_RENDER_ANIMATION + '{' + keyframes + '}' +
			'.' + CSS_RENDER_MONITOR + '{' +
				'-webkit-animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
				'animation:' + CSS_RENDER_ANIMATION + ' 0.001s;' +
			'}'
		);
	},

	acquireContext: function(item, config) {
		if (typeof item === 'string') {
			item = document.getElementById(item);
		} else if (item.length) {
			// Support for array based queries (such as jQuery)
			item = item[0];
		}

		if (item && item.canvas) {
			// Support for any object associated to a canvas (including a context2d)
			item = item.canvas;
		}

		// To prevent canvas fingerprinting, some add-ons undefine the getContext
		// method, for example: https://github.com/kkapsner/CanvasBlocker
		// https://github.com/chartjs/Chart.js/issues/2807
		var context = item && item.getContext && item.getContext('2d');

		// `instanceof HTMLCanvasElement/CanvasRenderingContext2D` fails when the item is
		// inside an iframe or when running in a protected environment. We could guess the
		// types from their toString() value but let's keep things flexible and assume it's
		// a sufficient condition if the item has a context2D which has item as `canvas`.
		// https://github.com/chartjs/Chart.js/issues/3887
		// https://github.com/chartjs/Chart.js/issues/4102
		// https://github.com/chartjs/Chart.js/issues/4152
		if (context && context.canvas === item) {
			initCanvas(item, config);
			return context;
		}

		return null;
	},

	releaseContext: function(context) {
		var canvas = context.canvas;
		if (!canvas[EXPANDO_KEY]) {
			return;
		}

		var initial = canvas[EXPANDO_KEY].initial;
		['height', 'width'].forEach(function(prop) {
			var value = initial[prop];
			if (helpers.isNullOrUndef(value)) {
				canvas.removeAttribute(prop);
			} else {
				canvas.setAttribute(prop, value);
			}
		});

		helpers.each(initial.style || {}, function(value, key) {
			canvas.style[key] = value;
		});

		// The canvas render size might have been changed (and thus the state stack discarded),
		// we can't use save() and restore() to restore the initial state. So make sure that at
		// least the canvas context is reset to the default state by setting the canvas width.
		// https://www.w3.org/TR/2011/WD-html5-20110525/the-canvas-element.html
		canvas.width = canvas.width;

		delete canvas[EXPANDO_KEY];
	},

	addEventListener: function(chart, type, listener) {
		var canvas = chart.canvas;
		if (type === 'resize') {
			// Note: the resize event is not supported on all browsers.
			addResizeListener(canvas, listener, chart);
			return;
		}

		var expando = listener[EXPANDO_KEY] || (listener[EXPANDO_KEY] = {});
		var proxies = expando.proxies || (expando.proxies = {});
		var proxy = proxies[chart.id + '_' + type] = function(event) {
			listener(fromNativeEvent(event, chart));
		};

		addEventListener(canvas, type, proxy);
	},

	removeEventListener: function(chart, type, listener) {
		var canvas = chart.canvas;
		if (type === 'resize') {
			// Note: the resize event is not supported on all browsers.
			removeResizeListener(canvas, listener);
			return;
		}

		var expando = listener[EXPANDO_KEY] || {};
		var proxies = expando.proxies || {};
		var proxy = proxies[chart.id + '_' + type];
		if (!proxy) {
			return;
		}

		removeEventListener(canvas, type, proxy);
	}
};

// DEPRECATIONS

/**
 * Provided for backward compatibility, use EventTarget.addEventListener instead.
 * EventTarget.addEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
 * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener
 * @function Chart.helpers.addEvent
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.addEvent = addEventListener;

/**
 * Provided for backward compatibility, use EventTarget.removeEventListener instead.
 * EventTarget.removeEventListener compatibility: Chrome, Opera 7, Safari, FF1.5+, IE9+
 * @see https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/removeEventListener
 * @function Chart.helpers.removeEvent
 * @deprecated since version 2.7.0
 * @todo remove at version 3
 * @private
 */
helpers.removeEvent = removeEventListener;

},{"45":45}],48:[function(require,module,exports){
'use strict';

var helpers = require(45);
var basic = require(46);
var dom = require(47);

// @TODO Make possible to select another platform at build time.
var implementation = dom._enabled ? dom : basic;

/**
 * @namespace Chart.platform
 * @see https://chartjs.gitbooks.io/proposals/content/Platform.html
 * @since 2.4.0
 */
module.exports = helpers.extend({
	/**
	 * @since 2.7.0
	 */
	initialize: function() {},

	/**
	 * Called at chart construction time, returns a context2d instance implementing
	 * the [W3C Canvas 2D Context API standard]{@link https://www.w3.org/TR/2dcontext/}.
	 * @param {*} item - The native item from which to acquire context (platform specific)
	 * @param {Object} options - The chart options
	 * @returns {CanvasRenderingContext2D} context2d instance
	 */
	acquireContext: function() {},

	/**
	 * Called at chart destruction time, releases any resources associated to the context
	 * previously returned by the acquireContext() method.
	 * @param {CanvasRenderingContext2D} context - The context2d instance
	 * @returns {Boolean} true if the method succeeded, else false
	 */
	releaseContext: function() {},

	/**
	 * Registers the specified listener on the given chart.
	 * @param {Chart} chart - Chart from which to listen for event
	 * @param {String} type - The ({@link IEvent}) type to listen for
	 * @param {Function} listener - Receives a notification (an object that implements
	 * the {@link IEvent} interface) when an event of the specified type occurs.
	 */
	addEventListener: function() {},

	/**
	 * Removes the specified listener previously registered with addEventListener.
	 * @param {Chart} chart -Chart from which to remove the listener
	 * @param {String} type - The ({@link IEvent}) type to remove
	 * @param {Function} listener - The listener function to remove from the event target.
	 */
	removeEventListener: function() {}

}, implementation);

/**
 * @interface IPlatform
 * Allows abstracting platform dependencies away from the chart
 * @borrows Chart.platform.acquireContext as acquireContext
 * @borrows Chart.platform.releaseContext as releaseContext
 * @borrows Chart.platform.addEventListener as addEventListener
 * @borrows Chart.platform.removeEventListener as removeEventListener
 */

/**
 * @interface IEvent
 * @prop {String} type - The event type name, possible values are:
 * 'contextmenu', 'mouseenter', 'mousedown', 'mousemove', 'mouseup', 'mouseout',
 * 'click', 'dblclick', 'keydown', 'keypress', 'keyup' and 'resize'
 * @prop {*} native - The original native event (null for emulated events, e.g. 'resize')
 * @prop {Number} x - The mouse x position, relative to the canvas (null for incompatible events)
 * @prop {Number} y - The mouse y position, relative to the canvas (null for incompatible events)
 */

},{"45":45,"46":46,"47":47}],49:[function(require,module,exports){
/**
 * Plugin based on discussion from the following Chart.js issues:
 * @see https://github.com/chartjs/Chart.js/issues/2380#issuecomment-279961569
 * @see https://github.com/chartjs/Chart.js/issues/2440#issuecomment-256461897
 */

'use strict';

var defaults = require(25);
var elements = require(40);
var helpers = require(45);

defaults._set('global', {
	plugins: {
		filler: {
			propagate: true
		}
	}
});

module.exports = function() {

	var mappers = {
		dataset: function(source) {
			var index = source.fill;
			var chart = source.chart;
			var meta = chart.getDatasetMeta(index);
			var visible = meta && chart.isDatasetVisible(index);
			var points = (visible && meta.dataset._children) || [];
			var length = points.length || 0;

			return !length ? null : function(point, i) {
				return (i < length && points[i]._view) || null;
			};
		},

		boundary: function(source) {
			var boundary = source.boundary;
			var x = boundary ? boundary.x : null;
			var y = boundary ? boundary.y : null;

			return function(point) {
				return {
					x: x === null ? point.x : x,
					y: y === null ? point.y : y,
				};
			};
		}
	};

	// @todo if (fill[0] === '#')
	function decodeFill(el, index, count) {
		var model = el._model || {};
		var fill = model.fill;
		var target;

		if (fill === undefined) {
			fill = !!model.backgroundColor;
		}

		if (fill === false || fill === null) {
			return false;
		}

		if (fill === true) {
			return 'origin';
		}

		target = parseFloat(fill, 10);
		if (isFinite(target) && Math.floor(target) === target) {
			if (fill[0] === '-' || fill[0] === '+') {
				target = index + target;
			}

			if (target === index || target < 0 || target >= count) {
				return false;
			}

			return target;
		}

		switch (fill) {
		// compatibility
		case 'bottom':
			return 'start';
		case 'top':
			return 'end';
		case 'zero':
			return 'origin';
		// supported boundaries
		case 'origin':
		case 'start':
		case 'end':
			return fill;
		// invalid fill values
		default:
			return false;
		}
	}

	function computeBoundary(source) {
		var model = source.el._model || {};
		var scale = source.el._scale || {};
		var fill = source.fill;
		var target = null;
		var horizontal;

		if (isFinite(fill)) {
			return null;
		}

		// Backward compatibility: until v3, we still need to support boundary values set on
		// the model (scaleTop, scaleBottom and scaleZero) because some external plugins and
		// controllers might still use it (e.g. the Smith chart).

		if (fill === 'start') {
			target = model.scaleBottom === undefined ? scale.bottom : model.scaleBottom;
		} else if (fill === 'end') {
			target = model.scaleTop === undefined ? scale.top : model.scaleTop;
		} else if (model.scaleZero !== undefined) {
			target = model.scaleZero;
		} else if (scale.getBasePosition) {
			target = scale.getBasePosition();
		} else if (scale.getBasePixel) {
			target = scale.getBasePixel();
		}

		if (target !== undefined && target !== null) {
			if (target.x !== undefined && target.y !== undefined) {
				return target;
			}

			if (typeof target === 'number' && isFinite(target)) {
				horizontal = scale.isHorizontal();
				return {
					x: horizontal ? target : null,
					y: horizontal ? null : target
				};
			}
		}

		return null;
	}

	function resolveTarget(sources, index, propagate) {
		var source = sources[index];
		var fill = source.fill;
		var visited = [index];
		var target;

		if (!propagate) {
			return fill;
		}

		while (fill !== false && visited.indexOf(fill) === -1) {
			if (!isFinite(fill)) {
				return fill;
			}

			target = sources[fill];
			if (!target) {
				return false;
			}

			if (target.visible) {
				return fill;
			}

			visited.push(fill);
			fill = target.fill;
		}

		return false;
	}

	function createMapper(source) {
		var fill = source.fill;
		var type = 'dataset';

		if (fill === false) {
			return null;
		}

		if (!isFinite(fill)) {
			type = 'boundary';
		}

		return mappers[type](source);
	}

	function isDrawable(point) {
		return point && !point.skip;
	}

	function drawArea(ctx, curve0, curve1, len0, len1) {
		var i;

		if (!len0 || !len1) {
			return;
		}

		// building first area curve (normal)
		ctx.moveTo(curve0[0].x, curve0[0].y);
		for (i = 1; i < len0; ++i) {
			helpers.canvas.lineTo(ctx, curve0[i - 1], curve0[i]);
		}

		// joining the two area curves
		ctx.lineTo(curve1[len1 - 1].x, curve1[len1 - 1].y);

		// building opposite area curve (reverse)
		for (i = len1 - 1; i > 0; --i) {
			helpers.canvas.lineTo(ctx, curve1[i], curve1[i - 1], true);
		}
	}

	function doFill(ctx, points, mapper, view, color, loop) {
		var count = points.length;
		var span = view.spanGaps;
		var curve0 = [];
		var curve1 = [];
		var len0 = 0;
		var len1 = 0;
		var i, ilen, index, p0, p1, d0, d1;

		ctx.beginPath();

		for (i = 0, ilen = (count + !!loop); i < ilen; ++i) {
			index = i % count;
			p0 = points[index]._view;
			p1 = mapper(p0, index, view);
			d0 = isDrawable(p0);
			d1 = isDrawable(p1);

			if (d0 && d1) {
				len0 = curve0.push(p0);
				len1 = curve1.push(p1);
			} else if (len0 && len1) {
				if (!span) {
					drawArea(ctx, curve0, curve1, len0, len1);
					len0 = len1 = 0;
					curve0 = [];
					curve1 = [];
				} else {
					if (d0) {
						curve0.push(p0);
					}
					if (d1) {
						curve1.push(p1);
					}
				}
			}
		}

		drawArea(ctx, curve0, curve1, len0, len1);

		ctx.closePath();
		ctx.fillStyle = color;
		ctx.fill();
	}

	return {
		id: 'filler',

		afterDatasetsUpdate: function(chart, options) {
			var count = (chart.data.datasets || []).length;
			var propagate = options.propagate;
			var sources = [];
			var meta, i, el, source;

			for (i = 0; i < count; ++i) {
				meta = chart.getDatasetMeta(i);
				el = meta.dataset;
				source = null;

				if (el && el._model && el instanceof elements.Line) {
					source = {
						visible: chart.isDatasetVisible(i),
						fill: decodeFill(el, i, count),
						chart: chart,
						el: el
					};
				}

				meta.$filler = source;
				sources.push(source);
			}

			for (i = 0; i < count; ++i) {
				source = sources[i];
				if (!source) {
					continue;
				}

				source.fill = resolveTarget(sources, i, propagate);
				source.boundary = computeBoundary(source);
				source.mapper = createMapper(source);
			}
		},

		beforeDatasetDraw: function(chart, args) {
			var meta = args.meta.$filler;
			if (!meta) {
				return;
			}

			var ctx = chart.ctx;
			var el = meta.el;
			var view = el._view;
			var points = el._children || [];
			var mapper = meta.mapper;
			var color = view.backgroundColor || defaults.global.defaultColor;

			if (mapper && color && points.length) {
				helpers.canvas.clipArea(ctx, chart.chartArea);
				doFill(ctx, points, mapper, view, color, el._loop);
				helpers.canvas.unclipArea(ctx);
			}
		}
	};
};

},{"25":25,"40":40,"45":45}],50:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

defaults._set('global', {
	legend: {
		display: true,
		position: 'top',
		fullWidth: true,
		reverse: false,
		weight: 1000,

		// a callback that will handle
		onClick: function(e, legendItem) {
			var index = legendItem.datasetIndex;
			var ci = this.chart;
			var meta = ci.getDatasetMeta(index);

			// See controller.isDatasetVisible comment
			meta.hidden = meta.hidden === null ? !ci.data.datasets[index].hidden : null;

			// We hid a dataset ... rerender the chart
			ci.update();
		},

		onHover: null,

		labels: {
			boxWidth: 40,
			padding: 10,
			// Generates labels shown in the legend
			// Valid properties to return:
			// text : text to display
			// fillStyle : fill of coloured box
			// strokeStyle: stroke of coloured box
			// hidden : if this legend item refers to a hidden item
			// lineCap : cap style for line
			// lineDash
			// lineDashOffset :
			// lineJoin :
			// lineWidth :
			generateLabels: function(chart) {
				var data = chart.data;
				return helpers.isArray(data.datasets) ? data.datasets.map(function(dataset, i) {
					return {
						text: dataset.label,
						fillStyle: (!helpers.isArray(dataset.backgroundColor) ? dataset.backgroundColor : dataset.backgroundColor[0]),
						hidden: !chart.isDatasetVisible(i),
						lineCap: dataset.borderCapStyle,
						lineDash: dataset.borderDash,
						lineDashOffset: dataset.borderDashOffset,
						lineJoin: dataset.borderJoinStyle,
						lineWidth: dataset.borderWidth,
						strokeStyle: dataset.borderColor,
						pointStyle: dataset.pointStyle,

						// Below is extra data used for toggling the datasets
						datasetIndex: i
					};
				}, this) : [];
			}
		}
	},

	legendCallback: function(chart) {
		var text = [];
		text.push('<ul class="' + chart.id + '-legend">');
		for (var i = 0; i < chart.data.datasets.length; i++) {
			text.push('<li><span style="background-color:' + chart.data.datasets[i].backgroundColor + '"></span>');
			if (chart.data.datasets[i].label) {
				text.push(chart.data.datasets[i].label);
			}
			text.push('</li>');
		}
		text.push('</ul>');
		return text.join('');
	}
});

module.exports = function(Chart) {

	var layout = Chart.layoutService;
	var noop = helpers.noop;

	/**
	 * Helper function to get the box width based on the usePointStyle option
	 * @param labelopts {Object} the label options on the legend
	 * @param fontSize {Number} the label font size
	 * @return {Number} width of the color box area
	 */
	function getBoxWidth(labelOpts, fontSize) {
		return labelOpts.usePointStyle ?
			fontSize * Math.SQRT2 :
			labelOpts.boxWidth;
	}

	Chart.Legend = Element.extend({

		initialize: function(config) {
			helpers.extend(this, config);

			// Contains hit boxes for each dataset (in dataset order)
			this.legendHitBoxes = [];

			// Are we in doughnut mode which has a different data type
			this.doughnutMode = false;
		},

		// These methods are ordered by lifecycle. Utilities then follow.
		// Any function defined here is inherited by all legend types.
		// Any function can be extended by the legend type

		beforeUpdate: noop,
		update: function(maxWidth, maxHeight, margins) {
			var me = this;

			// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
			me.beforeUpdate();

			// Absorb the master measurements
			me.maxWidth = maxWidth;
			me.maxHeight = maxHeight;
			me.margins = margins;

			// Dimensions
			me.beforeSetDimensions();
			me.setDimensions();
			me.afterSetDimensions();
			// Labels
			me.beforeBuildLabels();
			me.buildLabels();
			me.afterBuildLabels();

			// Fit
			me.beforeFit();
			me.fit();
			me.afterFit();
			//
			me.afterUpdate();

			return me.minSize;
		},
		afterUpdate: noop,

		//

		beforeSetDimensions: noop,
		setDimensions: function() {
			var me = this;
			// Set the unconstrained dimension before label rotation
			if (me.isHorizontal()) {
				// Reset position before calculating rotation
				me.width = me.maxWidth;
				me.left = 0;
				me.right = me.width;
			} else {
				me.height = me.maxHeight;

				// Reset position before calculating rotation
				me.top = 0;
				me.bottom = me.height;
			}

			// Reset padding
			me.paddingLeft = 0;
			me.paddingTop = 0;
			me.paddingRight = 0;
			me.paddingBottom = 0;

			// Reset minSize
			me.minSize = {
				width: 0,
				height: 0
			};
		},
		afterSetDimensions: noop,

		//

		beforeBuildLabels: noop,
		buildLabels: function() {
			var me = this;
			var labelOpts = me.options.labels || {};
			var legendItems = helpers.callback(labelOpts.generateLabels, [me.chart], me) || [];

			if (labelOpts.filter) {
				legendItems = legendItems.filter(function(item) {
					return labelOpts.filter(item, me.chart.data);
				});
			}

			if (me.options.reverse) {
				legendItems.reverse();
			}

			me.legendItems = legendItems;
		},
		afterBuildLabels: noop,

		//

		beforeFit: noop,
		fit: function() {
			var me = this;
			var opts = me.options;
			var labelOpts = opts.labels;
			var display = opts.display;

			var ctx = me.ctx;

			var globalDefault = defaults.global;
			var valueOrDefault = helpers.valueOrDefault;
			var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
			var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
			var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
			var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);

			// Reset hit boxes
			var hitboxes = me.legendHitBoxes = [];

			var minSize = me.minSize;
			var isHorizontal = me.isHorizontal();

			if (isHorizontal) {
				minSize.width = me.maxWidth; // fill all the width
				minSize.height = display ? 10 : 0;
			} else {
				minSize.width = display ? 10 : 0;
				minSize.height = me.maxHeight; // fill all the height
			}

			// Increase sizes here
			if (display) {
				ctx.font = labelFont;

				if (isHorizontal) {
					// Labels

					// Width of each line of legend boxes. Labels wrap onto multiple lines when there are too many to fit on one
					var lineWidths = me.lineWidths = [0];
					var totalHeight = me.legendItems.length ? fontSize + (labelOpts.padding) : 0;

					ctx.textAlign = 'left';
					ctx.textBaseline = 'top';

					helpers.each(me.legendItems, function(legendItem, i) {
						var boxWidth = getBoxWidth(labelOpts, fontSize);
						var width = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;

						if (lineWidths[lineWidths.length - 1] + width + labelOpts.padding >= me.width) {
							totalHeight += fontSize + (labelOpts.padding);
							lineWidths[lineWidths.length] = me.left;
						}

						// Store the hitbox width and height here. Final position will be updated in `draw`
						hitboxes[i] = {
							left: 0,
							top: 0,
							width: width,
							height: fontSize
						};

						lineWidths[lineWidths.length - 1] += width + labelOpts.padding;
					});

					minSize.height += totalHeight;

				} else {
					var vPadding = labelOpts.padding;
					var columnWidths = me.columnWidths = [];
					var totalWidth = labelOpts.padding;
					var currentColWidth = 0;
					var currentColHeight = 0;
					var itemHeight = fontSize + vPadding;

					helpers.each(me.legendItems, function(legendItem, i) {
						var boxWidth = getBoxWidth(labelOpts, fontSize);
						var itemWidth = boxWidth + (fontSize / 2) + ctx.measureText(legendItem.text).width;

						// If too tall, go to new column
						if (currentColHeight + itemHeight > minSize.height) {
							totalWidth += currentColWidth + labelOpts.padding;
							columnWidths.push(currentColWidth); // previous column width

							currentColWidth = 0;
							currentColHeight = 0;
						}

						// Get max width
						currentColWidth = Math.max(currentColWidth, itemWidth);
						currentColHeight += itemHeight;

						// Store the hitbox width and height here. Final position will be updated in `draw`
						hitboxes[i] = {
							left: 0,
							top: 0,
							width: itemWidth,
							height: fontSize
						};
					});

					totalWidth += currentColWidth;
					columnWidths.push(currentColWidth);
					minSize.width += totalWidth;
				}
			}

			me.width = minSize.width;
			me.height = minSize.height;
		},
		afterFit: noop,

		// Shared Methods
		isHorizontal: function() {
			return this.options.position === 'top' || this.options.position === 'bottom';
		},

		// Actually draw the legend on the canvas
		draw: function() {
			var me = this;
			var opts = me.options;
			var labelOpts = opts.labels;
			var globalDefault = defaults.global;
			var lineDefault = globalDefault.elements.line;
			var legendWidth = me.width;
			var lineWidths = me.lineWidths;

			if (opts.display) {
				var ctx = me.ctx;
				var valueOrDefault = helpers.valueOrDefault;
				var fontColor = valueOrDefault(labelOpts.fontColor, globalDefault.defaultFontColor);
				var fontSize = valueOrDefault(labelOpts.fontSize, globalDefault.defaultFontSize);
				var fontStyle = valueOrDefault(labelOpts.fontStyle, globalDefault.defaultFontStyle);
				var fontFamily = valueOrDefault(labelOpts.fontFamily, globalDefault.defaultFontFamily);
				var labelFont = helpers.fontString(fontSize, fontStyle, fontFamily);
				var cursor;

				// Canvas setup
				ctx.textAlign = 'left';
				ctx.textBaseline = 'middle';
				ctx.lineWidth = 0.5;
				ctx.strokeStyle = fontColor; // for strikethrough effect
				ctx.fillStyle = fontColor; // render in correct colour
				ctx.font = labelFont;

				var boxWidth = getBoxWidth(labelOpts, fontSize);
				var hitboxes = me.legendHitBoxes;

				// current position
				var drawLegendBox = function(x, y, legendItem) {
					if (isNaN(boxWidth) || boxWidth <= 0) {
						return;
					}

					// Set the ctx for the box
					ctx.save();

					ctx.fillStyle = valueOrDefault(legendItem.fillStyle, globalDefault.defaultColor);
					ctx.lineCap = valueOrDefault(legendItem.lineCap, lineDefault.borderCapStyle);
					ctx.lineDashOffset = valueOrDefault(legendItem.lineDashOffset, lineDefault.borderDashOffset);
					ctx.lineJoin = valueOrDefault(legendItem.lineJoin, lineDefault.borderJoinStyle);
					ctx.lineWidth = valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth);
					ctx.strokeStyle = valueOrDefault(legendItem.strokeStyle, globalDefault.defaultColor);
					var isLineWidthZero = (valueOrDefault(legendItem.lineWidth, lineDefault.borderWidth) === 0);

					if (ctx.setLineDash) {
						// IE 9 and 10 do not support line dash
						ctx.setLineDash(valueOrDefault(legendItem.lineDash, lineDefault.borderDash));
					}

					if (opts.labels && opts.labels.usePointStyle) {
						// Recalculate x and y for drawPoint() because its expecting
						// x and y to be center of figure (instead of top left)
						var radius = fontSize * Math.SQRT2 / 2;
						var offSet = radius / Math.SQRT2;
						var centerX = x + offSet;
						var centerY = y + offSet;

						// Draw pointStyle as legend symbol
						helpers.canvas.drawPoint(ctx, legendItem.pointStyle, radius, centerX, centerY);
					} else {
						// Draw box as legend symbol
						if (!isLineWidthZero) {
							ctx.strokeRect(x, y, boxWidth, fontSize);
						}
						ctx.fillRect(x, y, boxWidth, fontSize);
					}

					ctx.restore();
				};
				var fillText = function(x, y, legendItem, textWidth) {
					var halfFontSize = fontSize / 2;
					var xLeft = boxWidth + halfFontSize + x;
					var yMiddle = y + halfFontSize;

					ctx.fillText(legendItem.text, xLeft, yMiddle);

					if (legendItem.hidden) {
						// Strikethrough the text if hidden
						ctx.beginPath();
						ctx.lineWidth = 2;
						ctx.moveTo(xLeft, yMiddle);
						ctx.lineTo(xLeft + textWidth, yMiddle);
						ctx.stroke();
					}
				};

				// Horizontal
				var isHorizontal = me.isHorizontal();
				if (isHorizontal) {
					cursor = {
						x: me.left + ((legendWidth - lineWidths[0]) / 2),
						y: me.top + labelOpts.padding,
						line: 0
					};
				} else {
					cursor = {
						x: me.left + labelOpts.padding,
						y: me.top + labelOpts.padding,
						line: 0
					};
				}

				var itemHeight = fontSize + labelOpts.padding;
				helpers.each(me.legendItems, function(legendItem, i) {
					var textWidth = ctx.measureText(legendItem.text).width;
					var width = boxWidth + (fontSize / 2) + textWidth;
					var x = cursor.x;
					var y = cursor.y;

					if (isHorizontal) {
						if (x + width >= legendWidth) {
							y = cursor.y += itemHeight;
							cursor.line++;
							x = cursor.x = me.left + ((legendWidth - lineWidths[cursor.line]) / 2);
						}
					} else if (y + itemHeight > me.bottom) {
						x = cursor.x = x + me.columnWidths[cursor.line] + labelOpts.padding;
						y = cursor.y = me.top + labelOpts.padding;
						cursor.line++;
					}

					drawLegendBox(x, y, legendItem);

					hitboxes[i].left = x;
					hitboxes[i].top = y;

					// Fill the actual label
					fillText(x, y, legendItem, textWidth);

					if (isHorizontal) {
						cursor.x += width + (labelOpts.padding);
					} else {
						cursor.y += itemHeight;
					}

				});
			}
		},

		/**
		 * Handle an event
		 * @private
		 * @param {IEvent} event - The event to handle
		 * @return {Boolean} true if a change occured
		 */
		handleEvent: function(e) {
			var me = this;
			var opts = me.options;
			var type = e.type === 'mouseup' ? 'click' : e.type;
			var changed = false;

			if (type === 'mousemove') {
				if (!opts.onHover) {
					return;
				}
			} else if (type === 'click') {
				if (!opts.onClick) {
					return;
				}
			} else {
				return;
			}

			// Chart event already has relative position in it
			var x = e.x;
			var y = e.y;

			if (x >= me.left && x <= me.right && y >= me.top && y <= me.bottom) {
				// See if we are touching one of the dataset boxes
				var lh = me.legendHitBoxes;
				for (var i = 0; i < lh.length; ++i) {
					var hitBox = lh[i];

					if (x >= hitBox.left && x <= hitBox.left + hitBox.width && y >= hitBox.top && y <= hitBox.top + hitBox.height) {
						// Touching an element
						if (type === 'click') {
							// use e.native for backwards compatibility
							opts.onClick.call(me, e.native, me.legendItems[i]);
							changed = true;
							break;
						} else if (type === 'mousemove') {
							// use e.native for backwards compatibility
							opts.onHover.call(me, e.native, me.legendItems[i]);
							changed = true;
							break;
						}
					}
				}
			}

			return changed;
		}
	});

	function createNewLegendAndAttach(chart, legendOpts) {
		var legend = new Chart.Legend({
			ctx: chart.ctx,
			options: legendOpts,
			chart: chart
		});

		layout.configure(chart, legend, legendOpts);
		layout.addBox(chart, legend);
		chart.legend = legend;
	}

	return {
		id: 'legend',

		beforeInit: function(chart) {
			var legendOpts = chart.options.legend;

			if (legendOpts) {
				createNewLegendAndAttach(chart, legendOpts);
			}
		},

		beforeUpdate: function(chart) {
			var legendOpts = chart.options.legend;
			var legend = chart.legend;

			if (legendOpts) {
				helpers.mergeIf(legendOpts, defaults.global.legend);

				if (legend) {
					layout.configure(chart, legend, legendOpts);
					legend.options = legendOpts;
				} else {
					createNewLegendAndAttach(chart, legendOpts);
				}
			} else if (legend) {
				layout.removeBox(chart, legend);
				delete chart.legend;
			}
		},

		afterEvent: function(chart, e) {
			var legend = chart.legend;
			if (legend) {
				legend.handleEvent(e);
			}
		}
	};
};

},{"25":25,"26":26,"45":45}],51:[function(require,module,exports){
'use strict';

var defaults = require(25);
var Element = require(26);
var helpers = require(45);

defaults._set('global', {
	title: {
		display: false,
		fontStyle: 'bold',
		fullWidth: true,
		lineHeight: 1.2,
		padding: 10,
		position: 'top',
		text: '',
		weight: 2000         // by default greater than legend (1000) to be above
	}
});

module.exports = function(Chart) {

	var layout = Chart.layoutService;
	var noop = helpers.noop;

	Chart.Title = Element.extend({
		initialize: function(config) {
			var me = this;
			helpers.extend(me, config);

			// Contains hit boxes for each dataset (in dataset order)
			me.legendHitBoxes = [];
		},

		// These methods are ordered by lifecycle. Utilities then follow.

		beforeUpdate: noop,
		update: function(maxWidth, maxHeight, margins) {
			var me = this;

			// Update Lifecycle - Probably don't want to ever extend or overwrite this function ;)
			me.beforeUpdate();

			// Absorb the master measurements
			me.maxWidth = maxWidth;
			me.maxHeight = maxHeight;
			me.margins = margins;

			// Dimensions
			me.beforeSetDimensions();
			me.setDimensions();
			me.afterSetDimensions();
			// Labels
			me.beforeBuildLabels();
			me.buildLabels();
			me.afterBuildLabels();

			// Fit
			me.beforeFit();
			me.fit();
			me.afterFit();
			//
			me.afterUpdate();

			return me.minSize;

		},
		afterUpdate: noop,

		//

		beforeSetDimensions: noop,
		setDimensions: function() {
			var me = this;
			// Set the unconstrained dimension before label rotation
			if (me.isHorizontal()) {
				// Reset position before calculating rotation
				me.width = me.maxWidth;
				me.left = 0;
				me.right = me.width;
			} else {
				me.height = me.maxHeight;

				// Reset position before calculating rotation
				me.top = 0;
				me.bottom = me.height;
			}

			// Reset padding
			me.paddingLeft = 0;
			me.paddingTop = 0;
			me.paddingRight = 0;
			me.paddingBottom = 0;

			// Reset minSize
			me.minSize = {
				width: 0,
				height: 0
			};
		},
		afterSetDimensions: noop,

		//

		beforeBuildLabels: noop,
		buildLabels: noop,
		afterBuildLabels: noop,

		//

		beforeFit: noop,
		fit: function() {
			var me = this;
			var valueOrDefault = helpers.valueOrDefault;
			var opts = me.options;
			var display = opts.display;
			var fontSize = valueOrDefault(opts.fontSize, defaults.global.defaultFontSize);
			var minSize = me.minSize;
			var lineCount = helpers.isArray(opts.text) ? opts.text.length : 1;
			var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
			var textSize = display ? (lineCount * lineHeight) + (opts.padding * 2) : 0;

			if (me.isHorizontal()) {
				minSize.width = me.maxWidth; // fill all the width
				minSize.height = textSize;
			} else {
				minSize.width = textSize;
				minSize.height = me.maxHeight; // fill all the height
			}

			me.width = minSize.width;
			me.height = minSize.height;

		},
		afterFit: noop,

		// Shared Methods
		isHorizontal: function() {
			var pos = this.options.position;
			return pos === 'top' || pos === 'bottom';
		},

		// Actually draw the title block on the canvas
		draw: function() {
			var me = this;
			var ctx = me.ctx;
			var valueOrDefault = helpers.valueOrDefault;
			var opts = me.options;
			var globalDefaults = defaults.global;

			if (opts.display) {
				var fontSize = valueOrDefault(opts.fontSize, globalDefaults.defaultFontSize);
				var fontStyle = valueOrDefault(opts.fontStyle, globalDefaults.defaultFontStyle);
				var fontFamily = valueOrDefault(opts.fontFamily, globalDefaults.defaultFontFamily);
				var titleFont = helpers.fontString(fontSize, fontStyle, fontFamily);
				var lineHeight = helpers.options.toLineHeight(opts.lineHeight, fontSize);
				var offset = lineHeight / 2 + opts.padding;
				var rotation = 0;
				var top = me.top;
				var left = me.left;
				var bottom = me.bottom;
				var right = me.right;
				var maxWidth, titleX, titleY;

				ctx.fillStyle = valueOrDefault(opts.fontColor, globalDefaults.defaultFontColor); // render in correct colour
				ctx.font = titleFont;

				// Horizontal
				if (me.isHorizontal()) {
					titleX = left + ((right - left) / 2); // midpoint of the width
					titleY = top + offset;
					maxWidth = right - left;
				} else {
					titleX = opts.position === 'left' ? left + offset : right - offset;
					titleY = top + ((bottom - top) / 2);
					maxWidth = bottom - top;
					rotation = Math.PI * (opts.position === 'left' ? -0.5 : 0.5);
				}

				ctx.save();
				ctx.translate(titleX, titleY);
				ctx.rotate(rotation);
				ctx.textAlign = 'center';
				ctx.textBaseline = 'middle';

				var text = opts.text;
				if (helpers.isArray(text)) {
					var y = 0;
					for (var i = 0; i < text.length; ++i) {
						ctx.fillText(text[i], 0, y, maxWidth);
						y += lineHeight;
					}
				} else {
					ctx.fillText(text, 0, 0, maxWidth);
				}

				ctx.restore();
			}
		}
	});

	function createNewTitleBlockAndAttach(chart, titleOpts) {
		var title = new Chart.Title({
			ctx: chart.ctx,
			options: titleOpts,
			chart: chart
		});

		layout.configure(chart, title, titleOpts);
		layout.addBox(chart, title);
		chart.titleBlock = title;
	}

	return {
		id: 'title',

		beforeInit: function(chart) {
			var titleOpts = chart.options.title;

			if (titleOpts) {
				createNewTitleBlockAndAttach(chart, titleOpts);
			}
		},

		beforeUpdate: function(chart) {
			var titleOpts = chart.options.title;
			var titleBlock = chart.titleBlock;

			if (titleOpts) {
				helpers.mergeIf(titleOpts, defaults.global.title);

				if (titleBlock) {
					layout.configure(chart, titleBlock, titleOpts);
					titleBlock.options = titleOpts;
				} else {
					createNewTitleBlockAndAttach(chart, titleOpts);
				}
			} else if (titleBlock) {
				Chart.layoutService.removeBox(chart, titleBlock);
				delete chart.titleBlock;
			}
		}
	};
};

},{"25":25,"26":26,"45":45}],52:[function(require,module,exports){
'use strict';

module.exports = function(Chart) {

	// Default config for a category scale
	var defaultConfig = {
		position: 'bottom'
	};

	var DatasetScale = Chart.Scale.extend({
		/**
		* Internal function to get the correct labels. If data.xLabels or data.yLabels are defined, use those
		* else fall back to data.labels
		* @private
		*/
		getLabels: function() {
			var data = this.chart.data;
			return this.options.labels || (this.isHorizontal() ? data.xLabels : data.yLabels) || data.labels;
		},

		determineDataLimits: function() {
			var me = this;
			var labels = me.getLabels();
			me.minIndex = 0;
			me.maxIndex = labels.length - 1;
			var findIndex;

			if (me.options.ticks.min !== undefined) {
				// user specified min value
				findIndex = labels.indexOf(me.options.ticks.min);
				me.minIndex = findIndex !== -1 ? findIndex : me.minIndex;
			}

			if (me.options.ticks.max !== undefined) {
				// user specified max value
				findIndex = labels.indexOf(me.options.ticks.max);
				me.maxIndex = findIndex !== -1 ? findIndex : me.maxIndex;
			}

			me.min = labels[me.minIndex];
			me.max = labels[me.maxIndex];
		},

		buildTicks: function() {
			var me = this;
			var labels = me.getLabels();
			// If we are viewing some subset of labels, slice the original array
			me.ticks = (me.minIndex === 0 && me.maxIndex === labels.length - 1) ? labels : labels.slice(me.minIndex, me.maxIndex + 1);
		},

		getLabelForIndex: function(index, datasetIndex) {
			var me = this;
			var data = me.chart.data;
			var isHorizontal = me.isHorizontal();

			if (data.yLabels && !isHorizontal) {
				return me.getRightValue(data.datasets[datasetIndex].data[index]);
			}
			return me.ticks[index - me.minIndex];
		},

		// Used to get data value locations.  Value can either be an index or a numerical value
		getPixelForValue: function(value, index) {
			var me = this;
			var offset = me.options.offset;
			// 1 is added because we need the length but we have the indexes
			var offsetAmt = Math.max((me.maxIndex + 1 - me.minIndex - (offset ? 0 : 1)), 1);

			// If value is a data object, then index is the index in the data array,
			// not the index of the scale. We need to change that.
			var valueCategory;
			if (value !== undefined && value !== null) {
				valueCategory = me.isHorizontal() ? value.x : value.y;
			}
			if (valueCategory !== undefined || (value !== undefined && isNaN(index))) {
				var labels = me.getLabels();
				value = valueCategory || value;
				var idx = labels.indexOf(value);
				index = idx !== -1 ? idx : index;
			}

			if (me.isHorizontal()) {
				var valueWidth = me.width / offsetAmt;
				var widthOffset = (valueWidth * (index - me.minIndex));

				if (offset) {
					widthOffset += (valueWidth / 2);
				}

				return me.left + Math.round(widthOffset);
			}
			var valueHeight = me.height / offsetAmt;
			var heightOffset = (valueHeight * (index - me.minIndex));

			if (offset) {
				heightOffset += (valueHeight / 2);
			}

			return me.top + Math.round(heightOffset);
		},
		getPixelForTick: function(index) {
			return this.getPixelForValue(this.ticks[index], index + this.minIndex, null);
		},
		getValueForPixel: function(pixel) {
			var me = this;
			var offset = me.options.offset;
			var value;
			var offsetAmt = Math.max((me._ticks.length - (offset ? 0 : 1)), 1);
			var horz = me.isHorizontal();
			var valueDimension = (horz ? me.width : me.height) / offsetAmt;

			pixel -= horz ? me.left : me.top;

			if (offset) {
				pixel -= (valueDimension / 2);
			}

			if (pixel <= 0) {
				value = 0;
			} else {
				value = Math.round(pixel / valueDimension);
			}

			return value + me.minIndex;
		},
		getBasePixel: function() {
			return this.bottom;
		}
	});

	Chart.scaleService.registerScaleType('category', DatasetScale, defaultConfig);

};

},{}],53:[function(require,module,exports){
'use strict';

var defaults = require(25);
var helpers = require(45);
var Ticks = require(34);

module.exports = function(Chart) {

	var defaultConfig = {
		position: 'left',
		ticks: {
			callback: Ticks.formatters.linear
		}
	};

	var LinearScale = Chart.LinearScaleBase.extend({

		determineDataLimits: function() {
			var me = this;
			var opts = me.options;
			var chart = me.chart;
			var data = chart.data;
			var datasets = data.datasets;
			var isHorizontal = me.isHorizontal();
			var DEFAULT_MIN = 0;
			var DEFAULT_MAX = 1;

			function IDMatches(meta) {
				return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
			}

			// First Calculate the range
			me.min = null;
			me.max = null;

			var hasStacks = opts.stacked;
			if (hasStacks === undefined) {
				helpers.each(datasets, function(dataset, datasetIndex) {
					if (hasStacks) {
						return;
					}

					var meta = chart.getDatasetMeta(datasetIndex);
					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
						meta.stack !== undefined) {
						hasStacks = true;
					}
				});
			}

			if (opts.stacked || hasStacks) {
				var valuesPerStack = {};

				helpers.each(datasets, function(dataset, datasetIndex) {
					var meta = chart.getDatasetMeta(datasetIndex);
					var key = [
						meta.type,
						// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
						((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
						meta.stack
					].join('.');

					if (valuesPerStack[key] === undefined) {
						valuesPerStack[key] = {
							positiveValues: [],
							negativeValues: []
						};
					}

					// Store these per type
					var positiveValues = valuesPerStack[key].positiveValues;
					var negativeValues = valuesPerStack[key].negativeValues;

					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
						helpers.each(dataset.data, function(rawValue, index) {
							var value = +me.getRightValue(rawValue);
							if (isNaN(value) || meta.data[index].hidden) {
								return;
							}

							positiveValues[index] = positiveValues[index] || 0;
							negativeValues[index] = negativeValues[index] || 0;

							if (opts.relativePoints) {
								positiveValues[index] = 100;
							} else if (value < 0) {
								negativeValues[index] += value;
							} else {
								positiveValues[index] += value;
							}
						});
					}
				});

				helpers.each(valuesPerStack, function(valuesForType) {
					var values = valuesForType.positiveValues.concat(valuesForType.negativeValues);
					var minVal = helpers.min(values);
					var maxVal = helpers.max(values);
					me.min = me.min === null ? minVal : Math.min(me.min, minVal);
					me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
				});

			} else {
				helpers.each(datasets, function(dataset, datasetIndex) {
					var meta = chart.getDatasetMeta(datasetIndex);
					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
						helpers.each(dataset.data, function(rawValue, index) {
							var value = +me.getRightValue(rawValue);
							if (isNaN(value) || meta.data[index].hidden) {
								return;
							}

							if (me.min === null) {
								me.min = value;
							} else if (value < me.min) {
								me.min = value;
							}

							if (me.max === null) {
								me.max = value;
							} else if (value > me.max) {
								me.max = value;
							}
						});
					}
				});
			}

			me.min = isFinite(me.min) && !isNaN(me.min) ? me.min : DEFAULT_MIN;
			me.max = isFinite(me.max) && !isNaN(me.max) ? me.max : DEFAULT_MAX;

			// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
			this.handleTickRangeOptions();
		},
		getTickLimit: function() {
			var maxTicks;
			var me = this;
			var tickOpts = me.options.ticks;

			if (me.isHorizontal()) {
				maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.width / 50));
			} else {
				// The factor of 2 used to scale the font size has been experimentally determined.
				var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, defaults.global.defaultFontSize);
				maxTicks = Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(me.height / (2 * tickFontSize)));
			}

			return maxTicks;
		},
		// Called after the ticks are built. We need
		handleDirectionalChanges: function() {
			if (!this.isHorizontal()) {
				// We are in a vertical orientation. The top value is the highest. So reverse the array
				this.ticks.reverse();
			}
		},
		getLabelForIndex: function(index, datasetIndex) {
			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
		},
		// Utils
		getPixelForValue: function(value) {
			// This must be called after fit has been run so that
			// this.left, this.top, this.right, and this.bottom have been defined
			var me = this;
			var start = me.start;

			var rightValue = +me.getRightValue(value);
			var pixel;
			var range = me.end - start;

			if (me.isHorizontal()) {
				pixel = me.left + (me.width / range * (rightValue - start));
				return Math.round(pixel);
			}

			pixel = me.bottom - (me.height / range * (rightValue - start));
			return Math.round(pixel);
		},
		getValueForPixel: function(pixel) {
			var me = this;
			var isHorizontal = me.isHorizontal();
			var innerDimension = isHorizontal ? me.width : me.height;
			var offset = (isHorizontal ? pixel - me.left : me.bottom - pixel) / innerDimension;
			return me.start + ((me.end - me.start) * offset);
		},
		getPixelForTick: function(index) {
			return this.getPixelForValue(this.ticksAsNumbers[index]);
		}
	});
	Chart.scaleService.registerScaleType('linear', LinearScale, defaultConfig);

};

},{"25":25,"34":34,"45":45}],54:[function(require,module,exports){
'use strict';

var helpers = require(45);
var Ticks = require(34);

module.exports = function(Chart) {

	var noop = helpers.noop;

	Chart.LinearScaleBase = Chart.Scale.extend({
		getRightValue: function(value) {
			if (typeof value === 'string') {
				return +value;
			}
			return Chart.Scale.prototype.getRightValue.call(this, value);
		},

		handleTickRangeOptions: function() {
			var me = this;
			var opts = me.options;
			var tickOpts = opts.ticks;

			// If we are forcing it to begin at 0, but 0 will already be rendered on the chart,
			// do nothing since that would make the chart weird. If the user really wants a weird chart
			// axis, they can manually override it
			if (tickOpts.beginAtZero) {
				var minSign = helpers.sign(me.min);
				var maxSign = helpers.sign(me.max);

				if (minSign < 0 && maxSign < 0) {
					// move the top up to 0
					me.max = 0;
				} else if (minSign > 0 && maxSign > 0) {
					// move the bottom down to 0
					me.min = 0;
				}
			}

			var setMin = tickOpts.min !== undefined || tickOpts.suggestedMin !== undefined;
			var setMax = tickOpts.max !== undefined || tickOpts.suggestedMax !== undefined;

			if (tickOpts.min !== undefined) {
				me.min = tickOpts.min;
			} else if (tickOpts.suggestedMin !== undefined) {
				if (me.min === null) {
					me.min = tickOpts.suggestedMin;
				} else {
					me.min = Math.min(me.min, tickOpts.suggestedMin);
				}
			}

			if (tickOpts.max !== undefined) {
				me.max = tickOpts.max;
			} else if (tickOpts.suggestedMax !== undefined) {
				if (me.max === null) {
					me.max = tickOpts.suggestedMax;
				} else {
					me.max = Math.max(me.max, tickOpts.suggestedMax);
				}
			}

			if (setMin !== setMax) {
				// We set the min or the max but not both.
				// So ensure that our range is good
				// Inverted or 0 length range can happen when
				// ticks.min is set, and no datasets are visible
				if (me.min >= me.max) {
					if (setMin) {
						me.max = me.min + 1;
					} else {
						me.min = me.max - 1;
					}
				}
			}

			if (me.min === me.max) {
				me.max++;

				if (!tickOpts.beginAtZero) {
					me.min--;
				}
			}
		},
		getTickLimit: noop,
		handleDirectionalChanges: noop,

		buildTicks: function() {
			var me = this;
			var opts = me.options;
			var tickOpts = opts.ticks;

			// Figure out what the max number of ticks we can support it is based on the size of
			// the axis area. For now, we say that the minimum tick spacing in pixels must be 50
			// We also limit the maximum number of ticks to 11 which gives a nice 10 squares on
			// the graph. Make sure we always have at least 2 ticks
			var maxTicks = me.getTickLimit();
			maxTicks = Math.max(2, maxTicks);

			var numericGeneratorOptions = {
				maxTicks: maxTicks,
				min: tickOpts.min,
				max: tickOpts.max,
				stepSize: helpers.valueOrDefault(tickOpts.fixedStepSize, tickOpts.stepSize)
			};
			var ticks = me.ticks = Ticks.generators.linear(numericGeneratorOptions, me);

			me.handleDirectionalChanges();

			// At this point, we need to update our max and min given the tick values since we have expanded the
			// range of the scale
			me.max = helpers.max(ticks);
			me.min = helpers.min(ticks);

			if (tickOpts.reverse) {
				ticks.reverse();

				me.start = me.max;
				me.end = me.min;
			} else {
				me.start = me.min;
				me.end = me.max;
			}
		},
		convertTicksToLabels: function() {
			var me = this;
			me.ticksAsNumbers = me.ticks.slice();
			me.zeroLineIndex = me.ticks.indexOf(0);

			Chart.Scale.prototype.convertTicksToLabels.call(me);
		}
	});
};

},{"34":34,"45":45}],55:[function(require,module,exports){
'use strict';

var helpers = require(45);
var Ticks = require(34);

module.exports = function(Chart) {

	var defaultConfig = {
		position: 'left',

		// label settings
		ticks: {
			callback: Ticks.formatters.logarithmic
		}
	};

	var LogarithmicScale = Chart.Scale.extend({
		determineDataLimits: function() {
			var me = this;
			var opts = me.options;
			var tickOpts = opts.ticks;
			var chart = me.chart;
			var data = chart.data;
			var datasets = data.datasets;
			var valueOrDefault = helpers.valueOrDefault;
			var isHorizontal = me.isHorizontal();
			function IDMatches(meta) {
				return isHorizontal ? meta.xAxisID === me.id : meta.yAxisID === me.id;
			}

			// Calculate Range
			me.min = null;
			me.max = null;
			me.minNotZero = null;

			var hasStacks = opts.stacked;
			if (hasStacks === undefined) {
				helpers.each(datasets, function(dataset, datasetIndex) {
					if (hasStacks) {
						return;
					}

					var meta = chart.getDatasetMeta(datasetIndex);
					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta) &&
						meta.stack !== undefined) {
						hasStacks = true;
					}
				});
			}

			if (opts.stacked || hasStacks) {
				var valuesPerStack = {};

				helpers.each(datasets, function(dataset, datasetIndex) {
					var meta = chart.getDatasetMeta(datasetIndex);
					var key = [
						meta.type,
						// we have a separate stack for stack=undefined datasets when the opts.stacked is undefined
						((opts.stacked === undefined && meta.stack === undefined) ? datasetIndex : ''),
						meta.stack
					].join('.');

					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
						if (valuesPerStack[key] === undefined) {
							valuesPerStack[key] = [];
						}

						helpers.each(dataset.data, function(rawValue, index) {
							var values = valuesPerStack[key];
							var value = +me.getRightValue(rawValue);
							if (isNaN(value) || meta.data[index].hidden) {
								return;
							}

							values[index] = values[index] || 0;

							if (opts.relativePoints) {
								values[index] = 100;
							} else {
								// Don't need to split positive and negative since the log scale can't handle a 0 crossing
								values[index] += value;
							}
						});
					}
				});

				helpers.each(valuesPerStack, function(valuesForType) {
					var minVal = helpers.min(valuesForType);
					var maxVal = helpers.max(valuesForType);
					me.min = me.min === null ? minVal : Math.min(me.min, minVal);
					me.max = me.max === null ? maxVal : Math.max(me.max, maxVal);
				});

			} else {
				helpers.each(datasets, function(dataset, datasetIndex) {
					var meta = chart.getDatasetMeta(datasetIndex);
					if (chart.isDatasetVisible(datasetIndex) && IDMatches(meta)) {
						helpers.each(dataset.data, function(rawValue, index) {
							var value = +me.getRightValue(rawValue);
							if (isNaN(value) || meta.data[index].hidden) {
								return;
							}

							if (me.min === null) {
								me.min = value;
							} else if (value < me.min) {
								me.min = value;
							}

							if (me.max === null) {
								me.max = value;
							} else if (value > me.max) {
								me.max = value;
							}

							if (value !== 0 && (me.minNotZero === null || value < me.minNotZero)) {
								me.minNotZero = value;
							}
						});
					}
				});
			}

			me.min = valueOrDefault(tickOpts.min, me.min);
			me.max = valueOrDefault(tickOpts.max, me.max);

			if (me.min === me.max) {
				if (me.min !== 0 && me.min !== null) {
					me.min = Math.pow(10, Math.floor(helpers.log10(me.min)) - 1);
					me.max = Math.pow(10, Math.floor(helpers.log10(me.max)) + 1);
				} else {
					me.min = 1;
					me.max = 10;
				}
			}
		},
		buildTicks: function() {
			var me = this;
			var opts = me.options;
			var tickOpts = opts.ticks;

			var generationOptions = {
				min: tickOpts.min,
				max: tickOpts.max
			};
			var ticks = me.ticks = Ticks.generators.logarithmic(generationOptions, me);

			if (!me.isHorizontal()) {
				// We are in a vertical orientation. The top value is the highest. So reverse the array
				ticks.reverse();
			}

			// At this point, we need to update our max and min given the tick values since we have expanded the
			// range of the scale
			me.max = helpers.max(ticks);
			me.min = helpers.min(ticks);

			if (tickOpts.reverse) {
				ticks.reverse();

				me.start = me.max;
				me.end = me.min;
			} else {
				me.start = me.min;
				me.end = me.max;
			}
		},
		convertTicksToLabels: function() {
			this.tickValues = this.ticks.slice();

			Chart.Scale.prototype.convertTicksToLabels.call(this);
		},
		// Get the correct tooltip label
		getLabelForIndex: function(index, datasetIndex) {
			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
		},
		getPixelForTick: function(index) {
			return this.getPixelForValue(this.tickValues[index]);
		},
		getPixelForValue: function(value) {
			var me = this;
			var start = me.start;
			var newVal = +me.getRightValue(value);
			var opts = me.options;
			var tickOpts = opts.ticks;
			var innerDimension, pixel, range;

			if (me.isHorizontal()) {
				range = helpers.log10(me.end) - helpers.log10(start); // todo: if start === 0
				if (newVal === 0) {
					pixel = me.left;
				} else {
					innerDimension = me.width;
					pixel = me.left + (innerDimension / range * (helpers.log10(newVal) - helpers.log10(start)));
				}
			} else {
				// Bottom - top since pixels increase downward on a screen
				innerDimension = me.height;
				if (start === 0 && !tickOpts.reverse) {
					range = helpers.log10(me.end) - helpers.log10(me.minNotZero);
					if (newVal === start) {
						pixel = me.bottom;
					} else if (newVal === me.minNotZero) {
						pixel = me.bottom - innerDimension * 0.02;
					} else {
						pixel = me.bottom - innerDimension * 0.02 - (innerDimension * 0.98 / range * (helpers.log10(newVal) - helpers.log10(me.minNotZero)));
					}
				} else if (me.end === 0 && tickOpts.reverse) {
					range = helpers.log10(me.start) - helpers.log10(me.minNotZero);
					if (newVal === me.end) {
						pixel = me.top;
					} else if (newVal === me.minNotZero) {
						pixel = me.top + innerDimension * 0.02;
					} else {
						pixel = me.top + innerDimension * 0.02 + (innerDimension * 0.98 / range * (helpers.log10(newVal) - helpers.log10(me.minNotZero)));
					}
				} else if (newVal === 0) {
					pixel = tickOpts.reverse ? me.top : me.bottom;
				} else {
					range = helpers.log10(me.end) - helpers.log10(start);
					innerDimension = me.height;
					pixel = me.bottom - (innerDimension / range * (helpers.log10(newVal) - helpers.log10(start)));
				}
			}
			return pixel;
		},
		getValueForPixel: function(pixel) {
			var me = this;
			var range = helpers.log10(me.end) - helpers.log10(me.start);
			var value, innerDimension;

			if (me.isHorizontal()) {
				innerDimension = me.width;
				value = me.start * Math.pow(10, (pixel - me.left) * range / innerDimension);
			} else { // todo: if start === 0
				innerDimension = me.height;
				value = Math.pow(10, (me.bottom - pixel) * range / innerDimension) / me.start;
			}
			return value;
		}
	});
	Chart.scaleService.registerScaleType('logarithmic', LogarithmicScale, defaultConfig);

};

},{"34":34,"45":45}],56:[function(require,module,exports){
'use strict';

var defaults = require(25);
var helpers = require(45);
var Ticks = require(34);

module.exports = function(Chart) {

	var globalDefaults = defaults.global;

	var defaultConfig = {
		display: true,

		// Boolean - Whether to animate scaling the chart from the centre
		animate: true,
		position: 'chartArea',

		angleLines: {
			display: true,
			color: 'rgba(0, 0, 0, 0.1)',
			lineWidth: 1
		},

		gridLines: {
			circular: false
		},

		// label settings
		ticks: {
			// Boolean - Show a backdrop to the scale label
			showLabelBackdrop: true,

			// String - The colour of the label backdrop
			backdropColor: 'rgba(255,255,255,0.75)',

			// Number - The backdrop padding above & below the label in pixels
			backdropPaddingY: 2,

			// Number - The backdrop padding to the side of the label in pixels
			backdropPaddingX: 2,

			callback: Ticks.formatters.linear
		},

		pointLabels: {
			// Boolean - if true, show point labels
			display: true,

			// Number - Point label font size in pixels
			fontSize: 10,

			// Function - Used to convert point labels
			callback: function(label) {
				return label;
			}
		}
	};

	function getValueCount(scale) {
		var opts = scale.options;
		return opts.angleLines.display || opts.pointLabels.display ? scale.chart.data.labels.length : 0;
	}

	function getPointLabelFontOptions(scale) {
		var pointLabelOptions = scale.options.pointLabels;
		var fontSize = helpers.valueOrDefault(pointLabelOptions.fontSize, globalDefaults.defaultFontSize);
		var fontStyle = helpers.valueOrDefault(pointLabelOptions.fontStyle, globalDefaults.defaultFontStyle);
		var fontFamily = helpers.valueOrDefault(pointLabelOptions.fontFamily, globalDefaults.defaultFontFamily);
		var font = helpers.fontString(fontSize, fontStyle, fontFamily);

		return {
			size: fontSize,
			style: fontStyle,
			family: fontFamily,
			font: font
		};
	}

	function measureLabelSize(ctx, fontSize, label) {
		if (helpers.isArray(label)) {
			return {
				w: helpers.longestText(ctx, ctx.font, label),
				h: (label.length * fontSize) + ((label.length - 1) * 1.5 * fontSize)
			};
		}

		return {
			w: ctx.measureText(label).width,
			h: fontSize
		};
	}

	function determineLimits(angle, pos, size, min, max) {
		if (angle === min || angle === max) {
			return {
				start: pos - (size / 2),
				end: pos + (size / 2)
			};
		} else if (angle < min || angle > max) {
			return {
				start: pos - size - 5,
				end: pos
			};
		}

		return {
			start: pos,
			end: pos + size + 5
		};
	}

	/**
	 * Helper function to fit a radial linear scale with point labels
	 */
	function fitWithPointLabels(scale) {
		/*
		 * Right, this is really confusing and there is a lot of maths going on here
		 * The gist of the problem is here: https://gist.github.com/nnnick/696cc9c55f4b0beb8fe9
		 *
		 * Reaction: https://dl.dropboxusercontent.com/u/34601363/toomuchscience.gif
		 *
		 * Solution:
		 *
		 * We assume the radius of the polygon is half the size of the canvas at first
		 * at each index we check if the text overlaps.
		 *
		 * Where it does, we store that angle and that index.
		 *
		 * After finding the largest index and angle we calculate how much we need to remove
		 * from the shape radius to move the point inwards by that x.
		 *
		 * We average the left and right distances to get the maximum shape radius that can fit in the box
		 * along with labels.
		 *
		 * Once we have that, we can find the centre point for the chart, by taking the x text protrusion
		 * on each side, removing that from the size, halving it and adding the left x protrusion width.
		 *
		 * This will mean we have a shape fitted to the canvas, as large as it can be with the labels
		 * and position it in the most space efficient manner
		 *
		 * https://dl.dropboxusercontent.com/u/34601363/yeahscience.gif
		 */

		var plFont = getPointLabelFontOptions(scale);

		// Get maximum radius of the polygon. Either half the height (minus the text width) or half the width.
		// Use this to calculate the offset + change. - Make sure L/R protrusion is at least 0 to stop issues with centre points
		var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
		var furthestLimits = {
			r: scale.width,
			l: 0,
			t: scale.height,
			b: 0
		};
		var furthestAngles = {};
		var i, textSize, pointPosition;

		scale.ctx.font = plFont.font;
		scale._pointLabelSizes = [];

		var valueCount = getValueCount(scale);
		for (i = 0; i < valueCount; i++) {
			pointPosition = scale.getPointPosition(i, largestPossibleRadius);
			textSize = measureLabelSize(scale.ctx, plFont.size, scale.pointLabels[i] || '');
			scale._pointLabelSizes[i] = textSize;

			// Add quarter circle to make degree 0 mean top of circle
			var angleRadians = scale.getIndexAngle(i);
			var angle = helpers.toDegrees(angleRadians) % 360;
			var hLimits = determineLimits(angle, pointPosition.x, textSize.w, 0, 180);
			var vLimits = determineLimits(angle, pointPosition.y, textSize.h, 90, 270);

			if (hLimits.start < furthestLimits.l) {
				furthestLimits.l = hLimits.start;
				furthestAngles.l = angleRadians;
			}

			if (hLimits.end > furthestLimits.r) {
				furthestLimits.r = hLimits.end;
				furthestAngles.r = angleRadians;
			}

			if (vLimits.start < furthestLimits.t) {
				furthestLimits.t = vLimits.start;
				furthestAngles.t = angleRadians;
			}

			if (vLimits.end > furthestLimits.b) {
				furthestLimits.b = vLimits.end;
				furthestAngles.b = angleRadians;
			}
		}

		scale.setReductions(largestPossibleRadius, furthestLimits, furthestAngles);
	}

	/**
	 * Helper function to fit a radial linear scale with no point labels
	 */
	function fit(scale) {
		var largestPossibleRadius = Math.min(scale.height / 2, scale.width / 2);
		scale.drawingArea = Math.round(largestPossibleRadius);
		scale.setCenterPoint(0, 0, 0, 0);
	}

	function getTextAlignForAngle(angle) {
		if (angle === 0 || angle === 180) {
			return 'center';
		} else if (angle < 180) {
			return 'left';
		}

		return 'right';
	}

	function fillText(ctx, text, position, fontSize) {
		if (helpers.isArray(text)) {
			var y = position.y;
			var spacing = 1.5 * fontSize;

			for (var i = 0; i < text.length; ++i) {
				ctx.fillText(text[i], position.x, y);
				y += spacing;
			}
		} else {
			ctx.fillText(text, position.x, position.y);
		}
	}

	function adjustPointPositionForLabelHeight(angle, textSize, position) {
		if (angle === 90 || angle === 270) {
			position.y -= (textSize.h / 2);
		} else if (angle > 270 || angle < 90) {
			position.y -= textSize.h;
		}
	}

	function drawPointLabels(scale) {
		var ctx = scale.ctx;
		var valueOrDefault = helpers.valueOrDefault;
		var opts = scale.options;
		var angleLineOpts = opts.angleLines;
		var pointLabelOpts = opts.pointLabels;

		ctx.lineWidth = angleLineOpts.lineWidth;
		ctx.strokeStyle = angleLineOpts.color;

		var outerDistance = scale.getDistanceFromCenterForValue(opts.ticks.reverse ? scale.min : scale.max);

		// Point Label Font
		var plFont = getPointLabelFontOptions(scale);

		ctx.textBaseline = 'top';

		for (var i = getValueCount(scale) - 1; i >= 0; i--) {
			if (angleLineOpts.display) {
				var outerPosition = scale.getPointPosition(i, outerDistance);
				ctx.beginPath();
				ctx.moveTo(scale.xCenter, scale.yCenter);
				ctx.lineTo(outerPosition.x, outerPosition.y);
				ctx.stroke();
				ctx.closePath();
			}

			if (pointLabelOpts.display) {
				// Extra 3px out for some label spacing
				var pointLabelPosition = scale.getPointPosition(i, outerDistance + 5);

				// Keep this in loop since we may support array properties here
				var pointLabelFontColor = valueOrDefault(pointLabelOpts.fontColor, globalDefaults.defaultFontColor);
				ctx.font = plFont.font;
				ctx.fillStyle = pointLabelFontColor;

				var angleRadians = scale.getIndexAngle(i);
				var angle = helpers.toDegrees(angleRadians);
				ctx.textAlign = getTextAlignForAngle(angle);
				adjustPointPositionForLabelHeight(angle, scale._pointLabelSizes[i], pointLabelPosition);
				fillText(ctx, scale.pointLabels[i] || '', pointLabelPosition, plFont.size);
			}
		}
	}

	function drawRadiusLine(scale, gridLineOpts, radius, index) {
		var ctx = scale.ctx;
		ctx.strokeStyle = helpers.valueAtIndexOrDefault(gridLineOpts.color, index - 1);
		ctx.lineWidth = helpers.valueAtIndexOrDefault(gridLineOpts.lineWidth, index - 1);

		if (scale.options.gridLines.circular) {
			// Draw circular arcs between the points
			ctx.beginPath();
			ctx.arc(scale.xCenter, scale.yCenter, radius, 0, Math.PI * 2);
			ctx.closePath();
			ctx.stroke();
		} else {
			// Draw straight lines connecting each index
			var valueCount = getValueCount(scale);

			if (valueCount === 0) {
				return;
			}

			ctx.beginPath();
			var pointPosition = scale.getPointPosition(0, radius);
			ctx.moveTo(pointPosition.x, pointPosition.y);

			for (var i = 1; i < valueCount; i++) {
				pointPosition = scale.getPointPosition(i, radius);
				ctx.lineTo(pointPosition.x, pointPosition.y);
			}

			ctx.closePath();
			ctx.stroke();
		}
	}

	function numberOrZero(param) {
		return helpers.isNumber(param) ? param : 0;
	}

	var LinearRadialScale = Chart.LinearScaleBase.extend({
		setDimensions: function() {
			var me = this;
			var opts = me.options;
			var tickOpts = opts.ticks;
			// Set the unconstrained dimension before label rotation
			me.width = me.maxWidth;
			me.height = me.maxHeight;
			me.xCenter = Math.round(me.width / 2);
			me.yCenter = Math.round(me.height / 2);

			var minSize = helpers.min([me.height, me.width]);
			var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
			me.drawingArea = opts.display ? (minSize / 2) - (tickFontSize / 2 + tickOpts.backdropPaddingY) : (minSize / 2);
		},
		determineDataLimits: function() {
			var me = this;
			var chart = me.chart;
			var min = Number.POSITIVE_INFINITY;
			var max = Number.NEGATIVE_INFINITY;

			helpers.each(chart.data.datasets, function(dataset, datasetIndex) {
				if (chart.isDatasetVisible(datasetIndex)) {
					var meta = chart.getDatasetMeta(datasetIndex);

					helpers.each(dataset.data, function(rawValue, index) {
						var value = +me.getRightValue(rawValue);
						if (isNaN(value) || meta.data[index].hidden) {
							return;
						}

						min = Math.min(value, min);
						max = Math.max(value, max);
					});
				}
			});

			me.min = (min === Number.POSITIVE_INFINITY ? 0 : min);
			me.max = (max === Number.NEGATIVE_INFINITY ? 0 : max);

			// Common base implementation to handle ticks.min, ticks.max, ticks.beginAtZero
			me.handleTickRangeOptions();
		},
		getTickLimit: function() {
			var tickOpts = this.options.ticks;
			var tickFontSize = helpers.valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
			return Math.min(tickOpts.maxTicksLimit ? tickOpts.maxTicksLimit : 11, Math.ceil(this.drawingArea / (1.5 * tickFontSize)));
		},
		convertTicksToLabels: function() {
			var me = this;

			Chart.LinearScaleBase.prototype.convertTicksToLabels.call(me);

			// Point labels
			me.pointLabels = me.chart.data.labels.map(me.options.pointLabels.callback, me);
		},
		getLabelForIndex: function(index, datasetIndex) {
			return +this.getRightValue(this.chart.data.datasets[datasetIndex].data[index]);
		},
		fit: function() {
			if (this.options.pointLabels.display) {
				fitWithPointLabels(this);
			} else {
				fit(this);
			}
		},
		/**
		 * Set radius reductions and determine new radius and center point
		 * @private
		 */
		setReductions: function(largestPossibleRadius, furthestLimits, furthestAngles) {
			var me = this;
			var radiusReductionLeft = furthestLimits.l / Math.sin(furthestAngles.l);
			var radiusReductionRight = Math.max(furthestLimits.r - me.width, 0) / Math.sin(furthestAngles.r);
			var radiusReductionTop = -furthestLimits.t / Math.cos(furthestAngles.t);
			var radiusReductionBottom = -Math.max(furthestLimits.b - me.height, 0) / Math.cos(furthestAngles.b);

			radiusReductionLeft = numberOrZero(radiusReductionLeft);
			radiusReductionRight = numberOrZero(radiusReductionRight);
			radiusReductionTop = numberOrZero(radiusReductionTop);
			radiusReductionBottom = numberOrZero(radiusReductionBottom);

			me.drawingArea = Math.min(
				Math.round(largestPossibleRadius - (radiusReductionLeft + radiusReductionRight) / 2),
				Math.round(largestPossibleRadius - (radiusReductionTop + radiusReductionBottom) / 2));
			me.setCenterPoint(radiusReductionLeft, radiusReductionRight, radiusReductionTop, radiusReductionBottom);
		},
		setCenterPoint: function(leftMovement, rightMovement, topMovement, bottomMovement) {
			var me = this;
			var maxRight = me.width - rightMovement - me.drawingArea;
			var maxLeft = leftMovement + me.drawingArea;
			var maxTop = topMovement + me.drawingArea;
			var maxBottom = me.height - bottomMovement - me.drawingArea;

			me.xCenter = Math.round(((maxLeft + maxRight) / 2) + me.left);
			me.yCenter = Math.round(((maxTop + maxBottom) / 2) + me.top);
		},

		getIndexAngle: function(index) {
			var angleMultiplier = (Math.PI * 2) / getValueCount(this);
			var startAngle = this.chart.options && this.chart.options.startAngle ?
				this.chart.options.startAngle :
				0;

			var startAngleRadians = startAngle * Math.PI * 2 / 360;

			// Start from the top instead of right, so remove a quarter of the circle
			return index * angleMultiplier + startAngleRadians;
		},
		getDistanceFromCenterForValue: function(value) {
			var me = this;

			if (value === null) {
				return 0; // null always in center
			}

			// Take into account half font size + the yPadding of the top value
			var scalingFactor = me.drawingArea / (me.max - me.min);
			if (me.options.ticks.reverse) {
				return (me.max - value) * scalingFactor;
			}
			return (value - me.min) * scalingFactor;
		},
		getPointPosition: function(index, distanceFromCenter) {
			var me = this;
			var thisAngle = me.getIndexAngle(index) - (Math.PI / 2);
			return {
				x: Math.round(Math.cos(thisAngle) * distanceFromCenter) + me.xCenter,
				y: Math.round(Math.sin(thisAngle) * distanceFromCenter) + me.yCenter
			};
		},
		getPointPositionForValue: function(index, value) {
			return this.getPointPosition(index, this.getDistanceFromCenterForValue(value));
		},

		getBasePosition: function() {
			var me = this;
			var min = me.min;
			var max = me.max;

			return me.getPointPositionForValue(0,
				me.beginAtZero ? 0 :
				min < 0 && max < 0 ? max :
				min > 0 && max > 0 ? min :
				0);
		},

		draw: function() {
			var me = this;
			var opts = me.options;
			var gridLineOpts = opts.gridLines;
			var tickOpts = opts.ticks;
			var valueOrDefault = helpers.valueOrDefault;

			if (opts.display) {
				var ctx = me.ctx;
				var startAngle = this.getIndexAngle(0);

				// Tick Font
				var tickFontSize = valueOrDefault(tickOpts.fontSize, globalDefaults.defaultFontSize);
				var tickFontStyle = valueOrDefault(tickOpts.fontStyle, globalDefaults.defaultFontStyle);
				var tickFontFamily = valueOrDefault(tickOpts.fontFamily, globalDefaults.defaultFontFamily);
				var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);

				helpers.each(me.ticks, function(label, index) {
					// Don't draw a centre value (if it is minimum)
					if (index > 0 || tickOpts.reverse) {
						var yCenterOffset = me.getDistanceFromCenterForValue(me.ticksAsNumbers[index]);

						// Draw circular lines around the scale
						if (gridLineOpts.display && index !== 0) {
							drawRadiusLine(me, gridLineOpts, yCenterOffset, index);
						}

						if (tickOpts.display) {
							var tickFontColor = valueOrDefault(tickOpts.fontColor, globalDefaults.defaultFontColor);
							ctx.font = tickLabelFont;

							ctx.save();
							ctx.translate(me.xCenter, me.yCenter);
							ctx.rotate(startAngle);

							if (tickOpts.showLabelBackdrop) {
								var labelWidth = ctx.measureText(label).width;
								ctx.fillStyle = tickOpts.backdropColor;
								ctx.fillRect(
									-labelWidth / 2 - tickOpts.backdropPaddingX,
									-yCenterOffset - tickFontSize / 2 - tickOpts.backdropPaddingY,
									labelWidth + tickOpts.backdropPaddingX * 2,
									tickFontSize + tickOpts.backdropPaddingY * 2
								);
							}

							ctx.textAlign = 'center';
							ctx.textBaseline = 'middle';
							ctx.fillStyle = tickFontColor;
							ctx.fillText(label, 0, -yCenterOffset);
							ctx.restore();
						}
					}
				});

				if (opts.angleLines.display || opts.pointLabels.display) {
					drawPointLabels(me);
				}
			}
		}
	});
	Chart.scaleService.registerScaleType('radialLinear', LinearRadialScale, defaultConfig);

};

},{"25":25,"34":34,"45":45}],57:[function(require,module,exports){
/* global window: false */
'use strict';

var moment = require(6);
moment = typeof moment === 'function' ? moment : window.moment;

var defaults = require(25);
var helpers = require(45);

// Integer constants are from the ES6 spec.
var MIN_INTEGER = Number.MIN_SAFE_INTEGER || -9007199254740991;
var MAX_INTEGER = Number.MAX_SAFE_INTEGER || 9007199254740991;

var INTERVALS = {
	millisecond: {
		major: true,
		size: 1,
		steps: [1, 2, 5, 10, 20, 50, 100, 250, 500]
	},
	second: {
		major: true,
		size: 1000,
		steps: [1, 2, 5, 10, 30]
	},
	minute: {
		major: true,
		size: 60000,
		steps: [1, 2, 5, 10, 30]
	},
	hour: {
		major: true,
		size: 3600000,
		steps: [1, 2, 3, 6, 12]
	},
	day: {
		major: true,
		size: 86400000,
		steps: [1, 2, 5]
	},
	week: {
		major: false,
		size: 604800000,
		steps: [1, 2, 3, 4]
	},
	month: {
		major: true,
		size: 2.628e9,
		steps: [1, 2, 3]
	},
	quarter: {
		major: false,
		size: 7.884e9,
		steps: [1, 2, 3, 4]
	},
	year: {
		major: true,
		size: 3.154e10
	}
};

var UNITS = Object.keys(INTERVALS);

function sorter(a, b) {
	return a - b;
}

function arrayUnique(items) {
	var hash = {};
	var out = [];
	var i, ilen, item;

	for (i = 0, ilen = items.length; i < ilen; ++i) {
		item = items[i];
		if (!hash[item]) {
			hash[item] = true;
			out.push(item);
		}
	}

	return out;
}

/**
 * Returns an array of {time, pos} objects used to interpolate a specific `time` or position
 * (`pos`) on the scale, by searching entries before and after the requested value. `pos` is
 * a decimal between 0 and 1: 0 being the start of the scale (left or top) and 1 the other
 * extremity (left + width or top + height). Note that it would be more optimized to directly
 * store pre-computed pixels, but the scale dimensions are not guaranteed at the time we need
 * to create the lookup table. The table ALWAYS contains at least two items: min and max.
 *
 * @param {Number[]} timestamps - timestamps sorted from lowest to highest.
 * @param {String} distribution - If 'linear', timestamps will be spread linearly along the min
 * and max range, so basically, the table will contains only two items: {min, 0} and {max, 1}.
 * If 'series', timestamps will be positioned at the same distance from each other. In this
 * case, only timestamps that break the time linearity are registered, meaning that in the
 * best case, all timestamps are linear, the table contains only min and max.
 */
function buildLookupTable(timestamps, min, max, distribution) {
	if (distribution === 'linear' || !timestamps.length) {
		return [
			{time: min, pos: 0},
			{time: max, pos: 1}
		];
	}

	var table = [];
	var items = [min];
	var i, ilen, prev, curr, next;

	for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
		curr = timestamps[i];
		if (curr > min && curr < max) {
			items.push(curr);
		}
	}

	items.push(max);

	for (i = 0, ilen = items.length; i < ilen; ++i) {
		next = items[i + 1];
		prev = items[i - 1];
		curr = items[i];

		// only add points that breaks the scale linearity
		if (prev === undefined || next === undefined || Math.round((next + prev) / 2) !== curr) {
			table.push({time: curr, pos: i / (ilen - 1)});
		}
	}

	return table;
}

// @see adapted from http://www.anujgakhar.com/2014/03/01/binary-search-in-javascript/
function lookup(table, key, value) {
	var lo = 0;
	var hi = table.length - 1;
	var mid, i0, i1;

	while (lo >= 0 && lo <= hi) {
		mid = (lo + hi) >> 1;
		i0 = table[mid - 1] || null;
		i1 = table[mid];

		if (!i0) {
			// given value is outside table (before first item)
			return {lo: null, hi: i1};
		} else if (i1[key] < value) {
			lo = mid + 1;
		} else if (i0[key] > value) {
			hi = mid - 1;
		} else {
			return {lo: i0, hi: i1};
		}
	}

	// given value is outside table (after last item)
	return {lo: i1, hi: null};
}

/**
 * Linearly interpolates the given source `value` using the table items `skey` values and
 * returns the associated `tkey` value. For example, interpolate(table, 'time', 42, 'pos')
 * returns the position for a timestamp equal to 42. If value is out of bounds, values at
 * index [0, 1] or [n - 1, n] are used for the interpolation.
 */
function interpolate(table, skey, sval, tkey) {
	var range = lookup(table, skey, sval);

	// Note: the lookup table ALWAYS contains at least 2 items (min and max)
	var prev = !range.lo ? table[0] : !range.hi ? table[table.length - 2] : range.lo;
	var next = !range.lo ? table[1] : !range.hi ? table[table.length - 1] : range.hi;

	var span = next[skey] - prev[skey];
	var ratio = span ? (sval - prev[skey]) / span : 0;
	var offset = (next[tkey] - prev[tkey]) * ratio;

	return prev[tkey] + offset;
}

/**
 * Convert the given value to a moment object using the given time options.
 * @see http://momentjs.com/docs/#/parsing/
 */
function momentify(value, options) {
	var parser = options.parser;
	var format = options.parser || options.format;

	if (typeof parser === 'function') {
		return parser(value);
	}

	if (typeof value === 'string' && typeof format === 'string') {
		return moment(value, format);
	}

	if (!(value instanceof moment)) {
		value = moment(value);
	}

	if (value.isValid()) {
		return value;
	}

	// Labels are in an incompatible moment format and no `parser` has been provided.
	// The user might still use the deprecated `format` option to convert his inputs.
	if (typeof format === 'function') {
		return format(value);
	}

	return value;
}

function parse(input, scale) {
	if (helpers.isNullOrUndef(input)) {
		return null;
	}

	var options = scale.options.time;
	var value = momentify(scale.getRightValue(input), options);
	if (!value.isValid()) {
		return null;
	}

	if (options.round) {
		value.startOf(options.round);
	}

	return value.valueOf();
}

/**
 * Returns the number of unit to skip to be able to display up to `capacity` number of ticks
 * in `unit` for the given `min` / `max` range and respecting the interval steps constraints.
 */
function determineStepSize(min, max, unit, capacity) {
	var range = max - min;
	var interval = INTERVALS[unit];
	var milliseconds = interval.size;
	var steps = interval.steps;
	var i, ilen, factor;

	if (!steps) {
		return Math.ceil(range / ((capacity || 1) * milliseconds));
	}

	for (i = 0, ilen = steps.length; i < ilen; ++i) {
		factor = steps[i];
		if (Math.ceil(range / (milliseconds * factor)) <= capacity) {
			break;
		}
	}

	return factor;
}

function determineUnit(minUnit, min, max, capacity) {
	var ilen = UNITS.length;
	var i, interval, factor;

	for (i = UNITS.indexOf(minUnit); i < ilen - 1; ++i) {
		interval = INTERVALS[UNITS[i]];
		factor = interval.steps ? interval.steps[interval.steps.length - 1] : MAX_INTEGER;

		if (Math.ceil((max - min) / (factor * interval.size)) <= capacity) {
			return UNITS[i];
		}
	}

	return UNITS[ilen - 1];
}

function determineMajorUnit(unit) {
	for (var i = UNITS.indexOf(unit) + 1, ilen = UNITS.length; i < ilen; ++i) {
		if (INTERVALS[UNITS[i]].major) {
			return UNITS[i];
		}
	}
}

/**
 * Generates a maximum of `capacity` timestamps between min and max, rounded to the
 * `minor` unit, aligned on the `major` unit and using the given scale time `options`.
 * Important: this method can return ticks outside the min and max range, it's the
 * responsibility of the calling code to clamp values if needed.
 */
function generate(min, max, minor, major, capacity, options) {
	var timeOpts = options.time;
	var stepSize = helpers.valueOrDefault(timeOpts.stepSize, timeOpts.unitStepSize);
	var weekday = minor === 'week' ? timeOpts.isoWeekday : false;
	var majorTicksEnabled = options.ticks.major.enabled;
	var interval = INTERVALS[minor];
	var first = moment(min);
	var last = moment(max);
	var ticks = [];
	var time;

	if (!stepSize) {
		stepSize = determineStepSize(min, max, minor, capacity);
	}

	// For 'week' unit, handle the first day of week option
	if (weekday) {
		first = first.isoWeekday(weekday);
		last = last.isoWeekday(weekday);
	}

	// Align first/last ticks on unit
	first = first.startOf(weekday ? 'day' : minor);
	last = last.startOf(weekday ? 'day' : minor);

	// Make sure that the last tick include max
	if (last < max) {
		last.add(1, minor);
	}

	time = moment(first);

	if (majorTicksEnabled && major && !weekday && !timeOpts.round) {
		// Align the first tick on the previous `minor` unit aligned on the `major` unit:
		// we first aligned time on the previous `major` unit then add the number of full
		// stepSize there is between first and the previous major time.
		time.startOf(major);
		time.add(~~((first - time) / (interval.size * stepSize)) * stepSize, minor);
	}

	for (; time < last; time.add(stepSize, minor)) {
		ticks.push(+time);
	}

	ticks.push(+time);

	return ticks;
}

/**
 * Returns the right and left offsets from edges in the form of {left, right}.
 * Offsets are added when the `offset` option is true.
 */
function computeOffsets(table, ticks, min, max, options) {
	var left = 0;
	var right = 0;
	var upper, lower;

	if (options.offset && ticks.length) {
		if (!options.time.min) {
			upper = ticks.length > 1 ? ticks[1] : max;
			lower = ticks[0];
			left = (
				interpolate(table, 'time', upper, 'pos') -
				interpolate(table, 'time', lower, 'pos')
			) / 2;
		}
		if (!options.time.max) {
			upper = ticks[ticks.length - 1];
			lower = ticks.length > 1 ? ticks[ticks.length - 2] : min;
			right = (
				interpolate(table, 'time', upper, 'pos') -
				interpolate(table, 'time', lower, 'pos')
			) / 2;
		}
	}

	return {left: left, right: right};
}

function ticksFromTimestamps(values, majorUnit) {
	var ticks = [];
	var i, ilen, value, major;

	for (i = 0, ilen = values.length; i < ilen; ++i) {
		value = values[i];
		major = majorUnit ? value === +moment(value).startOf(majorUnit) : false;

		ticks.push({
			value: value,
			major: major
		});
	}

	return ticks;
}

module.exports = function(Chart) {

	var defaultConfig = {
		position: 'bottom',

		/**
		 * Data distribution along the scale:
		 * - 'linear': data are spread according to their time (distances can vary),
		 * - 'series': data are spread at the same distance from each other.
		 * @see https://github.com/chartjs/Chart.js/pull/4507
		 * @since 2.7.0
		 */
		distribution: 'linear',

		/**
		 * Scale boundary strategy (bypassed by min/max time options)
		 * - `data`: make sure data are fully visible, ticks outside are removed
		 * - `ticks`: make sure ticks are fully visible, data outside are truncated
		 * @see https://github.com/chartjs/Chart.js/pull/4556
		 * @since 2.7.0
		 */
		bounds: 'data',

		time: {
			parser: false, // false == a pattern string from http://momentjs.com/docs/#/parsing/string-format/ or a custom callback that converts its argument to a moment
			format: false, // DEPRECATED false == date objects, moment object, callback or a pattern string from http://momentjs.com/docs/#/parsing/string-format/
			unit: false, // false == automatic or override with week, month, year, etc.
			round: false, // none, or override with week, month, year, etc.
			displayFormat: false, // DEPRECATED
			isoWeekday: false, // override week start day - see http://momentjs.com/docs/#/get-set/iso-weekday/
			minUnit: 'millisecond',

			// defaults to unit's corresponding unitFormat below or override using pattern string from http://momentjs.com/docs/#/displaying/format/
			displayFormats: {
				millisecond: 'h:mm:ss.SSS a', // 11:20:01.123 AM,
				second: 'h:mm:ss a', // 11:20:01 AM
				minute: 'h:mm a', // 11:20 AM
				hour: 'hA', // 5PM
				day: 'MMM D', // Sep 4
				week: 'll', // Week 46, or maybe "[W]WW - YYYY" ?
				month: 'MMM YYYY', // Sept 2015
				quarter: '[Q]Q - YYYY', // Q3
				year: 'YYYY' // 2015
			},
		},
		ticks: {
			autoSkip: false,

			/**
			 * Ticks generation input values:
			 * - 'auto': generates "optimal" ticks based on scale size and time options.
			 * - 'data': generates ticks from data (including labels from data {t|x|y} objects).
			 * - 'labels': generates ticks from user given `data.labels` values ONLY.
			 * @see https://github.com/chartjs/Chart.js/pull/4507
			 * @since 2.7.0
			 */
			source: 'auto',

			major: {
				enabled: false
			}
		}
	};

	var TimeScale = Chart.Scale.extend({
		initialize: function() {
			if (!moment) {
				throw new Error('Chart.js - Moment.js could not be found! You must include it before Chart.js to use the time scale. Download at https://momentjs.com');
			}

			this.mergeTicksOptions();

			Chart.Scale.prototype.initialize.call(this);
		},

		update: function() {
			var me = this;
			var options = me.options;

			// DEPRECATIONS: output a message only one time per update
			if (options.time && options.time.format) {
				console.warn('options.time.format is deprecated and replaced by options.time.parser.');
			}

			return Chart.Scale.prototype.update.apply(me, arguments);
		},

		/**
		 * Allows data to be referenced via 't' attribute
		 */
		getRightValue: function(rawValue) {
			if (rawValue && rawValue.t !== undefined) {
				rawValue = rawValue.t;
			}
			return Chart.Scale.prototype.getRightValue.call(this, rawValue);
		},

		determineDataLimits: function() {
			var me = this;
			var chart = me.chart;
			var timeOpts = me.options.time;
			var min = parse(timeOpts.min, me) || MAX_INTEGER;
			var max = parse(timeOpts.max, me) || MIN_INTEGER;
			var timestamps = [];
			var datasets = [];
			var labels = [];
			var i, j, ilen, jlen, data, timestamp;

			// Convert labels to timestamps
			for (i = 0, ilen = chart.data.labels.length; i < ilen; ++i) {
				labels.push(parse(chart.data.labels[i], me));
			}

			// Convert data to timestamps
			for (i = 0, ilen = (chart.data.datasets || []).length; i < ilen; ++i) {
				if (chart.isDatasetVisible(i)) {
					data = chart.data.datasets[i].data;

					// Let's consider that all data have the same format.
					if (helpers.isObject(data[0])) {
						datasets[i] = [];

						for (j = 0, jlen = data.length; j < jlen; ++j) {
							timestamp = parse(data[j], me);
							timestamps.push(timestamp);
							datasets[i][j] = timestamp;
						}
					} else {
						timestamps.push.apply(timestamps, labels);
						datasets[i] = labels.slice(0);
					}
				} else {
					datasets[i] = [];
				}
			}

			if (labels.length) {
				// Sort labels **after** data have been converted
				labels = arrayUnique(labels).sort(sorter);
				min = Math.min(min, labels[0]);
				max = Math.max(max, labels[labels.length - 1]);
			}

			if (timestamps.length) {
				timestamps = arrayUnique(timestamps).sort(sorter);
				min = Math.min(min, timestamps[0]);
				max = Math.max(max, timestamps[timestamps.length - 1]);
			}

			// In case there is no valid min/max, let's use today limits
			min = min === MAX_INTEGER ? +moment().startOf('day') : min;
			max = max === MIN_INTEGER ? +moment().endOf('day') + 1 : max;

			// Make sure that max is strictly higher than min (required by the lookup table)
			me.min = Math.min(min, max);
			me.max = Math.max(min + 1, max);

			// PRIVATE
			me._horizontal = me.isHorizontal();
			me._table = [];
			me._timestamps = {
				data: timestamps,
				datasets: datasets,
				labels: labels
			};
		},

		buildTicks: function() {
			var me = this;
			var min = me.min;
			var max = me.max;
			var options = me.options;
			var timeOpts = options.time;
			var formats = timeOpts.displayFormats;
			var capacity = me.getLabelCapacity(min);
			var unit = timeOpts.unit || determineUnit(timeOpts.minUnit, min, max, capacity);
			var majorUnit = determineMajorUnit(unit);
			var timestamps = [];
			var ticks = [];
			var i, ilen, timestamp;

			switch (options.ticks.source) {
			case 'data':
				timestamps = me._timestamps.data;
				break;
			case 'labels':
				timestamps = me._timestamps.labels;
				break;
			case 'auto':
			default:
				timestamps = generate(min, max, unit, majorUnit, capacity, options);
			}

			if (options.bounds === 'ticks' && timestamps.length) {
				min = timestamps[0];
				max = timestamps[timestamps.length - 1];
			}

			// Enforce limits with user min/max options
			min = parse(timeOpts.min, me) || min;
			max = parse(timeOpts.max, me) || max;

			// Remove ticks outside the min/max range
			for (i = 0, ilen = timestamps.length; i < ilen; ++i) {
				timestamp = timestamps[i];
				if (timestamp >= min && timestamp <= max) {
					ticks.push(timestamp);
				}
			}

			me.min = min;
			me.max = max;

			// PRIVATE
			me._unit = unit;
			me._majorUnit = majorUnit;
			me._minorFormat = formats[unit];
			me._majorFormat = formats[majorUnit];
			me._table = buildLookupTable(me._timestamps.data, min, max, options.distribution);
			me._offsets = computeOffsets(me._table, ticks, min, max, options);

			return ticksFromTimestamps(ticks, majorUnit);
		},

		getLabelForIndex: function(index, datasetIndex) {
			var me = this;
			var data = me.chart.data;
			var timeOpts = me.options.time;
			var label = data.labels && index < data.labels.length ? data.labels[index] : '';
			var value = data.datasets[datasetIndex].data[index];

			if (helpers.isObject(value)) {
				label = me.getRightValue(value);
			}
			if (timeOpts.tooltipFormat) {
				label = momentify(label, timeOpts).format(timeOpts.tooltipFormat);
			}

			return label;
		},

		/**
		 * Function to format an individual tick mark
		 * @private
		 */
		tickFormatFunction: function(tick, index, ticks) {
			var me = this;
			var options = me.options;
			var time = tick.valueOf();
			var majorUnit = me._majorUnit;
			var majorFormat = me._majorFormat;
			var majorTime = tick.clone().startOf(me._majorUnit).valueOf();
			var majorTickOpts = options.ticks.major;
			var major = majorTickOpts.enabled && majorUnit && majorFormat && time === majorTime;
			var label = tick.format(major ? majorFormat : me._minorFormat);
			var tickOpts = major ? majorTickOpts : options.ticks.minor;
			var formatter = helpers.valueOrDefault(tickOpts.callback, tickOpts.userCallback);

			return formatter ? formatter(label, index, ticks) : label;
		},

		convertTicksToLabels: function(ticks) {
			var labels = [];
			var i, ilen;

			for (i = 0, ilen = ticks.length; i < ilen; ++i) {
				labels.push(this.tickFormatFunction(moment(ticks[i].value), i, ticks));
			}

			return labels;
		},

		/**
		 * @private
		 */
		getPixelForOffset: function(time) {
			var me = this;
			var size = me._horizontal ? me.width : me.height;
			var start = me._horizontal ? me.left : me.top;
			var pos = interpolate(me._table, 'time', time, 'pos');

			return start + size * (me._offsets.left + pos) / (me._offsets.left + 1 + me._offsets.right);
		},

		getPixelForValue: function(value, index, datasetIndex) {
			var me = this;
			var time = null;

			if (index !== undefined && datasetIndex !== undefined) {
				time = me._timestamps.datasets[datasetIndex][index];
			}

			if (time === null) {
				time = parse(value, me);
			}

			if (time !== null) {
				return me.getPixelForOffset(time);
			}
		},

		getPixelForTick: function(index) {
			var ticks = this.getTicks();
			return index >= 0 && index < ticks.length ?
				this.getPixelForOffset(ticks[index].value) :
				null;
		},

		getValueForPixel: function(pixel) {
			var me = this;
			var size = me._horizontal ? me.width : me.height;
			var start = me._horizontal ? me.left : me.top;
			var pos = (size ? (pixel - start) / size : 0) * (me._offsets.left + 1 + me._offsets.left) - me._offsets.right;
			var time = interpolate(me._table, 'pos', pos, 'time');

			return moment(time);
		},

		/**
		 * Crude approximation of what the label width might be
		 * @private
		 */
		getLabelWidth: function(label) {
			var me = this;
			var ticksOpts = me.options.ticks;
			var tickLabelWidth = me.ctx.measureText(label).width;
			var angle = helpers.toRadians(ticksOpts.maxRotation);
			var cosRotation = Math.cos(angle);
			var sinRotation = Math.sin(angle);
			var tickFontSize = helpers.valueOrDefault(ticksOpts.fontSize, defaults.global.defaultFontSize);

			return (tickLabelWidth * cosRotation) + (tickFontSize * sinRotation);
		},

		/**
		 * @private
		 */
		getLabelCapacity: function(exampleTime) {
			var me = this;

			me._minorFormat = me.options.time.displayFormats.millisecond;	// Pick the longest format for guestimation

			var exampleLabel = me.tickFormatFunction(moment(exampleTime), 0, []);
			var tickLabelWidth = me.getLabelWidth(exampleLabel);
			var innerWidth = me.isHorizontal() ? me.width : me.height;

			return Math.floor(innerWidth / tickLabelWidth);
		}
	});

	Chart.scaleService.registerScaleType('time', TimeScale, defaultConfig);
};

},{"25":25,"45":45,"6":6}]},{},[7])(7)
});
function StorageLocationViewModel()
{
    this.el = '#storage-options';
    this.data = {
        storage_driver: 'LocalFilesystemSource'
    };
}
/*!
 * typeahead.js 0.11.1
 * https://github.com/twitter/typeahead.js
 * Copyright 2013-2015 Twitter, Inc. and other contributors; Licensed MIT
 */

(function(root, factory) {
    if (typeof define === "function" && define.amd) {
        define("bloodhound", [ "jquery" ], function(a0) {
            return root["Bloodhound"] = factory(a0);
        });
    } else if (typeof exports === "object") {
        module.exports = factory(require("jquery"));
    } else {
        root["Bloodhound"] = factory(jQuery);
    }
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            mixin: $.extend,
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            for (i = 0; i < len; i++) {
                if ((key = LOCAL_STORAGE.key(i)).match(keyMatcher)) {
                    keys.push(key.replace(keyMatcher, ""));
                }
            }
            return keys;
        }
    }();
    var Transport = function() {
        "use strict";
        var pendingRequestsCount = 0, pendingRequests = {}, maxPendingRequests = 6, sharedCache = new LruCache(10);
        function Transport(o) {
            o = o || {};
            this.cancelled = false;
            this.lastReq = null;
            this._send = o.transport;
            this._get = o.limiter ? o.limiter(this._get) : this._get;
            this._cache = o.cache === false ? new LruCache(0) : sharedCache;
        }
        Transport.setMaxPendingRequests = function setMaxPendingRequests(num) {
            maxPendingRequests = num;
        };
        Transport.resetCache = function resetCache() {
            sharedCache.reset();
        };
        _.mixin(Transport.prototype, {
            _fingerprint: function fingerprint(o) {
                o = o || {};
                return o.url + o.type + $.param(o.data || {});
            },
            _get: function(o, cb) {
                var that = this, fingerprint, jqXhr;
                fingerprint = this._fingerprint(o);
                if (this.cancelled || fingerprint !== this.lastReq) {
                    return;
                }
                if (jqXhr = pendingRequests[fingerprint]) {
                    jqXhr.done(done).fail(fail);
                } else if (pendingRequestsCount < maxPendingRequests) {
                    pendingRequestsCount++;
                    pendingRequests[fingerprint] = this._send(o).done(done).fail(fail).always(always);
                } else {
                    this.onDeckRequestArgs = [].slice.call(arguments, 0);
                }
                function done(resp) {
                    cb(null, resp);
                    that._cache.set(fingerprint, resp);
                }
                function fail() {
                    cb(true);
                }
                function always() {
                    pendingRequestsCount--;
                    delete pendingRequests[fingerprint];
                    if (that.onDeckRequestArgs) {
                        that._get.apply(that, that.onDeckRequestArgs);
                        that.onDeckRequestArgs = null;
                    }
                }
            },
            get: function(o, cb) {
                var resp, fingerprint;
                cb = cb || $.noop;
                o = _.isString(o) ? {
                    url: o
                } : o || {};
                fingerprint = this._fingerprint(o);
                this.cancelled = false;
                this.lastReq = fingerprint;
                if (resp = this._cache.get(fingerprint)) {
                    cb(null, resp);
                } else {
                    this._get(o, cb);
                }
            },
            cancel: function() {
                this.cancelled = true;
            }
        });
        return Transport;
    }();
    var SearchIndex = window.SearchIndex = function() {
        "use strict";
        var CHILDREN = "c", IDS = "i";
        function SearchIndex(o) {
            o = o || {};
            if (!o.datumTokenizer || !o.queryTokenizer) {
                $.error("datumTokenizer and queryTokenizer are both required");
            }
            this.identify = o.identify || _.stringify;
            this.datumTokenizer = o.datumTokenizer;
            this.queryTokenizer = o.queryTokenizer;
            this.reset();
        }
        _.mixin(SearchIndex.prototype, {
            bootstrap: function bootstrap(o) {
                this.datums = o.datums;
                this.trie = o.trie;
            },
            add: function(data) {
                var that = this;
                data = _.isArray(data) ? data : [ data ];
                _.each(data, function(datum) {
                    var id, tokens;
                    that.datums[id = that.identify(datum)] = datum;
                    tokens = normalizeTokens(that.datumTokenizer(datum));
                    _.each(tokens, function(token) {
                        var node, chars, ch;
                        node = that.trie;
                        chars = token.split("");
                        while (ch = chars.shift()) {
                            node = node[CHILDREN][ch] || (node[CHILDREN][ch] = newNode());
                            node[IDS].push(id);
                        }
                    });
                });
            },
            get: function get(ids) {
                var that = this;
                return _.map(ids, function(id) {
                    return that.datums[id];
                });
            },
            search: function search(query) {
                var that = this, tokens, matches;
                tokens = normalizeTokens(this.queryTokenizer(query));
                _.each(tokens, function(token) {
                    var node, chars, ch, ids;
                    if (matches && matches.length === 0) {
                        return false;
                    }
                    node = that.trie;
                    chars = token.split("");
                    while (node && (ch = chars.shift())) {
                        node = node[CHILDREN][ch];
                    }
                    if (node && chars.length === 0) {
                        ids = node[IDS].slice(0);
                        matches = matches ? getIntersection(matches, ids) : ids;
                    } else {
                        matches = [];
                        return false;
                    }
                });
                return matches ? _.map(unique(matches), function(id) {
                    return that.datums[id];
                }) : [];
            },
            all: function all() {
                var values = [];
                for (var key in this.datums) {
                    values.push(this.datums[key]);
                }
                return values;
            },
            reset: function reset() {
                this.datums = {};
                this.trie = newNode();
            },
            serialize: function serialize() {
                return {
                    datums: this.datums,
                    trie: this.trie
                };
            }
        });
        return SearchIndex;
        function normalizeTokens(tokens) {
            tokens = _.filter(tokens, function(token) {
                return !!token;
            });
            tokens = _.map(tokens, function(token) {
                return token.toLowerCase();
            });
            return tokens;
        }
        function newNode() {
            var node = {};
            node[IDS] = [];
            node[CHILDREN] = {};
            return node;
        }
        function unique(array) {
            var seen = {}, uniques = [];
            for (var i = 0, len = array.length; i < len; i++) {
                if (!seen[array[i]]) {
                    seen[array[i]] = true;
                    uniques.push(array[i]);
                }
            }
            return uniques;
        }
        function getIntersection(arrayA, arrayB) {
            var ai = 0, bi = 0, intersection = [];
            arrayA = arrayA.sort();
            arrayB = arrayB.sort();
            var lenArrayA = arrayA.length, lenArrayB = arrayB.length;
            while (ai < lenArrayA && bi < lenArrayB) {
                if (arrayA[ai] < arrayB[bi]) {
                    ai++;
                } else if (arrayA[ai] > arrayB[bi]) {
                    bi++;
                } else {
                    intersection.push(arrayA[ai]);
                    ai++;
                    bi++;
                }
            }
            return intersection;
        }
    }();
    var Prefetch = function() {
        "use strict";
        var keys;
        keys = {
            data: "data",
            protocol: "protocol",
            thumbprint: "thumbprint"
        };
        function Prefetch(o) {
            this.url = o.url;
            this.ttl = o.ttl;
            this.cache = o.cache;
            this.prepare = o.prepare;
            this.transform = o.transform;
            this.transport = o.transport;
            this.thumbprint = o.thumbprint;
            this.storage = new PersistentStorage(o.cacheKey);
        }
        _.mixin(Prefetch.prototype, {
            _settings: function settings() {
                return {
                    url: this.url,
                    type: "GET",
                    dataType: "json"
                };
            },
            store: function store(data) {
                if (!this.cache) {
                    return;
                }
                this.storage.set(keys.data, data, this.ttl);
                this.storage.set(keys.protocol, location.protocol, this.ttl);
                this.storage.set(keys.thumbprint, this.thumbprint, this.ttl);
            },
            fromCache: function fromCache() {
                var stored = {}, isExpired;
                if (!this.cache) {
                    return null;
                }
                stored.data = this.storage.get(keys.data);
                stored.protocol = this.storage.get(keys.protocol);
                stored.thumbprint = this.storage.get(keys.thumbprint);
                isExpired = stored.thumbprint !== this.thumbprint || stored.protocol !== location.protocol;
                return stored.data && !isExpired ? stored.data : null;
            },
            fromNetwork: function(cb) {
                var that = this, settings;
                if (!cb) {
                    return;
                }
                settings = this.prepare(this._settings());
                this.transport(settings).fail(onError).done(onResponse);
                function onError() {
                    cb(true);
                }
                function onResponse(resp) {
                    cb(null, that.transform(resp));
                }
            },
            clear: function clear() {
                this.storage.clear();
                return this;
            }
        });
        return Prefetch;
    }();
    var Remote = function() {
        "use strict";
        function Remote(o) {
            this.url = o.url;
            this.prepare = o.prepare;
            this.transform = o.transform;
            this.transport = new Transport({
                cache: o.cache,
                limiter: o.limiter,
                transport: o.transport
            });
        }
        _.mixin(Remote.prototype, {
            _settings: function settings() {
                return {
                    url: this.url,
                    type: "GET",
                    dataType: "json"
                };
            },
            get: function get(query, cb) {
                var that = this, settings;
                if (!cb) {
                    return;
                }
                query = query || "";
                settings = this.prepare(query, this._settings());
                return this.transport.get(settings, onResponse);
                function onResponse(err, resp) {
                    err ? cb([]) : cb(that.transform(resp));
                }
            },
            cancelLastRequest: function cancelLastRequest() {
                this.transport.cancel();
            }
        });
        return Remote;
    }();
    var oParser = function() {
        "use strict";
        return function parse(o) {
            var defaults, sorter;
            defaults = {
                initialize: true,
                identify: _.stringify,
                datumTokenizer: null,
                queryTokenizer: null,
                sufficient: 5,
                sorter: null,
                local: [],
                prefetch: null,
                remote: null
            };
            o = _.mixin(defaults, o || {});
            !o.datumTokenizer && $.error("datumTokenizer is required");
            !o.queryTokenizer && $.error("queryTokenizer is required");
            sorter = o.sorter;
            o.sorter = sorter ? function(x) {
                return x.sort(sorter);
            } : _.identity;
            o.local = _.isFunction(o.local) ? o.local() : o.local;
            o.prefetch = parsePrefetch(o.prefetch);
            o.remote = parseRemote(o.remote);
            return o;
        };
        function parsePrefetch(o) {
            var defaults;
            if (!o) {
                return null;
            }
            defaults = {
                url: null,
                ttl: 24 * 60 * 60 * 1e3,
                cache: true,
                cacheKey: null,
                thumbprint: "",
                prepare: _.identity,
                transform: _.identity,
                transport: null
            };
            o = _.isString(o) ? {
                url: o
            } : o;
            o = _.mixin(defaults, o);
            !o.url && $.error("prefetch requires url to be set");
            o.transform = o.filter || o.transform;
            o.cacheKey = o.cacheKey || o.url;
            o.thumbprint = VERSION + o.thumbprint;
            o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax;
            return o;
        }
        function parseRemote(o) {
            var defaults;
            if (!o) {
                return;
            }
            defaults = {
                url: null,
                cache: true,
                prepare: null,
                replace: null,
                wildcard: null,
                limiter: null,
                rateLimitBy: "debounce",
                rateLimitWait: 300,
                transform: _.identity,
                transport: null
            };
            o = _.isString(o) ? {
                url: o
            } : o;
            o = _.mixin(defaults, o);
            !o.url && $.error("remote requires url to be set");
            o.transform = o.filter || o.transform;
            o.prepare = toRemotePrepare(o);
            o.limiter = toLimiter(o);
            o.transport = o.transport ? callbackToDeferred(o.transport) : $.ajax;
            delete o.replace;
            delete o.wildcard;
            delete o.rateLimitBy;
            delete o.rateLimitWait;
            return o;
        }
        function toRemotePrepare(o) {
            var prepare, replace, wildcard;
            prepare = o.prepare;
            replace = o.replace;
            wildcard = o.wildcard;
            if (prepare) {
                return prepare;
            }
            if (replace) {
                prepare = prepareByReplace;
            } else if (o.wildcard) {
                prepare = prepareByWildcard;
            } else {
                prepare = idenityPrepare;
            }
            return prepare;
            function prepareByReplace(query, settings) {
                settings.url = replace(settings.url, query);
                return settings;
            }
            function prepareByWildcard(query, settings) {
                settings.url = settings.url.replace(wildcard, encodeURIComponent(query));
                return settings;
            }
            function idenityPrepare(query, settings) {
                return settings;
            }
        }
        function toLimiter(o) {
            var limiter, method, wait;
            limiter = o.limiter;
            method = o.rateLimitBy;
            wait = o.rateLimitWait;
            if (!limiter) {
                limiter = /^throttle$/i.test(method) ? throttle(wait) : debounce(wait);
            }
            return limiter;
            function debounce(wait) {
                return function debounce(fn) {
                    return _.debounce(fn, wait);
                };
            }
            function throttle(wait) {
                return function throttle(fn) {
                    return _.throttle(fn, wait);
                };
            }
        }
        function callbackToDeferred(fn) {
            return function wrapper(o) {
                var deferred = $.Deferred();
                fn(o, onSuccess, onError);
                return deferred;
                function onSuccess(resp) {
                    _.defer(function() {
                        deferred.resolve(resp);
                    });
                }
                function onError(err) {
                    _.defer(function() {
                        deferred.reject(err);
                    });
                }
            };
        }
    }();
    var Bloodhound = function() {
        "use strict";
        var old;
        old = window && window.Bloodhound;
        function Bloodhound(o) {
            o = oParser(o);
            this.sorter = o.sorter;
            this.identify = o.identify;
            this.sufficient = o.sufficient;
            this.local = o.local;
            this.remote = o.remote ? new Remote(o.remote) : null;
            this.prefetch = o.prefetch ? new Prefetch(o.prefetch) : null;
            this.index = new SearchIndex({
                identify: this.identify,
                datumTokenizer: o.datumTokenizer,
                queryTokenizer: o.queryTokenizer
            });
            o.initialize !== false && this.initialize();
        }
        Bloodhound.noConflict = function noConflict() {
            window && (window.Bloodhound = old);
            return Bloodhound;
        };
        Bloodhound.tokenizers = tokenizers;
        _.mixin(Bloodhound.prototype, {
            __ttAdapter: function ttAdapter() {
                var that = this;
                return this.remote ? withAsync : withoutAsync;
                function withAsync(query, sync, async) {
                    return that.search(query, sync, async);
                }
                function withoutAsync(query, sync) {
                    return that.search(query, sync);
                }
            },
            _loadPrefetch: function loadPrefetch() {
                var that = this, deferred, serialized;
                deferred = $.Deferred();
                if (!this.prefetch) {
                    deferred.resolve();
                } else if (serialized = this.prefetch.fromCache()) {
                    this.index.bootstrap(serialized);
                    deferred.resolve();
                } else {
                    this.prefetch.fromNetwork(done);
                }
                return deferred.promise();
                function done(err, data) {
                    if (err) {
                        return deferred.reject();
                    }
                    that.add(data);
                    that.prefetch.store(that.index.serialize());
                    deferred.resolve();
                }
            },
            _initialize: function initialize() {
                var that = this, deferred;
                this.clear();
                (this.initPromise = this._loadPrefetch()).done(addLocalToIndex);
                return this.initPromise;
                function addLocalToIndex() {
                    that.add(that.local);
                }
            },
            initialize: function initialize(force) {
                return !this.initPromise || force ? this._initialize() : this.initPromise;
            },
            add: function add(data) {
                this.index.add(data);
                return this;
            },
            get: function get(ids) {
                ids = _.isArray(ids) ? ids : [].slice.call(arguments);
                return this.index.get(ids);
            },
            search: function search(query, sync, async) {
                var that = this, local;
                local = this.sorter(this.index.search(query));
                sync(this.remote ? local.slice() : local);
                if (this.remote && local.length < this.sufficient) {
                    this.remote.get(query, processRemote);
                } else if (this.remote) {
                    this.remote.cancelLastRequest();
                }
                return this;
                function processRemote(remote) {
                    var nonDuplicates = [];
                    _.each(remote, function(r) {
                        !_.some(local, function(l) {
                            return that.identify(r) === that.identify(l);
                        }) && nonDuplicates.push(r);
                    });
                    async && async(nonDuplicates);
                }
            },
            all: function all() {
                return this.index.all();
            },
            clear: function clear() {
                this.index.reset();
                return this;
            },
            clearPrefetchCache: function clearPrefetchCache() {
                this.prefetch && this.prefetch.clear();
                return this;
            },
            clearRemoteCache: function clearRemoteCache() {
                Transport.resetCache();
                return this;
            },
            ttAdapter: function ttAdapter() {
                return this.__ttAdapter();
            }
        });
        return Bloodhound;
    }();
    return Bloodhound;
});

(function(root, factory) {
    if (typeof define === "function" && define.amd) {
        define("typeahead.js", [ "jquery" ], function(a0) {
            return factory(a0);
        });
    } else if (typeof exports === "object") {
        module.exports = factory(require("jquery"));
    } else {
        factory(jQuery);
    }
})(this, function($) {
    var _ = function() {
        "use strict";
        return {
            isMsie: function() {
                return /(msie|trident)/i.test(navigator.userAgent) ? navigator.userAgent.match(/(msie |rv:)(\d+(.\d+)?)/i)[2] : false;
            },
            isBlankString: function(str) {
                return !str || /^\s*$/.test(str);
            },
            escapeRegExChars: function(str) {
                return str.replace(/[\-\[\]\/\{\}\(\)\*\+\?\.\\\^\$\|]/g, "\\$&");
            },
            isString: function(obj) {
                return typeof obj === "string";
            },
            isNumber: function(obj) {
                return typeof obj === "number";
            },
            isArray: $.isArray,
            isFunction: $.isFunction,
            isObject: $.isPlainObject,
            isUndefined: function(obj) {
                return typeof obj === "undefined";
            },
            isElement: function(obj) {
                return !!(obj && obj.nodeType === 1);
            },
            isJQuery: function(obj) {
                return obj instanceof $;
            },
            toStr: function toStr(s) {
                return _.isUndefined(s) || s === null ? "" : s + "";
            },
            bind: $.proxy,
            each: function(collection, cb) {
                $.each(collection, reverseArgs);
                function reverseArgs(index, value) {
                    return cb(value, index);
                }
            },
            map: $.map,
            filter: $.grep,
            every: function(obj, test) {
                var result = true;
                if (!obj) {
                    return result;
                }
                $.each(obj, function(key, val) {
                    if (!(result = test.call(null, val, key, obj))) {
                        return false;
                    }
                });
                return !!result;
            },
            some: function(obj, test) {
                var result = false;
                if (!obj) {
                    return result;
                }
                $.each(obj, function(key, val) {
                    if (result = test.call(null, val, key, obj)) {
                        return false;
                    }
                });
                return !!result;
            },
            mixin: $.extend,
            identity: function(x) {
                return x;
            },
            clone: function(obj) {
                return $.extend(true, {}, obj);
            },
            getIdGenerator: function() {
                var counter = 0;
                return function() {
                    return counter++;
                };
            },
            templatify: function templatify(obj) {
                return $.isFunction(obj) ? obj : template;
                function template() {
                    return String(obj);
                }
            },
            defer: function(fn) {
                setTimeout(fn, 0);
            },
            debounce: function(func, wait, immediate) {
                var timeout, result;
                return function() {
                    var context = this, args = arguments, later, callNow;
                    later = function() {
                        timeout = null;
                        if (!immediate) {
                            result = func.apply(context, args);
                        }
                    };
                    callNow = immediate && !timeout;
                    clearTimeout(timeout);
                    timeout = setTimeout(later, wait);
                    if (callNow) {
                        result = func.apply(context, args);
                    }
                    return result;
                };
            },
            throttle: function(func, wait) {
                var context, args, timeout, result, previous, later;
                previous = 0;
                later = function() {
                    previous = new Date();
                    timeout = null;
                    result = func.apply(context, args);
                };
                return function() {
                    var now = new Date(), remaining = wait - (now - previous);
                    context = this;
                    args = arguments;
                    if (remaining <= 0) {
                        clearTimeout(timeout);
                        timeout = null;
                        previous = now;
                        result = func.apply(context, args);
                    } else if (!timeout) {
                        timeout = setTimeout(later, remaining);
                    }
                    return result;
                };
            },
            stringify: function(val) {
                return _.isString(val) ? val : JSON.stringify(val);
            },
            noop: function() {}
        };
    }();
    var WWW = function() {
        "use strict";
        var defaultClassNames = {
            wrapper: "twitter-typeahead",
            input: "tt-input",
            hint: "tt-hint",
            menu: "tt-menu",
            dataset: "tt-dataset",
            suggestion: "tt-suggestion",
            selectable: "tt-selectable",
            empty: "tt-empty",
            open: "tt-open",
            cursor: "tt-cursor",
            highlight: "tt-highlight"
        };
        return build;
        function build(o) {
            var www, classes;
            classes = _.mixin({}, defaultClassNames, o);
            www = {
                css: buildCss(),
                classes: classes,
                html: buildHtml(classes),
                selectors: buildSelectors(classes)
            };
            return {
                css: www.css,
                html: www.html,
                classes: www.classes,
                selectors: www.selectors,
                mixin: function(o) {
                    _.mixin(o, www);
                }
            };
        }
        function buildHtml(c) {
            return {
                wrapper: '<span class="' + c.wrapper + '"></span>',
                menu: '<div class="' + c.menu + '"></div>'
            };
        }
        function buildSelectors(classes) {
            var selectors = {};
            _.each(classes, function(v, k) {
                selectors[k] = "." + v;
            });
            return selectors;
        }
        function buildCss() {
            var css = {
                wrapper: {
                    position: "relative",
                    display: "inline-block"
                },
                hint: {
                    position: "absolute",
                    top: "0",
                    left: "0",
                    borderColor: "transparent",
                    boxShadow: "none",
                    opacity: "1"
                },
                input: {
                    position: "relative",
                    verticalAlign: "top",
                    backgroundColor: "transparent"
                },
                inputWithNoHint: {
                    position: "relative",
                    verticalAlign: "top"
                },
                menu: {
                    position: "absolute",
                    top: "100%",
                    left: "0",
                    zIndex: "100",
                    display: "none"
                },
                ltr: {
                    left: "0",
                    right: "auto"
                },
                rtl: {
                    left: "auto",
                    right: " 0"
                }
            };
            if (_.isMsie()) {
                _.mixin(css.input, {
                    backgroundImage: "url(data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)"
                });
            }
            return css;
        }
    }();
    var EventBus = function() {
        "use strict";
        var namespace, deprecationMap;
        namespace = "typeahead:";
        deprecationMap = {
            render: "rendered",
            cursorchange: "cursorchanged",
            select: "selected",
            autocomplete: "autocompleted"
        };
        function EventBus(o) {
            if (!o || !o.el) {
                $.error("EventBus initialized without el");
            }
            this.$el = $(o.el);
        }
        _.mixin(EventBus.prototype, {
            _trigger: function(type, args) {
                var $e;
                $e = $.Event(namespace + type);
                (args = args || []).unshift($e);
                this.$el.trigger.apply(this.$el, args);
                return $e;
            },
            before: function(type) {
                var args, $e;
                args = [].slice.call(arguments, 1);
                $e = this._trigger("before" + type, args);
                return $e.isDefaultPrevented();
            },
            trigger: function(type) {
                var deprecatedType;
                this._trigger(type, [].slice.call(arguments, 1));
                if (deprecatedType = deprecationMap[type]) {
                    this._trigger(deprecatedType, [].slice.call(arguments, 1));
                }
            }
        });
        return EventBus;
    }();
    var EventEmitter = function() {
        "use strict";
        var splitter = /\s+/, nextTick = getNextTick();
        return {
            onSync: onSync,
            onAsync: onAsync,
            off: off,
            trigger: trigger
        };
        function on(method, types, cb, context) {
            var type;
            if (!cb) {
                return this;
            }
            types = types.split(splitter);
            cb = context ? bindContext(cb, context) : cb;
            this._callbacks = this._callbacks || {};
            while (type = types.shift()) {
                this._callbacks[type] = this._callbacks[type] || {
                    sync: [],
                    async: []
                };
                this._callbacks[type][method].push(cb);
            }
            return this;
        }
        function onAsync(types, cb, context) {
            return on.call(this, "async", types, cb, context);
        }
        function onSync(types, cb, context) {
            return on.call(this, "sync", types, cb, context);
        }
        function off(types) {
            var type;
            if (!this._callbacks) {
                return this;
            }
            types = types.split(splitter);
            while (type = types.shift()) {
                delete this._callbacks[type];
            }
            return this;
        }
        function trigger(types) {
            var type, callbacks, args, syncFlush, asyncFlush;
            if (!this._callbacks) {
                return this;
            }
            types = types.split(splitter);
            args = [].slice.call(arguments, 1);
            while ((type = types.shift()) && (callbacks = this._callbacks[type])) {
                syncFlush = getFlush(callbacks.sync, this, [ type ].concat(args));
                asyncFlush = getFlush(callbacks.async, this, [ type ].concat(args));
                syncFlush() && nextTick(asyncFlush);
            }
            return this;
        }
        function getFlush(callbacks, context, args) {
            return flush;
            function flush() {
                var cancelled;
                for (var i = 0, len = callbacks.length; !cancelled && i < len; i += 1) {
                    cancelled = callbacks[i].apply(context, args) === false;
                }
                return !cancelled;
            }
        }
        function getNextTick() {
            var nextTickFn;
            if (window.setImmediate) {
                nextTickFn = function nextTickSetImmediate(fn) {
                    setImmediate(function() {
                        fn();
                    });
                };
            } else {
                nextTickFn = function nextTickSetTimeout(fn) {
                    setTimeout(function() {
                        fn();
                    }, 0);
                };
            }
            return nextTickFn;
        }
        function bindContext(fn, context) {
            return fn.bind ? fn.bind(context) : function() {
                fn.apply(context, [].slice.call(arguments, 0));
            };
        }
    }();
    var highlight = function(doc) {
        "use strict";
        var defaults = {
            node: null,
            pattern: null,
            tagName: "strong",
            className: null,
            wordsOnly: false,
            caseSensitive: false
        };
        return function hightlight(o) {
            var regex;
            o = _.mixin({}, defaults, o);
            if (!o.node || !o.pattern) {
                return;
            }
            o.pattern = _.isArray(o.pattern) ? o.pattern : [ o.pattern ];
            regex = getRegex(o.pattern, o.caseSensitive, o.wordsOnly);
            traverse(o.node, hightlightTextNode);
            function hightlightTextNode(textNode) {
                var match, patternNode, wrapperNode;
                if (match = regex.exec(textNode.data)) {
                    wrapperNode = doc.createElement(o.tagName);
                    o.className && (wrapperNode.className = o.className);
                    patternNode = textNode.splitText(match.index);
                    patternNode.splitText(match[0].length);
                    wrapperNode.appendChild(patternNode.cloneNode(true));
                    textNode.parentNode.replaceChild(wrapperNode, patternNode);
                }
                return !!match;
            }
            function traverse(el, hightlightTextNode) {
                var childNode, TEXT_NODE_TYPE = 3;
                for (var i = 0; i < el.childNodes.length; i++) {
                    childNode = el.childNodes[i];
                    if (childNode.nodeType === TEXT_NODE_TYPE) {
                        i += hightlightTextNode(childNode) ? 1 : 0;
                    } else {
                        traverse(childNode, hightlightTextNode);
                    }
                }
            }
        };
        function getRegex(patterns, caseSensitive, wordsOnly) {
            var escapedPatterns = [], regexStr;
            for (var i = 0, len = patterns.length; i < len; i++) {
                escapedPatterns.push(_.escapeRegExChars(patterns[i]));
            }
            regexStr = wordsOnly ? "\\b(" + escapedPatterns.join("|") + ")\\b" : "(" + escapedPatterns.join("|") + ")";
            return caseSensitive ? new RegExp(regexStr) : new RegExp(regexStr, "i");
        }
    }(window.document);
    var Input = function() {
        "use strict";
        var specialKeyCodeMap;
        specialKeyCodeMap = {
            9: "tab",
            27: "esc",
            37: "left",
            39: "right",
            13: "enter",
            38: "up",
            40: "down"
        };
        function Input(o, www) {
            o = o || {};
            if (!o.input) {
                $.error("input is missing");
            }
            www.mixin(this);
            this.$hint = $(o.hint);
            this.$input = $(o.input);
            this.query = this.$input.val();
            this.queryWhenFocused = this.hasFocus() ? this.query : null;
            this.$overflowHelper = buildOverflowHelper(this.$input);
            this._checkLanguageDirection();
            if (this.$hint.length === 0) {
                this.setHint = this.getHint = this.clearHint = this.clearHintIfInvalid = _.noop;
            }
        }
        Input.normalizeQuery = function(str) {
            return _.toStr(str).replace(/^\s*/g, "").replace(/\s{2,}/g, " ");
        };
        _.mixin(Input.prototype, EventEmitter, {
            _onBlur: function onBlur() {
                this.resetInputValue();
                this.trigger("blurred");
            },
            _onFocus: function onFocus() {
                this.queryWhenFocused = this.query;
                this.trigger("focused");
            },
            _onKeydown: function onKeydown($e) {
                var keyName = specialKeyCodeMap[$e.which || $e.keyCode];
                this._managePreventDefault(keyName, $e);
                if (keyName && this._shouldTrigger(keyName, $e)) {
                    this.trigger(keyName + "Keyed", $e);
                }
            },
            _onInput: function onInput() {
                this._setQuery(this.getInputValue());
                this.clearHintIfInvalid();
                this._checkLanguageDirection();
            },
            _managePreventDefault: function managePreventDefault(keyName, $e) {
                var preventDefault;
                switch (keyName) {
                  case "up":
                  case "down":
                    preventDefault = !withModifier($e);
                    break;

                  default:
                    preventDefault = false;
                }
                preventDefault && $e.preventDefault();
            },
            _shouldTrigger: function shouldTrigger(keyName, $e) {
                var trigger;
                switch (keyName) {
                  case "tab":
                    trigger = !withModifier($e);
                    break;

                  default:
                    trigger = true;
                }
                return trigger;
            },
            _checkLanguageDirection: function checkLanguageDirection() {
                var dir = (this.$input.css("direction") || "ltr").toLowerCase();
                if (this.dir !== dir) {
                    this.dir = dir;
                    this.$hint.attr("dir", dir);
                    this.trigger("langDirChanged", dir);
                }
            },
            _setQuery: function setQuery(val, silent) {
                var areEquivalent, hasDifferentWhitespace;
                areEquivalent = areQueriesEquivalent(val, this.query);
                hasDifferentWhitespace = areEquivalent ? this.query.length !== val.length : false;
                this.query = val;
                if (!silent && !areEquivalent) {
                    this.trigger("queryChanged", this.query);
                } else if (!silent && hasDifferentWhitespace) {
                    this.trigger("whitespaceChanged", this.query);
                }
            },
            bind: function() {
                var that = this, onBlur, onFocus, onKeydown, onInput;
                onBlur = _.bind(this._onBlur, this);
                onFocus = _.bind(this._onFocus, this);
                onKeydown = _.bind(this._onKeydown, this);
                onInput = _.bind(this._onInput, this);
                this.$input.on("blur.tt", onBlur).on("focus.tt", onFocus).on("keydown.tt", onKeydown);
                if (!_.isMsie() || _.isMsie() > 9) {
                    this.$input.on("input.tt", onInput);
                } else {
                    this.$input.on("keydown.tt keypress.tt cut.tt paste.tt", function($e) {
                        if (specialKeyCodeMap[$e.which || $e.keyCode]) {
                            return;
                        }
                        _.defer(_.bind(that._onInput, that, $e));
                    });
                }
                return this;
            },
            focus: function focus() {
                this.$input.focus();
            },
            blur: function blur() {
                this.$input.blur();
            },
            getLangDir: function getLangDir() {
                return this.dir;
            },
            getQuery: function getQuery() {
                return this.query || "";
            },
            setQuery: function setQuery(val, silent) {
                this.setInputValue(val);
                this._setQuery(val, silent);
            },
            hasQueryChangedSinceLastFocus: function hasQueryChangedSinceLastFocus() {
                return this.query !== this.queryWhenFocused;
            },
            getInputValue: function getInputValue() {
                return this.$input.val();
            },
            setInputValue: function setInputValue(value) {
                this.$input.val(value);
                this.clearHintIfInvalid();
                this._checkLanguageDirection();
            },
            resetInputValue: function resetInputValue() {
                this.setInputValue(this.query);
            },
            getHint: function getHint() {
                return this.$hint.val();
            },
            setHint: function setHint(value) {
                this.$hint.val(value);
            },
            clearHint: function clearHint() {
                this.setHint("");
            },
            clearHintIfInvalid: function clearHintIfInvalid() {
                var val, hint, valIsPrefixOfHint, isValid;
                val = this.getInputValue();
                hint = this.getHint();
                valIsPrefixOfHint = val !== hint && hint.indexOf(val) === 0;
                isValid = val !== "" && valIsPrefixOfHint && !this.hasOverflow();
                !isValid && this.clearHint();
            },
            hasFocus: function hasFocus() {
                return this.$input.is(":focus");
            },
            hasOverflow: function hasOverflow() {
                var constraint = this.$input.width() - 2;
                this.$overflowHelper.text(this.getInputValue());
                return this.$overflowHelper.width() >= constraint;
            },
            isCursorAtEnd: function() {
                var valueLength, selectionStart, range;
                valueLength = this.$input.val().length;
                selectionStart = this.$input[0].selectionStart;
                if (_.isNumber(selectionStart)) {
                    return selectionStart === valueLength;
                } else if (document.selection) {
                    range = document.selection.createRange();
                    range.moveStart("character", -valueLength);
                    return valueLength === range.text.length;
                }
                return true;
            },
            destroy: function destroy() {
                this.$hint.off(".tt");
                this.$input.off(".tt");
                this.$overflowHelper.remove();
                this.$hint = this.$input = this.$overflowHelper = $("<div>");
            }
        });
        return Input;
        function buildOverflowHelper($input) {
            return $('<pre aria-hidden="true"></pre>').css({
                position: "absolute",
                visibility: "hidden",
                whiteSpace: "pre",
                fontFamily: $input.css("font-family"),
                fontSize: $input.css("font-size"),
                fontStyle: $input.css("font-style"),
                fontVariant: $input.css("font-variant"),
                fontWeight: $input.css("font-weight"),
                wordSpacing: $input.css("word-spacing"),
                letterSpacing: $input.css("letter-spacing"),
                textIndent: $input.css("text-indent"),
                textRendering: $input.css("text-rendering"),
                textTransform: $input.css("text-transform")
            }).insertAfter($input);
        }
        function areQueriesEquivalent(a, b) {
            return Input.normalizeQuery(a) === Input.normalizeQuery(b);
        }
        function withModifier($e) {
            return $e.altKey || $e.ctrlKey || $e.metaKey || $e.shiftKey;
        }
    }();
    var Dataset = function() {
        "use strict";
        var keys, nameGenerator;
        keys = {
            val: "tt-selectable-display",
            obj: "tt-selectable-object"
        };
        nameGenerator = _.getIdGenerator();
        function Dataset(o, www) {
            o = o || {};
            o.templates = o.templates || {};
            o.templates.notFound = o.templates.notFound || o.templates.empty;
            if (!o.source) {
                $.error("missing source");
            }
            if (!o.node) {
                $.error("missing node");
            }
            if (o.name && !isValidName(o.name)) {
                $.error("invalid dataset name: " + o.name);
            }
            www.mixin(this);
            this.highlight = !!o.highlight;
            this.name = o.name || nameGenerator();
            this.limit = o.limit || 5;
            this.displayFn = getDisplayFn(o.display || o.displayKey);
            this.templates = getTemplates(o.templates, this.displayFn);
            this.source = o.source.__ttAdapter ? o.source.__ttAdapter() : o.source;
            this.async = _.isUndefined(o.async) ? this.source.length > 2 : !!o.async;
            this._resetLastSuggestion();
            this.$el = $(o.node).addClass(this.classes.dataset).addClass(this.classes.dataset + "-" + this.name);
        }
        Dataset.extractData = function extractData(el) {
            var $el = $(el);
            if ($el.data(keys.obj)) {
                return {
                    val: $el.data(keys.val) || "",
                    obj: $el.data(keys.obj) || null
                };
            }
            return null;
        };
        _.mixin(Dataset.prototype, EventEmitter, {
            _overwrite: function overwrite(query, suggestions) {
                suggestions = suggestions || [];
                if (suggestions.length) {
                    this._renderSuggestions(query, suggestions);
                } else if (this.async && this.templates.pending) {
                    this._renderPending(query);
                } else if (!this.async && this.templates.notFound) {
                    this._renderNotFound(query);
                } else {
                    this._empty();
                }
                this.trigger("rendered", this.name, suggestions, false);
            },
            _append: function append(query, suggestions) {
                suggestions = suggestions || [];
                if (suggestions.length && this.$lastSuggestion.length) {
                    this._appendSuggestions(query, suggestions);
                } else if (suggestions.length) {
                    this._renderSuggestions(query, suggestions);
                } else if (!this.$lastSuggestion.length && this.templates.notFound) {
                    this._renderNotFound(query);
                }
                this.trigger("rendered", this.name, suggestions, true);
            },
            _renderSuggestions: function renderSuggestions(query, suggestions) {
                var $fragment;
                $fragment = this._getSuggestionsFragment(query, suggestions);
                this.$lastSuggestion = $fragment.children().last();
                this.$el.html($fragment).prepend(this._getHeader(query, suggestions)).append(this._getFooter(query, suggestions));
            },
            _appendSuggestions: function appendSuggestions(query, suggestions) {
                var $fragment, $lastSuggestion;
                $fragment = this._getSuggestionsFragment(query, suggestions);
                $lastSuggestion = $fragment.children().last();
                this.$lastSuggestion.after($fragment);
                this.$lastSuggestion = $lastSuggestion;
            },
            _renderPending: function renderPending(query) {
                var template = this.templates.pending;
                this._resetLastSuggestion();
                template && this.$el.html(template({
                    query: query,
                    dataset: this.name
                }));
            },
            _renderNotFound: function renderNotFound(query) {
                var template = this.templates.notFound;
                this._resetLastSuggestion();
                template && this.$el.html(template({
                    query: query,
                    dataset: this.name
                }));
            },
            _empty: function empty() {
                this.$el.empty();
                this._resetLastSuggestion();
            },
            _getSuggestionsFragment: function getSuggestionsFragment(query, suggestions) {
                var that = this, fragment;
                fragment = document.createDocumentFragment();
                _.each(suggestions, function getSuggestionNode(suggestion) {
                    var $el, context;
                    context = that._injectQuery(query, suggestion);
                    $el = $(that.templates.suggestion(context)).data(keys.obj, suggestion).data(keys.val, that.displayFn(suggestion)).addClass(that.classes.suggestion + " " + that.classes.selectable);
                    fragment.appendChild($el[0]);
                });
                this.highlight && highlight({
                    className: this.classes.highlight,
                    node: fragment,
                    pattern: query
                });
                return $(fragment);
            },
            _getFooter: function getFooter(query, suggestions) {
                return this.templates.footer ? this.templates.footer({
                    query: query,
                    suggestions: suggestions,
                    dataset: this.name
                }) : null;
            },
            _getHeader: function getHeader(query, suggestions) {
                return this.templates.header ? this.templates.header({
                    query: query,
                    suggestions: suggestions,
                    dataset: this.name
                }) : null;
            },
            _resetLastSuggestion: function resetLastSuggestion() {
                this.$lastSuggestion = $();
            },
            _injectQuery: function injectQuery(query, obj) {
                return _.isObject(obj) ? _.mixin({
                    _query: query
                }, obj) : obj;
            },
            update: function update(query) {
                var that = this, canceled = false, syncCalled = false, rendered = 0;
                this.cancel();
                this.cancel = function cancel() {
                    canceled = true;
                    that.cancel = $.noop;
                    that.async && that.trigger("asyncCanceled", query);
                };
                this.source(query, sync, async);
                !syncCalled && sync([]);
                function sync(suggestions) {
                    if (syncCalled) {
                        return;
                    }
                    syncCalled = true;
                    suggestions = (suggestions || []).slice(0, that.limit);
                    rendered = suggestions.length;
                    that._overwrite(query, suggestions);
                    if (rendered < that.limit && that.async) {
                        that.trigger("asyncRequested", query);
                    }
                }
                function async(suggestions) {
                    suggestions = suggestions || [];
                    if (!canceled && rendered < that.limit) {
                        that.cancel = $.noop;
                        rendered += suggestions.length;
                        that._append(query, suggestions.slice(0, that.limit - rendered));
                        that.async && that.trigger("asyncReceived", query);
                    }
                }
            },
            cancel: $.noop,
            clear: function clear() {
                this._empty();
                this.cancel();
                this.trigger("cleared");
            },
            isEmpty: function isEmpty() {
                return this.$el.is(":empty");
            },
            destroy: function destroy() {
                this.$el = $("<div>");
            }
        });
        return Dataset;
        function getDisplayFn(display) {
            display = display || _.stringify;
            return _.isFunction(display) ? display : displayFn;
            function displayFn(obj) {
                return obj[display];
            }
        }
        function getTemplates(templates, displayFn) {
            return {
                notFound: templates.notFound && _.templatify(templates.notFound),
                pending: templates.pending && _.templatify(templates.pending),
                header: templates.header && _.templatify(templates.header),
                footer: templates.footer && _.templatify(templates.footer),
                suggestion: templates.suggestion || suggestionTemplate
            };
            function suggestionTemplate(context) {
                return $("<div>").text(displayFn(context));
            }
        }
        function isValidName(str) {
            return /^[_a-zA-Z0-9-]+$/.test(str);
        }
    }();
    var Menu = function() {
        "use strict";
        function Menu(o, www) {
            var that = this;
            o = o || {};
            if (!o.node) {
                $.error("node is required");
            }
            www.mixin(this);
            this.$node = $(o.node);
            this.query = null;
            this.datasets = _.map(o.datasets, initializeDataset);
            function initializeDataset(oDataset) {
                var node = that.$node.find(oDataset.node).first();
                oDataset.node = node.length ? node : $("<div>").appendTo(that.$node);
                return new Dataset(oDataset, www);
            }
        }
        _.mixin(Menu.prototype, EventEmitter, {
            _onSelectableClick: function onSelectableClick($e) {
                this.trigger("selectableClicked", $($e.currentTarget));
            },
            _onRendered: function onRendered(type, dataset, suggestions, async) {
                this.$node.toggleClass(this.classes.empty, this._allDatasetsEmpty());
                this.trigger("datasetRendered", dataset, suggestions, async);
            },
            _onCleared: function onCleared() {
                this.$node.toggleClass(this.classes.empty, this._allDatasetsEmpty());
                this.trigger("datasetCleared");
            },
            _propagate: function propagate() {
                this.trigger.apply(this, arguments);
            },
            _allDatasetsEmpty: function allDatasetsEmpty() {
                return _.every(this.datasets, isDatasetEmpty);
                function isDatasetEmpty(dataset) {
                    return dataset.isEmpty();
                }
            },
            _getSelectables: function getSelectables() {
                return this.$node.find(this.selectors.selectable);
            },
            _removeCursor: function _removeCursor() {
                var $selectable = this.getActiveSelectable();
                $selectable && $selectable.removeClass(this.classes.cursor);
            },
            _ensureVisible: function ensureVisible($el) {
                var elTop, elBottom, nodeScrollTop, nodeHeight;
                elTop = $el.position().top;
                elBottom = elTop + $el.outerHeight(true);
                nodeScrollTop = this.$node.scrollTop();
                nodeHeight = this.$node.height() + parseInt(this.$node.css("paddingTop"), 10) + parseInt(this.$node.css("paddingBottom"), 10);
                if (elTop < 0) {
                    this.$node.scrollTop(nodeScrollTop + elTop);
                } else if (nodeHeight < elBottom) {
                    this.$node.scrollTop(nodeScrollTop + (elBottom - nodeHeight));
                }
            },
            bind: function() {
                var that = this, onSelectableClick;
                onSelectableClick = _.bind(this._onSelectableClick, this);
                this.$node.on("click.tt", this.selectors.selectable, onSelectableClick);
                _.each(this.datasets, function(dataset) {
                    dataset.onSync("asyncRequested", that._propagate, that).onSync("asyncCanceled", that._propagate, that).onSync("asyncReceived", that._propagate, that).onSync("rendered", that._onRendered, that).onSync("cleared", that._onCleared, that);
                });
                return this;
            },
            isOpen: function isOpen() {
                return this.$node.hasClass(this.classes.open);
            },
            open: function open() {
                this.$node.addClass(this.classes.open);
            },
            close: function close() {
                this.$node.removeClass(this.classes.open);
                this._removeCursor();
            },
            setLanguageDirection: function setLanguageDirection(dir) {
                this.$node.attr("dir", dir);
            },
            selectableRelativeToCursor: function selectableRelativeToCursor(delta) {
                var $selectables, $oldCursor, oldIndex, newIndex;
                $oldCursor = this.getActiveSelectable();
                $selectables = this._getSelectables();
                oldIndex = $oldCursor ? $selectables.index($oldCursor) : -1;
                newIndex = oldIndex + delta;
                newIndex = (newIndex + 1) % ($selectables.length + 1) - 1;
                newIndex = newIndex < -1 ? $selectables.length - 1 : newIndex;
                return newIndex === -1 ? null : $selectables.eq(newIndex);
            },
            setCursor: function setCursor($selectable) {
                this._removeCursor();
                if ($selectable = $selectable && $selectable.first()) {
                    $selectable.addClass(this.classes.cursor);
                    this._ensureVisible($selectable);
                }
            },
            getSelectableData: function getSelectableData($el) {
                return $el && $el.length ? Dataset.extractData($el) : null;
            },
            getActiveSelectable: function getActiveSelectable() {
                var $selectable = this._getSelectables().filter(this.selectors.cursor).first();
                return $selectable.length ? $selectable : null;
            },
            getTopSelectable: function getTopSelectable() {
                var $selectable = this._getSelectables().first();
                return $selectable.length ? $selectable : null;
            },
            update: function update(query) {
                var isValidUpdate = query !== this.query;
                if (isValidUpdate) {
                    this.query = query;
                    _.each(this.datasets, updateDataset);
                }
                return isValidUpdate;
                function updateDataset(dataset) {
                    dataset.update(query);
                }
            },
            empty: function empty() {
                _.each(this.datasets, clearDataset);
                this.query = null;
                this.$node.addClass(this.classes.empty);
                function clearDataset(dataset) {
                    dataset.clear();
                }
            },
            destroy: function destroy() {
                this.$node.off(".tt");
                this.$node = $("<div>");
                _.each(this.datasets, destroyDataset);
                function destroyDataset(dataset) {
                    dataset.destroy();
                }
            }
        });
        return Menu;
    }();
    var DefaultMenu = function() {
        "use strict";
        var s = Menu.prototype;
        function DefaultMenu() {
            Menu.apply(this, [].slice.call(arguments, 0));
        }
        _.mixin(DefaultMenu.prototype, Menu.prototype, {
            open: function open() {
                !this._allDatasetsEmpty() && this._show();
                return s.open.apply(this, [].slice.call(arguments, 0));
            },
            close: function close() {
                this._hide();
                return s.close.apply(this, [].slice.call(arguments, 0));
            },
            _onRendered: function onRendered() {
                if (this._allDatasetsEmpty()) {
                    this._hide();
                } else {
                    this.isOpen() && this._show();
                }
                return s._onRendered.apply(this, [].slice.call(arguments, 0));
            },
            _onCleared: function onCleared() {
                if (this._allDatasetsEmpty()) {
                    this._hide();
                } else {
                    this.isOpen() && this._show();
                }
                return s._onCleared.apply(this, [].slice.call(arguments, 0));
            },
            setLanguageDirection: function setLanguageDirection(dir) {
                this.$node.css(dir === "ltr" ? this.css.ltr : this.css.rtl);
                return s.setLanguageDirection.apply(this, [].slice.call(arguments, 0));
            },
            _hide: function hide() {
                this.$node.hide();
            },
            _show: function show() {
                this.$node.css("display", "block");
            }
        });
        return DefaultMenu;
    }();
    var Typeahead = function() {
        "use strict";
        function Typeahead(o, www) {
            var onFocused, onBlurred, onEnterKeyed, onTabKeyed, onEscKeyed, onUpKeyed, onDownKeyed, onLeftKeyed, onRightKeyed, onQueryChanged, onWhitespaceChanged;
            o = o || {};
            if (!o.input) {
                $.error("missing input");
            }
            if (!o.menu) {
                $.error("missing menu");
            }
            if (!o.eventBus) {
                $.error("missing event bus");
            }
            www.mixin(this);
            this.eventBus = o.eventBus;
            this.minLength = _.isNumber(o.minLength) ? o.minLength : 1;
            this.input = o.input;
            this.menu = o.menu;
            this.enabled = true;
            this.active = false;
            this.input.hasFocus() && this.activate();
            this.dir = this.input.getLangDir();
            this._hacks();
            this.menu.bind().onSync("selectableClicked", this._onSelectableClicked, this).onSync("asyncRequested", this._onAsyncRequested, this).onSync("asyncCanceled", this._onAsyncCanceled, this).onSync("asyncReceived", this._onAsyncReceived, this).onSync("datasetRendered", this._onDatasetRendered, this).onSync("datasetCleared", this._onDatasetCleared, this);
            onFocused = c(this, "activate", "open", "_onFocused");
            onBlurred = c(this, "deactivate", "_onBlurred");
            onEnterKeyed = c(this, "isActive", "isOpen", "_onEnterKeyed");
            onTabKeyed = c(this, "isActive", "isOpen", "_onTabKeyed");
            onEscKeyed = c(this, "isActive", "_onEscKeyed");
            onUpKeyed = c(this, "isActive", "open", "_onUpKeyed");
            onDownKeyed = c(this, "isActive", "open", "_onDownKeyed");
            onLeftKeyed = c(this, "isActive", "isOpen", "_onLeftKeyed");
            onRightKeyed = c(this, "isActive", "isOpen", "_onRightKeyed");
            onQueryChanged = c(this, "_openIfActive", "_onQueryChanged");
            onWhitespaceChanged = c(this, "_openIfActive", "_onWhitespaceChanged");
            this.input.bind().onSync("focused", onFocused, this).onSync("blurred", onBlurred, this).onSync("enterKeyed", onEnterKeyed, this).onSync("tabKeyed", onTabKeyed, this).onSync("escKeyed", onEscKeyed, this).onSync("upKeyed", onUpKeyed, this).onSync("downKeyed", onDownKeyed, this).onSync("leftKeyed", onLeftKeyed, this).onSync("rightKeyed", onRightKeyed, this).onSync("queryChanged", onQueryChanged, this).onSync("whitespaceChanged", onWhitespaceChanged, this).onSync("langDirChanged", this._onLangDirChanged, this);
        }
        _.mixin(Typeahead.prototype, {
            _hacks: function hacks() {
                var $input, $menu;
                $input = this.input.$input || $("<div>");
                $menu = this.menu.$node || $("<div>");
                $input.on("blur.tt", function($e) {
                    var active, isActive, hasActive;
                    active = document.activeElement;
                    isActive = $menu.is(active);
                    hasActive = $menu.has(active).length > 0;
                    if (_.isMsie() && (isActive || hasActive)) {
                        $e.preventDefault();
                        $e.stopImmediatePropagation();
                        _.defer(function() {
                            $input.focus();
                        });
                    }
                });
                $menu.on("mousedown.tt", function($e) {
                    $e.preventDefault();
                });
            },
            _onSelectableClicked: function onSelectableClicked(type, $el) {
                this.select($el);
            },
            _onDatasetCleared: function onDatasetCleared() {
                this._updateHint();
            },
            _onDatasetRendered: function onDatasetRendered(type, dataset, suggestions, async) {
                this._updateHint();
                this.eventBus.trigger("render", suggestions, async, dataset);
            },
            _onAsyncRequested: function onAsyncRequested(type, dataset, query) {
                this.eventBus.trigger("asyncrequest", query, dataset);
            },
            _onAsyncCanceled: function onAsyncCanceled(type, dataset, query) {
                this.eventBus.trigger("asynccancel", query, dataset);
            },
            _onAsyncReceived: function onAsyncReceived(type, dataset, query) {
                this.eventBus.trigger("asyncreceive", query, dataset);
            },
            _onFocused: function onFocused() {
                this._minLengthMet() && this.menu.update(this.input.getQuery());
            },
            _onBlurred: function onBlurred() {
                if (this.input.hasQueryChangedSinceLastFocus()) {
                    this.eventBus.trigger("change", this.input.getQuery());
                }
            },
            _onEnterKeyed: function onEnterKeyed(type, $e) {
                var $selectable;
                if ($selectable = this.menu.getActiveSelectable()) {
                    this.select($selectable) && $e.preventDefault();
                }
            },
            _onTabKeyed: function onTabKeyed(type, $e) {
                var $selectable;
                if ($selectable = this.menu.getActiveSelectable()) {
                    this.select($selectable) && $e.preventDefault();
                } else if ($selectable = this.menu.getTopSelectable()) {
                    this.autocomplete($selectable) && $e.preventDefault();
                }
            },
            _onEscKeyed: function onEscKeyed() {
                this.close();
            },
            _onUpKeyed: function onUpKeyed() {
                this.moveCursor(-1);
            },
            _onDownKeyed: function onDownKeyed() {
                this.moveCursor(+1);
            },
            _onLeftKeyed: function onLeftKeyed() {
                if (this.dir === "rtl" && this.input.isCursorAtEnd()) {
                    this.autocomplete(this.menu.getTopSelectable());
                }
            },
            _onRightKeyed: function onRightKeyed() {
                if (this.dir === "ltr" && this.input.isCursorAtEnd()) {
                    this.autocomplete(this.menu.getTopSelectable());
                }
            },
            _onQueryChanged: function onQueryChanged(e, query) {
                this._minLengthMet(query) ? this.menu.update(query) : this.menu.empty();
            },
            _onWhitespaceChanged: function onWhitespaceChanged() {
                this._updateHint();
            },
            _onLangDirChanged: function onLangDirChanged(e, dir) {
                if (this.dir !== dir) {
                    this.dir = dir;
                    this.menu.setLanguageDirection(dir);
                }
            },
            _openIfActive: function openIfActive() {
                this.isActive() && this.open();
            },
            _minLengthMet: function minLengthMet(query) {
                query = _.isString(query) ? query : this.input.getQuery() || "";
                return query.length >= this.minLength;
            },
            _updateHint: function updateHint() {
                var $selectable, data, val, query, escapedQuery, frontMatchRegEx, match;
                $selectable = this.menu.getTopSelectable();
                data = this.menu.getSelectableData($selectable);
                val = this.input.getInputValue();
                if (data && !_.isBlankString(val) && !this.input.hasOverflow()) {
                    query = Input.normalizeQuery(val);
                    escapedQuery = _.escapeRegExChars(query);
                    frontMatchRegEx = new RegExp("^(?:" + escapedQuery + ")(.+$)", "i");
                    match = frontMatchRegEx.exec(data.val);
                    match && this.input.setHint(val + match[1]);
                } else {
                    this.input.clearHint();
                }
            },
            isEnabled: function isEnabled() {
                return this.enabled;
            },
            enable: function enable() {
                this.enabled = true;
            },
            disable: function disable() {
                this.enabled = false;
            },
            isActive: function isActive() {
                return this.active;
            },
            activate: function activate() {
                if (this.isActive()) {
                    return true;
                } else if (!this.isEnabled() || this.eventBus.before("active")) {
                    return false;
                } else {
                    this.active = true;
                    this.eventBus.trigger("active");
                    return true;
                }
            },
            deactivate: function deactivate() {
                if (!this.isActive()) {
                    return true;
                } else if (this.eventBus.before("idle")) {
                    return false;
                } else {
                    this.active = false;
                    this.close();
                    this.eventBus.trigger("idle");
                    return true;
                }
            },
            isOpen: function isOpen() {
                return this.menu.isOpen();
            },
            open: function open() {
                if (!this.isOpen() && !this.eventBus.before("open")) {
                    this.menu.open();
                    this._updateHint();
                    this.eventBus.trigger("open");
                }
                return this.isOpen();
            },
            close: function close() {
                if (this.isOpen() && !this.eventBus.before("close")) {
                    this.menu.close();
                    this.input.clearHint();
                    this.input.resetInputValue();
                    this.eventBus.trigger("close");
                }
                return !this.isOpen();
            },
            setVal: function setVal(val) {
                this.input.setQuery(_.toStr(val));
            },
            getVal: function getVal() {
                return this.input.getQuery();
            },
            select: function select($selectable) {
                var data = this.menu.getSelectableData($selectable);
                if (data && !this.eventBus.before("select", data.obj)) {
                    this.input.setQuery(data.val, true);
                    this.eventBus.trigger("select", data.obj);
                    this.close();
                    return true;
                }
                return false;
            },
            autocomplete: function autocomplete($selectable) {
                var query, data, isValid;
                query = this.input.getQuery();
                data = this.menu.getSelectableData($selectable);
                isValid = data && query !== data.val;
                if (isValid && !this.eventBus.before("autocomplete", data.obj)) {
                    this.input.setQuery(data.val);
                    this.eventBus.trigger("autocomplete", data.obj);
                    return true;
                }
                return false;
            },
            moveCursor: function moveCursor(delta) {
                var query, $candidate, data, payload, cancelMove;
                query = this.input.getQuery();
                $candidate = this.menu.selectableRelativeToCursor(delta);
                data = this.menu.getSelectableData($candidate);
                payload = data ? data.obj : null;
                cancelMove = this._minLengthMet() && this.menu.update(query);
                if (!cancelMove && !this.eventBus.before("cursorchange", payload)) {
                    this.menu.setCursor($candidate);
                    if (data) {
                        this.input.setInputValue(data.val);
                    } else {
                        this.input.resetInputValue();
                        this._updateHint();
                    }
                    this.eventBus.trigger("cursorchange", payload);
                    return true;
                }
                return false;
            },
            destroy: function destroy() {
                this.input.destroy();
                this.menu.destroy();
            }
        });
        return Typeahead;
        function c(ctx) {
            var methods = [].slice.call(arguments, 1);
            return function() {
                var args = [].slice.call(arguments);
                _.each(methods, function(method) {
                    return ctx[method].apply(ctx, args);
                });
            };
        }
    }();
    (function() {
        "use strict";
        var old, keys, methods;
        old = $.fn.typeahead;
        keys = {
            www: "tt-www",
            attrs: "tt-attrs",
            typeahead: "tt-typeahead"
        };
        methods = {
            initialize: function initialize(o, datasets) {
                var www;
                datasets = _.isArray(datasets) ? datasets : [].slice.call(arguments, 1);
                o = o || {};
                www = WWW(o.classNames);
                return this.each(attach);
                function attach() {
                    var $input, $wrapper, $hint, $menu, defaultHint, defaultMenu, eventBus, input, menu, typeahead, MenuConstructor;
                    _.each(datasets, function(d) {
                        d.highlight = !!o.highlight;
                    });
                    $input = $(this);
                    $wrapper = $(www.html.wrapper);
                    $hint = $elOrNull(o.hint);
                    $menu = $elOrNull(o.menu);
                    defaultHint = o.hint !== false && !$hint;
                    defaultMenu = o.menu !== false && !$menu;
                    defaultHint && ($hint = buildHintFromInput($input, www));
                    defaultMenu && ($menu = $(www.html.menu).css(www.css.menu));
                    $hint && $hint.val("");
                    $input = prepInput($input, www);
                    if (defaultHint || defaultMenu) {
                        $wrapper.css(www.css.wrapper);
                        $input.css(defaultHint ? www.css.input : www.css.inputWithNoHint);
                        $input.wrap($wrapper).parent().prepend(defaultHint ? $hint : null).append(defaultMenu ? $menu : null);
                    }
                    MenuConstructor = defaultMenu ? DefaultMenu : Menu;
                    eventBus = new EventBus({
                        el: $input
                    });
                    input = new Input({
                        hint: $hint,
                        input: $input
                    }, www);
                    menu = new MenuConstructor({
                        node: $menu,
                        datasets: datasets
                    }, www);
                    typeahead = new Typeahead({
                        input: input,
                        menu: menu,
                        eventBus: eventBus,
                        minLength: o.minLength
                    }, www);
                    $input.data(keys.www, www);
                    $input.data(keys.typeahead, typeahead);
                }
            },
            isEnabled: function isEnabled() {
                var enabled;
                ttEach(this.first(), function(t) {
                    enabled = t.isEnabled();
                });
                return enabled;
            },
            enable: function enable() {
                ttEach(this, function(t) {
                    t.enable();
                });
                return this;
            },
            disable: function disable() {
                ttEach(this, function(t) {
                    t.disable();
                });
                return this;
            },
            isActive: function isActive() {
                var active;
                ttEach(this.first(), function(t) {
                    active = t.isActive();
                });
                return active;
            },
            activate: function activate() {
                ttEach(this, function(t) {
                    t.activate();
                });
                return this;
            },
            deactivate: function deactivate() {
                ttEach(this, function(t) {
                    t.deactivate();
                });
                return this;
            },
            isOpen: function isOpen() {
                var open;
                ttEach(this.first(), function(t) {
                    open = t.isOpen();
                });
                return open;
            },
            open: function open() {
                ttEach(this, function(t) {
                    t.open();
                });
                return this;
            },
            close: function close() {
                ttEach(this, function(t) {
                    t.close();
                });
                return this;
            },
            select: function select(el) {
                var success = false, $el = $(el);
                ttEach(this.first(), function(t) {
                    success = t.select($el);
                });
                return success;
            },
            autocomplete: function autocomplete(el) {
                var success = false, $el = $(el);
                ttEach(this.first(), function(t) {
                    success = t.autocomplete($el);
                });
                return success;
            },
            moveCursor: function moveCursoe(delta) {
                var success = false;
                ttEach(this.first(), function(t) {
                    success = t.moveCursor(delta);
                });
                return success;
            },
            val: function val(newVal) {
                var query;
                if (!arguments.length) {
                    ttEach(this.first(), function(t) {
                        query = t.getVal();
                    });
                    return query;
                } else {
                    ttEach(this, function(t) {
                        t.setVal(newVal);
                    });
                    return this;
                }
            },
            destroy: function destroy() {
                ttEach(this, function(typeahead, $input) {
                    revert($input);
                    typeahead.destroy();
                });
                return this;
            }
        };
        $.fn.typeahead = function(method) {
            if (methods[method]) {
                return methods[method].apply(this, [].slice.call(arguments, 1));
            } else {
                return methods.initialize.apply(this, arguments);
            }
        };
        $.fn.typeahead.noConflict = function noConflict() {
            $.fn.typeahead = old;
            return this;
        };
        function ttEach($els, fn) {
            $els.each(function() {
                var $input = $(this), typeahead;
                (typeahead = $input.data(keys.typeahead)) && fn(typeahead, $input);
            });
        }
        function buildHintFromInput($input, www) {
            return $input.clone().addClass(www.classes.hint).removeData().css(www.css.hint).css(getBackgroundStyles($input)).prop("readonly", true).removeAttr("id name placeholder required").attr({
                autocomplete: "off",
                spellcheck: "false",
                tabindex: -1
            });
        }
        function prepInput($input, www) {
            $input.data(keys.attrs, {
                dir: $input.attr("dir"),
                autocomplete: $input.attr("autocomplete"),
                spellcheck: $input.attr("spellcheck"),
                style: $input.attr("style")
            });
            $input.addClass(www.classes.input).attr({
                autocomplete: "off",
                spellcheck: false
            });
            try {
                !$input.attr("dir") && $input.attr("dir", "auto");
            } catch (e) {}
            return $input;
        }
        function getBackgroundStyles($el) {
            return {
                backgroundAttachment: $el.css("background-attachment"),
                backgroundClip: $el.css("background-clip"),
                backgroundColor: $el.css("background-color"),
                backgroundImage: $el.css("background-image"),
                backgroundOrigin: $el.css("background-origin"),
                backgroundPosition: $el.css("background-position"),
                backgroundRepeat: $el.css("background-repeat"),
                backgroundSize: $el.css("background-size")
            };
        }
        function revert($input) {
            var www, $wrapper;
            www = $input.data(keys.www);
            $wrapper = $input.parent().filter(www.selectors.wrapper);
            _.each($input.data(keys.attrs), function(val, key) {
                _.isUndefined(val) ? $input.removeAttr(key) : $input.attr(key, val);
            });
            $input.removeData(keys.typeahead).removeData(keys.www).removeData(keys.attr).removeClass(www.classes.input);
            if ($wrapper.length) {
                $input.detach().insertAfter($wrapper);
                $wrapper.remove();
            }
        }
        function $elOrNull(obj) {
            var isValid, $el;
            isValid = _.isJQuery(obj) || _.isElement(obj);
            $el = isValid ? $(obj).first() : [];
            return $el.length ? $el : null;
        }
    })();
});
/**!
 * @fileOverview Kickass library to create and place poppers near their reference elements.
 * @version 1.12.5
 * @license
 * Copyright (c) 2016 Federico Zivolo and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
	typeof define === 'function' && define.amd ? define(factory) :
	(global.Popper = factory());
}(this, (function () { 'use strict';

var nativeHints = ['native code', '[object MutationObserverConstructor]'];

/**
 * Determine if a function is implemented natively (as opposed to a polyfill).
 * @method
 * @memberof Popper.Utils
 * @argument {Function | undefined} fn the function to check
 * @returns {Boolean}
 */
var isNative = (function (fn) {
  return nativeHints.some(function (hint) {
    return (fn || '').toString().indexOf(hint) > -1;
  });
});

var isBrowser = typeof window !== 'undefined';
var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
var timeoutDuration = 0;
for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
  if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
    timeoutDuration = 1;
    break;
  }
}

function microtaskDebounce(fn) {
  var scheduled = false;
  var i = 0;
  var elem = document.createElement('span');

  // MutationObserver provides a mechanism for scheduling microtasks, which
  // are scheduled *before* the next task. This gives us a way to debounce
  // a function but ensure it's called *before* the next paint.
  var observer = new MutationObserver(function () {
    fn();
    scheduled = false;
  });

  observer.observe(elem, { attributes: true });

  return function () {
    if (!scheduled) {
      scheduled = true;
      elem.setAttribute('x-index', i);
      i = i + 1; // don't use compund (+=) because it doesn't get optimized in V8
    }
  };
}

function taskDebounce(fn) {
  var scheduled = false;
  return function () {
    if (!scheduled) {
      scheduled = true;
      setTimeout(function () {
        scheduled = false;
        fn();
      }, timeoutDuration);
    }
  };
}

// It's common for MutationObserver polyfills to be seen in the wild, however
// these rely on Mutation Events which only occur when an element is connected
// to the DOM. The algorithm used in this module does not use a connected element,
// and so we must ensure that a *native* MutationObserver is available.
var supportsNativeMutationObserver = isBrowser && isNative(window.MutationObserver);

/**
* Create a debounced version of a method, that's asynchronously deferred
* but called in the minimum time possible.
*
* @method
* @memberof Popper.Utils
* @argument {Function} fn
* @returns {Function}
*/
var debounce = supportsNativeMutationObserver ? microtaskDebounce : taskDebounce;

/**
 * Check if the given variable is a function
 * @method
 * @memberof Popper.Utils
 * @argument {Any} functionToCheck - variable to check
 * @returns {Boolean} answer to: is a function?
 */
function isFunction(functionToCheck) {
  var getType = {};
  return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
}

/**
 * Get CSS computed property of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Eement} element
 * @argument {String} property
 */
function getStyleComputedProperty(element, property) {
  if (element.nodeType !== 1) {
    return [];
  }
  // NOTE: 1 DOM access here
  var css = window.getComputedStyle(element, null);
  return property ? css[property] : css;
}

/**
 * Returns the parentNode or the host of the element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} parent
 */
function getParentNode(element) {
  if (element.nodeName === 'HTML') {
    return element;
  }
  return element.parentNode || element.host;
}

/**
 * Returns the scrolling parent of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} scroll parent
 */
function getScrollParent(element) {
  // Return body, `getScroll` will take care to get the correct `scrollTop` from it
  if (!element || ['HTML', 'BODY', '#document'].indexOf(element.nodeName) !== -1) {
    return window.document.body;
  }

  // Firefox want us to check `-x` and `-y` variations as well

  var _getStyleComputedProp = getStyleComputedProperty(element),
      overflow = _getStyleComputedProp.overflow,
      overflowX = _getStyleComputedProp.overflowX,
      overflowY = _getStyleComputedProp.overflowY;

  if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
    return element;
  }

  return getScrollParent(getParentNode(element));
}

/**
 * Returns the offset parent of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} offset parent
 */
function getOffsetParent(element) {
  // NOTE: 1 DOM access here
  var offsetParent = element && element.offsetParent;
  var nodeName = offsetParent && offsetParent.nodeName;

  if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
    return window.document.documentElement;
  }

  // .offsetParent will return the closest TD or TABLE in case
  // no offsetParent is present, I hate this job...
  if (['TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
    return getOffsetParent(offsetParent);
  }

  return offsetParent;
}

function isOffsetContainer(element) {
  var nodeName = element.nodeName;

  if (nodeName === 'BODY') {
    return false;
  }
  return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
}

/**
 * Finds the root node (document, shadowDOM root) of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} node
 * @returns {Element} root node
 */
function getRoot(node) {
  if (node.parentNode !== null) {
    return getRoot(node.parentNode);
  }

  return node;
}

/**
 * Finds the offset parent common to the two provided nodes
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element1
 * @argument {Element} element2
 * @returns {Element} common offset parent
 */
function findCommonOffsetParent(element1, element2) {
  // This check is needed to avoid errors in case one of the elements isn't defined for any reason
  if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
    return window.document.documentElement;
  }

  // Here we make sure to give as "start" the element that comes first in the DOM
  var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
  var start = order ? element1 : element2;
  var end = order ? element2 : element1;

  // Get common ancestor container
  var range = document.createRange();
  range.setStart(start, 0);
  range.setEnd(end, 0);
  var commonAncestorContainer = range.commonAncestorContainer;

  // Both nodes are inside #document

  if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
    if (isOffsetContainer(commonAncestorContainer)) {
      return commonAncestorContainer;
    }

    return getOffsetParent(commonAncestorContainer);
  }

  // one of the nodes is inside shadowDOM, find which one
  var element1root = getRoot(element1);
  if (element1root.host) {
    return findCommonOffsetParent(element1root.host, element2);
  } else {
    return findCommonOffsetParent(element1, getRoot(element2).host);
  }
}

/**
 * Gets the scroll value of the given element in the given side (top and left)
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {String} side `top` or `left`
 * @returns {number} amount of scrolled pixels
 */
function getScroll(element) {
  var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';

  var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
  var nodeName = element.nodeName;

  if (nodeName === 'BODY' || nodeName === 'HTML') {
    var html = window.document.documentElement;
    var scrollingElement = window.document.scrollingElement || html;
    return scrollingElement[upperSide];
  }

  return element[upperSide];
}

/*
 * Sum or subtract the element scroll values (left and top) from a given rect object
 * @method
 * @memberof Popper.Utils
 * @param {Object} rect - Rect object you want to change
 * @param {HTMLElement} element - The element from the function reads the scroll values
 * @param {Boolean} subtract - set to true if you want to subtract the scroll values
 * @return {Object} rect - The modifier rect object
 */
function includeScroll(rect, element) {
  var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  var scrollTop = getScroll(element, 'top');
  var scrollLeft = getScroll(element, 'left');
  var modifier = subtract ? -1 : 1;
  rect.top += scrollTop * modifier;
  rect.bottom += scrollTop * modifier;
  rect.left += scrollLeft * modifier;
  rect.right += scrollLeft * modifier;
  return rect;
}

/*
 * Helper to detect borders of a given element
 * @method
 * @memberof Popper.Utils
 * @param {CSSStyleDeclaration} styles
 * Result of `getStyleComputedProperty` on the given element
 * @param {String} axis - `x` or `y`
 * @return {number} borders - The borders size of the given axis
 */

function getBordersSize(styles, axis) {
  var sideA = axis === 'x' ? 'Left' : 'Top';
  var sideB = sideA === 'Left' ? 'Right' : 'Bottom';

  return +styles['border' + sideA + 'Width'].split('px')[0] + +styles['border' + sideB + 'Width'].split('px')[0];
}

/**
 * Tells if you are running Internet Explorer 10
 * @method
 * @memberof Popper.Utils
 * @returns {Boolean} isIE10
 */
var isIE10 = undefined;

var isIE10$1 = function () {
  if (isIE10 === undefined) {
    isIE10 = navigator.appVersion.indexOf('MSIE 10') !== -1;
  }
  return isIE10;
};

function getSize(axis, body, html, computedStyle) {
  return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE10$1() ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
}

function getWindowSizes() {
  var body = window.document.body;
  var html = window.document.documentElement;
  var computedStyle = isIE10$1() && window.getComputedStyle(html);

  return {
    height: getSize('Height', body, html, computedStyle),
    width: getSize('Width', body, html, computedStyle)
  };
}

var classCallCheck = function (instance, Constructor) {
  if (!(instance instanceof Constructor)) {
    throw new TypeError("Cannot call a class as a function");
  }
};

var createClass = function () {
  function defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  return function (Constructor, protoProps, staticProps) {
    if (protoProps) defineProperties(Constructor.prototype, protoProps);
    if (staticProps) defineProperties(Constructor, staticProps);
    return Constructor;
  };
}();





var defineProperty = function (obj, key, value) {
  if (key in obj) {
    Object.defineProperty(obj, key, {
      value: value,
      enumerable: true,
      configurable: true,
      writable: true
    });
  } else {
    obj[key] = value;
  }

  return obj;
};

var _extends = Object.assign || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};

/**
 * Given element offsets, generate an output similar to getBoundingClientRect
 * @method
 * @memberof Popper.Utils
 * @argument {Object} offsets
 * @returns {Object} ClientRect like output
 */
function getClientRect(offsets) {
  return _extends({}, offsets, {
    right: offsets.left + offsets.width,
    bottom: offsets.top + offsets.height
  });
}

/**
 * Get bounding client rect of given element
 * @method
 * @memberof Popper.Utils
 * @param {HTMLElement} element
 * @return {Object} client rect
 */
function getBoundingClientRect(element) {
  var rect = {};

  // IE10 10 FIX: Please, don't ask, the element isn't
  // considered in DOM in some circumstances...
  // This isn't reproducible in IE10 compatibility mode of IE11
  if (isIE10$1()) {
    try {
      rect = element.getBoundingClientRect();
      var scrollTop = getScroll(element, 'top');
      var scrollLeft = getScroll(element, 'left');
      rect.top += scrollTop;
      rect.left += scrollLeft;
      rect.bottom += scrollTop;
      rect.right += scrollLeft;
    } catch (err) {}
  } else {
    rect = element.getBoundingClientRect();
  }

  var result = {
    left: rect.left,
    top: rect.top,
    width: rect.right - rect.left,
    height: rect.bottom - rect.top
  };

  // subtract scrollbar size from sizes
  var sizes = element.nodeName === 'HTML' ? getWindowSizes() : {};
  var width = sizes.width || element.clientWidth || result.right - result.left;
  var height = sizes.height || element.clientHeight || result.bottom - result.top;

  var horizScrollbar = element.offsetWidth - width;
  var vertScrollbar = element.offsetHeight - height;

  // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
  // we make this check conditional for performance reasons
  if (horizScrollbar || vertScrollbar) {
    var styles = getStyleComputedProperty(element);
    horizScrollbar -= getBordersSize(styles, 'x');
    vertScrollbar -= getBordersSize(styles, 'y');

    result.width -= horizScrollbar;
    result.height -= vertScrollbar;
  }

  return getClientRect(result);
}

function getOffsetRectRelativeToArbitraryNode(children, parent) {
  var isIE10 = isIE10$1();
  var isHTML = parent.nodeName === 'HTML';
  var childrenRect = getBoundingClientRect(children);
  var parentRect = getBoundingClientRect(parent);
  var scrollParent = getScrollParent(children);

  var styles = getStyleComputedProperty(parent);
  var borderTopWidth = +styles.borderTopWidth.split('px')[0];
  var borderLeftWidth = +styles.borderLeftWidth.split('px')[0];

  var offsets = getClientRect({
    top: childrenRect.top - parentRect.top - borderTopWidth,
    left: childrenRect.left - parentRect.left - borderLeftWidth,
    width: childrenRect.width,
    height: childrenRect.height
  });
  offsets.marginTop = 0;
  offsets.marginLeft = 0;

  // Subtract margins of documentElement in case it's being used as parent
  // we do this only on HTML because it's the only element that behaves
  // differently when margins are applied to it. The margins are included in
  // the box of the documentElement, in the other cases not.
  if (!isIE10 && isHTML) {
    var marginTop = +styles.marginTop.split('px')[0];
    var marginLeft = +styles.marginLeft.split('px')[0];

    offsets.top -= borderTopWidth - marginTop;
    offsets.bottom -= borderTopWidth - marginTop;
    offsets.left -= borderLeftWidth - marginLeft;
    offsets.right -= borderLeftWidth - marginLeft;

    // Attach marginTop and marginLeft because in some circumstances we may need them
    offsets.marginTop = marginTop;
    offsets.marginLeft = marginLeft;
  }

  if (isIE10 ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
    offsets = includeScroll(offsets, parent);
  }

  return offsets;
}

function getViewportOffsetRectRelativeToArtbitraryNode(element) {
  var html = window.document.documentElement;
  var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
  var width = Math.max(html.clientWidth, window.innerWidth || 0);
  var height = Math.max(html.clientHeight, window.innerHeight || 0);

  var scrollTop = getScroll(html);
  var scrollLeft = getScroll(html, 'left');

  var offset = {
    top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
    left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
    width: width,
    height: height
  };

  return getClientRect(offset);
}

/**
 * Check if the given element is fixed or is inside a fixed parent
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {Element} customContainer
 * @returns {Boolean} answer to "isFixed?"
 */
function isFixed(element) {
  var nodeName = element.nodeName;
  if (nodeName === 'BODY' || nodeName === 'HTML') {
    return false;
  }
  if (getStyleComputedProperty(element, 'position') === 'fixed') {
    return true;
  }
  return isFixed(getParentNode(element));
}

/**
 * Computed the boundaries limits and return them
 * @method
 * @memberof Popper.Utils
 * @param {HTMLElement} popper
 * @param {HTMLElement} reference
 * @param {number} padding
 * @param {HTMLElement} boundariesElement - Element used to define the boundaries
 * @returns {Object} Coordinates of the boundaries
 */
function getBoundaries(popper, reference, padding, boundariesElement) {
  // NOTE: 1 DOM access here
  var boundaries = { top: 0, left: 0 };
  var offsetParent = findCommonOffsetParent(popper, reference);

  // Handle viewport case
  if (boundariesElement === 'viewport') {
    boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent);
  } else {
    // Handle other cases based on DOM element used as boundaries
    var boundariesNode = void 0;
    if (boundariesElement === 'scrollParent') {
      boundariesNode = getScrollParent(getParentNode(popper));
      if (boundariesNode.nodeName === 'BODY') {
        boundariesNode = window.document.documentElement;
      }
    } else if (boundariesElement === 'window') {
      boundariesNode = window.document.documentElement;
    } else {
      boundariesNode = boundariesElement;
    }

    var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent);

    // In case of HTML, we need a different computation
    if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
      var _getWindowSizes = getWindowSizes(),
          height = _getWindowSizes.height,
          width = _getWindowSizes.width;

      boundaries.top += offsets.top - offsets.marginTop;
      boundaries.bottom = height + offsets.top;
      boundaries.left += offsets.left - offsets.marginLeft;
      boundaries.right = width + offsets.left;
    } else {
      // for all the other DOM elements, this one is good
      boundaries = offsets;
    }
  }

  // Add paddings
  boundaries.left += padding;
  boundaries.top += padding;
  boundaries.right -= padding;
  boundaries.bottom -= padding;

  return boundaries;
}

function getArea(_ref) {
  var width = _ref.width,
      height = _ref.height;

  return width * height;
}

/**
 * Utility used to transform the `auto` placement to the placement with more
 * available space.
 * @method
 * @memberof Popper.Utils
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
  var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;

  if (placement.indexOf('auto') === -1) {
    return placement;
  }

  var boundaries = getBoundaries(popper, reference, padding, boundariesElement);

  var rects = {
    top: {
      width: boundaries.width,
      height: refRect.top - boundaries.top
    },
    right: {
      width: boundaries.right - refRect.right,
      height: boundaries.height
    },
    bottom: {
      width: boundaries.width,
      height: boundaries.bottom - refRect.bottom
    },
    left: {
      width: refRect.left - boundaries.left,
      height: boundaries.height
    }
  };

  var sortedAreas = Object.keys(rects).map(function (key) {
    return _extends({
      key: key
    }, rects[key], {
      area: getArea(rects[key])
    });
  }).sort(function (a, b) {
    return b.area - a.area;
  });

  var filteredAreas = sortedAreas.filter(function (_ref2) {
    var width = _ref2.width,
        height = _ref2.height;
    return width >= popper.clientWidth && height >= popper.clientHeight;
  });

  var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;

  var variation = placement.split('-')[1];

  return computedPlacement + (variation ? '-' + variation : '');
}

/**
 * Get offsets to the reference element
 * @method
 * @memberof Popper.Utils
 * @param {Object} state
 * @param {Element} popper - the popper element
 * @param {Element} reference - the reference element (the popper will be relative to this)
 * @returns {Object} An object containing the offsets which will be applied to the popper
 */
function getReferenceOffsets(state, popper, reference) {
  var commonOffsetParent = findCommonOffsetParent(popper, reference);
  return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent);
}

/**
 * Get the outer sizes of the given element (offset size + margins)
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Object} object containing width and height properties
 */
function getOuterSizes(element) {
  var styles = window.getComputedStyle(element);
  var x = parseFloat(styles.marginTop) + parseFloat(styles.marginBottom);
  var y = parseFloat(styles.marginLeft) + parseFloat(styles.marginRight);
  var result = {
    width: element.offsetWidth + y,
    height: element.offsetHeight + x
  };
  return result;
}

/**
 * Get the opposite placement of the given one
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement
 * @returns {String} flipped placement
 */
function getOppositePlacement(placement) {
  var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
  return placement.replace(/left|right|bottom|top/g, function (matched) {
    return hash[matched];
  });
}

/**
 * Get offsets to the popper
 * @method
 * @memberof Popper.Utils
 * @param {Object} position - CSS position the Popper will get applied
 * @param {HTMLElement} popper - the popper element
 * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
 * @param {String} placement - one of the valid placement options
 * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
 */
function getPopperOffsets(popper, referenceOffsets, placement) {
  placement = placement.split('-')[0];

  // Get popper node sizes
  var popperRect = getOuterSizes(popper);

  // Add position, width and height to our offsets object
  var popperOffsets = {
    width: popperRect.width,
    height: popperRect.height
  };

  // depending by the popper placement we have to compute its offsets slightly differently
  var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
  var mainSide = isHoriz ? 'top' : 'left';
  var secondarySide = isHoriz ? 'left' : 'top';
  var measurement = isHoriz ? 'height' : 'width';
  var secondaryMeasurement = !isHoriz ? 'height' : 'width';

  popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
  if (placement === secondarySide) {
    popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
  } else {
    popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
  }

  return popperOffsets;
}

/**
 * Mimics the `find` method of Array
 * @method
 * @memberof Popper.Utils
 * @argument {Array} arr
 * @argument prop
 * @argument value
 * @returns index or -1
 */
function find(arr, check) {
  // use native find if supported
  if (Array.prototype.find) {
    return arr.find(check);
  }

  // use `filter` to obtain the same behavior of `find`
  return arr.filter(check)[0];
}

/**
 * Return the index of the matching object
 * @method
 * @memberof Popper.Utils
 * @argument {Array} arr
 * @argument prop
 * @argument value
 * @returns index or -1
 */
function findIndex(arr, prop, value) {
  // use native findIndex if supported
  if (Array.prototype.findIndex) {
    return arr.findIndex(function (cur) {
      return cur[prop] === value;
    });
  }

  // use `find` + `indexOf` if `findIndex` isn't supported
  var match = find(arr, function (obj) {
    return obj[prop] === value;
  });
  return arr.indexOf(match);
}

/**
 * Loop trough the list of modifiers and run them in order,
 * each of them will then edit the data object.
 * @method
 * @memberof Popper.Utils
 * @param {dataObject} data
 * @param {Array} modifiers
 * @param {String} ends - Optional modifier name used as stopper
 * @returns {dataObject}
 */
function runModifiers(modifiers, data, ends) {
  var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));

  modifiersToRun.forEach(function (modifier) {
    if (modifier.function) {
      console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
    }
    var fn = modifier.function || modifier.fn;
    if (modifier.enabled && isFunction(fn)) {
      // Add properties to offsets to make them a complete clientRect object
      // we do this before each modifier to make sure the previous one doesn't
      // mess with these values
      data.offsets.popper = getClientRect(data.offsets.popper);
      data.offsets.reference = getClientRect(data.offsets.reference);

      data = fn(data, modifier);
    }
  });

  return data;
}

/**
 * Updates the position of the popper, computing the new offsets and applying
 * the new style.<br />
 * Prefer `scheduleUpdate` over `update` because of performance reasons.
 * @method
 * @memberof Popper
 */
function update() {
  // if popper is destroyed, don't perform any further update
  if (this.state.isDestroyed) {
    return;
  }

  var data = {
    instance: this,
    styles: {},
    arrowStyles: {},
    attributes: {},
    flipped: false,
    offsets: {}
  };

  // compute reference element offsets
  data.offsets.reference = getReferenceOffsets(this.state, this.popper, this.reference);

  // compute auto placement, store placement inside the data object,
  // modifiers will be able to edit `placement` if needed
  // and refer to originalPlacement to know the original value
  data.placement = computeAutoPlacement(this.options.placement, data.offsets.reference, this.popper, this.reference, this.options.modifiers.flip.boundariesElement, this.options.modifiers.flip.padding);

  // store the computed placement inside `originalPlacement`
  data.originalPlacement = data.placement;

  // compute the popper offsets
  data.offsets.popper = getPopperOffsets(this.popper, data.offsets.reference, data.placement);
  data.offsets.popper.position = 'absolute';

  // run the modifiers
  data = runModifiers(this.modifiers, data);

  // the first `update` will call `onCreate` callback
  // the other ones will call `onUpdate` callback
  if (!this.state.isCreated) {
    this.state.isCreated = true;
    this.options.onCreate(data);
  } else {
    this.options.onUpdate(data);
  }
}

/**
 * Helper used to know if the given modifier is enabled.
 * @method
 * @memberof Popper.Utils
 * @returns {Boolean}
 */
function isModifierEnabled(modifiers, modifierName) {
  return modifiers.some(function (_ref) {
    var name = _ref.name,
        enabled = _ref.enabled;
    return enabled && name === modifierName;
  });
}

/**
 * Get the prefixed supported property name
 * @method
 * @memberof Popper.Utils
 * @argument {String} property (camelCase)
 * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
 */
function getSupportedPropertyName(property) {
  var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
  var upperProp = property.charAt(0).toUpperCase() + property.slice(1);

  for (var i = 0; i < prefixes.length - 1; i++) {
    var prefix = prefixes[i];
    var toCheck = prefix ? '' + prefix + upperProp : property;
    if (typeof window.document.body.style[toCheck] !== 'undefined') {
      return toCheck;
    }
  }
  return null;
}

/**
 * Destroy the popper
 * @method
 * @memberof Popper
 */
function destroy() {
  this.state.isDestroyed = true;

  // touch DOM only if `applyStyle` modifier is enabled
  if (isModifierEnabled(this.modifiers, 'applyStyle')) {
    this.popper.removeAttribute('x-placement');
    this.popper.style.left = '';
    this.popper.style.position = '';
    this.popper.style.top = '';
    this.popper.style[getSupportedPropertyName('transform')] = '';
  }

  this.disableEventListeners();

  // remove the popper if user explicity asked for the deletion on destroy
  // do not use `remove` because IE11 doesn't support it
  if (this.options.removeOnDestroy) {
    this.popper.parentNode.removeChild(this.popper);
  }
  return this;
}

function attachToScrollParents(scrollParent, event, callback, scrollParents) {
  var isBody = scrollParent.nodeName === 'BODY';
  var target = isBody ? window : scrollParent;
  target.addEventListener(event, callback, { passive: true });

  if (!isBody) {
    attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
  }
  scrollParents.push(target);
}

/**
 * Setup needed event listeners used to update the popper position
 * @method
 * @memberof Popper.Utils
 * @private
 */
function setupEventListeners(reference, options, state, updateBound) {
  // Resize event listener on window
  state.updateBound = updateBound;
  window.addEventListener('resize', state.updateBound, { passive: true });

  // Scroll event listener on scroll parents
  var scrollElement = getScrollParent(reference);
  attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
  state.scrollElement = scrollElement;
  state.eventsEnabled = true;

  return state;
}

/**
 * It will add resize/scroll events and start recalculating
 * position of the popper element when they are triggered.
 * @method
 * @memberof Popper
 */
function enableEventListeners() {
  if (!this.state.eventsEnabled) {
    this.state = setupEventListeners(this.reference, this.options, this.state, this.scheduleUpdate);
  }
}

/**
 * Remove event listeners used to update the popper position
 * @method
 * @memberof Popper.Utils
 * @private
 */
function removeEventListeners(reference, state) {
  // Remove resize event listener on window
  window.removeEventListener('resize', state.updateBound);

  // Remove scroll event listener on scroll parents
  state.scrollParents.forEach(function (target) {
    target.removeEventListener('scroll', state.updateBound);
  });

  // Reset state
  state.updateBound = null;
  state.scrollParents = [];
  state.scrollElement = null;
  state.eventsEnabled = false;
  return state;
}

/**
 * It will remove resize/scroll events and won't recalculate popper position
 * when they are triggered. It also won't trigger onUpdate callback anymore,
 * unless you call `update` method manually.
 * @method
 * @memberof Popper
 */
function disableEventListeners() {
  if (this.state.eventsEnabled) {
    window.cancelAnimationFrame(this.scheduleUpdate);
    this.state = removeEventListeners(this.reference, this.state);
  }
}

/**
 * Tells if a given input is a number
 * @method
 * @memberof Popper.Utils
 * @param {*} input to check
 * @return {Boolean}
 */
function isNumeric(n) {
  return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
}

/**
 * Set the style to the given popper
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element - Element to apply the style to
 * @argument {Object} styles
 * Object with a list of properties and values which will be applied to the element
 */
function setStyles(element, styles) {
  Object.keys(styles).forEach(function (prop) {
    var unit = '';
    // add unit if the value is numeric and is one of the following
    if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
      unit = 'px';
    }
    element.style[prop] = styles[prop] + unit;
  });
}

/**
 * Set the attributes to the given popper
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element - Element to apply the attributes to
 * @argument {Object} styles
 * Object with a list of properties and values which will be applied to the element
 */
function setAttributes(element, attributes) {
  Object.keys(attributes).forEach(function (prop) {
    var value = attributes[prop];
    if (value !== false) {
      element.setAttribute(prop, attributes[prop]);
    } else {
      element.removeAttribute(prop);
    }
  });
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} data.styles - List of style properties - values to apply to popper element
 * @argument {Object} data.attributes - List of attribute properties - values to apply to popper element
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The same data object
 */
function applyStyle(data) {
  // any property present in `data.styles` will be applied to the popper,
  // in this way we can make the 3rd party modifiers add custom styles to it
  // Be aware, modifiers could override the properties defined in the previous
  // lines of this modifier!
  setStyles(data.instance.popper, data.styles);

  // any property present in `data.attributes` will be applied to the popper,
  // they will be set as HTML attributes of the element
  setAttributes(data.instance.popper, data.attributes);

  // if arrowElement is defined and arrowStyles has some properties
  if (data.arrowElement && Object.keys(data.arrowStyles).length) {
    setStyles(data.arrowElement, data.arrowStyles);
  }

  return data;
}

/**
 * Set the x-placement attribute before everything else because it could be used
 * to add margins to the popper margins needs to be calculated to get the
 * correct popper offsets.
 * @method
 * @memberof Popper.modifiers
 * @param {HTMLElement} reference - The reference element used to position the popper
 * @param {HTMLElement} popper - The HTML element used as popper.
 * @param {Object} options - Popper.js options
 */
function applyStyleOnLoad(reference, popper, options, modifierOptions, state) {
  // compute reference element offsets
  var referenceOffsets = getReferenceOffsets(state, popper, reference);

  // compute auto placement, store placement inside the data object,
  // modifiers will be able to edit `placement` if needed
  // and refer to originalPlacement to know the original value
  var placement = computeAutoPlacement(options.placement, referenceOffsets, popper, reference, options.modifiers.flip.boundariesElement, options.modifiers.flip.padding);

  popper.setAttribute('x-placement', placement);

  // Apply `position` to popper before anything else because
  // without the position applied we can't guarantee correct computations
  setStyles(popper, { position: 'absolute' });

  return options;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function computeStyle(data, options) {
  var x = options.x,
      y = options.y;
  var popper = data.offsets.popper;

  // Remove this legacy support in Popper.js v2

  var legacyGpuAccelerationOption = find(data.instance.modifiers, function (modifier) {
    return modifier.name === 'applyStyle';
  }).gpuAcceleration;
  if (legacyGpuAccelerationOption !== undefined) {
    console.warn('WARNING: `gpuAcceleration` option moved to `computeStyle` modifier and will not be supported in future versions of Popper.js!');
  }
  var gpuAcceleration = legacyGpuAccelerationOption !== undefined ? legacyGpuAccelerationOption : options.gpuAcceleration;

  var offsetParent = getOffsetParent(data.instance.popper);
  var offsetParentRect = getBoundingClientRect(offsetParent);

  // Styles
  var styles = {
    position: popper.position
  };

  // floor sides to avoid blurry text
  var offsets = {
    left: Math.floor(popper.left),
    top: Math.floor(popper.top),
    bottom: Math.floor(popper.bottom),
    right: Math.floor(popper.right)
  };

  var sideA = x === 'bottom' ? 'top' : 'bottom';
  var sideB = y === 'right' ? 'left' : 'right';

  // if gpuAcceleration is set to `true` and transform is supported,
  //  we use `translate3d` to apply the position to the popper we
  // automatically use the supported prefixed version if needed
  var prefixedProperty = getSupportedPropertyName('transform');

  // now, let's make a step back and look at this code closely (wtf?)
  // If the content of the popper grows once it's been positioned, it
  // may happen that the popper gets misplaced because of the new content
  // overflowing its reference element
  // To avoid this problem, we provide two options (x and y), which allow
  // the consumer to define the offset origin.
  // If we position a popper on top of a reference element, we can set
  // `x` to `top` to make the popper grow towards its top instead of
  // its bottom.
  var left = void 0,
      top = void 0;
  if (sideA === 'bottom') {
    top = -offsetParentRect.height + offsets.bottom;
  } else {
    top = offsets.top;
  }
  if (sideB === 'right') {
    left = -offsetParentRect.width + offsets.right;
  } else {
    left = offsets.left;
  }
  if (gpuAcceleration && prefixedProperty) {
    styles[prefixedProperty] = 'translate3d(' + left + 'px, ' + top + 'px, 0)';
    styles[sideA] = 0;
    styles[sideB] = 0;
    styles.willChange = 'transform';
  } else {
    // othwerise, we use the standard `top`, `left`, `bottom` and `right` properties
    var invertTop = sideA === 'bottom' ? -1 : 1;
    var invertLeft = sideB === 'right' ? -1 : 1;
    styles[sideA] = top * invertTop;
    styles[sideB] = left * invertLeft;
    styles.willChange = sideA + ', ' + sideB;
  }

  // Attributes
  var attributes = {
    'x-placement': data.placement
  };

  // Update `data` attributes, styles and arrowStyles
  data.attributes = _extends({}, attributes, data.attributes);
  data.styles = _extends({}, styles, data.styles);
  data.arrowStyles = _extends({}, data.offsets.arrow, data.arrowStyles);

  return data;
}

/**
 * Helper used to know if the given modifier depends from another one.<br />
 * It checks if the needed modifier is listed and enabled.
 * @method
 * @memberof Popper.Utils
 * @param {Array} modifiers - list of modifiers
 * @param {String} requestingName - name of requesting modifier
 * @param {String} requestedName - name of requested modifier
 * @returns {Boolean}
 */
function isModifierRequired(modifiers, requestingName, requestedName) {
  var requesting = find(modifiers, function (_ref) {
    var name = _ref.name;
    return name === requestingName;
  });

  var isRequired = !!requesting && modifiers.some(function (modifier) {
    return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
  });

  if (!isRequired) {
    var _requesting = '`' + requestingName + '`';
    var requested = '`' + requestedName + '`';
    console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
  }
  return isRequired;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function arrow(data, options) {
  // arrow depends on keepTogether in order to work
  if (!isModifierRequired(data.instance.modifiers, 'arrow', 'keepTogether')) {
    return data;
  }

  var arrowElement = options.element;

  // if arrowElement is a string, suppose it's a CSS selector
  if (typeof arrowElement === 'string') {
    arrowElement = data.instance.popper.querySelector(arrowElement);

    // if arrowElement is not found, don't run the modifier
    if (!arrowElement) {
      return data;
    }
  } else {
    // if the arrowElement isn't a query selector we must check that the
    // provided DOM node is child of its popper node
    if (!data.instance.popper.contains(arrowElement)) {
      console.warn('WARNING: `arrow.element` must be child of its popper element!');
      return data;
    }
  }

  var placement = data.placement.split('-')[0];
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var isVertical = ['left', 'right'].indexOf(placement) !== -1;

  var len = isVertical ? 'height' : 'width';
  var sideCapitalized = isVertical ? 'Top' : 'Left';
  var side = sideCapitalized.toLowerCase();
  var altSide = isVertical ? 'left' : 'top';
  var opSide = isVertical ? 'bottom' : 'right';
  var arrowElementSize = getOuterSizes(arrowElement)[len];

  //
  // extends keepTogether behavior making sure the popper and its
  // reference have enough pixels in conjuction
  //

  // top/left side
  if (reference[opSide] - arrowElementSize < popper[side]) {
    data.offsets.popper[side] -= popper[side] - (reference[opSide] - arrowElementSize);
  }
  // bottom/right side
  if (reference[side] + arrowElementSize > popper[opSide]) {
    data.offsets.popper[side] += reference[side] + arrowElementSize - popper[opSide];
  }

  // compute center of the popper
  var center = reference[side] + reference[len] / 2 - arrowElementSize / 2;

  // Compute the sideValue using the updated popper offsets
  // take popper margin in account because we don't have this info available
  var popperMarginSide = getStyleComputedProperty(data.instance.popper, 'margin' + sideCapitalized).replace('px', '');
  var sideValue = center - getClientRect(data.offsets.popper)[side] - popperMarginSide;

  // prevent arrowElement from being placed not contiguously to its popper
  sideValue = Math.max(Math.min(popper[len] - arrowElementSize, sideValue), 0);

  data.arrowElement = arrowElement;
  data.offsets.arrow = {};
  data.offsets.arrow[side] = Math.round(sideValue);
  data.offsets.arrow[altSide] = ''; // make sure to unset any eventual altSide value from the DOM node

  return data;
}

/**
 * Get the opposite placement variation of the given one
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement variation
 * @returns {String} flipped placement variation
 */
function getOppositeVariation(variation) {
  if (variation === 'end') {
    return 'start';
  } else if (variation === 'start') {
    return 'end';
  }
  return variation;
}

/**
 * List of accepted placements to use as values of the `placement` option.<br />
 * Valid placements are:
 * - `auto`
 * - `top`
 * - `right`
 * - `bottom`
 * - `left`
 *
 * Each placement can have a variation from this list:
 * - `-start`
 * - `-end`
 *
 * Variations are interpreted easily if you think of them as the left to right
 * written languages. Horizontally (`top` and `bottom`), `start` is left and `end`
 * is right.<br />
 * Vertically (`left` and `right`), `start` is top and `end` is bottom.
 *
 * Some valid examples are:
 * - `top-end` (on top of reference, right aligned)
 * - `right-start` (on right of reference, top aligned)
 * - `bottom` (on bottom, centered)
 * - `auto-right` (on the side with more space available, alignment depends by placement)
 *
 * @static
 * @type {Array}
 * @enum {String}
 * @readonly
 * @method placements
 * @memberof Popper
 */
var placements = ['auto-start', 'auto', 'auto-end', 'top-start', 'top', 'top-end', 'right-start', 'right', 'right-end', 'bottom-end', 'bottom', 'bottom-start', 'left-end', 'left', 'left-start'];

// Get rid of `auto` `auto-start` and `auto-end`
var validPlacements = placements.slice(3);

/**
 * Given an initial placement, returns all the subsequent placements
 * clockwise (or counter-clockwise).
 *
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement - A valid placement (it accepts variations)
 * @argument {Boolean} counter - Set to true to walk the placements counterclockwise
 * @returns {Array} placements including their variations
 */
function clockwise(placement) {
  var counter = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : false;

  var index = validPlacements.indexOf(placement);
  var arr = validPlacements.slice(index + 1).concat(validPlacements.slice(0, index));
  return counter ? arr.reverse() : arr;
}

var BEHAVIORS = {
  FLIP: 'flip',
  CLOCKWISE: 'clockwise',
  COUNTERCLOCKWISE: 'counterclockwise'
};

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function flip(data, options) {
  // if `inner` modifier is enabled, we can't use the `flip` modifier
  if (isModifierEnabled(data.instance.modifiers, 'inner')) {
    return data;
  }

  if (data.flipped && data.placement === data.originalPlacement) {
    // seems like flip is trying to loop, probably there's not enough space on any of the flippable sides
    return data;
  }

  var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, options.boundariesElement);

  var placement = data.placement.split('-')[0];
  var placementOpposite = getOppositePlacement(placement);
  var variation = data.placement.split('-')[1] || '';

  var flipOrder = [];

  switch (options.behavior) {
    case BEHAVIORS.FLIP:
      flipOrder = [placement, placementOpposite];
      break;
    case BEHAVIORS.CLOCKWISE:
      flipOrder = clockwise(placement);
      break;
    case BEHAVIORS.COUNTERCLOCKWISE:
      flipOrder = clockwise(placement, true);
      break;
    default:
      flipOrder = options.behavior;
  }

  flipOrder.forEach(function (step, index) {
    if (placement !== step || flipOrder.length === index + 1) {
      return data;
    }

    placement = data.placement.split('-')[0];
    placementOpposite = getOppositePlacement(placement);

    var popperOffsets = data.offsets.popper;
    var refOffsets = data.offsets.reference;

    // using floor because the reference offsets may contain decimals we are not going to consider here
    var floor = Math.floor;
    var overlapsRef = placement === 'left' && floor(popperOffsets.right) > floor(refOffsets.left) || placement === 'right' && floor(popperOffsets.left) < floor(refOffsets.right) || placement === 'top' && floor(popperOffsets.bottom) > floor(refOffsets.top) || placement === 'bottom' && floor(popperOffsets.top) < floor(refOffsets.bottom);

    var overflowsLeft = floor(popperOffsets.left) < floor(boundaries.left);
    var overflowsRight = floor(popperOffsets.right) > floor(boundaries.right);
    var overflowsTop = floor(popperOffsets.top) < floor(boundaries.top);
    var overflowsBottom = floor(popperOffsets.bottom) > floor(boundaries.bottom);

    var overflowsBoundaries = placement === 'left' && overflowsLeft || placement === 'right' && overflowsRight || placement === 'top' && overflowsTop || placement === 'bottom' && overflowsBottom;

    // flip the variation if required
    var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
    var flippedVariation = !!options.flipVariations && (isVertical && variation === 'start' && overflowsLeft || isVertical && variation === 'end' && overflowsRight || !isVertical && variation === 'start' && overflowsTop || !isVertical && variation === 'end' && overflowsBottom);

    if (overlapsRef || overflowsBoundaries || flippedVariation) {
      // this boolean to detect any flip loop
      data.flipped = true;

      if (overlapsRef || overflowsBoundaries) {
        placement = flipOrder[index + 1];
      }

      if (flippedVariation) {
        variation = getOppositeVariation(variation);
      }

      data.placement = placement + (variation ? '-' + variation : '');

      // this object contains `position`, we want to preserve it along with
      // any additional property we may add in the future
      data.offsets.popper = _extends({}, data.offsets.popper, getPopperOffsets(data.instance.popper, data.offsets.reference, data.placement));

      data = runModifiers(data.instance.modifiers, data, 'flip');
    }
  });
  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function keepTogether(data) {
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var placement = data.placement.split('-')[0];
  var floor = Math.floor;
  var isVertical = ['top', 'bottom'].indexOf(placement) !== -1;
  var side = isVertical ? 'right' : 'bottom';
  var opSide = isVertical ? 'left' : 'top';
  var measurement = isVertical ? 'width' : 'height';

  if (popper[side] < floor(reference[opSide])) {
    data.offsets.popper[opSide] = floor(reference[opSide]) - popper[measurement];
  }
  if (popper[opSide] > floor(reference[side])) {
    data.offsets.popper[opSide] = floor(reference[side]);
  }

  return data;
}

/**
 * Converts a string containing value + unit into a px value number
 * @function
 * @memberof {modifiers~offset}
 * @private
 * @argument {String} str - Value + unit string
 * @argument {String} measurement - `height` or `width`
 * @argument {Object} popperOffsets
 * @argument {Object} referenceOffsets
 * @returns {Number|String}
 * Value in pixels, or original string if no values were extracted
 */
function toValue(str, measurement, popperOffsets, referenceOffsets) {
  // separate value from unit
  var split = str.match(/((?:\-|\+)?\d*\.?\d*)(.*)/);
  var value = +split[1];
  var unit = split[2];

  // If it's not a number it's an operator, I guess
  if (!value) {
    return str;
  }

  if (unit.indexOf('%') === 0) {
    var element = void 0;
    switch (unit) {
      case '%p':
        element = popperOffsets;
        break;
      case '%':
      case '%r':
      default:
        element = referenceOffsets;
    }

    var rect = getClientRect(element);
    return rect[measurement] / 100 * value;
  } else if (unit === 'vh' || unit === 'vw') {
    // if is a vh or vw, we calculate the size based on the viewport
    var size = void 0;
    if (unit === 'vh') {
      size = Math.max(document.documentElement.clientHeight, window.innerHeight || 0);
    } else {
      size = Math.max(document.documentElement.clientWidth, window.innerWidth || 0);
    }
    return size / 100 * value;
  } else {
    // if is an explicit pixel unit, we get rid of the unit and keep the value
    // if is an implicit unit, it's px, and we return just the value
    return value;
  }
}

/**
 * Parse an `offset` string to extrapolate `x` and `y` numeric offsets.
 * @function
 * @memberof {modifiers~offset}
 * @private
 * @argument {String} offset
 * @argument {Object} popperOffsets
 * @argument {Object} referenceOffsets
 * @argument {String} basePlacement
 * @returns {Array} a two cells array with x and y offsets in numbers
 */
function parseOffset(offset, popperOffsets, referenceOffsets, basePlacement) {
  var offsets = [0, 0];

  // Use height if placement is left or right and index is 0 otherwise use width
  // in this way the first offset will use an axis and the second one
  // will use the other one
  var useHeight = ['right', 'left'].indexOf(basePlacement) !== -1;

  // Split the offset string to obtain a list of values and operands
  // The regex addresses values with the plus or minus sign in front (+10, -20, etc)
  var fragments = offset.split(/(\+|\-)/).map(function (frag) {
    return frag.trim();
  });

  // Detect if the offset string contains a pair of values or a single one
  // they could be separated by comma or space
  var divider = fragments.indexOf(find(fragments, function (frag) {
    return frag.search(/,|\s/) !== -1;
  }));

  if (fragments[divider] && fragments[divider].indexOf(',') === -1) {
    console.warn('Offsets separated by white space(s) are deprecated, use a comma (,) instead.');
  }

  // If divider is found, we divide the list of values and operands to divide
  // them by ofset X and Y.
  var splitRegex = /\s*,\s*|\s+/;
  var ops = divider !== -1 ? [fragments.slice(0, divider).concat([fragments[divider].split(splitRegex)[0]]), [fragments[divider].split(splitRegex)[1]].concat(fragments.slice(divider + 1))] : [fragments];

  // Convert the values with units to absolute pixels to allow our computations
  ops = ops.map(function (op, index) {
    // Most of the units rely on the orientation of the popper
    var measurement = (index === 1 ? !useHeight : useHeight) ? 'height' : 'width';
    var mergeWithPrevious = false;
    return op
    // This aggregates any `+` or `-` sign that aren't considered operators
    // e.g.: 10 + +5 => [10, +, +5]
    .reduce(function (a, b) {
      if (a[a.length - 1] === '' && ['+', '-'].indexOf(b) !== -1) {
        a[a.length - 1] = b;
        mergeWithPrevious = true;
        return a;
      } else if (mergeWithPrevious) {
        a[a.length - 1] += b;
        mergeWithPrevious = false;
        return a;
      } else {
        return a.concat(b);
      }
    }, [])
    // Here we convert the string values into number values (in px)
    .map(function (str) {
      return toValue(str, measurement, popperOffsets, referenceOffsets);
    });
  });

  // Loop trough the offsets arrays and execute the operations
  ops.forEach(function (op, index) {
    op.forEach(function (frag, index2) {
      if (isNumeric(frag)) {
        offsets[index] += frag * (op[index2 - 1] === '-' ? -1 : 1);
      }
    });
  });
  return offsets;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @argument {Number|String} options.offset=0
 * The offset value as described in the modifier description
 * @returns {Object} The data object, properly modified
 */
function offset(data, _ref) {
  var offset = _ref.offset;
  var placement = data.placement,
      _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var basePlacement = placement.split('-')[0];

  var offsets = void 0;
  if (isNumeric(+offset)) {
    offsets = [+offset, 0];
  } else {
    offsets = parseOffset(offset, popper, reference, basePlacement);
  }

  if (basePlacement === 'left') {
    popper.top += offsets[0];
    popper.left -= offsets[1];
  } else if (basePlacement === 'right') {
    popper.top += offsets[0];
    popper.left += offsets[1];
  } else if (basePlacement === 'top') {
    popper.left += offsets[0];
    popper.top -= offsets[1];
  } else if (basePlacement === 'bottom') {
    popper.left += offsets[0];
    popper.top += offsets[1];
  }

  data.popper = popper;
  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function preventOverflow(data, options) {
  var boundariesElement = options.boundariesElement || getOffsetParent(data.instance.popper);

  // If offsetParent is the reference element, we really want to
  // go one step up and use the next offsetParent as reference to
  // avoid to make this modifier completely useless and look like broken
  if (data.instance.reference === boundariesElement) {
    boundariesElement = getOffsetParent(boundariesElement);
  }

  var boundaries = getBoundaries(data.instance.popper, data.instance.reference, options.padding, boundariesElement);
  options.boundaries = boundaries;

  var order = options.priority;
  var popper = data.offsets.popper;

  var check = {
    primary: function primary(placement) {
      var value = popper[placement];
      if (popper[placement] < boundaries[placement] && !options.escapeWithReference) {
        value = Math.max(popper[placement], boundaries[placement]);
      }
      return defineProperty({}, placement, value);
    },
    secondary: function secondary(placement) {
      var mainSide = placement === 'right' ? 'left' : 'top';
      var value = popper[mainSide];
      if (popper[placement] > boundaries[placement] && !options.escapeWithReference) {
        value = Math.min(popper[mainSide], boundaries[placement] - (placement === 'right' ? popper.width : popper.height));
      }
      return defineProperty({}, mainSide, value);
    }
  };

  order.forEach(function (placement) {
    var side = ['left', 'top'].indexOf(placement) !== -1 ? 'primary' : 'secondary';
    popper = _extends({}, popper, check[side](placement));
  });

  data.offsets.popper = popper;

  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function shift(data) {
  var placement = data.placement;
  var basePlacement = placement.split('-')[0];
  var shiftvariation = placement.split('-')[1];

  // if shift shiftvariation is specified, run the modifier
  if (shiftvariation) {
    var _data$offsets = data.offsets,
        reference = _data$offsets.reference,
        popper = _data$offsets.popper;

    var isVertical = ['bottom', 'top'].indexOf(basePlacement) !== -1;
    var side = isVertical ? 'left' : 'top';
    var measurement = isVertical ? 'width' : 'height';

    var shiftOffsets = {
      start: defineProperty({}, side, reference[side]),
      end: defineProperty({}, side, reference[side] + reference[measurement] - popper[measurement])
    };

    data.offsets.popper = _extends({}, popper, shiftOffsets[shiftvariation]);
  }

  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function hide(data) {
  if (!isModifierRequired(data.instance.modifiers, 'hide', 'preventOverflow')) {
    return data;
  }

  var refRect = data.offsets.reference;
  var bound = find(data.instance.modifiers, function (modifier) {
    return modifier.name === 'preventOverflow';
  }).boundaries;

  if (refRect.bottom < bound.top || refRect.left > bound.right || refRect.top > bound.bottom || refRect.right < bound.left) {
    // Avoid unnecessary DOM access if visibility hasn't changed
    if (data.hide === true) {
      return data;
    }

    data.hide = true;
    data.attributes['x-out-of-boundaries'] = '';
  } else {
    // Avoid unnecessary DOM access if visibility hasn't changed
    if (data.hide === false) {
      return data;
    }

    data.hide = false;
    data.attributes['x-out-of-boundaries'] = false;
  }

  return data;
}

/**
 * @function
 * @memberof Modifiers
 * @argument {Object} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function inner(data) {
  var placement = data.placement;
  var basePlacement = placement.split('-')[0];
  var _data$offsets = data.offsets,
      popper = _data$offsets.popper,
      reference = _data$offsets.reference;

  var isHoriz = ['left', 'right'].indexOf(basePlacement) !== -1;

  var subtractLength = ['top', 'left'].indexOf(basePlacement) === -1;

  popper[isHoriz ? 'left' : 'top'] = reference[basePlacement] - (subtractLength ? popper[isHoriz ? 'width' : 'height'] : 0);

  data.placement = getOppositePlacement(placement);
  data.offsets.popper = getClientRect(popper);

  return data;
}

/**
 * Modifier function, each modifier can have a function of this type assigned
 * to its `fn` property.<br />
 * These functions will be called on each update, this means that you must
 * make sure they are performant enough to avoid performance bottlenecks.
 *
 * @function ModifierFn
 * @argument {dataObject} data - The data object generated by `update` method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {dataObject} The data object, properly modified
 */

/**
 * Modifiers are plugins used to alter the behavior of your poppers.<br />
 * Popper.js uses a set of 9 modifiers to provide all the basic functionalities
 * needed by the library.
 *
 * Usually you don't want to override the `order`, `fn` and `onLoad` props.
 * All the other properties are configurations that could be tweaked.
 * @namespace modifiers
 */
var modifiers = {
  /**
   * Modifier used to shift the popper on the start or end of its reference
   * element.<br />
   * It will read the variation of the `placement` property.<br />
   * It can be one either `-end` or `-start`.
   * @memberof modifiers
   * @inner
   */
  shift: {
    /** @prop {number} order=100 - Index used to define the order of execution */
    order: 100,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: shift
  },

  /**
   * The `offset` modifier can shift your popper on both its axis.
   *
   * It accepts the following units:
   * - `px` or unitless, interpreted as pixels
   * - `%` or `%r`, percentage relative to the length of the reference element
   * - `%p`, percentage relative to the length of the popper element
   * - `vw`, CSS viewport width unit
   * - `vh`, CSS viewport height unit
   *
   * For length is intended the main axis relative to the placement of the popper.<br />
   * This means that if the placement is `top` or `bottom`, the length will be the
   * `width`. In case of `left` or `right`, it will be the height.
   *
   * You can provide a single value (as `Number` or `String`), or a pair of values
   * as `String` divided by a comma or one (or more) white spaces.<br />
   * The latter is a deprecated method because it leads to confusion and will be
   * removed in v2.<br />
   * Additionally, it accepts additions and subtractions between different units.
   * Note that multiplications and divisions aren't supported.
   *
   * Valid examples are:
   * ```
   * 10
   * '10%'
   * '10, 10'
   * '10%, 10'
   * '10 + 10%'
   * '10 - 5vh + 3%'
   * '-10px + 5vh, 5px - 6%'
   * ```
   * > **NB**: If you desire to apply offsets to your poppers in a way that may make them overlap
   * > with their reference element, unfortunately, you will have to disable the `flip` modifier.
   * > More on this [reading this issue](https://github.com/FezVrasta/popper.js/issues/373)
   *
   * @memberof modifiers
   * @inner
   */
  offset: {
    /** @prop {number} order=200 - Index used to define the order of execution */
    order: 200,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: offset,
    /** @prop {Number|String} offset=0
     * The offset value as described in the modifier description
     */
    offset: 0
  },

  /**
   * Modifier used to prevent the popper from being positioned outside the boundary.
   *
   * An scenario exists where the reference itself is not within the boundaries.<br />
   * We can say it has "escaped the boundaries" — or just "escaped".<br />
   * In this case we need to decide whether the popper should either:
   *
   * - detach from the reference and remain "trapped" in the boundaries, or
   * - if it should ignore the boundary and "escape with its reference"
   *
   * When `escapeWithReference` is set to`true` and reference is completely
   * outside its boundaries, the popper will overflow (or completely leave)
   * the boundaries in order to remain attached to the edge of the reference.
   *
   * @memberof modifiers
   * @inner
   */
  preventOverflow: {
    /** @prop {number} order=300 - Index used to define the order of execution */
    order: 300,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: preventOverflow,
    /**
     * @prop {Array} [priority=['left','right','top','bottom']]
     * Popper will try to prevent overflow following these priorities by default,
     * then, it could overflow on the left and on top of the `boundariesElement`
     */
    priority: ['left', 'right', 'top', 'bottom'],
    /**
     * @prop {number} padding=5
     * Amount of pixel used to define a minimum distance between the boundaries
     * and the popper this makes sure the popper has always a little padding
     * between the edges of its container
     */
    padding: 5,
    /**
     * @prop {String|HTMLElement} boundariesElement='scrollParent'
     * Boundaries used by the modifier, can be `scrollParent`, `window`,
     * `viewport` or any DOM element.
     */
    boundariesElement: 'scrollParent'
  },

  /**
   * Modifier used to make sure the reference and its popper stay near eachothers
   * without leaving any gap between the two. Expecially useful when the arrow is
   * enabled and you want to assure it to point to its reference element.
   * It cares only about the first axis, you can still have poppers with margin
   * between the popper and its reference element.
   * @memberof modifiers
   * @inner
   */
  keepTogether: {
    /** @prop {number} order=400 - Index used to define the order of execution */
    order: 400,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: keepTogether
  },

  /**
   * This modifier is used to move the `arrowElement` of the popper to make
   * sure it is positioned between the reference element and its popper element.
   * It will read the outer size of the `arrowElement` node to detect how many
   * pixels of conjuction are needed.
   *
   * It has no effect if no `arrowElement` is provided.
   * @memberof modifiers
   * @inner
   */
  arrow: {
    /** @prop {number} order=500 - Index used to define the order of execution */
    order: 500,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: arrow,
    /** @prop {String|HTMLElement} element='[x-arrow]' - Selector or node used as arrow */
    element: '[x-arrow]'
  },

  /**
   * Modifier used to flip the popper's placement when it starts to overlap its
   * reference element.
   *
   * Requires the `preventOverflow` modifier before it in order to work.
   *
   * **NOTE:** this modifier will interrupt the current update cycle and will
   * restart it if it detects the need to flip the placement.
   * @memberof modifiers
   * @inner
   */
  flip: {
    /** @prop {number} order=600 - Index used to define the order of execution */
    order: 600,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: flip,
    /**
     * @prop {String|Array} behavior='flip'
     * The behavior used to change the popper's placement. It can be one of
     * `flip`, `clockwise`, `counterclockwise` or an array with a list of valid
     * placements (with optional variations).
     */
    behavior: 'flip',
    /**
     * @prop {number} padding=5
     * The popper will flip if it hits the edges of the `boundariesElement`
     */
    padding: 5,
    /**
     * @prop {String|HTMLElement} boundariesElement='viewport'
     * The element which will define the boundaries of the popper position,
     * the popper will never be placed outside of the defined boundaries
     * (except if keepTogether is enabled)
     */
    boundariesElement: 'viewport'
  },

  /**
   * Modifier used to make the popper flow toward the inner of the reference element.
   * By default, when this modifier is disabled, the popper will be placed outside
   * the reference element.
   * @memberof modifiers
   * @inner
   */
  inner: {
    /** @prop {number} order=700 - Index used to define the order of execution */
    order: 700,
    /** @prop {Boolean} enabled=false - Whether the modifier is enabled or not */
    enabled: false,
    /** @prop {ModifierFn} */
    fn: inner
  },

  /**
   * Modifier used to hide the popper when its reference element is outside of the
   * popper boundaries. It will set a `x-out-of-boundaries` attribute which can
   * be used to hide with a CSS selector the popper when its reference is
   * out of boundaries.
   *
   * Requires the `preventOverflow` modifier before it in order to work.
   * @memberof modifiers
   * @inner
   */
  hide: {
    /** @prop {number} order=800 - Index used to define the order of execution */
    order: 800,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: hide
  },

  /**
   * Computes the style that will be applied to the popper element to gets
   * properly positioned.
   *
   * Note that this modifier will not touch the DOM, it just prepares the styles
   * so that `applyStyle` modifier can apply it. This separation is useful
   * in case you need to replace `applyStyle` with a custom implementation.
   *
   * This modifier has `850` as `order` value to maintain backward compatibility
   * with previous versions of Popper.js. Expect the modifiers ordering method
   * to change in future major versions of the library.
   *
   * @memberof modifiers
   * @inner
   */
  computeStyle: {
    /** @prop {number} order=850 - Index used to define the order of execution */
    order: 850,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: computeStyle,
    /**
     * @prop {Boolean} gpuAcceleration=true
     * If true, it uses the CSS 3d transformation to position the popper.
     * Otherwise, it will use the `top` and `left` properties.
     */
    gpuAcceleration: true,
    /**
     * @prop {string} [x='bottom']
     * Where to anchor the X axis (`bottom` or `top`). AKA X offset origin.
     * Change this if your popper should grow in a direction different from `bottom`
     */
    x: 'bottom',
    /**
     * @prop {string} [x='left']
     * Where to anchor the Y axis (`left` or `right`). AKA Y offset origin.
     * Change this if your popper should grow in a direction different from `right`
     */
    y: 'right'
  },

  /**
   * Applies the computed styles to the popper element.
   *
   * All the DOM manipulations are limited to this modifier. This is useful in case
   * you want to integrate Popper.js inside a framework or view library and you
   * want to delegate all the DOM manipulations to it.
   *
   * Note that if you disable this modifier, you must make sure the popper element
   * has its position set to `absolute` before Popper.js can do its work!
   *
   * Just disable this modifier and define you own to achieve the desired effect.
   *
   * @memberof modifiers
   * @inner
   */
  applyStyle: {
    /** @prop {number} order=900 - Index used to define the order of execution */
    order: 900,
    /** @prop {Boolean} enabled=true - Whether the modifier is enabled or not */
    enabled: true,
    /** @prop {ModifierFn} */
    fn: applyStyle,
    /** @prop {Function} */
    onLoad: applyStyleOnLoad,
    /**
     * @deprecated since version 1.10.0, the property moved to `computeStyle` modifier
     * @prop {Boolean} gpuAcceleration=true
     * If true, it uses the CSS 3d transformation to position the popper.
     * Otherwise, it will use the `top` and `left` properties.
     */
    gpuAcceleration: undefined
  }
};

/**
 * The `dataObject` is an object containing all the informations used by Popper.js
 * this object get passed to modifiers and to the `onCreate` and `onUpdate` callbacks.
 * @name dataObject
 * @property {Object} data.instance The Popper.js instance
 * @property {String} data.placement Placement applied to popper
 * @property {String} data.originalPlacement Placement originally defined on init
 * @property {Boolean} data.flipped True if popper has been flipped by flip modifier
 * @property {Boolean} data.hide True if the reference element is out of boundaries, useful to know when to hide the popper.
 * @property {HTMLElement} data.arrowElement Node used as arrow by arrow modifier
 * @property {Object} data.styles Any CSS property defined here will be applied to the popper, it expects the JavaScript nomenclature (eg. `marginBottom`)
 * @property {Object} data.arrowStyles Any CSS property defined here will be applied to the popper arrow, it expects the JavaScript nomenclature (eg. `marginBottom`)
 * @property {Object} data.boundaries Offsets of the popper boundaries
 * @property {Object} data.offsets The measurements of popper, reference and arrow elements.
 * @property {Object} data.offsets.popper `top`, `left`, `width`, `height` values
 * @property {Object} data.offsets.reference `top`, `left`, `width`, `height` values
 * @property {Object} data.offsets.arrow] `top` and `left` offsets, only one of them will be different from 0
 */

/**
 * Default options provided to Popper.js constructor.<br />
 * These can be overriden using the `options` argument of Popper.js.<br />
 * To override an option, simply pass as 3rd argument an object with the same
 * structure of this object, example:
 * ```
 * new Popper(ref, pop, {
 *   modifiers: {
 *     preventOverflow: { enabled: false }
 *   }
 * })
 * ```
 * @type {Object}
 * @static
 * @memberof Popper
 */
var Defaults = {
  /**
   * Popper's placement
   * @prop {Popper.placements} placement='bottom'
   */
  placement: 'bottom',

  /**
   * Whether events (resize, scroll) are initially enabled
   * @prop {Boolean} eventsEnabled=true
   */
  eventsEnabled: true,

  /**
   * Set to true if you want to automatically remove the popper when
   * you call the `destroy` method.
   * @prop {Boolean} removeOnDestroy=false
   */
  removeOnDestroy: false,

  /**
   * Callback called when the popper is created.<br />
   * By default, is set to no-op.<br />
   * Access Popper.js instance with `data.instance`.
   * @prop {onCreate}
   */
  onCreate: function onCreate() {},

  /**
   * Callback called when the popper is updated, this callback is not called
   * on the initialization/creation of the popper, but only on subsequent
   * updates.<br />
   * By default, is set to no-op.<br />
   * Access Popper.js instance with `data.instance`.
   * @prop {onUpdate}
   */
  onUpdate: function onUpdate() {},

  /**
   * List of modifiers used to modify the offsets before they are applied to the popper.
   * They provide most of the functionalities of Popper.js
   * @prop {modifiers}
   */
  modifiers: modifiers
};

/**
 * @callback onCreate
 * @param {dataObject} data
 */

/**
 * @callback onUpdate
 * @param {dataObject} data
 */

// Utils
// Methods
var Popper = function () {
  /**
   * Create a new Popper.js instance
   * @class Popper
   * @param {HTMLElement|referenceObject} reference - The reference element used to position the popper
   * @param {HTMLElement} popper - The HTML element used as popper.
   * @param {Object} options - Your custom options to override the ones defined in [Defaults](#defaults)
   * @return {Object} instance - The generated Popper.js instance
   */
  function Popper(reference, popper) {
    var _this = this;

    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    classCallCheck(this, Popper);

    this.scheduleUpdate = function () {
      return requestAnimationFrame(_this.update);
    };

    // make update() debounced, so that it only runs at most once-per-tick
    this.update = debounce(this.update.bind(this));

    // with {} we create a new object with the options inside it
    this.options = _extends({}, Popper.Defaults, options);

    // init state
    this.state = {
      isDestroyed: false,
      isCreated: false,
      scrollParents: []
    };

    // get reference and popper elements (allow jQuery wrappers)
    this.reference = reference.jquery ? reference[0] : reference;
    this.popper = popper.jquery ? popper[0] : popper;

    // Deep merge modifiers options
    this.options.modifiers = {};
    Object.keys(_extends({}, Popper.Defaults.modifiers, options.modifiers)).forEach(function (name) {
      _this.options.modifiers[name] = _extends({}, Popper.Defaults.modifiers[name] || {}, options.modifiers ? options.modifiers[name] : {});
    });

    // Refactoring modifiers' list (Object => Array)
    this.modifiers = Object.keys(this.options.modifiers).map(function (name) {
      return _extends({
        name: name
      }, _this.options.modifiers[name]);
    })
    // sort the modifiers by order
    .sort(function (a, b) {
      return a.order - b.order;
    });

    // modifiers have the ability to execute arbitrary code when Popper.js get inited
    // such code is executed in the same order of its modifier
    // they could add new properties to their options configuration
    // BE AWARE: don't add options to `options.modifiers.name` but to `modifierOptions`!
    this.modifiers.forEach(function (modifierOptions) {
      if (modifierOptions.enabled && isFunction(modifierOptions.onLoad)) {
        modifierOptions.onLoad(_this.reference, _this.popper, _this.options, modifierOptions, _this.state);
      }
    });

    // fire the first update to position the popper in the right place
    this.update();

    var eventsEnabled = this.options.eventsEnabled;
    if (eventsEnabled) {
      // setup event listeners, they will take care of update the position in specific situations
      this.enableEventListeners();
    }

    this.state.eventsEnabled = eventsEnabled;
  }

  // We can't use class properties because they don't get listed in the
  // class prototype and break stuff like Sinon stubs


  createClass(Popper, [{
    key: 'update',
    value: function update$$1() {
      return update.call(this);
    }
  }, {
    key: 'destroy',
    value: function destroy$$1() {
      return destroy.call(this);
    }
  }, {
    key: 'enableEventListeners',
    value: function enableEventListeners$$1() {
      return enableEventListeners.call(this);
    }
  }, {
    key: 'disableEventListeners',
    value: function disableEventListeners$$1() {
      return disableEventListeners.call(this);
    }

    /**
     * Schedule an update, it will run on the next UI update available
     * @method scheduleUpdate
     * @memberof Popper
     */


    /**
     * Collection of utilities useful when writing custom modifiers.
     * Starting from version 1.7, this method is available only if you
     * include `popper-utils.js` before `popper.js`.
     *
     * **DEPRECATION**: This way to access PopperUtils is deprecated
     * and will be removed in v2! Use the PopperUtils module directly instead.
     * Due to the high instability of the methods contained in Utils, we can't
     * guarantee them to follow semver. Use them at your own risk!
     * @static
     * @private
     * @type {Object}
     * @deprecated since version 1.8
     * @member Utils
     * @memberof Popper
     */

  }]);
  return Popper;
}();

/**
 * The `referenceObject` is an object that provides an interface compatible with Popper.js
 * and lets you use it as replacement of a real DOM node.<br />
 * You can use this method to position a popper relatively to a set of coordinates
 * in case you don't have a DOM node to use as reference.
 *
 * ```
 * new Popper(referenceObject, popperNode);
 * ```
 *
 * NB: This feature isn't supported in Internet Explorer 10
 * @name referenceObject
 * @property {Function} data.getBoundingClientRect
 * A function that returns a set of coordinates compatible with the native `getBoundingClientRect` method.
 * @property {number} data.clientWidth
 * An ES6 getter that will return the width of the virtual reference element.
 * @property {number} data.clientHeight
 * An ES6 getter that will return the height of the virtual reference element.
 */


Popper.Utils = (typeof window !== 'undefined' ? window : global).PopperUtils;
Popper.placements = placements;
Popper.Defaults = Defaults;

return Popper;

})));
//# sourceMappingURL=popper.js.map

/**!
 * @fileOverview Kickass library to create and place poppers near their reference elements.
 * @version 1.12.5
 * @license
 * Copyright (c) 2016 Federico Zivolo and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.PopperUtils = global.PopperUtils || {})));
}(this, (function (exports) { 'use strict';

/**
 * Get CSS computed property of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Eement} element
 * @argument {String} property
 */
function getStyleComputedProperty(element, property) {
  if (element.nodeType !== 1) {
    return [];
  }
  // NOTE: 1 DOM access here
  var css = window.getComputedStyle(element, null);
  return property ? css[property] : css;
}

/**
 * Returns the parentNode or the host of the element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} parent
 */
function getParentNode(element) {
  if (element.nodeName === 'HTML') {
    return element;
  }
  return element.parentNode || element.host;
}

/**
 * Returns the scrolling parent of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} scroll parent
 */
function getScrollParent(element) {
  // Return body, `getScroll` will take care to get the correct `scrollTop` from it
  if (!element || ['HTML', 'BODY', '#document'].indexOf(element.nodeName) !== -1) {
    return window.document.body;
  }

  // Firefox want us to check `-x` and `-y` variations as well

  var _getStyleComputedProp = getStyleComputedProperty(element),
      overflow = _getStyleComputedProp.overflow,
      overflowX = _getStyleComputedProp.overflowX,
      overflowY = _getStyleComputedProp.overflowY;

  if (/(auto|scroll)/.test(overflow + overflowY + overflowX)) {
    return element;
  }

  return getScrollParent(getParentNode(element));
}

/**
 * Returns the offset parent of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Element} offset parent
 */
function getOffsetParent(element) {
  // NOTE: 1 DOM access here
  var offsetParent = element && element.offsetParent;
  var nodeName = offsetParent && offsetParent.nodeName;

  if (!nodeName || nodeName === 'BODY' || nodeName === 'HTML') {
    return window.document.documentElement;
  }

  // .offsetParent will return the closest TD or TABLE in case
  // no offsetParent is present, I hate this job...
  if (['TD', 'TABLE'].indexOf(offsetParent.nodeName) !== -1 && getStyleComputedProperty(offsetParent, 'position') === 'static') {
    return getOffsetParent(offsetParent);
  }

  return offsetParent;
}

function isOffsetContainer(element) {
  var nodeName = element.nodeName;

  if (nodeName === 'BODY') {
    return false;
  }
  return nodeName === 'HTML' || getOffsetParent(element.firstElementChild) === element;
}

/**
 * Finds the root node (document, shadowDOM root) of the given element
 * @method
 * @memberof Popper.Utils
 * @argument {Element} node
 * @returns {Element} root node
 */
function getRoot(node) {
  if (node.parentNode !== null) {
    return getRoot(node.parentNode);
  }

  return node;
}

/**
 * Finds the offset parent common to the two provided nodes
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element1
 * @argument {Element} element2
 * @returns {Element} common offset parent
 */
function findCommonOffsetParent(element1, element2) {
  // This check is needed to avoid errors in case one of the elements isn't defined for any reason
  if (!element1 || !element1.nodeType || !element2 || !element2.nodeType) {
    return window.document.documentElement;
  }

  // Here we make sure to give as "start" the element that comes first in the DOM
  var order = element1.compareDocumentPosition(element2) & Node.DOCUMENT_POSITION_FOLLOWING;
  var start = order ? element1 : element2;
  var end = order ? element2 : element1;

  // Get common ancestor container
  var range = document.createRange();
  range.setStart(start, 0);
  range.setEnd(end, 0);
  var commonAncestorContainer = range.commonAncestorContainer;

  // Both nodes are inside #document

  if (element1 !== commonAncestorContainer && element2 !== commonAncestorContainer || start.contains(end)) {
    if (isOffsetContainer(commonAncestorContainer)) {
      return commonAncestorContainer;
    }

    return getOffsetParent(commonAncestorContainer);
  }

  // one of the nodes is inside shadowDOM, find which one
  var element1root = getRoot(element1);
  if (element1root.host) {
    return findCommonOffsetParent(element1root.host, element2);
  } else {
    return findCommonOffsetParent(element1, getRoot(element2).host);
  }
}

/**
 * Gets the scroll value of the given element in the given side (top and left)
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {String} side `top` or `left`
 * @returns {number} amount of scrolled pixels
 */
function getScroll(element) {
  var side = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : 'top';

  var upperSide = side === 'top' ? 'scrollTop' : 'scrollLeft';
  var nodeName = element.nodeName;

  if (nodeName === 'BODY' || nodeName === 'HTML') {
    var html = window.document.documentElement;
    var scrollingElement = window.document.scrollingElement || html;
    return scrollingElement[upperSide];
  }

  return element[upperSide];
}

/*
 * Sum or subtract the element scroll values (left and top) from a given rect object
 * @method
 * @memberof Popper.Utils
 * @param {Object} rect - Rect object you want to change
 * @param {HTMLElement} element - The element from the function reads the scroll values
 * @param {Boolean} subtract - set to true if you want to subtract the scroll values
 * @return {Object} rect - The modifier rect object
 */
function includeScroll(rect, element) {
  var subtract = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : false;

  var scrollTop = getScroll(element, 'top');
  var scrollLeft = getScroll(element, 'left');
  var modifier = subtract ? -1 : 1;
  rect.top += scrollTop * modifier;
  rect.bottom += scrollTop * modifier;
  rect.left += scrollLeft * modifier;
  rect.right += scrollLeft * modifier;
  return rect;
}

/*
 * Helper to detect borders of a given element
 * @method
 * @memberof Popper.Utils
 * @param {CSSStyleDeclaration} styles
 * Result of `getStyleComputedProperty` on the given element
 * @param {String} axis - `x` or `y`
 * @return {number} borders - The borders size of the given axis
 */

function getBordersSize(styles, axis) {
  var sideA = axis === 'x' ? 'Left' : 'Top';
  var sideB = sideA === 'Left' ? 'Right' : 'Bottom';

  return +styles['border' + sideA + 'Width'].split('px')[0] + +styles['border' + sideB + 'Width'].split('px')[0];
}

/**
 * Tells if you are running Internet Explorer 10
 * @method
 * @memberof Popper.Utils
 * @returns {Boolean} isIE10
 */
var isIE10 = undefined;

var isIE10$1 = function () {
  if (isIE10 === undefined) {
    isIE10 = navigator.appVersion.indexOf('MSIE 10') !== -1;
  }
  return isIE10;
};

function getSize(axis, body, html, computedStyle) {
  return Math.max(body['offset' + axis], body['scroll' + axis], html['client' + axis], html['offset' + axis], html['scroll' + axis], isIE10$1() ? html['offset' + axis] + computedStyle['margin' + (axis === 'Height' ? 'Top' : 'Left')] + computedStyle['margin' + (axis === 'Height' ? 'Bottom' : 'Right')] : 0);
}

function getWindowSizes() {
  var body = window.document.body;
  var html = window.document.documentElement;
  var computedStyle = isIE10$1() && window.getComputedStyle(html);

  return {
    height: getSize('Height', body, html, computedStyle),
    width: getSize('Width', body, html, computedStyle)
  };
}

var _extends = Object.assign || function (target) {
  for (var i = 1; i < arguments.length; i++) {
    var source = arguments[i];

    for (var key in source) {
      if (Object.prototype.hasOwnProperty.call(source, key)) {
        target[key] = source[key];
      }
    }
  }

  return target;
};

/**
 * Given element offsets, generate an output similar to getBoundingClientRect
 * @method
 * @memberof Popper.Utils
 * @argument {Object} offsets
 * @returns {Object} ClientRect like output
 */
function getClientRect(offsets) {
  return _extends({}, offsets, {
    right: offsets.left + offsets.width,
    bottom: offsets.top + offsets.height
  });
}

/**
 * Get bounding client rect of given element
 * @method
 * @memberof Popper.Utils
 * @param {HTMLElement} element
 * @return {Object} client rect
 */
function getBoundingClientRect(element) {
  var rect = {};

  // IE10 10 FIX: Please, don't ask, the element isn't
  // considered in DOM in some circumstances...
  // This isn't reproducible in IE10 compatibility mode of IE11
  if (isIE10$1()) {
    try {
      rect = element.getBoundingClientRect();
      var scrollTop = getScroll(element, 'top');
      var scrollLeft = getScroll(element, 'left');
      rect.top += scrollTop;
      rect.left += scrollLeft;
      rect.bottom += scrollTop;
      rect.right += scrollLeft;
    } catch (err) {}
  } else {
    rect = element.getBoundingClientRect();
  }

  var result = {
    left: rect.left,
    top: rect.top,
    width: rect.right - rect.left,
    height: rect.bottom - rect.top
  };

  // subtract scrollbar size from sizes
  var sizes = element.nodeName === 'HTML' ? getWindowSizes() : {};
  var width = sizes.width || element.clientWidth || result.right - result.left;
  var height = sizes.height || element.clientHeight || result.bottom - result.top;

  var horizScrollbar = element.offsetWidth - width;
  var vertScrollbar = element.offsetHeight - height;

  // if an hypothetical scrollbar is detected, we must be sure it's not a `border`
  // we make this check conditional for performance reasons
  if (horizScrollbar || vertScrollbar) {
    var styles = getStyleComputedProperty(element);
    horizScrollbar -= getBordersSize(styles, 'x');
    vertScrollbar -= getBordersSize(styles, 'y');

    result.width -= horizScrollbar;
    result.height -= vertScrollbar;
  }

  return getClientRect(result);
}

function getOffsetRectRelativeToArbitraryNode(children, parent) {
  var isIE10 = isIE10$1();
  var isHTML = parent.nodeName === 'HTML';
  var childrenRect = getBoundingClientRect(children);
  var parentRect = getBoundingClientRect(parent);
  var scrollParent = getScrollParent(children);

  var styles = getStyleComputedProperty(parent);
  var borderTopWidth = +styles.borderTopWidth.split('px')[0];
  var borderLeftWidth = +styles.borderLeftWidth.split('px')[0];

  var offsets = getClientRect({
    top: childrenRect.top - parentRect.top - borderTopWidth,
    left: childrenRect.left - parentRect.left - borderLeftWidth,
    width: childrenRect.width,
    height: childrenRect.height
  });
  offsets.marginTop = 0;
  offsets.marginLeft = 0;

  // Subtract margins of documentElement in case it's being used as parent
  // we do this only on HTML because it's the only element that behaves
  // differently when margins are applied to it. The margins are included in
  // the box of the documentElement, in the other cases not.
  if (!isIE10 && isHTML) {
    var marginTop = +styles.marginTop.split('px')[0];
    var marginLeft = +styles.marginLeft.split('px')[0];

    offsets.top -= borderTopWidth - marginTop;
    offsets.bottom -= borderTopWidth - marginTop;
    offsets.left -= borderLeftWidth - marginLeft;
    offsets.right -= borderLeftWidth - marginLeft;

    // Attach marginTop and marginLeft because in some circumstances we may need them
    offsets.marginTop = marginTop;
    offsets.marginLeft = marginLeft;
  }

  if (isIE10 ? parent.contains(scrollParent) : parent === scrollParent && scrollParent.nodeName !== 'BODY') {
    offsets = includeScroll(offsets, parent);
  }

  return offsets;
}

function getViewportOffsetRectRelativeToArtbitraryNode(element) {
  var html = window.document.documentElement;
  var relativeOffset = getOffsetRectRelativeToArbitraryNode(element, html);
  var width = Math.max(html.clientWidth, window.innerWidth || 0);
  var height = Math.max(html.clientHeight, window.innerHeight || 0);

  var scrollTop = getScroll(html);
  var scrollLeft = getScroll(html, 'left');

  var offset = {
    top: scrollTop - relativeOffset.top + relativeOffset.marginTop,
    left: scrollLeft - relativeOffset.left + relativeOffset.marginLeft,
    width: width,
    height: height
  };

  return getClientRect(offset);
}

/**
 * Check if the given element is fixed or is inside a fixed parent
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @argument {Element} customContainer
 * @returns {Boolean} answer to "isFixed?"
 */
function isFixed(element) {
  var nodeName = element.nodeName;
  if (nodeName === 'BODY' || nodeName === 'HTML') {
    return false;
  }
  if (getStyleComputedProperty(element, 'position') === 'fixed') {
    return true;
  }
  return isFixed(getParentNode(element));
}

/**
 * Computed the boundaries limits and return them
 * @method
 * @memberof Popper.Utils
 * @param {HTMLElement} popper
 * @param {HTMLElement} reference
 * @param {number} padding
 * @param {HTMLElement} boundariesElement - Element used to define the boundaries
 * @returns {Object} Coordinates of the boundaries
 */
function getBoundaries(popper, reference, padding, boundariesElement) {
  // NOTE: 1 DOM access here
  var boundaries = { top: 0, left: 0 };
  var offsetParent = findCommonOffsetParent(popper, reference);

  // Handle viewport case
  if (boundariesElement === 'viewport') {
    boundaries = getViewportOffsetRectRelativeToArtbitraryNode(offsetParent);
  } else {
    // Handle other cases based on DOM element used as boundaries
    var boundariesNode = void 0;
    if (boundariesElement === 'scrollParent') {
      boundariesNode = getScrollParent(getParentNode(popper));
      if (boundariesNode.nodeName === 'BODY') {
        boundariesNode = window.document.documentElement;
      }
    } else if (boundariesElement === 'window') {
      boundariesNode = window.document.documentElement;
    } else {
      boundariesNode = boundariesElement;
    }

    var offsets = getOffsetRectRelativeToArbitraryNode(boundariesNode, offsetParent);

    // In case of HTML, we need a different computation
    if (boundariesNode.nodeName === 'HTML' && !isFixed(offsetParent)) {
      var _getWindowSizes = getWindowSizes(),
          height = _getWindowSizes.height,
          width = _getWindowSizes.width;

      boundaries.top += offsets.top - offsets.marginTop;
      boundaries.bottom = height + offsets.top;
      boundaries.left += offsets.left - offsets.marginLeft;
      boundaries.right = width + offsets.left;
    } else {
      // for all the other DOM elements, this one is good
      boundaries = offsets;
    }
  }

  // Add paddings
  boundaries.left += padding;
  boundaries.top += padding;
  boundaries.right -= padding;
  boundaries.bottom -= padding;

  return boundaries;
}

function getArea(_ref) {
  var width = _ref.width,
      height = _ref.height;

  return width * height;
}

/**
 * Utility used to transform the `auto` placement to the placement with more
 * available space.
 * @method
 * @memberof Popper.Utils
 * @argument {Object} data - The data object generated by update method
 * @argument {Object} options - Modifiers configuration and options
 * @returns {Object} The data object, properly modified
 */
function computeAutoPlacement(placement, refRect, popper, reference, boundariesElement) {
  var padding = arguments.length > 5 && arguments[5] !== undefined ? arguments[5] : 0;

  if (placement.indexOf('auto') === -1) {
    return placement;
  }

  var boundaries = getBoundaries(popper, reference, padding, boundariesElement);

  var rects = {
    top: {
      width: boundaries.width,
      height: refRect.top - boundaries.top
    },
    right: {
      width: boundaries.right - refRect.right,
      height: boundaries.height
    },
    bottom: {
      width: boundaries.width,
      height: boundaries.bottom - refRect.bottom
    },
    left: {
      width: refRect.left - boundaries.left,
      height: boundaries.height
    }
  };

  var sortedAreas = Object.keys(rects).map(function (key) {
    return _extends({
      key: key
    }, rects[key], {
      area: getArea(rects[key])
    });
  }).sort(function (a, b) {
    return b.area - a.area;
  });

  var filteredAreas = sortedAreas.filter(function (_ref2) {
    var width = _ref2.width,
        height = _ref2.height;
    return width >= popper.clientWidth && height >= popper.clientHeight;
  });

  var computedPlacement = filteredAreas.length > 0 ? filteredAreas[0].key : sortedAreas[0].key;

  var variation = placement.split('-')[1];

  return computedPlacement + (variation ? '-' + variation : '');
}

var nativeHints = ['native code', '[object MutationObserverConstructor]'];

/**
 * Determine if a function is implemented natively (as opposed to a polyfill).
 * @method
 * @memberof Popper.Utils
 * @argument {Function | undefined} fn the function to check
 * @returns {Boolean}
 */
var isNative = (function (fn) {
  return nativeHints.some(function (hint) {
    return (fn || '').toString().indexOf(hint) > -1;
  });
});

var isBrowser = typeof window !== 'undefined';
var longerTimeoutBrowsers = ['Edge', 'Trident', 'Firefox'];
var timeoutDuration = 0;
for (var i = 0; i < longerTimeoutBrowsers.length; i += 1) {
  if (isBrowser && navigator.userAgent.indexOf(longerTimeoutBrowsers[i]) >= 0) {
    timeoutDuration = 1;
    break;
  }
}

function microtaskDebounce(fn) {
  var scheduled = false;
  var i = 0;
  var elem = document.createElement('span');

  // MutationObserver provides a mechanism for scheduling microtasks, which
  // are scheduled *before* the next task. This gives us a way to debounce
  // a function but ensure it's called *before* the next paint.
  var observer = new MutationObserver(function () {
    fn();
    scheduled = false;
  });

  observer.observe(elem, { attributes: true });

  return function () {
    if (!scheduled) {
      scheduled = true;
      elem.setAttribute('x-index', i);
      i = i + 1; // don't use compund (+=) because it doesn't get optimized in V8
    }
  };
}

function taskDebounce(fn) {
  var scheduled = false;
  return function () {
    if (!scheduled) {
      scheduled = true;
      setTimeout(function () {
        scheduled = false;
        fn();
      }, timeoutDuration);
    }
  };
}

// It's common for MutationObserver polyfills to be seen in the wild, however
// these rely on Mutation Events which only occur when an element is connected
// to the DOM. The algorithm used in this module does not use a connected element,
// and so we must ensure that a *native* MutationObserver is available.
var supportsNativeMutationObserver = isBrowser && isNative(window.MutationObserver);

/**
* Create a debounced version of a method, that's asynchronously deferred
* but called in the minimum time possible.
*
* @method
* @memberof Popper.Utils
* @argument {Function} fn
* @returns {Function}
*/
var debounce = supportsNativeMutationObserver ? microtaskDebounce : taskDebounce;

/**
 * Mimics the `find` method of Array
 * @method
 * @memberof Popper.Utils
 * @argument {Array} arr
 * @argument prop
 * @argument value
 * @returns index or -1
 */
function find(arr, check) {
  // use native find if supported
  if (Array.prototype.find) {
    return arr.find(check);
  }

  // use `filter` to obtain the same behavior of `find`
  return arr.filter(check)[0];
}

/**
 * Return the index of the matching object
 * @method
 * @memberof Popper.Utils
 * @argument {Array} arr
 * @argument prop
 * @argument value
 * @returns index or -1
 */
function findIndex(arr, prop, value) {
  // use native findIndex if supported
  if (Array.prototype.findIndex) {
    return arr.findIndex(function (cur) {
      return cur[prop] === value;
    });
  }

  // use `find` + `indexOf` if `findIndex` isn't supported
  var match = find(arr, function (obj) {
    return obj[prop] === value;
  });
  return arr.indexOf(match);
}

/**
 * Get the position of the given element, relative to its offset parent
 * @method
 * @memberof Popper.Utils
 * @param {Element} element
 * @return {Object} position - Coordinates of the element and its `scrollTop`
 */
function getOffsetRect(element) {
  var elementRect = void 0;
  if (element.nodeName === 'HTML') {
    var _getWindowSizes = getWindowSizes(),
        width = _getWindowSizes.width,
        height = _getWindowSizes.height;

    elementRect = {
      width: width,
      height: height,
      left: 0,
      top: 0
    };
  } else {
    elementRect = {
      width: element.offsetWidth,
      height: element.offsetHeight,
      left: element.offsetLeft,
      top: element.offsetTop
    };
  }

  // position
  return getClientRect(elementRect);
}

/**
 * Get the outer sizes of the given element (offset size + margins)
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element
 * @returns {Object} object containing width and height properties
 */
function getOuterSizes(element) {
  var styles = window.getComputedStyle(element);
  var x = parseFloat(styles.marginTop) + parseFloat(styles.marginBottom);
  var y = parseFloat(styles.marginLeft) + parseFloat(styles.marginRight);
  var result = {
    width: element.offsetWidth + y,
    height: element.offsetHeight + x
  };
  return result;
}

/**
 * Get the opposite placement of the given one
 * @method
 * @memberof Popper.Utils
 * @argument {String} placement
 * @returns {String} flipped placement
 */
function getOppositePlacement(placement) {
  var hash = { left: 'right', right: 'left', bottom: 'top', top: 'bottom' };
  return placement.replace(/left|right|bottom|top/g, function (matched) {
    return hash[matched];
  });
}

/**
 * Get offsets to the popper
 * @method
 * @memberof Popper.Utils
 * @param {Object} position - CSS position the Popper will get applied
 * @param {HTMLElement} popper - the popper element
 * @param {Object} referenceOffsets - the reference offsets (the popper will be relative to this)
 * @param {String} placement - one of the valid placement options
 * @returns {Object} popperOffsets - An object containing the offsets which will be applied to the popper
 */
function getPopperOffsets(popper, referenceOffsets, placement) {
  placement = placement.split('-')[0];

  // Get popper node sizes
  var popperRect = getOuterSizes(popper);

  // Add position, width and height to our offsets object
  var popperOffsets = {
    width: popperRect.width,
    height: popperRect.height
  };

  // depending by the popper placement we have to compute its offsets slightly differently
  var isHoriz = ['right', 'left'].indexOf(placement) !== -1;
  var mainSide = isHoriz ? 'top' : 'left';
  var secondarySide = isHoriz ? 'left' : 'top';
  var measurement = isHoriz ? 'height' : 'width';
  var secondaryMeasurement = !isHoriz ? 'height' : 'width';

  popperOffsets[mainSide] = referenceOffsets[mainSide] + referenceOffsets[measurement] / 2 - popperRect[measurement] / 2;
  if (placement === secondarySide) {
    popperOffsets[secondarySide] = referenceOffsets[secondarySide] - popperRect[secondaryMeasurement];
  } else {
    popperOffsets[secondarySide] = referenceOffsets[getOppositePlacement(secondarySide)];
  }

  return popperOffsets;
}

/**
 * Get offsets to the reference element
 * @method
 * @memberof Popper.Utils
 * @param {Object} state
 * @param {Element} popper - the popper element
 * @param {Element} reference - the reference element (the popper will be relative to this)
 * @returns {Object} An object containing the offsets which will be applied to the popper
 */
function getReferenceOffsets(state, popper, reference) {
  var commonOffsetParent = findCommonOffsetParent(popper, reference);
  return getOffsetRectRelativeToArbitraryNode(reference, commonOffsetParent);
}

/**
 * Get the prefixed supported property name
 * @method
 * @memberof Popper.Utils
 * @argument {String} property (camelCase)
 * @returns {String} prefixed property (camelCase or PascalCase, depending on the vendor prefix)
 */
function getSupportedPropertyName(property) {
  var prefixes = [false, 'ms', 'Webkit', 'Moz', 'O'];
  var upperProp = property.charAt(0).toUpperCase() + property.slice(1);

  for (var i = 0; i < prefixes.length - 1; i++) {
    var prefix = prefixes[i];
    var toCheck = prefix ? '' + prefix + upperProp : property;
    if (typeof window.document.body.style[toCheck] !== 'undefined') {
      return toCheck;
    }
  }
  return null;
}

/**
 * Check if the given variable is a function
 * @method
 * @memberof Popper.Utils
 * @argument {Any} functionToCheck - variable to check
 * @returns {Boolean} answer to: is a function?
 */
function isFunction(functionToCheck) {
  var getType = {};
  return functionToCheck && getType.toString.call(functionToCheck) === '[object Function]';
}

/**
 * Helper used to know if the given modifier is enabled.
 * @method
 * @memberof Popper.Utils
 * @returns {Boolean}
 */
function isModifierEnabled(modifiers, modifierName) {
  return modifiers.some(function (_ref) {
    var name = _ref.name,
        enabled = _ref.enabled;
    return enabled && name === modifierName;
  });
}

/**
 * Helper used to know if the given modifier depends from another one.<br />
 * It checks if the needed modifier is listed and enabled.
 * @method
 * @memberof Popper.Utils
 * @param {Array} modifiers - list of modifiers
 * @param {String} requestingName - name of requesting modifier
 * @param {String} requestedName - name of requested modifier
 * @returns {Boolean}
 */
function isModifierRequired(modifiers, requestingName, requestedName) {
  var requesting = find(modifiers, function (_ref) {
    var name = _ref.name;
    return name === requestingName;
  });

  var isRequired = !!requesting && modifiers.some(function (modifier) {
    return modifier.name === requestedName && modifier.enabled && modifier.order < requesting.order;
  });

  if (!isRequired) {
    var _requesting = '`' + requestingName + '`';
    var requested = '`' + requestedName + '`';
    console.warn(requested + ' modifier is required by ' + _requesting + ' modifier in order to work, be sure to include it before ' + _requesting + '!');
  }
  return isRequired;
}

/**
 * Tells if a given input is a number
 * @method
 * @memberof Popper.Utils
 * @param {*} input to check
 * @return {Boolean}
 */
function isNumeric(n) {
  return n !== '' && !isNaN(parseFloat(n)) && isFinite(n);
}

/**
 * Remove event listeners used to update the popper position
 * @method
 * @memberof Popper.Utils
 * @private
 */
function removeEventListeners(reference, state) {
  // Remove resize event listener on window
  window.removeEventListener('resize', state.updateBound);

  // Remove scroll event listener on scroll parents
  state.scrollParents.forEach(function (target) {
    target.removeEventListener('scroll', state.updateBound);
  });

  // Reset state
  state.updateBound = null;
  state.scrollParents = [];
  state.scrollElement = null;
  state.eventsEnabled = false;
  return state;
}

/**
 * Loop trough the list of modifiers and run them in order,
 * each of them will then edit the data object.
 * @method
 * @memberof Popper.Utils
 * @param {dataObject} data
 * @param {Array} modifiers
 * @param {String} ends - Optional modifier name used as stopper
 * @returns {dataObject}
 */
function runModifiers(modifiers, data, ends) {
  var modifiersToRun = ends === undefined ? modifiers : modifiers.slice(0, findIndex(modifiers, 'name', ends));

  modifiersToRun.forEach(function (modifier) {
    if (modifier.function) {
      console.warn('`modifier.function` is deprecated, use `modifier.fn`!');
    }
    var fn = modifier.function || modifier.fn;
    if (modifier.enabled && isFunction(fn)) {
      // Add properties to offsets to make them a complete clientRect object
      // we do this before each modifier to make sure the previous one doesn't
      // mess with these values
      data.offsets.popper = getClientRect(data.offsets.popper);
      data.offsets.reference = getClientRect(data.offsets.reference);

      data = fn(data, modifier);
    }
  });

  return data;
}

/**
 * Set the attributes to the given popper
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element - Element to apply the attributes to
 * @argument {Object} styles
 * Object with a list of properties and values which will be applied to the element
 */
function setAttributes(element, attributes) {
  Object.keys(attributes).forEach(function (prop) {
    var value = attributes[prop];
    if (value !== false) {
      element.setAttribute(prop, attributes[prop]);
    } else {
      element.removeAttribute(prop);
    }
  });
}

/**
 * Set the style to the given popper
 * @method
 * @memberof Popper.Utils
 * @argument {Element} element - Element to apply the style to
 * @argument {Object} styles
 * Object with a list of properties and values which will be applied to the element
 */
function setStyles(element, styles) {
  Object.keys(styles).forEach(function (prop) {
    var unit = '';
    // add unit if the value is numeric and is one of the following
    if (['width', 'height', 'top', 'right', 'bottom', 'left'].indexOf(prop) !== -1 && isNumeric(styles[prop])) {
      unit = 'px';
    }
    element.style[prop] = styles[prop] + unit;
  });
}

function attachToScrollParents(scrollParent, event, callback, scrollParents) {
  var isBody = scrollParent.nodeName === 'BODY';
  var target = isBody ? window : scrollParent;
  target.addEventListener(event, callback, { passive: true });

  if (!isBody) {
    attachToScrollParents(getScrollParent(target.parentNode), event, callback, scrollParents);
  }
  scrollParents.push(target);
}

/**
 * Setup needed event listeners used to update the popper position
 * @method
 * @memberof Popper.Utils
 * @private
 */
function setupEventListeners(reference, options, state, updateBound) {
  // Resize event listener on window
  state.updateBound = updateBound;
  window.addEventListener('resize', state.updateBound, { passive: true });

  // Scroll event listener on scroll parents
  var scrollElement = getScrollParent(reference);
  attachToScrollParents(scrollElement, 'scroll', state.updateBound, state.scrollParents);
  state.scrollElement = scrollElement;
  state.eventsEnabled = true;

  return state;
}

// This is here just for backward compatibility with versions lower than v1.10.3
// you should import the utilities using named exports, if you want them all use:
// ```
// import * as PopperUtils from 'popper-utils';
// ```
// The default export will be removed in the next major version.
var index = {
  computeAutoPlacement: computeAutoPlacement,
  debounce: debounce,
  findIndex: findIndex,
  getBordersSize: getBordersSize,
  getBoundaries: getBoundaries,
  getBoundingClientRect: getBoundingClientRect,
  getClientRect: getClientRect,
  getOffsetParent: getOffsetParent,
  getOffsetRect: getOffsetRect,
  getOffsetRectRelativeToArbitraryNode: getOffsetRectRelativeToArbitraryNode,
  getOuterSizes: getOuterSizes,
  getParentNode: getParentNode,
  getPopperOffsets: getPopperOffsets,
  getReferenceOffsets: getReferenceOffsets,
  getScroll: getScroll,
  getScrollParent: getScrollParent,
  getStyleComputedProperty: getStyleComputedProperty,
  getSupportedPropertyName: getSupportedPropertyName,
  getWindowSizes: getWindowSizes,
  isFixed: isFixed,
  isFunction: isFunction,
  isModifierEnabled: isModifierEnabled,
  isModifierRequired: isModifierRequired,
  isNative: isNative,
  isNumeric: isNumeric,
  removeEventListeners: removeEventListeners,
  runModifiers: runModifiers,
  setAttributes: setAttributes,
  setStyles: setStyles,
  setupEventListeners: setupEventListeners
};

exports.computeAutoPlacement = computeAutoPlacement;
exports.debounce = debounce;
exports.findIndex = findIndex;
exports.getBordersSize = getBordersSize;
exports.getBoundaries = getBoundaries;
exports.getBoundingClientRect = getBoundingClientRect;
exports.getClientRect = getClientRect;
exports.getOffsetParent = getOffsetParent;
exports.getOffsetRect = getOffsetRect;
exports.getOffsetRectRelativeToArbitraryNode = getOffsetRectRelativeToArbitraryNode;
exports.getOuterSizes = getOuterSizes;
exports.getParentNode = getParentNode;
exports.getPopperOffsets = getPopperOffsets;
exports.getReferenceOffsets = getReferenceOffsets;
exports.getScroll = getScroll;
exports.getScrollParent = getScrollParent;
exports.getStyleComputedProperty = getStyleComputedProperty;
exports.getSupportedPropertyName = getSupportedPropertyName;
exports.getWindowSizes = getWindowSizes;
exports.isFixed = isFixed;
exports.isFunction = isFunction;
exports.isModifierEnabled = isModifierEnabled;
exports.isModifierRequired = isModifierRequired;
exports.isNative = isNative;
exports.isNumeric = isNumeric;
exports.removeEventListeners = removeEventListeners;
exports.runModifiers = runModifiers;
exports.setAttributes = setAttributes;
exports.setStyles = setStyles;
exports.setupEventListeners = setupEventListeners;
exports['default'] = index;

Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=popper-utils.js.map

/*!
  * Bootstrap v4.1.2 (https://getbootstrap.com/)
  * Copyright 2011-2018 The Bootstrap Authors (https://github.com/twbs/bootstrap/graphs/contributors)
  * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
  */
(function (global, factory) {
  typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports, require('jquery'), require('popper.js')) :
  typeof define === 'function' && define.amd ? define(['exports', 'jquery', 'popper.js'], factory) :
  (factory((global.bootstrap = {}),global.jQuery,global.Popper));
}(this, (function (exports,$,Popper) { 'use strict';

  $ = $ && $.hasOwnProperty('default') ? $['default'] : $;
  Popper = Popper && Popper.hasOwnProperty('default') ? Popper['default'] : Popper;

  function _defineProperties(target, props) {
    for (var i = 0; i < props.length; i++) {
      var descriptor = props[i];
      descriptor.enumerable = descriptor.enumerable || false;
      descriptor.configurable = true;
      if ("value" in descriptor) descriptor.writable = true;
      Object.defineProperty(target, descriptor.key, descriptor);
    }
  }

  function _createClass(Constructor, protoProps, staticProps) {
    if (protoProps) _defineProperties(Constructor.prototype, protoProps);
    if (staticProps) _defineProperties(Constructor, staticProps);
    return Constructor;
  }

  function _defineProperty(obj, key, value) {
    if (key in obj) {
      Object.defineProperty(obj, key, {
        value: value,
        enumerable: true,
        configurable: true,
        writable: true
      });
    } else {
      obj[key] = value;
    }

    return obj;
  }

  function _objectSpread(target) {
    for (var i = 1; i < arguments.length; i++) {
      var source = arguments[i] != null ? arguments[i] : {};
      var ownKeys = Object.keys(source);

      if (typeof Object.getOwnPropertySymbols === 'function') {
        ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function (sym) {
          return Object.getOwnPropertyDescriptor(source, sym).enumerable;
        }));
      }

      ownKeys.forEach(function (key) {
        _defineProperty(target, key, source[key]);
      });
    }

    return target;
  }

  function _inheritsLoose(subClass, superClass) {
    subClass.prototype = Object.create(superClass.prototype);
    subClass.prototype.constructor = subClass;
    subClass.__proto__ = superClass;
  }

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): util.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Util = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Private TransitionEnd Helpers
     * ------------------------------------------------------------------------
     */
    var TRANSITION_END = 'transitionend';
    var MAX_UID = 1000000;
    var MILLISECONDS_MULTIPLIER = 1000; // Shoutout AngusCroll (https://goo.gl/pxwQGp)

    function toType(obj) {
      return {}.toString.call(obj).match(/\s([a-z]+)/i)[1].toLowerCase();
    }

    function getSpecialTransitionEndEvent() {
      return {
        bindType: TRANSITION_END,
        delegateType: TRANSITION_END,
        handle: function handle(event) {
          if ($$$1(event.target).is(this)) {
            return event.handleObj.handler.apply(this, arguments); // eslint-disable-line prefer-rest-params
          }

          return undefined; // eslint-disable-line no-undefined
        }
      };
    }

    function transitionEndEmulator(duration) {
      var _this = this;

      var called = false;
      $$$1(this).one(Util.TRANSITION_END, function () {
        called = true;
      });
      setTimeout(function () {
        if (!called) {
          Util.triggerTransitionEnd(_this);
        }
      }, duration);
      return this;
    }

    function setTransitionEndSupport() {
      $$$1.fn.emulateTransitionEnd = transitionEndEmulator;
      $$$1.event.special[Util.TRANSITION_END] = getSpecialTransitionEndEvent();
    }
    /**
     * --------------------------------------------------------------------------
     * Public Util Api
     * --------------------------------------------------------------------------
     */


    var Util = {
      TRANSITION_END: 'bsTransitionEnd',
      getUID: function getUID(prefix) {
        do {
          // eslint-disable-next-line no-bitwise
          prefix += ~~(Math.random() * MAX_UID); // "~~" acts like a faster Math.floor() here
        } while (document.getElementById(prefix));

        return prefix;
      },
      getSelectorFromElement: function getSelectorFromElement(element) {
        var selector = element.getAttribute('data-target');

        if (!selector || selector === '#') {
          selector = element.getAttribute('href') || '';
        }

        try {
          return document.querySelector(selector) ? selector : null;
        } catch (err) {
          return null;
        }
      },
      getTransitionDurationFromElement: function getTransitionDurationFromElement(element) {
        if (!element) {
          return 0;
        } // Get transition-duration of the element


        var transitionDuration = $$$1(element).css('transition-duration');
        var floatTransitionDuration = parseFloat(transitionDuration); // Return 0 if element or transition duration is not found

        if (!floatTransitionDuration) {
          return 0;
        } // If multiple durations are defined, take the first


        transitionDuration = transitionDuration.split(',')[0];
        return parseFloat(transitionDuration) * MILLISECONDS_MULTIPLIER;
      },
      reflow: function reflow(element) {
        return element.offsetHeight;
      },
      triggerTransitionEnd: function triggerTransitionEnd(element) {
        $$$1(element).trigger(TRANSITION_END);
      },
      // TODO: Remove in v5
      supportsTransitionEnd: function supportsTransitionEnd() {
        return Boolean(TRANSITION_END);
      },
      isElement: function isElement(obj) {
        return (obj[0] || obj).nodeType;
      },
      typeCheckConfig: function typeCheckConfig(componentName, config, configTypes) {
        for (var property in configTypes) {
          if (Object.prototype.hasOwnProperty.call(configTypes, property)) {
            var expectedTypes = configTypes[property];
            var value = config[property];
            var valueType = value && Util.isElement(value) ? 'element' : toType(value);

            if (!new RegExp(expectedTypes).test(valueType)) {
              throw new Error(componentName.toUpperCase() + ": " + ("Option \"" + property + "\" provided type \"" + valueType + "\" ") + ("but expected type \"" + expectedTypes + "\"."));
            }
          }
        }
      }
    };
    setTransitionEndSupport();
    return Util;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): alert.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Alert = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'alert';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.alert';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var Selector = {
      DISMISS: '[data-dismiss="alert"]'
    };
    var Event = {
      CLOSE: "close" + EVENT_KEY,
      CLOSED: "closed" + EVENT_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      ALERT: 'alert',
      FADE: 'fade',
      SHOW: 'show'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Alert =
    /*#__PURE__*/
    function () {
      function Alert(element) {
        this._element = element;
      } // Getters


      var _proto = Alert.prototype;

      // Public
      _proto.close = function close(element) {
        var rootElement = this._element;

        if (element) {
          rootElement = this._getRootElement(element);
        }

        var customEvent = this._triggerCloseEvent(rootElement);

        if (customEvent.isDefaultPrevented()) {
          return;
        }

        this._removeElement(rootElement);
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        this._element = null;
      }; // Private


      _proto._getRootElement = function _getRootElement(element) {
        var selector = Util.getSelectorFromElement(element);
        var parent = false;

        if (selector) {
          parent = document.querySelector(selector);
        }

        if (!parent) {
          parent = $$$1(element).closest("." + ClassName.ALERT)[0];
        }

        return parent;
      };

      _proto._triggerCloseEvent = function _triggerCloseEvent(element) {
        var closeEvent = $$$1.Event(Event.CLOSE);
        $$$1(element).trigger(closeEvent);
        return closeEvent;
      };

      _proto._removeElement = function _removeElement(element) {
        var _this = this;

        $$$1(element).removeClass(ClassName.SHOW);

        if (!$$$1(element).hasClass(ClassName.FADE)) {
          this._destroyElement(element);

          return;
        }

        var transitionDuration = Util.getTransitionDurationFromElement(element);
        $$$1(element).one(Util.TRANSITION_END, function (event) {
          return _this._destroyElement(element, event);
        }).emulateTransitionEnd(transitionDuration);
      };

      _proto._destroyElement = function _destroyElement(element) {
        $$$1(element).detach().trigger(Event.CLOSED).remove();
      }; // Static


      Alert._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $element = $$$1(this);
          var data = $element.data(DATA_KEY);

          if (!data) {
            data = new Alert(this);
            $element.data(DATA_KEY, data);
          }

          if (config === 'close') {
            data[config](this);
          }
        });
      };

      Alert._handleDismiss = function _handleDismiss(alertInstance) {
        return function (event) {
          if (event) {
            event.preventDefault();
          }

          alertInstance.close(this);
        };
      };

      _createClass(Alert, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }]);

      return Alert;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.CLICK_DATA_API, Selector.DISMISS, Alert._handleDismiss(new Alert()));
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Alert._jQueryInterface;
    $$$1.fn[NAME].Constructor = Alert;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Alert._jQueryInterface;
    };

    return Alert;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): button.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Button = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'button';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.button';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var ClassName = {
      ACTIVE: 'active',
      BUTTON: 'btn',
      FOCUS: 'focus'
    };
    var Selector = {
      DATA_TOGGLE_CARROT: '[data-toggle^="button"]',
      DATA_TOGGLE: '[data-toggle="buttons"]',
      INPUT: 'input',
      ACTIVE: '.active',
      BUTTON: '.btn'
    };
    var Event = {
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
      FOCUS_BLUR_DATA_API: "focus" + EVENT_KEY + DATA_API_KEY + " " + ("blur" + EVENT_KEY + DATA_API_KEY)
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Button =
    /*#__PURE__*/
    function () {
      function Button(element) {
        this._element = element;
      } // Getters


      var _proto = Button.prototype;

      // Public
      _proto.toggle = function toggle() {
        var triggerChangeEvent = true;
        var addAriaPressed = true;
        var rootElement = $$$1(this._element).closest(Selector.DATA_TOGGLE)[0];

        if (rootElement) {
          var input = this._element.querySelector(Selector.INPUT);

          if (input) {
            if (input.type === 'radio') {
              if (input.checked && this._element.classList.contains(ClassName.ACTIVE)) {
                triggerChangeEvent = false;
              } else {
                var activeElement = rootElement.querySelector(Selector.ACTIVE);

                if (activeElement) {
                  $$$1(activeElement).removeClass(ClassName.ACTIVE);
                }
              }
            }

            if (triggerChangeEvent) {
              if (input.hasAttribute('disabled') || rootElement.hasAttribute('disabled') || input.classList.contains('disabled') || rootElement.classList.contains('disabled')) {
                return;
              }

              input.checked = !this._element.classList.contains(ClassName.ACTIVE);
              $$$1(input).trigger('change');
            }

            input.focus();
            addAriaPressed = false;
          }
        }

        if (addAriaPressed) {
          this._element.setAttribute('aria-pressed', !this._element.classList.contains(ClassName.ACTIVE));
        }

        if (triggerChangeEvent) {
          $$$1(this._element).toggleClass(ClassName.ACTIVE);
        }
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        this._element = null;
      }; // Static


      Button._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          if (!data) {
            data = new Button(this);
            $$$1(this).data(DATA_KEY, data);
          }

          if (config === 'toggle') {
            data[config]();
          }
        });
      };

      _createClass(Button, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }]);

      return Button;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
      event.preventDefault();
      var button = event.target;

      if (!$$$1(button).hasClass(ClassName.BUTTON)) {
        button = $$$1(button).closest(Selector.BUTTON);
      }

      Button._jQueryInterface.call($$$1(button), 'toggle');
    }).on(Event.FOCUS_BLUR_DATA_API, Selector.DATA_TOGGLE_CARROT, function (event) {
      var button = $$$1(event.target).closest(Selector.BUTTON)[0];
      $$$1(button).toggleClass(ClassName.FOCUS, /^focus(in)?$/.test(event.type));
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Button._jQueryInterface;
    $$$1.fn[NAME].Constructor = Button;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Button._jQueryInterface;
    };

    return Button;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): carousel.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Carousel = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'carousel';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.carousel';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var ARROW_LEFT_KEYCODE = 37; // KeyboardEvent.which value for left arrow key

    var ARROW_RIGHT_KEYCODE = 39; // KeyboardEvent.which value for right arrow key

    var TOUCHEVENT_COMPAT_WAIT = 500; // Time for mouse compat events to fire after touch

    var Default = {
      interval: 5000,
      keyboard: true,
      slide: false,
      pause: 'hover',
      wrap: true
    };
    var DefaultType = {
      interval: '(number|boolean)',
      keyboard: 'boolean',
      slide: '(boolean|string)',
      pause: '(string|boolean)',
      wrap: 'boolean'
    };
    var Direction = {
      NEXT: 'next',
      PREV: 'prev',
      LEFT: 'left',
      RIGHT: 'right'
    };
    var Event = {
      SLIDE: "slide" + EVENT_KEY,
      SLID: "slid" + EVENT_KEY,
      KEYDOWN: "keydown" + EVENT_KEY,
      MOUSEENTER: "mouseenter" + EVENT_KEY,
      MOUSELEAVE: "mouseleave" + EVENT_KEY,
      TOUCHEND: "touchend" + EVENT_KEY,
      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      CAROUSEL: 'carousel',
      ACTIVE: 'active',
      SLIDE: 'slide',
      RIGHT: 'carousel-item-right',
      LEFT: 'carousel-item-left',
      NEXT: 'carousel-item-next',
      PREV: 'carousel-item-prev',
      ITEM: 'carousel-item'
    };
    var Selector = {
      ACTIVE: '.active',
      ACTIVE_ITEM: '.active.carousel-item',
      ITEM: '.carousel-item',
      NEXT_PREV: '.carousel-item-next, .carousel-item-prev',
      INDICATORS: '.carousel-indicators',
      DATA_SLIDE: '[data-slide], [data-slide-to]',
      DATA_RIDE: '[data-ride="carousel"]'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Carousel =
    /*#__PURE__*/
    function () {
      function Carousel(element, config) {
        this._items = null;
        this._interval = null;
        this._activeElement = null;
        this._isPaused = false;
        this._isSliding = false;
        this.touchTimeout = null;
        this._config = this._getConfig(config);
        this._element = $$$1(element)[0];
        this._indicatorsElement = this._element.querySelector(Selector.INDICATORS);

        this._addEventListeners();
      } // Getters


      var _proto = Carousel.prototype;

      // Public
      _proto.next = function next() {
        if (!this._isSliding) {
          this._slide(Direction.NEXT);
        }
      };

      _proto.nextWhenVisible = function nextWhenVisible() {
        // Don't call next when the page isn't visible
        // or the carousel or its parent isn't visible
        if (!document.hidden && $$$1(this._element).is(':visible') && $$$1(this._element).css('visibility') !== 'hidden') {
          this.next();
        }
      };

      _proto.prev = function prev() {
        if (!this._isSliding) {
          this._slide(Direction.PREV);
        }
      };

      _proto.pause = function pause(event) {
        if (!event) {
          this._isPaused = true;
        }

        if (this._element.querySelector(Selector.NEXT_PREV)) {
          Util.triggerTransitionEnd(this._element);
          this.cycle(true);
        }

        clearInterval(this._interval);
        this._interval = null;
      };

      _proto.cycle = function cycle(event) {
        if (!event) {
          this._isPaused = false;
        }

        if (this._interval) {
          clearInterval(this._interval);
          this._interval = null;
        }

        if (this._config.interval && !this._isPaused) {
          this._interval = setInterval((document.visibilityState ? this.nextWhenVisible : this.next).bind(this), this._config.interval);
        }
      };

      _proto.to = function to(index) {
        var _this = this;

        this._activeElement = this._element.querySelector(Selector.ACTIVE_ITEM);

        var activeIndex = this._getItemIndex(this._activeElement);

        if (index > this._items.length - 1 || index < 0) {
          return;
        }

        if (this._isSliding) {
          $$$1(this._element).one(Event.SLID, function () {
            return _this.to(index);
          });
          return;
        }

        if (activeIndex === index) {
          this.pause();
          this.cycle();
          return;
        }

        var direction = index > activeIndex ? Direction.NEXT : Direction.PREV;

        this._slide(direction, this._items[index]);
      };

      _proto.dispose = function dispose() {
        $$$1(this._element).off(EVENT_KEY);
        $$$1.removeData(this._element, DATA_KEY);
        this._items = null;
        this._config = null;
        this._element = null;
        this._interval = null;
        this._isPaused = null;
        this._isSliding = null;
        this._activeElement = null;
        this._indicatorsElement = null;
      }; // Private


      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, config);
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };

      _proto._addEventListeners = function _addEventListeners() {
        var _this2 = this;

        if (this._config.keyboard) {
          $$$1(this._element).on(Event.KEYDOWN, function (event) {
            return _this2._keydown(event);
          });
        }

        if (this._config.pause === 'hover') {
          $$$1(this._element).on(Event.MOUSEENTER, function (event) {
            return _this2.pause(event);
          }).on(Event.MOUSELEAVE, function (event) {
            return _this2.cycle(event);
          });

          if ('ontouchstart' in document.documentElement) {
            // If it's a touch-enabled device, mouseenter/leave are fired as
            // part of the mouse compatibility events on first tap - the carousel
            // would stop cycling until user tapped out of it;
            // here, we listen for touchend, explicitly pause the carousel
            // (as if it's the second time we tap on it, mouseenter compat event
            // is NOT fired) and after a timeout (to allow for mouse compatibility
            // events to fire) we explicitly restart cycling
            $$$1(this._element).on(Event.TOUCHEND, function () {
              _this2.pause();

              if (_this2.touchTimeout) {
                clearTimeout(_this2.touchTimeout);
              }

              _this2.touchTimeout = setTimeout(function (event) {
                return _this2.cycle(event);
              }, TOUCHEVENT_COMPAT_WAIT + _this2._config.interval);
            });
          }
        }
      };

      _proto._keydown = function _keydown(event) {
        if (/input|textarea/i.test(event.target.tagName)) {
          return;
        }

        switch (event.which) {
          case ARROW_LEFT_KEYCODE:
            event.preventDefault();
            this.prev();
            break;

          case ARROW_RIGHT_KEYCODE:
            event.preventDefault();
            this.next();
            break;

          default:
        }
      };

      _proto._getItemIndex = function _getItemIndex(element) {
        this._items = element && element.parentNode ? [].slice.call(element.parentNode.querySelectorAll(Selector.ITEM)) : [];
        return this._items.indexOf(element);
      };

      _proto._getItemByDirection = function _getItemByDirection(direction, activeElement) {
        var isNextDirection = direction === Direction.NEXT;
        var isPrevDirection = direction === Direction.PREV;

        var activeIndex = this._getItemIndex(activeElement);

        var lastItemIndex = this._items.length - 1;
        var isGoingToWrap = isPrevDirection && activeIndex === 0 || isNextDirection && activeIndex === lastItemIndex;

        if (isGoingToWrap && !this._config.wrap) {
          return activeElement;
        }

        var delta = direction === Direction.PREV ? -1 : 1;
        var itemIndex = (activeIndex + delta) % this._items.length;
        return itemIndex === -1 ? this._items[this._items.length - 1] : this._items[itemIndex];
      };

      _proto._triggerSlideEvent = function _triggerSlideEvent(relatedTarget, eventDirectionName) {
        var targetIndex = this._getItemIndex(relatedTarget);

        var fromIndex = this._getItemIndex(this._element.querySelector(Selector.ACTIVE_ITEM));

        var slideEvent = $$$1.Event(Event.SLIDE, {
          relatedTarget: relatedTarget,
          direction: eventDirectionName,
          from: fromIndex,
          to: targetIndex
        });
        $$$1(this._element).trigger(slideEvent);
        return slideEvent;
      };

      _proto._setActiveIndicatorElement = function _setActiveIndicatorElement(element) {
        if (this._indicatorsElement) {
          var indicators = [].slice.call(this._indicatorsElement.querySelectorAll(Selector.ACTIVE));
          $$$1(indicators).removeClass(ClassName.ACTIVE);

          var nextIndicator = this._indicatorsElement.children[this._getItemIndex(element)];

          if (nextIndicator) {
            $$$1(nextIndicator).addClass(ClassName.ACTIVE);
          }
        }
      };

      _proto._slide = function _slide(direction, element) {
        var _this3 = this;

        var activeElement = this._element.querySelector(Selector.ACTIVE_ITEM);

        var activeElementIndex = this._getItemIndex(activeElement);

        var nextElement = element || activeElement && this._getItemByDirection(direction, activeElement);

        var nextElementIndex = this._getItemIndex(nextElement);

        var isCycling = Boolean(this._interval);
        var directionalClassName;
        var orderClassName;
        var eventDirectionName;

        if (direction === Direction.NEXT) {
          directionalClassName = ClassName.LEFT;
          orderClassName = ClassName.NEXT;
          eventDirectionName = Direction.LEFT;
        } else {
          directionalClassName = ClassName.RIGHT;
          orderClassName = ClassName.PREV;
          eventDirectionName = Direction.RIGHT;
        }

        if (nextElement && $$$1(nextElement).hasClass(ClassName.ACTIVE)) {
          this._isSliding = false;
          return;
        }

        var slideEvent = this._triggerSlideEvent(nextElement, eventDirectionName);

        if (slideEvent.isDefaultPrevented()) {
          return;
        }

        if (!activeElement || !nextElement) {
          // Some weirdness is happening, so we bail
          return;
        }

        this._isSliding = true;

        if (isCycling) {
          this.pause();
        }

        this._setActiveIndicatorElement(nextElement);

        var slidEvent = $$$1.Event(Event.SLID, {
          relatedTarget: nextElement,
          direction: eventDirectionName,
          from: activeElementIndex,
          to: nextElementIndex
        });

        if ($$$1(this._element).hasClass(ClassName.SLIDE)) {
          $$$1(nextElement).addClass(orderClassName);
          Util.reflow(nextElement);
          $$$1(activeElement).addClass(directionalClassName);
          $$$1(nextElement).addClass(directionalClassName);
          var transitionDuration = Util.getTransitionDurationFromElement(activeElement);
          $$$1(activeElement).one(Util.TRANSITION_END, function () {
            $$$1(nextElement).removeClass(directionalClassName + " " + orderClassName).addClass(ClassName.ACTIVE);
            $$$1(activeElement).removeClass(ClassName.ACTIVE + " " + orderClassName + " " + directionalClassName);
            _this3._isSliding = false;
            setTimeout(function () {
              return $$$1(_this3._element).trigger(slidEvent);
            }, 0);
          }).emulateTransitionEnd(transitionDuration);
        } else {
          $$$1(activeElement).removeClass(ClassName.ACTIVE);
          $$$1(nextElement).addClass(ClassName.ACTIVE);
          this._isSliding = false;
          $$$1(this._element).trigger(slidEvent);
        }

        if (isCycling) {
          this.cycle();
        }
      }; // Static


      Carousel._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          var _config = _objectSpread({}, Default, $$$1(this).data());

          if (typeof config === 'object') {
            _config = _objectSpread({}, _config, config);
          }

          var action = typeof config === 'string' ? config : _config.slide;

          if (!data) {
            data = new Carousel(this, _config);
            $$$1(this).data(DATA_KEY, data);
          }

          if (typeof config === 'number') {
            data.to(config);
          } else if (typeof action === 'string') {
            if (typeof data[action] === 'undefined') {
              throw new TypeError("No method named \"" + action + "\"");
            }

            data[action]();
          } else if (_config.interval) {
            data.pause();
            data.cycle();
          }
        });
      };

      Carousel._dataApiClickHandler = function _dataApiClickHandler(event) {
        var selector = Util.getSelectorFromElement(this);

        if (!selector) {
          return;
        }

        var target = $$$1(selector)[0];

        if (!target || !$$$1(target).hasClass(ClassName.CAROUSEL)) {
          return;
        }

        var config = _objectSpread({}, $$$1(target).data(), $$$1(this).data());

        var slideIndex = this.getAttribute('data-slide-to');

        if (slideIndex) {
          config.interval = false;
        }

        Carousel._jQueryInterface.call($$$1(target), config);

        if (slideIndex) {
          $$$1(target).data(DATA_KEY).to(slideIndex);
        }

        event.preventDefault();
      };

      _createClass(Carousel, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);

      return Carousel;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_SLIDE, Carousel._dataApiClickHandler);
    $$$1(window).on(Event.LOAD_DATA_API, function () {
      var carousels = [].slice.call(document.querySelectorAll(Selector.DATA_RIDE));

      for (var i = 0, len = carousels.length; i < len; i++) {
        var $carousel = $$$1(carousels[i]);

        Carousel._jQueryInterface.call($carousel, $carousel.data());
      }
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Carousel._jQueryInterface;
    $$$1.fn[NAME].Constructor = Carousel;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Carousel._jQueryInterface;
    };

    return Carousel;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): collapse.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Collapse = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'collapse';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.collapse';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var Default = {
      toggle: true,
      parent: ''
    };
    var DefaultType = {
      toggle: 'boolean',
      parent: '(string|element)'
    };
    var Event = {
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY,
      HIDE: "hide" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      SHOW: 'show',
      COLLAPSE: 'collapse',
      COLLAPSING: 'collapsing',
      COLLAPSED: 'collapsed'
    };
    var Dimension = {
      WIDTH: 'width',
      HEIGHT: 'height'
    };
    var Selector = {
      ACTIVES: '.show, .collapsing',
      DATA_TOGGLE: '[data-toggle="collapse"]'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Collapse =
    /*#__PURE__*/
    function () {
      function Collapse(element, config) {
        this._isTransitioning = false;
        this._element = element;
        this._config = this._getConfig(config);
        this._triggerArray = $$$1.makeArray(document.querySelectorAll("[data-toggle=\"collapse\"][href=\"#" + element.id + "\"]," + ("[data-toggle=\"collapse\"][data-target=\"#" + element.id + "\"]")));
        var toggleList = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE));

        for (var i = 0, len = toggleList.length; i < len; i++) {
          var elem = toggleList[i];
          var selector = Util.getSelectorFromElement(elem);
          var filterElement = [].slice.call(document.querySelectorAll(selector)).filter(function (foundElem) {
            return foundElem === element;
          });

          if (selector !== null && filterElement.length > 0) {
            this._selector = selector;

            this._triggerArray.push(elem);
          }
        }

        this._parent = this._config.parent ? this._getParent() : null;

        if (!this._config.parent) {
          this._addAriaAndCollapsedClass(this._element, this._triggerArray);
        }

        if (this._config.toggle) {
          this.toggle();
        }
      } // Getters


      var _proto = Collapse.prototype;

      // Public
      _proto.toggle = function toggle() {
        if ($$$1(this._element).hasClass(ClassName.SHOW)) {
          this.hide();
        } else {
          this.show();
        }
      };

      _proto.show = function show() {
        var _this = this;

        if (this._isTransitioning || $$$1(this._element).hasClass(ClassName.SHOW)) {
          return;
        }

        var actives;
        var activesData;

        if (this._parent) {
          actives = [].slice.call(this._parent.querySelectorAll(Selector.ACTIVES)).filter(function (elem) {
            return elem.getAttribute('data-parent') === _this._config.parent;
          });

          if (actives.length === 0) {
            actives = null;
          }
        }

        if (actives) {
          activesData = $$$1(actives).not(this._selector).data(DATA_KEY);

          if (activesData && activesData._isTransitioning) {
            return;
          }
        }

        var startEvent = $$$1.Event(Event.SHOW);
        $$$1(this._element).trigger(startEvent);

        if (startEvent.isDefaultPrevented()) {
          return;
        }

        if (actives) {
          Collapse._jQueryInterface.call($$$1(actives).not(this._selector), 'hide');

          if (!activesData) {
            $$$1(actives).data(DATA_KEY, null);
          }
        }

        var dimension = this._getDimension();

        $$$1(this._element).removeClass(ClassName.COLLAPSE).addClass(ClassName.COLLAPSING);
        this._element.style[dimension] = 0;

        if (this._triggerArray.length) {
          $$$1(this._triggerArray).removeClass(ClassName.COLLAPSED).attr('aria-expanded', true);
        }

        this.setTransitioning(true);

        var complete = function complete() {
          $$$1(_this._element).removeClass(ClassName.COLLAPSING).addClass(ClassName.COLLAPSE).addClass(ClassName.SHOW);
          _this._element.style[dimension] = '';

          _this.setTransitioning(false);

          $$$1(_this._element).trigger(Event.SHOWN);
        };

        var capitalizedDimension = dimension[0].toUpperCase() + dimension.slice(1);
        var scrollSize = "scroll" + capitalizedDimension;
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $$$1(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        this._element.style[dimension] = this._element[scrollSize] + "px";
      };

      _proto.hide = function hide() {
        var _this2 = this;

        if (this._isTransitioning || !$$$1(this._element).hasClass(ClassName.SHOW)) {
          return;
        }

        var startEvent = $$$1.Event(Event.HIDE);
        $$$1(this._element).trigger(startEvent);

        if (startEvent.isDefaultPrevented()) {
          return;
        }

        var dimension = this._getDimension();

        this._element.style[dimension] = this._element.getBoundingClientRect()[dimension] + "px";
        Util.reflow(this._element);
        $$$1(this._element).addClass(ClassName.COLLAPSING).removeClass(ClassName.COLLAPSE).removeClass(ClassName.SHOW);
        var triggerArrayLength = this._triggerArray.length;

        if (triggerArrayLength > 0) {
          for (var i = 0; i < triggerArrayLength; i++) {
            var trigger = this._triggerArray[i];
            var selector = Util.getSelectorFromElement(trigger);

            if (selector !== null) {
              var $elem = $$$1([].slice.call(document.querySelectorAll(selector)));

              if (!$elem.hasClass(ClassName.SHOW)) {
                $$$1(trigger).addClass(ClassName.COLLAPSED).attr('aria-expanded', false);
              }
            }
          }
        }

        this.setTransitioning(true);

        var complete = function complete() {
          _this2.setTransitioning(false);

          $$$1(_this2._element).removeClass(ClassName.COLLAPSING).addClass(ClassName.COLLAPSE).trigger(Event.HIDDEN);
        };

        this._element.style[dimension] = '';
        var transitionDuration = Util.getTransitionDurationFromElement(this._element);
        $$$1(this._element).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
      };

      _proto.setTransitioning = function setTransitioning(isTransitioning) {
        this._isTransitioning = isTransitioning;
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        this._config = null;
        this._parent = null;
        this._element = null;
        this._triggerArray = null;
        this._isTransitioning = null;
      }; // Private


      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, config);
        config.toggle = Boolean(config.toggle); // Coerce string values

        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };

      _proto._getDimension = function _getDimension() {
        var hasWidth = $$$1(this._element).hasClass(Dimension.WIDTH);
        return hasWidth ? Dimension.WIDTH : Dimension.HEIGHT;
      };

      _proto._getParent = function _getParent() {
        var _this3 = this;

        var parent = null;

        if (Util.isElement(this._config.parent)) {
          parent = this._config.parent; // It's a jQuery object

          if (typeof this._config.parent.jquery !== 'undefined') {
            parent = this._config.parent[0];
          }
        } else {
          parent = document.querySelector(this._config.parent);
        }

        var selector = "[data-toggle=\"collapse\"][data-parent=\"" + this._config.parent + "\"]";
        var children = [].slice.call(parent.querySelectorAll(selector));
        $$$1(children).each(function (i, element) {
          _this3._addAriaAndCollapsedClass(Collapse._getTargetFromElement(element), [element]);
        });
        return parent;
      };

      _proto._addAriaAndCollapsedClass = function _addAriaAndCollapsedClass(element, triggerArray) {
        if (element) {
          var isOpen = $$$1(element).hasClass(ClassName.SHOW);

          if (triggerArray.length) {
            $$$1(triggerArray).toggleClass(ClassName.COLLAPSED, !isOpen).attr('aria-expanded', isOpen);
          }
        }
      }; // Static


      Collapse._getTargetFromElement = function _getTargetFromElement(element) {
        var selector = Util.getSelectorFromElement(element);
        return selector ? document.querySelector(selector) : null;
      };

      Collapse._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $this = $$$1(this);
          var data = $this.data(DATA_KEY);

          var _config = _objectSpread({}, Default, $this.data(), typeof config === 'object' && config ? config : {});

          if (!data && _config.toggle && /show|hide/.test(config)) {
            _config.toggle = false;
          }

          if (!data) {
            data = new Collapse(this, _config);
            $this.data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config]();
          }
        });
      };

      _createClass(Collapse, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);

      return Collapse;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
      // preventDefault only for <a> elements (which change the URL) not inside the collapsible element
      if (event.currentTarget.tagName === 'A') {
        event.preventDefault();
      }

      var $trigger = $$$1(this);
      var selector = Util.getSelectorFromElement(this);
      var selectors = [].slice.call(document.querySelectorAll(selector));
      $$$1(selectors).each(function () {
        var $target = $$$1(this);
        var data = $target.data(DATA_KEY);
        var config = data ? 'toggle' : $trigger.data();

        Collapse._jQueryInterface.call($target, config);
      });
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Collapse._jQueryInterface;
    $$$1.fn[NAME].Constructor = Collapse;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Collapse._jQueryInterface;
    };

    return Collapse;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): dropdown.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Dropdown = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'dropdown';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.dropdown';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key

    var SPACE_KEYCODE = 32; // KeyboardEvent.which value for space key

    var TAB_KEYCODE = 9; // KeyboardEvent.which value for tab key

    var ARROW_UP_KEYCODE = 38; // KeyboardEvent.which value for up arrow key

    var ARROW_DOWN_KEYCODE = 40; // KeyboardEvent.which value for down arrow key

    var RIGHT_MOUSE_BUTTON_WHICH = 3; // MouseEvent.which value for the right button (assuming a right-handed mouse)

    var REGEXP_KEYDOWN = new RegExp(ARROW_UP_KEYCODE + "|" + ARROW_DOWN_KEYCODE + "|" + ESCAPE_KEYCODE);
    var Event = {
      HIDE: "hide" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY,
      CLICK: "click" + EVENT_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY,
      KEYDOWN_DATA_API: "keydown" + EVENT_KEY + DATA_API_KEY,
      KEYUP_DATA_API: "keyup" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      DISABLED: 'disabled',
      SHOW: 'show',
      DROPUP: 'dropup',
      DROPRIGHT: 'dropright',
      DROPLEFT: 'dropleft',
      MENURIGHT: 'dropdown-menu-right',
      MENULEFT: 'dropdown-menu-left',
      POSITION_STATIC: 'position-static'
    };
    var Selector = {
      DATA_TOGGLE: '[data-toggle="dropdown"]',
      FORM_CHILD: '.dropdown form',
      MENU: '.dropdown-menu',
      NAVBAR_NAV: '.navbar-nav',
      VISIBLE_ITEMS: '.dropdown-menu .dropdown-item:not(.disabled):not(:disabled)'
    };
    var AttachmentMap = {
      TOP: 'top-start',
      TOPEND: 'top-end',
      BOTTOM: 'bottom-start',
      BOTTOMEND: 'bottom-end',
      RIGHT: 'right-start',
      RIGHTEND: 'right-end',
      LEFT: 'left-start',
      LEFTEND: 'left-end'
    };
    var Default = {
      offset: 0,
      flip: true,
      boundary: 'scrollParent',
      reference: 'toggle',
      display: 'dynamic'
    };
    var DefaultType = {
      offset: '(number|string|function)',
      flip: 'boolean',
      boundary: '(string|element)',
      reference: '(string|element)',
      display: 'string'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Dropdown =
    /*#__PURE__*/
    function () {
      function Dropdown(element, config) {
        this._element = element;
        this._popper = null;
        this._config = this._getConfig(config);
        this._menu = this._getMenuElement();
        this._inNavbar = this._detectNavbar();

        this._addEventListeners();
      } // Getters


      var _proto = Dropdown.prototype;

      // Public
      _proto.toggle = function toggle() {
        if (this._element.disabled || $$$1(this._element).hasClass(ClassName.DISABLED)) {
          return;
        }

        var parent = Dropdown._getParentFromElement(this._element);

        var isActive = $$$1(this._menu).hasClass(ClassName.SHOW);

        Dropdown._clearMenus();

        if (isActive) {
          return;
        }

        var relatedTarget = {
          relatedTarget: this._element
        };
        var showEvent = $$$1.Event(Event.SHOW, relatedTarget);
        $$$1(parent).trigger(showEvent);

        if (showEvent.isDefaultPrevented()) {
          return;
        } // Disable totally Popper.js for Dropdown in Navbar


        if (!this._inNavbar) {
          /**
           * Check for Popper dependency
           * Popper - https://popper.js.org
           */
          if (typeof Popper === 'undefined') {
            throw new TypeError('Bootstrap dropdown require Popper.js (https://popper.js.org)');
          }

          var referenceElement = this._element;

          if (this._config.reference === 'parent') {
            referenceElement = parent;
          } else if (Util.isElement(this._config.reference)) {
            referenceElement = this._config.reference; // Check if it's jQuery element

            if (typeof this._config.reference.jquery !== 'undefined') {
              referenceElement = this._config.reference[0];
            }
          } // If boundary is not `scrollParent`, then set position to `static`
          // to allow the menu to "escape" the scroll parent's boundaries
          // https://github.com/twbs/bootstrap/issues/24251


          if (this._config.boundary !== 'scrollParent') {
            $$$1(parent).addClass(ClassName.POSITION_STATIC);
          }

          this._popper = new Popper(referenceElement, this._menu, this._getPopperConfig());
        } // If this is a touch-enabled device we add extra
        // empty mouseover listeners to the body's immediate children;
        // only needed because of broken event delegation on iOS
        // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html


        if ('ontouchstart' in document.documentElement && $$$1(parent).closest(Selector.NAVBAR_NAV).length === 0) {
          $$$1(document.body).children().on('mouseover', null, $$$1.noop);
        }

        this._element.focus();

        this._element.setAttribute('aria-expanded', true);

        $$$1(this._menu).toggleClass(ClassName.SHOW);
        $$$1(parent).toggleClass(ClassName.SHOW).trigger($$$1.Event(Event.SHOWN, relatedTarget));
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        $$$1(this._element).off(EVENT_KEY);
        this._element = null;
        this._menu = null;

        if (this._popper !== null) {
          this._popper.destroy();

          this._popper = null;
        }
      };

      _proto.update = function update() {
        this._inNavbar = this._detectNavbar();

        if (this._popper !== null) {
          this._popper.scheduleUpdate();
        }
      }; // Private


      _proto._addEventListeners = function _addEventListeners() {
        var _this = this;

        $$$1(this._element).on(Event.CLICK, function (event) {
          event.preventDefault();
          event.stopPropagation();

          _this.toggle();
        });
      };

      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, this.constructor.Default, $$$1(this._element).data(), config);
        Util.typeCheckConfig(NAME, config, this.constructor.DefaultType);
        return config;
      };

      _proto._getMenuElement = function _getMenuElement() {
        if (!this._menu) {
          var parent = Dropdown._getParentFromElement(this._element);

          if (parent) {
            this._menu = parent.querySelector(Selector.MENU);
          }
        }

        return this._menu;
      };

      _proto._getPlacement = function _getPlacement() {
        var $parentDropdown = $$$1(this._element.parentNode);
        var placement = AttachmentMap.BOTTOM; // Handle dropup

        if ($parentDropdown.hasClass(ClassName.DROPUP)) {
          placement = AttachmentMap.TOP;

          if ($$$1(this._menu).hasClass(ClassName.MENURIGHT)) {
            placement = AttachmentMap.TOPEND;
          }
        } else if ($parentDropdown.hasClass(ClassName.DROPRIGHT)) {
          placement = AttachmentMap.RIGHT;
        } else if ($parentDropdown.hasClass(ClassName.DROPLEFT)) {
          placement = AttachmentMap.LEFT;
        } else if ($$$1(this._menu).hasClass(ClassName.MENURIGHT)) {
          placement = AttachmentMap.BOTTOMEND;
        }

        return placement;
      };

      _proto._detectNavbar = function _detectNavbar() {
        return $$$1(this._element).closest('.navbar').length > 0;
      };

      _proto._getPopperConfig = function _getPopperConfig() {
        var _this2 = this;

        var offsetConf = {};

        if (typeof this._config.offset === 'function') {
          offsetConf.fn = function (data) {
            data.offsets = _objectSpread({}, data.offsets, _this2._config.offset(data.offsets) || {});
            return data;
          };
        } else {
          offsetConf.offset = this._config.offset;
        }

        var popperConfig = {
          placement: this._getPlacement(),
          modifiers: {
            offset: offsetConf,
            flip: {
              enabled: this._config.flip
            },
            preventOverflow: {
              boundariesElement: this._config.boundary
            }
          } // Disable Popper.js if we have a static display

        };

        if (this._config.display === 'static') {
          popperConfig.modifiers.applyStyle = {
            enabled: false
          };
        }

        return popperConfig;
      }; // Static


      Dropdown._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          var _config = typeof config === 'object' ? config : null;

          if (!data) {
            data = new Dropdown(this, _config);
            $$$1(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config]();
          }
        });
      };

      Dropdown._clearMenus = function _clearMenus(event) {
        if (event && (event.which === RIGHT_MOUSE_BUTTON_WHICH || event.type === 'keyup' && event.which !== TAB_KEYCODE)) {
          return;
        }

        var toggles = [].slice.call(document.querySelectorAll(Selector.DATA_TOGGLE));

        for (var i = 0, len = toggles.length; i < len; i++) {
          var parent = Dropdown._getParentFromElement(toggles[i]);

          var context = $$$1(toggles[i]).data(DATA_KEY);
          var relatedTarget = {
            relatedTarget: toggles[i]
          };

          if (event && event.type === 'click') {
            relatedTarget.clickEvent = event;
          }

          if (!context) {
            continue;
          }

          var dropdownMenu = context._menu;

          if (!$$$1(parent).hasClass(ClassName.SHOW)) {
            continue;
          }

          if (event && (event.type === 'click' && /input|textarea/i.test(event.target.tagName) || event.type === 'keyup' && event.which === TAB_KEYCODE) && $$$1.contains(parent, event.target)) {
            continue;
          }

          var hideEvent = $$$1.Event(Event.HIDE, relatedTarget);
          $$$1(parent).trigger(hideEvent);

          if (hideEvent.isDefaultPrevented()) {
            continue;
          } // If this is a touch-enabled device we remove the extra
          // empty mouseover listeners we added for iOS support


          if ('ontouchstart' in document.documentElement) {
            $$$1(document.body).children().off('mouseover', null, $$$1.noop);
          }

          toggles[i].setAttribute('aria-expanded', 'false');
          $$$1(dropdownMenu).removeClass(ClassName.SHOW);
          $$$1(parent).removeClass(ClassName.SHOW).trigger($$$1.Event(Event.HIDDEN, relatedTarget));
        }
      };

      Dropdown._getParentFromElement = function _getParentFromElement(element) {
        var parent;
        var selector = Util.getSelectorFromElement(element);

        if (selector) {
          parent = document.querySelector(selector);
        }

        return parent || element.parentNode;
      }; // eslint-disable-next-line complexity


      Dropdown._dataApiKeydownHandler = function _dataApiKeydownHandler(event) {
        // If not input/textarea:
        //  - And not a key in REGEXP_KEYDOWN => not a dropdown command
        // If input/textarea:
        //  - If space key => not a dropdown command
        //  - If key is other than escape
        //    - If key is not up or down => not a dropdown command
        //    - If trigger inside the menu => not a dropdown command
        if (/input|textarea/i.test(event.target.tagName) ? event.which === SPACE_KEYCODE || event.which !== ESCAPE_KEYCODE && (event.which !== ARROW_DOWN_KEYCODE && event.which !== ARROW_UP_KEYCODE || $$$1(event.target).closest(Selector.MENU).length) : !REGEXP_KEYDOWN.test(event.which)) {
          return;
        }

        event.preventDefault();
        event.stopPropagation();

        if (this.disabled || $$$1(this).hasClass(ClassName.DISABLED)) {
          return;
        }

        var parent = Dropdown._getParentFromElement(this);

        var isActive = $$$1(parent).hasClass(ClassName.SHOW);

        if (!isActive && (event.which !== ESCAPE_KEYCODE || event.which !== SPACE_KEYCODE) || isActive && (event.which === ESCAPE_KEYCODE || event.which === SPACE_KEYCODE)) {
          if (event.which === ESCAPE_KEYCODE) {
            var toggle = parent.querySelector(Selector.DATA_TOGGLE);
            $$$1(toggle).trigger('focus');
          }

          $$$1(this).trigger('click');
          return;
        }

        var items = [].slice.call(parent.querySelectorAll(Selector.VISIBLE_ITEMS));

        if (items.length === 0) {
          return;
        }

        var index = items.indexOf(event.target);

        if (event.which === ARROW_UP_KEYCODE && index > 0) {
          // Up
          index--;
        }

        if (event.which === ARROW_DOWN_KEYCODE && index < items.length - 1) {
          // Down
          index++;
        }

        if (index < 0) {
          index = 0;
        }

        items[index].focus();
      };

      _createClass(Dropdown, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType;
        }
      }]);

      return Dropdown;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.KEYDOWN_DATA_API, Selector.DATA_TOGGLE, Dropdown._dataApiKeydownHandler).on(Event.KEYDOWN_DATA_API, Selector.MENU, Dropdown._dataApiKeydownHandler).on(Event.CLICK_DATA_API + " " + Event.KEYUP_DATA_API, Dropdown._clearMenus).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
      event.preventDefault();
      event.stopPropagation();

      Dropdown._jQueryInterface.call($$$1(this), 'toggle');
    }).on(Event.CLICK_DATA_API, Selector.FORM_CHILD, function (e) {
      e.stopPropagation();
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Dropdown._jQueryInterface;
    $$$1.fn[NAME].Constructor = Dropdown;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Dropdown._jQueryInterface;
    };

    return Dropdown;
  }($, Popper);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): modal.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Modal = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'modal';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.modal';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var ESCAPE_KEYCODE = 27; // KeyboardEvent.which value for Escape (Esc) key

    var Default = {
      backdrop: true,
      keyboard: true,
      focus: true,
      show: true
    };
    var DefaultType = {
      backdrop: '(boolean|string)',
      keyboard: 'boolean',
      focus: 'boolean',
      show: 'boolean'
    };
    var Event = {
      HIDE: "hide" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY,
      FOCUSIN: "focusin" + EVENT_KEY,
      RESIZE: "resize" + EVENT_KEY,
      CLICK_DISMISS: "click.dismiss" + EVENT_KEY,
      KEYDOWN_DISMISS: "keydown.dismiss" + EVENT_KEY,
      MOUSEUP_DISMISS: "mouseup.dismiss" + EVENT_KEY,
      MOUSEDOWN_DISMISS: "mousedown.dismiss" + EVENT_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      SCROLLBAR_MEASURER: 'modal-scrollbar-measure',
      BACKDROP: 'modal-backdrop',
      OPEN: 'modal-open',
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector = {
      DIALOG: '.modal-dialog',
      DATA_TOGGLE: '[data-toggle="modal"]',
      DATA_DISMISS: '[data-dismiss="modal"]',
      FIXED_CONTENT: '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top',
      STICKY_CONTENT: '.sticky-top'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Modal =
    /*#__PURE__*/
    function () {
      function Modal(element, config) {
        this._config = this._getConfig(config);
        this._element = element;
        this._dialog = element.querySelector(Selector.DIALOG);
        this._backdrop = null;
        this._isShown = false;
        this._isBodyOverflowing = false;
        this._ignoreBackdropClick = false;
        this._scrollbarWidth = 0;
      } // Getters


      var _proto = Modal.prototype;

      // Public
      _proto.toggle = function toggle(relatedTarget) {
        return this._isShown ? this.hide() : this.show(relatedTarget);
      };

      _proto.show = function show(relatedTarget) {
        var _this = this;

        if (this._isTransitioning || this._isShown) {
          return;
        }

        if ($$$1(this._element).hasClass(ClassName.FADE)) {
          this._isTransitioning = true;
        }

        var showEvent = $$$1.Event(Event.SHOW, {
          relatedTarget: relatedTarget
        });
        $$$1(this._element).trigger(showEvent);

        if (this._isShown || showEvent.isDefaultPrevented()) {
          return;
        }

        this._isShown = true;

        this._checkScrollbar();

        this._setScrollbar();

        this._adjustDialog();

        $$$1(document.body).addClass(ClassName.OPEN);

        this._setEscapeEvent();

        this._setResizeEvent();

        $$$1(this._element).on(Event.CLICK_DISMISS, Selector.DATA_DISMISS, function (event) {
          return _this.hide(event);
        });
        $$$1(this._dialog).on(Event.MOUSEDOWN_DISMISS, function () {
          $$$1(_this._element).one(Event.MOUSEUP_DISMISS, function (event) {
            if ($$$1(event.target).is(_this._element)) {
              _this._ignoreBackdropClick = true;
            }
          });
        });

        this._showBackdrop(function () {
          return _this._showElement(relatedTarget);
        });
      };

      _proto.hide = function hide(event) {
        var _this2 = this;

        if (event) {
          event.preventDefault();
        }

        if (this._isTransitioning || !this._isShown) {
          return;
        }

        var hideEvent = $$$1.Event(Event.HIDE);
        $$$1(this._element).trigger(hideEvent);

        if (!this._isShown || hideEvent.isDefaultPrevented()) {
          return;
        }

        this._isShown = false;
        var transition = $$$1(this._element).hasClass(ClassName.FADE);

        if (transition) {
          this._isTransitioning = true;
        }

        this._setEscapeEvent();

        this._setResizeEvent();

        $$$1(document).off(Event.FOCUSIN);
        $$$1(this._element).removeClass(ClassName.SHOW);
        $$$1(this._element).off(Event.CLICK_DISMISS);
        $$$1(this._dialog).off(Event.MOUSEDOWN_DISMISS);

        if (transition) {
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $$$1(this._element).one(Util.TRANSITION_END, function (event) {
            return _this2._hideModal(event);
          }).emulateTransitionEnd(transitionDuration);
        } else {
          this._hideModal();
        }
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        $$$1(window, document, this._element, this._backdrop).off(EVENT_KEY);
        this._config = null;
        this._element = null;
        this._dialog = null;
        this._backdrop = null;
        this._isShown = null;
        this._isBodyOverflowing = null;
        this._ignoreBackdropClick = null;
        this._scrollbarWidth = null;
      };

      _proto.handleUpdate = function handleUpdate() {
        this._adjustDialog();
      }; // Private


      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, config);
        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };

      _proto._showElement = function _showElement(relatedTarget) {
        var _this3 = this;

        var transition = $$$1(this._element).hasClass(ClassName.FADE);

        if (!this._element.parentNode || this._element.parentNode.nodeType !== Node.ELEMENT_NODE) {
          // Don't move modal's DOM position
          document.body.appendChild(this._element);
        }

        this._element.style.display = 'block';

        this._element.removeAttribute('aria-hidden');

        this._element.scrollTop = 0;

        if (transition) {
          Util.reflow(this._element);
        }

        $$$1(this._element).addClass(ClassName.SHOW);

        if (this._config.focus) {
          this._enforceFocus();
        }

        var shownEvent = $$$1.Event(Event.SHOWN, {
          relatedTarget: relatedTarget
        });

        var transitionComplete = function transitionComplete() {
          if (_this3._config.focus) {
            _this3._element.focus();
          }

          _this3._isTransitioning = false;
          $$$1(_this3._element).trigger(shownEvent);
        };

        if (transition) {
          var transitionDuration = Util.getTransitionDurationFromElement(this._element);
          $$$1(this._dialog).one(Util.TRANSITION_END, transitionComplete).emulateTransitionEnd(transitionDuration);
        } else {
          transitionComplete();
        }
      };

      _proto._enforceFocus = function _enforceFocus() {
        var _this4 = this;

        $$$1(document).off(Event.FOCUSIN) // Guard against infinite focus loop
        .on(Event.FOCUSIN, function (event) {
          if (document !== event.target && _this4._element !== event.target && $$$1(_this4._element).has(event.target).length === 0) {
            _this4._element.focus();
          }
        });
      };

      _proto._setEscapeEvent = function _setEscapeEvent() {
        var _this5 = this;

        if (this._isShown && this._config.keyboard) {
          $$$1(this._element).on(Event.KEYDOWN_DISMISS, function (event) {
            if (event.which === ESCAPE_KEYCODE) {
              event.preventDefault();

              _this5.hide();
            }
          });
        } else if (!this._isShown) {
          $$$1(this._element).off(Event.KEYDOWN_DISMISS);
        }
      };

      _proto._setResizeEvent = function _setResizeEvent() {
        var _this6 = this;

        if (this._isShown) {
          $$$1(window).on(Event.RESIZE, function (event) {
            return _this6.handleUpdate(event);
          });
        } else {
          $$$1(window).off(Event.RESIZE);
        }
      };

      _proto._hideModal = function _hideModal() {
        var _this7 = this;

        this._element.style.display = 'none';

        this._element.setAttribute('aria-hidden', true);

        this._isTransitioning = false;

        this._showBackdrop(function () {
          $$$1(document.body).removeClass(ClassName.OPEN);

          _this7._resetAdjustments();

          _this7._resetScrollbar();

          $$$1(_this7._element).trigger(Event.HIDDEN);
        });
      };

      _proto._removeBackdrop = function _removeBackdrop() {
        if (this._backdrop) {
          $$$1(this._backdrop).remove();
          this._backdrop = null;
        }
      };

      _proto._showBackdrop = function _showBackdrop(callback) {
        var _this8 = this;

        var animate = $$$1(this._element).hasClass(ClassName.FADE) ? ClassName.FADE : '';

        if (this._isShown && this._config.backdrop) {
          this._backdrop = document.createElement('div');
          this._backdrop.className = ClassName.BACKDROP;

          if (animate) {
            this._backdrop.classList.add(animate);
          }

          $$$1(this._backdrop).appendTo(document.body);
          $$$1(this._element).on(Event.CLICK_DISMISS, function (event) {
            if (_this8._ignoreBackdropClick) {
              _this8._ignoreBackdropClick = false;
              return;
            }

            if (event.target !== event.currentTarget) {
              return;
            }

            if (_this8._config.backdrop === 'static') {
              _this8._element.focus();
            } else {
              _this8.hide();
            }
          });

          if (animate) {
            Util.reflow(this._backdrop);
          }

          $$$1(this._backdrop).addClass(ClassName.SHOW);

          if (!callback) {
            return;
          }

          if (!animate) {
            callback();
            return;
          }

          var backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);
          $$$1(this._backdrop).one(Util.TRANSITION_END, callback).emulateTransitionEnd(backdropTransitionDuration);
        } else if (!this._isShown && this._backdrop) {
          $$$1(this._backdrop).removeClass(ClassName.SHOW);

          var callbackRemove = function callbackRemove() {
            _this8._removeBackdrop();

            if (callback) {
              callback();
            }
          };

          if ($$$1(this._element).hasClass(ClassName.FADE)) {
            var _backdropTransitionDuration = Util.getTransitionDurationFromElement(this._backdrop);

            $$$1(this._backdrop).one(Util.TRANSITION_END, callbackRemove).emulateTransitionEnd(_backdropTransitionDuration);
          } else {
            callbackRemove();
          }
        } else if (callback) {
          callback();
        }
      }; // ----------------------------------------------------------------------
      // the following methods are used to handle overflowing modals
      // todo (fat): these should probably be refactored out of modal.js
      // ----------------------------------------------------------------------


      _proto._adjustDialog = function _adjustDialog() {
        var isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight;

        if (!this._isBodyOverflowing && isModalOverflowing) {
          this._element.style.paddingLeft = this._scrollbarWidth + "px";
        }

        if (this._isBodyOverflowing && !isModalOverflowing) {
          this._element.style.paddingRight = this._scrollbarWidth + "px";
        }
      };

      _proto._resetAdjustments = function _resetAdjustments() {
        this._element.style.paddingLeft = '';
        this._element.style.paddingRight = '';
      };

      _proto._checkScrollbar = function _checkScrollbar() {
        var rect = document.body.getBoundingClientRect();
        this._isBodyOverflowing = rect.left + rect.right < window.innerWidth;
        this._scrollbarWidth = this._getScrollbarWidth();
      };

      _proto._setScrollbar = function _setScrollbar() {
        var _this9 = this;

        if (this._isBodyOverflowing) {
          // Note: DOMNode.style.paddingRight returns the actual value or '' if not set
          //   while $(DOMNode).css('padding-right') returns the calculated value or 0 if not set
          var fixedContent = [].slice.call(document.querySelectorAll(Selector.FIXED_CONTENT));
          var stickyContent = [].slice.call(document.querySelectorAll(Selector.STICKY_CONTENT)); // Adjust fixed content padding

          $$$1(fixedContent).each(function (index, element) {
            var actualPadding = element.style.paddingRight;
            var calculatedPadding = $$$1(element).css('padding-right');
            $$$1(element).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + _this9._scrollbarWidth + "px");
          }); // Adjust sticky content margin

          $$$1(stickyContent).each(function (index, element) {
            var actualMargin = element.style.marginRight;
            var calculatedMargin = $$$1(element).css('margin-right');
            $$$1(element).data('margin-right', actualMargin).css('margin-right', parseFloat(calculatedMargin) - _this9._scrollbarWidth + "px");
          }); // Adjust body padding

          var actualPadding = document.body.style.paddingRight;
          var calculatedPadding = $$$1(document.body).css('padding-right');
          $$$1(document.body).data('padding-right', actualPadding).css('padding-right', parseFloat(calculatedPadding) + this._scrollbarWidth + "px");
        }
      };

      _proto._resetScrollbar = function _resetScrollbar() {
        // Restore fixed content padding
        var fixedContent = [].slice.call(document.querySelectorAll(Selector.FIXED_CONTENT));
        $$$1(fixedContent).each(function (index, element) {
          var padding = $$$1(element).data('padding-right');
          $$$1(element).removeData('padding-right');
          element.style.paddingRight = padding ? padding : '';
        }); // Restore sticky content

        var elements = [].slice.call(document.querySelectorAll("" + Selector.STICKY_CONTENT));
        $$$1(elements).each(function (index, element) {
          var margin = $$$1(element).data('margin-right');

          if (typeof margin !== 'undefined') {
            $$$1(element).css('margin-right', margin).removeData('margin-right');
          }
        }); // Restore body padding

        var padding = $$$1(document.body).data('padding-right');
        $$$1(document.body).removeData('padding-right');
        document.body.style.paddingRight = padding ? padding : '';
      };

      _proto._getScrollbarWidth = function _getScrollbarWidth() {
        // thx d.walsh
        var scrollDiv = document.createElement('div');
        scrollDiv.className = ClassName.SCROLLBAR_MEASURER;
        document.body.appendChild(scrollDiv);
        var scrollbarWidth = scrollDiv.getBoundingClientRect().width - scrollDiv.clientWidth;
        document.body.removeChild(scrollDiv);
        return scrollbarWidth;
      }; // Static


      Modal._jQueryInterface = function _jQueryInterface(config, relatedTarget) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          var _config = _objectSpread({}, Default, $$$1(this).data(), typeof config === 'object' && config ? config : {});

          if (!data) {
            data = new Modal(this, _config);
            $$$1(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config](relatedTarget);
          } else if (_config.show) {
            data.show(relatedTarget);
          }
        });
      };

      _createClass(Modal, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);

      return Modal;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
      var _this10 = this;

      var target;
      var selector = Util.getSelectorFromElement(this);

      if (selector) {
        target = document.querySelector(selector);
      }

      var config = $$$1(target).data(DATA_KEY) ? 'toggle' : _objectSpread({}, $$$1(target).data(), $$$1(this).data());

      if (this.tagName === 'A' || this.tagName === 'AREA') {
        event.preventDefault();
      }

      var $target = $$$1(target).one(Event.SHOW, function (showEvent) {
        if (showEvent.isDefaultPrevented()) {
          // Only register focus restorer if modal will actually get shown
          return;
        }

        $target.one(Event.HIDDEN, function () {
          if ($$$1(_this10).is(':visible')) {
            _this10.focus();
          }
        });
      });

      Modal._jQueryInterface.call($$$1(target), config, this);
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Modal._jQueryInterface;
    $$$1.fn[NAME].Constructor = Modal;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Modal._jQueryInterface;
    };

    return Modal;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): tooltip.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Tooltip = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'tooltip';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.tooltip';
    var EVENT_KEY = "." + DATA_KEY;
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var CLASS_PREFIX = 'bs-tooltip';
    var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');
    var DefaultType = {
      animation: 'boolean',
      template: 'string',
      title: '(string|element|function)',
      trigger: 'string',
      delay: '(number|object)',
      html: 'boolean',
      selector: '(string|boolean)',
      placement: '(string|function)',
      offset: '(number|string)',
      container: '(string|element|boolean)',
      fallbackPlacement: '(string|array)',
      boundary: '(string|element)'
    };
    var AttachmentMap = {
      AUTO: 'auto',
      TOP: 'top',
      RIGHT: 'right',
      BOTTOM: 'bottom',
      LEFT: 'left'
    };
    var Default = {
      animation: true,
      template: '<div class="tooltip" role="tooltip">' + '<div class="arrow"></div>' + '<div class="tooltip-inner"></div></div>',
      trigger: 'hover focus',
      title: '',
      delay: 0,
      html: false,
      selector: false,
      placement: 'top',
      offset: 0,
      container: false,
      fallbackPlacement: 'flip',
      boundary: 'scrollParent'
    };
    var HoverState = {
      SHOW: 'show',
      OUT: 'out'
    };
    var Event = {
      HIDE: "hide" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY,
      INSERTED: "inserted" + EVENT_KEY,
      CLICK: "click" + EVENT_KEY,
      FOCUSIN: "focusin" + EVENT_KEY,
      FOCUSOUT: "focusout" + EVENT_KEY,
      MOUSEENTER: "mouseenter" + EVENT_KEY,
      MOUSELEAVE: "mouseleave" + EVENT_KEY
    };
    var ClassName = {
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector = {
      TOOLTIP: '.tooltip',
      TOOLTIP_INNER: '.tooltip-inner',
      ARROW: '.arrow'
    };
    var Trigger = {
      HOVER: 'hover',
      FOCUS: 'focus',
      CLICK: 'click',
      MANUAL: 'manual'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Tooltip =
    /*#__PURE__*/
    function () {
      function Tooltip(element, config) {
        /**
         * Check for Popper dependency
         * Popper - https://popper.js.org
         */
        if (typeof Popper === 'undefined') {
          throw new TypeError('Bootstrap tooltips require Popper.js (https://popper.js.org)');
        } // private


        this._isEnabled = true;
        this._timeout = 0;
        this._hoverState = '';
        this._activeTrigger = {};
        this._popper = null; // Protected

        this.element = element;
        this.config = this._getConfig(config);
        this.tip = null;

        this._setListeners();
      } // Getters


      var _proto = Tooltip.prototype;

      // Public
      _proto.enable = function enable() {
        this._isEnabled = true;
      };

      _proto.disable = function disable() {
        this._isEnabled = false;
      };

      _proto.toggleEnabled = function toggleEnabled() {
        this._isEnabled = !this._isEnabled;
      };

      _proto.toggle = function toggle(event) {
        if (!this._isEnabled) {
          return;
        }

        if (event) {
          var dataKey = this.constructor.DATA_KEY;
          var context = $$$1(event.currentTarget).data(dataKey);

          if (!context) {
            context = new this.constructor(event.currentTarget, this._getDelegateConfig());
            $$$1(event.currentTarget).data(dataKey, context);
          }

          context._activeTrigger.click = !context._activeTrigger.click;

          if (context._isWithActiveTrigger()) {
            context._enter(null, context);
          } else {
            context._leave(null, context);
          }
        } else {
          if ($$$1(this.getTipElement()).hasClass(ClassName.SHOW)) {
            this._leave(null, this);

            return;
          }

          this._enter(null, this);
        }
      };

      _proto.dispose = function dispose() {
        clearTimeout(this._timeout);
        $$$1.removeData(this.element, this.constructor.DATA_KEY);
        $$$1(this.element).off(this.constructor.EVENT_KEY);
        $$$1(this.element).closest('.modal').off('hide.bs.modal');

        if (this.tip) {
          $$$1(this.tip).remove();
        }

        this._isEnabled = null;
        this._timeout = null;
        this._hoverState = null;
        this._activeTrigger = null;

        if (this._popper !== null) {
          this._popper.destroy();
        }

        this._popper = null;
        this.element = null;
        this.config = null;
        this.tip = null;
      };

      _proto.show = function show() {
        var _this = this;

        if ($$$1(this.element).css('display') === 'none') {
          throw new Error('Please use show on visible elements');
        }

        var showEvent = $$$1.Event(this.constructor.Event.SHOW);

        if (this.isWithContent() && this._isEnabled) {
          $$$1(this.element).trigger(showEvent);
          var isInTheDom = $$$1.contains(this.element.ownerDocument.documentElement, this.element);

          if (showEvent.isDefaultPrevented() || !isInTheDom) {
            return;
          }

          var tip = this.getTipElement();
          var tipId = Util.getUID(this.constructor.NAME);
          tip.setAttribute('id', tipId);
          this.element.setAttribute('aria-describedby', tipId);
          this.setContent();

          if (this.config.animation) {
            $$$1(tip).addClass(ClassName.FADE);
          }

          var placement = typeof this.config.placement === 'function' ? this.config.placement.call(this, tip, this.element) : this.config.placement;

          var attachment = this._getAttachment(placement);

          this.addAttachmentClass(attachment);
          var container = this.config.container === false ? document.body : $$$1(document).find(this.config.container);
          $$$1(tip).data(this.constructor.DATA_KEY, this);

          if (!$$$1.contains(this.element.ownerDocument.documentElement, this.tip)) {
            $$$1(tip).appendTo(container);
          }

          $$$1(this.element).trigger(this.constructor.Event.INSERTED);
          this._popper = new Popper(this.element, tip, {
            placement: attachment,
            modifiers: {
              offset: {
                offset: this.config.offset
              },
              flip: {
                behavior: this.config.fallbackPlacement
              },
              arrow: {
                element: Selector.ARROW
              },
              preventOverflow: {
                boundariesElement: this.config.boundary
              }
            },
            onCreate: function onCreate(data) {
              if (data.originalPlacement !== data.placement) {
                _this._handlePopperPlacementChange(data);
              }
            },
            onUpdate: function onUpdate(data) {
              _this._handlePopperPlacementChange(data);
            }
          });
          $$$1(tip).addClass(ClassName.SHOW); // If this is a touch-enabled device we add extra
          // empty mouseover listeners to the body's immediate children;
          // only needed because of broken event delegation on iOS
          // https://www.quirksmode.org/blog/archives/2014/02/mouse_event_bub.html

          if ('ontouchstart' in document.documentElement) {
            $$$1(document.body).children().on('mouseover', null, $$$1.noop);
          }

          var complete = function complete() {
            if (_this.config.animation) {
              _this._fixTransition();
            }

            var prevHoverState = _this._hoverState;
            _this._hoverState = null;
            $$$1(_this.element).trigger(_this.constructor.Event.SHOWN);

            if (prevHoverState === HoverState.OUT) {
              _this._leave(null, _this);
            }
          };

          if ($$$1(this.tip).hasClass(ClassName.FADE)) {
            var transitionDuration = Util.getTransitionDurationFromElement(this.tip);
            $$$1(this.tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
          } else {
            complete();
          }
        }
      };

      _proto.hide = function hide(callback) {
        var _this2 = this;

        var tip = this.getTipElement();
        var hideEvent = $$$1.Event(this.constructor.Event.HIDE);

        var complete = function complete() {
          if (_this2._hoverState !== HoverState.SHOW && tip.parentNode) {
            tip.parentNode.removeChild(tip);
          }

          _this2._cleanTipClass();

          _this2.element.removeAttribute('aria-describedby');

          $$$1(_this2.element).trigger(_this2.constructor.Event.HIDDEN);

          if (_this2._popper !== null) {
            _this2._popper.destroy();
          }

          if (callback) {
            callback();
          }
        };

        $$$1(this.element).trigger(hideEvent);

        if (hideEvent.isDefaultPrevented()) {
          return;
        }

        $$$1(tip).removeClass(ClassName.SHOW); // If this is a touch-enabled device we remove the extra
        // empty mouseover listeners we added for iOS support

        if ('ontouchstart' in document.documentElement) {
          $$$1(document.body).children().off('mouseover', null, $$$1.noop);
        }

        this._activeTrigger[Trigger.CLICK] = false;
        this._activeTrigger[Trigger.FOCUS] = false;
        this._activeTrigger[Trigger.HOVER] = false;

        if ($$$1(this.tip).hasClass(ClassName.FADE)) {
          var transitionDuration = Util.getTransitionDurationFromElement(tip);
          $$$1(tip).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }

        this._hoverState = '';
      };

      _proto.update = function update() {
        if (this._popper !== null) {
          this._popper.scheduleUpdate();
        }
      }; // Protected


      _proto.isWithContent = function isWithContent() {
        return Boolean(this.getTitle());
      };

      _proto.addAttachmentClass = function addAttachmentClass(attachment) {
        $$$1(this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
      };

      _proto.getTipElement = function getTipElement() {
        this.tip = this.tip || $$$1(this.config.template)[0];
        return this.tip;
      };

      _proto.setContent = function setContent() {
        var tip = this.getTipElement();
        this.setElementContent($$$1(tip.querySelectorAll(Selector.TOOLTIP_INNER)), this.getTitle());
        $$$1(tip).removeClass(ClassName.FADE + " " + ClassName.SHOW);
      };

      _proto.setElementContent = function setElementContent($element, content) {
        var html = this.config.html;

        if (typeof content === 'object' && (content.nodeType || content.jquery)) {
          // Content is a DOM node or a jQuery
          if (html) {
            if (!$$$1(content).parent().is($element)) {
              $element.empty().append(content);
            }
          } else {
            $element.text($$$1(content).text());
          }
        } else {
          $element[html ? 'html' : 'text'](content);
        }
      };

      _proto.getTitle = function getTitle() {
        var title = this.element.getAttribute('data-original-title');

        if (!title) {
          title = typeof this.config.title === 'function' ? this.config.title.call(this.element) : this.config.title;
        }

        return title;
      }; // Private


      _proto._getAttachment = function _getAttachment(placement) {
        return AttachmentMap[placement.toUpperCase()];
      };

      _proto._setListeners = function _setListeners() {
        var _this3 = this;

        var triggers = this.config.trigger.split(' ');
        triggers.forEach(function (trigger) {
          if (trigger === 'click') {
            $$$1(_this3.element).on(_this3.constructor.Event.CLICK, _this3.config.selector, function (event) {
              return _this3.toggle(event);
            });
          } else if (trigger !== Trigger.MANUAL) {
            var eventIn = trigger === Trigger.HOVER ? _this3.constructor.Event.MOUSEENTER : _this3.constructor.Event.FOCUSIN;
            var eventOut = trigger === Trigger.HOVER ? _this3.constructor.Event.MOUSELEAVE : _this3.constructor.Event.FOCUSOUT;
            $$$1(_this3.element).on(eventIn, _this3.config.selector, function (event) {
              return _this3._enter(event);
            }).on(eventOut, _this3.config.selector, function (event) {
              return _this3._leave(event);
            });
          }

          $$$1(_this3.element).closest('.modal').on('hide.bs.modal', function () {
            return _this3.hide();
          });
        });

        if (this.config.selector) {
          this.config = _objectSpread({}, this.config, {
            trigger: 'manual',
            selector: ''
          });
        } else {
          this._fixTitle();
        }
      };

      _proto._fixTitle = function _fixTitle() {
        var titleType = typeof this.element.getAttribute('data-original-title');

        if (this.element.getAttribute('title') || titleType !== 'string') {
          this.element.setAttribute('data-original-title', this.element.getAttribute('title') || '');
          this.element.setAttribute('title', '');
        }
      };

      _proto._enter = function _enter(event, context) {
        var dataKey = this.constructor.DATA_KEY;
        context = context || $$$1(event.currentTarget).data(dataKey);

        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $$$1(event.currentTarget).data(dataKey, context);
        }

        if (event) {
          context._activeTrigger[event.type === 'focusin' ? Trigger.FOCUS : Trigger.HOVER] = true;
        }

        if ($$$1(context.getTipElement()).hasClass(ClassName.SHOW) || context._hoverState === HoverState.SHOW) {
          context._hoverState = HoverState.SHOW;
          return;
        }

        clearTimeout(context._timeout);
        context._hoverState = HoverState.SHOW;

        if (!context.config.delay || !context.config.delay.show) {
          context.show();
          return;
        }

        context._timeout = setTimeout(function () {
          if (context._hoverState === HoverState.SHOW) {
            context.show();
          }
        }, context.config.delay.show);
      };

      _proto._leave = function _leave(event, context) {
        var dataKey = this.constructor.DATA_KEY;
        context = context || $$$1(event.currentTarget).data(dataKey);

        if (!context) {
          context = new this.constructor(event.currentTarget, this._getDelegateConfig());
          $$$1(event.currentTarget).data(dataKey, context);
        }

        if (event) {
          context._activeTrigger[event.type === 'focusout' ? Trigger.FOCUS : Trigger.HOVER] = false;
        }

        if (context._isWithActiveTrigger()) {
          return;
        }

        clearTimeout(context._timeout);
        context._hoverState = HoverState.OUT;

        if (!context.config.delay || !context.config.delay.hide) {
          context.hide();
          return;
        }

        context._timeout = setTimeout(function () {
          if (context._hoverState === HoverState.OUT) {
            context.hide();
          }
        }, context.config.delay.hide);
      };

      _proto._isWithActiveTrigger = function _isWithActiveTrigger() {
        for (var trigger in this._activeTrigger) {
          if (this._activeTrigger[trigger]) {
            return true;
          }
        }

        return false;
      };

      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, this.constructor.Default, $$$1(this.element).data(), typeof config === 'object' && config ? config : {});

        if (typeof config.delay === 'number') {
          config.delay = {
            show: config.delay,
            hide: config.delay
          };
        }

        if (typeof config.title === 'number') {
          config.title = config.title.toString();
        }

        if (typeof config.content === 'number') {
          config.content = config.content.toString();
        }

        Util.typeCheckConfig(NAME, config, this.constructor.DefaultType);
        return config;
      };

      _proto._getDelegateConfig = function _getDelegateConfig() {
        var config = {};

        if (this.config) {
          for (var key in this.config) {
            if (this.constructor.Default[key] !== this.config[key]) {
              config[key] = this.config[key];
            }
          }
        }

        return config;
      };

      _proto._cleanTipClass = function _cleanTipClass() {
        var $tip = $$$1(this.getTipElement());
        var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);

        if (tabClass !== null && tabClass.length) {
          $tip.removeClass(tabClass.join(''));
        }
      };

      _proto._handlePopperPlacementChange = function _handlePopperPlacementChange(popperData) {
        var popperInstance = popperData.instance;
        this.tip = popperInstance.popper;

        this._cleanTipClass();

        this.addAttachmentClass(this._getAttachment(popperData.placement));
      };

      _proto._fixTransition = function _fixTransition() {
        var tip = this.getTipElement();
        var initConfigAnimation = this.config.animation;

        if (tip.getAttribute('x-placement') !== null) {
          return;
        }

        $$$1(tip).removeClass(ClassName.FADE);
        this.config.animation = false;
        this.hide();
        this.show();
        this.config.animation = initConfigAnimation;
      }; // Static


      Tooltip._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          var _config = typeof config === 'object' && config;

          if (!data && /dispose|hide/.test(config)) {
            return;
          }

          if (!data) {
            data = new Tooltip(this, _config);
            $$$1(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config]();
          }
        });
      };

      _createClass(Tooltip, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }, {
        key: "NAME",
        get: function get() {
          return NAME;
        }
      }, {
        key: "DATA_KEY",
        get: function get() {
          return DATA_KEY;
        }
      }, {
        key: "Event",
        get: function get() {
          return Event;
        }
      }, {
        key: "EVENT_KEY",
        get: function get() {
          return EVENT_KEY;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType;
        }
      }]);

      return Tooltip;
    }();
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */


    $$$1.fn[NAME] = Tooltip._jQueryInterface;
    $$$1.fn[NAME].Constructor = Tooltip;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Tooltip._jQueryInterface;
    };

    return Tooltip;
  }($, Popper);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): popover.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Popover = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'popover';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.popover';
    var EVENT_KEY = "." + DATA_KEY;
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var CLASS_PREFIX = 'bs-popover';
    var BSCLS_PREFIX_REGEX = new RegExp("(^|\\s)" + CLASS_PREFIX + "\\S+", 'g');

    var Default = _objectSpread({}, Tooltip.Default, {
      placement: 'right',
      trigger: 'click',
      content: '',
      template: '<div class="popover" role="tooltip">' + '<div class="arrow"></div>' + '<h3 class="popover-header"></h3>' + '<div class="popover-body"></div></div>'
    });

    var DefaultType = _objectSpread({}, Tooltip.DefaultType, {
      content: '(string|element|function)'
    });

    var ClassName = {
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector = {
      TITLE: '.popover-header',
      CONTENT: '.popover-body'
    };
    var Event = {
      HIDE: "hide" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY,
      INSERTED: "inserted" + EVENT_KEY,
      CLICK: "click" + EVENT_KEY,
      FOCUSIN: "focusin" + EVENT_KEY,
      FOCUSOUT: "focusout" + EVENT_KEY,
      MOUSEENTER: "mouseenter" + EVENT_KEY,
      MOUSELEAVE: "mouseleave" + EVENT_KEY
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Popover =
    /*#__PURE__*/
    function (_Tooltip) {
      _inheritsLoose(Popover, _Tooltip);

      function Popover() {
        return _Tooltip.apply(this, arguments) || this;
      }

      var _proto = Popover.prototype;

      // Overrides
      _proto.isWithContent = function isWithContent() {
        return this.getTitle() || this._getContent();
      };

      _proto.addAttachmentClass = function addAttachmentClass(attachment) {
        $$$1(this.getTipElement()).addClass(CLASS_PREFIX + "-" + attachment);
      };

      _proto.getTipElement = function getTipElement() {
        this.tip = this.tip || $$$1(this.config.template)[0];
        return this.tip;
      };

      _proto.setContent = function setContent() {
        var $tip = $$$1(this.getTipElement()); // We use append for html objects to maintain js events

        this.setElementContent($tip.find(Selector.TITLE), this.getTitle());

        var content = this._getContent();

        if (typeof content === 'function') {
          content = content.call(this.element);
        }

        this.setElementContent($tip.find(Selector.CONTENT), content);
        $tip.removeClass(ClassName.FADE + " " + ClassName.SHOW);
      }; // Private


      _proto._getContent = function _getContent() {
        return this.element.getAttribute('data-content') || this.config.content;
      };

      _proto._cleanTipClass = function _cleanTipClass() {
        var $tip = $$$1(this.getTipElement());
        var tabClass = $tip.attr('class').match(BSCLS_PREFIX_REGEX);

        if (tabClass !== null && tabClass.length > 0) {
          $tip.removeClass(tabClass.join(''));
        }
      }; // Static


      Popover._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          var _config = typeof config === 'object' ? config : null;

          if (!data && /destroy|hide/.test(config)) {
            return;
          }

          if (!data) {
            data = new Popover(this, _config);
            $$$1(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config]();
          }
        });
      };

      _createClass(Popover, null, [{
        key: "VERSION",
        // Getters
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }, {
        key: "NAME",
        get: function get() {
          return NAME;
        }
      }, {
        key: "DATA_KEY",
        get: function get() {
          return DATA_KEY;
        }
      }, {
        key: "Event",
        get: function get() {
          return Event;
        }
      }, {
        key: "EVENT_KEY",
        get: function get() {
          return EVENT_KEY;
        }
      }, {
        key: "DefaultType",
        get: function get() {
          return DefaultType;
        }
      }]);

      return Popover;
    }(Tooltip);
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */


    $$$1.fn[NAME] = Popover._jQueryInterface;
    $$$1.fn[NAME].Constructor = Popover;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Popover._jQueryInterface;
    };

    return Popover;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): scrollspy.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var ScrollSpy = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'scrollspy';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.scrollspy';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var Default = {
      offset: 10,
      method: 'auto',
      target: ''
    };
    var DefaultType = {
      offset: 'number',
      method: 'string',
      target: '(string|element)'
    };
    var Event = {
      ACTIVATE: "activate" + EVENT_KEY,
      SCROLL: "scroll" + EVENT_KEY,
      LOAD_DATA_API: "load" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      DROPDOWN_ITEM: 'dropdown-item',
      DROPDOWN_MENU: 'dropdown-menu',
      ACTIVE: 'active'
    };
    var Selector = {
      DATA_SPY: '[data-spy="scroll"]',
      ACTIVE: '.active',
      NAV_LIST_GROUP: '.nav, .list-group',
      NAV_LINKS: '.nav-link',
      NAV_ITEMS: '.nav-item',
      LIST_ITEMS: '.list-group-item',
      DROPDOWN: '.dropdown',
      DROPDOWN_ITEMS: '.dropdown-item',
      DROPDOWN_TOGGLE: '.dropdown-toggle'
    };
    var OffsetMethod = {
      OFFSET: 'offset',
      POSITION: 'position'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var ScrollSpy =
    /*#__PURE__*/
    function () {
      function ScrollSpy(element, config) {
        var _this = this;

        this._element = element;
        this._scrollElement = element.tagName === 'BODY' ? window : element;
        this._config = this._getConfig(config);
        this._selector = this._config.target + " " + Selector.NAV_LINKS + "," + (this._config.target + " " + Selector.LIST_ITEMS + ",") + (this._config.target + " " + Selector.DROPDOWN_ITEMS);
        this._offsets = [];
        this._targets = [];
        this._activeTarget = null;
        this._scrollHeight = 0;
        $$$1(this._scrollElement).on(Event.SCROLL, function (event) {
          return _this._process(event);
        });
        this.refresh();

        this._process();
      } // Getters


      var _proto = ScrollSpy.prototype;

      // Public
      _proto.refresh = function refresh() {
        var _this2 = this;

        var autoMethod = this._scrollElement === this._scrollElement.window ? OffsetMethod.OFFSET : OffsetMethod.POSITION;
        var offsetMethod = this._config.method === 'auto' ? autoMethod : this._config.method;
        var offsetBase = offsetMethod === OffsetMethod.POSITION ? this._getScrollTop() : 0;
        this._offsets = [];
        this._targets = [];
        this._scrollHeight = this._getScrollHeight();
        var targets = [].slice.call(document.querySelectorAll(this._selector));
        targets.map(function (element) {
          var target;
          var targetSelector = Util.getSelectorFromElement(element);

          if (targetSelector) {
            target = document.querySelector(targetSelector);
          }

          if (target) {
            var targetBCR = target.getBoundingClientRect();

            if (targetBCR.width || targetBCR.height) {
              // TODO (fat): remove sketch reliance on jQuery position/offset
              return [$$$1(target)[offsetMethod]().top + offsetBase, targetSelector];
            }
          }

          return null;
        }).filter(function (item) {
          return item;
        }).sort(function (a, b) {
          return a[0] - b[0];
        }).forEach(function (item) {
          _this2._offsets.push(item[0]);

          _this2._targets.push(item[1]);
        });
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        $$$1(this._scrollElement).off(EVENT_KEY);
        this._element = null;
        this._scrollElement = null;
        this._config = null;
        this._selector = null;
        this._offsets = null;
        this._targets = null;
        this._activeTarget = null;
        this._scrollHeight = null;
      }; // Private


      _proto._getConfig = function _getConfig(config) {
        config = _objectSpread({}, Default, typeof config === 'object' && config ? config : {});

        if (typeof config.target !== 'string') {
          var id = $$$1(config.target).attr('id');

          if (!id) {
            id = Util.getUID(NAME);
            $$$1(config.target).attr('id', id);
          }

          config.target = "#" + id;
        }

        Util.typeCheckConfig(NAME, config, DefaultType);
        return config;
      };

      _proto._getScrollTop = function _getScrollTop() {
        return this._scrollElement === window ? this._scrollElement.pageYOffset : this._scrollElement.scrollTop;
      };

      _proto._getScrollHeight = function _getScrollHeight() {
        return this._scrollElement.scrollHeight || Math.max(document.body.scrollHeight, document.documentElement.scrollHeight);
      };

      _proto._getOffsetHeight = function _getOffsetHeight() {
        return this._scrollElement === window ? window.innerHeight : this._scrollElement.getBoundingClientRect().height;
      };

      _proto._process = function _process() {
        var scrollTop = this._getScrollTop() + this._config.offset;

        var scrollHeight = this._getScrollHeight();

        var maxScroll = this._config.offset + scrollHeight - this._getOffsetHeight();

        if (this._scrollHeight !== scrollHeight) {
          this.refresh();
        }

        if (scrollTop >= maxScroll) {
          var target = this._targets[this._targets.length - 1];

          if (this._activeTarget !== target) {
            this._activate(target);
          }

          return;
        }

        if (this._activeTarget && scrollTop < this._offsets[0] && this._offsets[0] > 0) {
          this._activeTarget = null;

          this._clear();

          return;
        }

        var offsetLength = this._offsets.length;

        for (var i = offsetLength; i--;) {
          var isActiveTarget = this._activeTarget !== this._targets[i] && scrollTop >= this._offsets[i] && (typeof this._offsets[i + 1] === 'undefined' || scrollTop < this._offsets[i + 1]);

          if (isActiveTarget) {
            this._activate(this._targets[i]);
          }
        }
      };

      _proto._activate = function _activate(target) {
        this._activeTarget = target;

        this._clear();

        var queries = this._selector.split(','); // eslint-disable-next-line arrow-body-style


        queries = queries.map(function (selector) {
          return selector + "[data-target=\"" + target + "\"]," + (selector + "[href=\"" + target + "\"]");
        });
        var $link = $$$1([].slice.call(document.querySelectorAll(queries.join(','))));

        if ($link.hasClass(ClassName.DROPDOWN_ITEM)) {
          $link.closest(Selector.DROPDOWN).find(Selector.DROPDOWN_TOGGLE).addClass(ClassName.ACTIVE);
          $link.addClass(ClassName.ACTIVE);
        } else {
          // Set triggered link as active
          $link.addClass(ClassName.ACTIVE); // Set triggered links parents as active
          // With both <ul> and <nav> markup a parent is the previous sibling of any nav ancestor

          $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_LINKS + ", " + Selector.LIST_ITEMS).addClass(ClassName.ACTIVE); // Handle special case when .nav-link is inside .nav-item

          $link.parents(Selector.NAV_LIST_GROUP).prev(Selector.NAV_ITEMS).children(Selector.NAV_LINKS).addClass(ClassName.ACTIVE);
        }

        $$$1(this._scrollElement).trigger(Event.ACTIVATE, {
          relatedTarget: target
        });
      };

      _proto._clear = function _clear() {
        var nodes = [].slice.call(document.querySelectorAll(this._selector));
        $$$1(nodes).filter(Selector.ACTIVE).removeClass(ClassName.ACTIVE);
      }; // Static


      ScrollSpy._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var data = $$$1(this).data(DATA_KEY);

          var _config = typeof config === 'object' && config;

          if (!data) {
            data = new ScrollSpy(this, _config);
            $$$1(this).data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config]();
          }
        });
      };

      _createClass(ScrollSpy, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }, {
        key: "Default",
        get: function get() {
          return Default;
        }
      }]);

      return ScrollSpy;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(window).on(Event.LOAD_DATA_API, function () {
      var scrollSpys = [].slice.call(document.querySelectorAll(Selector.DATA_SPY));
      var scrollSpysLength = scrollSpys.length;

      for (var i = scrollSpysLength; i--;) {
        var $spy = $$$1(scrollSpys[i]);

        ScrollSpy._jQueryInterface.call($spy, $spy.data());
      }
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = ScrollSpy._jQueryInterface;
    $$$1.fn[NAME].Constructor = ScrollSpy;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return ScrollSpy._jQueryInterface;
    };

    return ScrollSpy;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): tab.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  var Tab = function ($$$1) {
    /**
     * ------------------------------------------------------------------------
     * Constants
     * ------------------------------------------------------------------------
     */
    var NAME = 'tab';
    var VERSION = '4.1.2';
    var DATA_KEY = 'bs.tab';
    var EVENT_KEY = "." + DATA_KEY;
    var DATA_API_KEY = '.data-api';
    var JQUERY_NO_CONFLICT = $$$1.fn[NAME];
    var Event = {
      HIDE: "hide" + EVENT_KEY,
      HIDDEN: "hidden" + EVENT_KEY,
      SHOW: "show" + EVENT_KEY,
      SHOWN: "shown" + EVENT_KEY,
      CLICK_DATA_API: "click" + EVENT_KEY + DATA_API_KEY
    };
    var ClassName = {
      DROPDOWN_MENU: 'dropdown-menu',
      ACTIVE: 'active',
      DISABLED: 'disabled',
      FADE: 'fade',
      SHOW: 'show'
    };
    var Selector = {
      DROPDOWN: '.dropdown',
      NAV_LIST_GROUP: '.nav, .list-group',
      ACTIVE: '.active',
      ACTIVE_UL: '> li > .active',
      DATA_TOGGLE: '[data-toggle="tab"], [data-toggle="pill"], [data-toggle="list"]',
      DROPDOWN_TOGGLE: '.dropdown-toggle',
      DROPDOWN_ACTIVE_CHILD: '> .dropdown-menu .active'
      /**
       * ------------------------------------------------------------------------
       * Class Definition
       * ------------------------------------------------------------------------
       */

    };

    var Tab =
    /*#__PURE__*/
    function () {
      function Tab(element) {
        this._element = element;
      } // Getters


      var _proto = Tab.prototype;

      // Public
      _proto.show = function show() {
        var _this = this;

        if (this._element.parentNode && this._element.parentNode.nodeType === Node.ELEMENT_NODE && $$$1(this._element).hasClass(ClassName.ACTIVE) || $$$1(this._element).hasClass(ClassName.DISABLED)) {
          return;
        }

        var target;
        var previous;
        var listElement = $$$1(this._element).closest(Selector.NAV_LIST_GROUP)[0];
        var selector = Util.getSelectorFromElement(this._element);

        if (listElement) {
          var itemSelector = listElement.nodeName === 'UL' ? Selector.ACTIVE_UL : Selector.ACTIVE;
          previous = $$$1.makeArray($$$1(listElement).find(itemSelector));
          previous = previous[previous.length - 1];
        }

        var hideEvent = $$$1.Event(Event.HIDE, {
          relatedTarget: this._element
        });
        var showEvent = $$$1.Event(Event.SHOW, {
          relatedTarget: previous
        });

        if (previous) {
          $$$1(previous).trigger(hideEvent);
        }

        $$$1(this._element).trigger(showEvent);

        if (showEvent.isDefaultPrevented() || hideEvent.isDefaultPrevented()) {
          return;
        }

        if (selector) {
          target = document.querySelector(selector);
        }

        this._activate(this._element, listElement);

        var complete = function complete() {
          var hiddenEvent = $$$1.Event(Event.HIDDEN, {
            relatedTarget: _this._element
          });
          var shownEvent = $$$1.Event(Event.SHOWN, {
            relatedTarget: previous
          });
          $$$1(previous).trigger(hiddenEvent);
          $$$1(_this._element).trigger(shownEvent);
        };

        if (target) {
          this._activate(target, target.parentNode, complete);
        } else {
          complete();
        }
      };

      _proto.dispose = function dispose() {
        $$$1.removeData(this._element, DATA_KEY);
        this._element = null;
      }; // Private


      _proto._activate = function _activate(element, container, callback) {
        var _this2 = this;

        var activeElements;

        if (container.nodeName === 'UL') {
          activeElements = $$$1(container).find(Selector.ACTIVE_UL);
        } else {
          activeElements = $$$1(container).children(Selector.ACTIVE);
        }

        var active = activeElements[0];
        var isTransitioning = callback && active && $$$1(active).hasClass(ClassName.FADE);

        var complete = function complete() {
          return _this2._transitionComplete(element, active, callback);
        };

        if (active && isTransitioning) {
          var transitionDuration = Util.getTransitionDurationFromElement(active);
          $$$1(active).one(Util.TRANSITION_END, complete).emulateTransitionEnd(transitionDuration);
        } else {
          complete();
        }
      };

      _proto._transitionComplete = function _transitionComplete(element, active, callback) {
        if (active) {
          $$$1(active).removeClass(ClassName.SHOW + " " + ClassName.ACTIVE);
          var dropdownChild = $$$1(active.parentNode).find(Selector.DROPDOWN_ACTIVE_CHILD)[0];

          if (dropdownChild) {
            $$$1(dropdownChild).removeClass(ClassName.ACTIVE);
          }

          if (active.getAttribute('role') === 'tab') {
            active.setAttribute('aria-selected', false);
          }
        }

        $$$1(element).addClass(ClassName.ACTIVE);

        if (element.getAttribute('role') === 'tab') {
          element.setAttribute('aria-selected', true);
        }

        Util.reflow(element);
        $$$1(element).addClass(ClassName.SHOW);

        if (element.parentNode && $$$1(element.parentNode).hasClass(ClassName.DROPDOWN_MENU)) {
          var dropdownElement = $$$1(element).closest(Selector.DROPDOWN)[0];

          if (dropdownElement) {
            var dropdownToggleList = [].slice.call(dropdownElement.querySelectorAll(Selector.DROPDOWN_TOGGLE));
            $$$1(dropdownToggleList).addClass(ClassName.ACTIVE);
          }

          element.setAttribute('aria-expanded', true);
        }

        if (callback) {
          callback();
        }
      }; // Static


      Tab._jQueryInterface = function _jQueryInterface(config) {
        return this.each(function () {
          var $this = $$$1(this);
          var data = $this.data(DATA_KEY);

          if (!data) {
            data = new Tab(this);
            $this.data(DATA_KEY, data);
          }

          if (typeof config === 'string') {
            if (typeof data[config] === 'undefined') {
              throw new TypeError("No method named \"" + config + "\"");
            }

            data[config]();
          }
        });
      };

      _createClass(Tab, null, [{
        key: "VERSION",
        get: function get() {
          return VERSION;
        }
      }]);

      return Tab;
    }();
    /**
     * ------------------------------------------------------------------------
     * Data Api implementation
     * ------------------------------------------------------------------------
     */


    $$$1(document).on(Event.CLICK_DATA_API, Selector.DATA_TOGGLE, function (event) {
      event.preventDefault();

      Tab._jQueryInterface.call($$$1(this), 'show');
    });
    /**
     * ------------------------------------------------------------------------
     * jQuery
     * ------------------------------------------------------------------------
     */

    $$$1.fn[NAME] = Tab._jQueryInterface;
    $$$1.fn[NAME].Constructor = Tab;

    $$$1.fn[NAME].noConflict = function () {
      $$$1.fn[NAME] = JQUERY_NO_CONFLICT;
      return Tab._jQueryInterface;
    };

    return Tab;
  }($);

  /**
   * --------------------------------------------------------------------------
   * Bootstrap (v4.1.2): index.js
   * Licensed under MIT (https://github.com/twbs/bootstrap/blob/master/LICENSE)
   * --------------------------------------------------------------------------
   */

  (function ($$$1) {
    if (typeof $$$1 === 'undefined') {
      throw new TypeError('Bootstrap\'s JavaScript requires jQuery. jQuery must be included before Bootstrap\'s JavaScript.');
    }

    var version = $$$1.fn.jquery.split(' ')[0].split('.');
    var minMajor = 1;
    var ltMajor = 2;
    var minMinor = 9;
    var minPatch = 1;
    var maxMajor = 4;

    if (version[0] < ltMajor && version[1] < minMinor || version[0] === minMajor && version[1] === minMinor && version[2] < minPatch || version[0] >= maxMajor) {
      throw new Error('Bootstrap\'s JavaScript requires at least jQuery v1.9.1 but less than v4.0.0');
    }
  })($);

  exports.Util = Util;
  exports.Alert = Alert;
  exports.Button = Button;
  exports.Carousel = Carousel;
  exports.Collapse = Collapse;
  exports.Dropdown = Dropdown;
  exports.Modal = Modal;
  exports.Popover = Popover;
  exports.Scrollspy = ScrollSpy;
  exports.Tab = Tab;
  exports.Tooltip = Tooltip;

  Object.defineProperty(exports, '__esModule', { value: true });

})));
//# sourceMappingURL=bootstrap.js.map

/**
 * sifter.js
 * Copyright (c) 2013 Brian Reavis & contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 * file except in compliance with the License. You may obtain a copy of the License at:
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 *
 * @author Brian Reavis <brian@thirdroute.com>
 */

(function(root, factory) {
	if (typeof define === 'function' && define.amd) {
		define('sifter', factory);
	} else if (typeof exports === 'object') {
		module.exports = factory();
	} else {
		root.Sifter = factory();
	}
}(this, function() {

	/**
	 * Textually searches arrays and hashes of objects
	 * by property (or multiple properties). Designed
	 * specifically for autocomplete.
	 *
	 * @constructor
	 * @param {array|object} items
	 * @param {object} items
	 */
	var Sifter = function(items, settings) {
		this.items = items;
		this.settings = settings || {diacritics: true};
	};

	/**
	 * Splits a search string into an array of individual
	 * regexps to be used to match results.
	 *
	 * @param {string} query
	 * @returns {array}
	 */
	Sifter.prototype.tokenize = function(query) {
		query = trim(String(query || '').toLowerCase());
		if (!query || !query.length) return [];

		var i, n, regex, letter;
		var tokens = [];
		var words = query.split(/ +/);

		for (i = 0, n = words.length; i < n; i++) {
			regex = escape_regex(words[i]);
			if (this.settings.diacritics) {
				for (letter in DIACRITICS) {
					if (DIACRITICS.hasOwnProperty(letter)) {
						regex = regex.replace(new RegExp(letter, 'g'), DIACRITICS[letter]);
					}
				}
			}
			tokens.push({
				string : words[i],
				regex  : new RegExp(regex, 'i')
			});
		}

		return tokens;
	};

	/**
	 * Iterates over arrays and hashes.
	 *
	 * ```
	 * this.iterator(this.items, function(item, id) {
	 *    // invoked for each item
	 * });
	 * ```
	 *
	 * @param {array|object} object
	 */
	Sifter.prototype.iterator = function(object, callback) {
		var iterator;
		if (is_array(object)) {
			iterator = Array.prototype.forEach || function(callback) {
				for (var i = 0, n = this.length; i < n; i++) {
					callback(this[i], i, this);
				}
			};
		} else {
			iterator = function(callback) {
				for (var key in this) {
					if (this.hasOwnProperty(key)) {
						callback(this[key], key, this);
					}
				}
			};
		}

		iterator.apply(object, [callback]);
	};

	/**
	 * Returns a function to be used to score individual results.
	 *
	 * Good matches will have a higher score than poor matches.
	 * If an item is not a match, 0 will be returned by the function.
	 *
	 * @param {object|string} search
	 * @param {object} options (optional)
	 * @returns {function}
	 */
	Sifter.prototype.getScoreFunction = function(search, options) {
		var self, fields, tokens, token_count, nesting;

		self        = this;
		search      = self.prepareSearch(search, options);
		tokens      = search.tokens;
		fields      = search.options.fields;
		token_count = tokens.length;
		nesting     = search.options.nesting;

		/**
		 * Calculates how close of a match the
		 * given value is against a search token.
		 *
		 * @param {mixed} value
		 * @param {object} token
		 * @return {number}
		 */
		var scoreValue = function(value, token) {
			var score, pos;

			if (!value) return 0;
			value = String(value || '');
			pos = value.search(token.regex);
			if (pos === -1) return 0;
			score = token.string.length / value.length;
			if (pos === 0) score += 0.5;
			return score;
		};

		/**
		 * Calculates the score of an object
		 * against the search query.
		 *
		 * @param {object} token
		 * @param {object} data
		 * @return {number}
		 */
		var scoreObject = (function() {
			var field_count = fields.length;
			if (!field_count) {
				return function() { return 0; };
			}
			if (field_count === 1) {
				return function(token, data) {
					return scoreValue(getattr(data, fields[0], nesting), token);
				};
			}
			return function(token, data) {
				for (var i = 0, sum = 0; i < field_count; i++) {
					sum += scoreValue(getattr(data, fields[i], nesting), token);
				}
				return sum / field_count;
			};
		})();

		if (!token_count) {
			return function() { return 0; };
		}
		if (token_count === 1) {
			return function(data) {
				return scoreObject(tokens[0], data);
			};
		}

		if (search.options.conjunction === 'and') {
			return function(data) {
				var score;
				for (var i = 0, sum = 0; i < token_count; i++) {
					score = scoreObject(tokens[i], data);
					if (score <= 0) return 0;
					sum += score;
				}
				return sum / token_count;
			};
		} else {
			return function(data) {
				for (var i = 0, sum = 0; i < token_count; i++) {
					sum += scoreObject(tokens[i], data);
				}
				return sum / token_count;
			};
		}
	};

	/**
	 * Returns a function that can be used to compare two
	 * results, for sorting purposes. If no sorting should
	 * be performed, `null` will be returned.
	 *
	 * @param {string|object} search
	 * @param {object} options
	 * @return function(a,b)
	 */
	Sifter.prototype.getSortFunction = function(search, options) {
		var i, n, self, field, fields, fields_count, multiplier, multipliers, get_field, implicit_score, sort;

		self   = this;
		search = self.prepareSearch(search, options);
		sort   = (!search.query && options.sort_empty) || options.sort;

		/**
		 * Fetches the specified sort field value
		 * from a search result item.
		 *
		 * @param  {string} name
		 * @param  {object} result
		 * @return {mixed}
		 */
		get_field = function(name, result) {
			if (name === '$score') return result.score;
			return getattr(self.items[result.id], name, options.nesting);
		};

		// parse options
		fields = [];
		if (sort) {
			for (i = 0, n = sort.length; i < n; i++) {
				if (search.query || sort[i].field !== '$score') {
					fields.push(sort[i]);
				}
			}
		}

		// the "$score" field is implied to be the primary
		// sort field, unless it's manually specified
		if (search.query) {
			implicit_score = true;
			for (i = 0, n = fields.length; i < n; i++) {
				if (fields[i].field === '$score') {
					implicit_score = false;
					break;
				}
			}
			if (implicit_score) {
				fields.unshift({field: '$score', direction: 'desc'});
			}
		} else {
			for (i = 0, n = fields.length; i < n; i++) {
				if (fields[i].field === '$score') {
					fields.splice(i, 1);
					break;
				}
			}
		}

		multipliers = [];
		for (i = 0, n = fields.length; i < n; i++) {
			multipliers.push(fields[i].direction === 'desc' ? -1 : 1);
		}

		// build function
		fields_count = fields.length;
		if (!fields_count) {
			return null;
		} else if (fields_count === 1) {
			field = fields[0].field;
			multiplier = multipliers[0];
			return function(a, b) {
				return multiplier * cmp(
					get_field(field, a),
					get_field(field, b)
				);
			};
		} else {
			return function(a, b) {
				var i, result, a_value, b_value, field;
				for (i = 0; i < fields_count; i++) {
					field = fields[i].field;
					result = multipliers[i] * cmp(
						get_field(field, a),
						get_field(field, b)
					);
					if (result) return result;
				}
				return 0;
			};
		}
	};

	/**
	 * Parses a search query and returns an object
	 * with tokens and fields ready to be populated
	 * with results.
	 *
	 * @param {string} query
	 * @param {object} options
	 * @returns {object}
	 */
	Sifter.prototype.prepareSearch = function(query, options) {
		if (typeof query === 'object') return query;

		options = extend({}, options);

		var option_fields     = options.fields;
		var option_sort       = options.sort;
		var option_sort_empty = options.sort_empty;

		if (option_fields && !is_array(option_fields)) options.fields = [option_fields];
		if (option_sort && !is_array(option_sort)) options.sort = [option_sort];
		if (option_sort_empty && !is_array(option_sort_empty)) options.sort_empty = [option_sort_empty];

		return {
			options : options,
			query   : String(query || '').toLowerCase(),
			tokens  : this.tokenize(query),
			total   : 0,
			items   : []
		};
	};

	/**
	 * Searches through all items and returns a sorted array of matches.
	 *
	 * The `options` parameter can contain:
	 *
	 *   - fields {string|array}
	 *   - sort {array}
	 *   - score {function}
	 *   - filter {bool}
	 *   - limit {integer}
	 *
	 * Returns an object containing:
	 *
	 *   - options {object}
	 *   - query {string}
	 *   - tokens {array}
	 *   - total {int}
	 *   - items {array}
	 *
	 * @param {string} query
	 * @param {object} options
	 * @returns {object}
	 */
	Sifter.prototype.search = function(query, options) {
		var self = this, value, score, search, calculateScore;
		var fn_sort;
		var fn_score;

		search  = this.prepareSearch(query, options);
		options = search.options;
		query   = search.query;

		// generate result scoring function
		fn_score = options.score || self.getScoreFunction(search);

		// perform search and sort
		if (query.length) {
			self.iterator(self.items, function(item, id) {
				score = fn_score(item);
				if (options.filter === false || score > 0) {
					search.items.push({'score': score, 'id': id});
				}
			});
		} else {
			self.iterator(self.items, function(item, id) {
				search.items.push({'score': 1, 'id': id});
			});
		}

		fn_sort = self.getSortFunction(search, options);
		if (fn_sort) search.items.sort(fn_sort);

		// apply limits
		search.total = search.items.length;
		if (typeof options.limit === 'number') {
			search.items = search.items.slice(0, options.limit);
		}

		return search;
	};

	// utilities
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	var cmp = function(a, b) {
		if (typeof a === 'number' && typeof b === 'number') {
			return a > b ? 1 : (a < b ? -1 : 0);
		}
		a = asciifold(String(a || ''));
		b = asciifold(String(b || ''));
		if (a > b) return 1;
		if (b > a) return -1;
		return 0;
	};

	var extend = function(a, b) {
		var i, n, k, object;
		for (i = 1, n = arguments.length; i < n; i++) {
			object = arguments[i];
			if (!object) continue;
			for (k in object) {
				if (object.hasOwnProperty(k)) {
					a[k] = object[k];
				}
			}
		}
		return a;
	};

	/**
	 * A property getter resolving dot-notation
	 * @param  {Object}  obj     The root object to fetch property on
	 * @param  {String}  name    The optionally dotted property name to fetch
	 * @param  {Boolean} nesting Handle nesting or not
	 * @return {Object}          The resolved property value
	 */
	var getattr = function(obj, name, nesting) {
	    if (!obj || !name) return;
	    if (!nesting) return obj[name];
	    var names = name.split(".");
	    while(names.length && (obj = obj[names.shift()]));
	    return obj;
	};

	var trim = function(str) {
		return (str + '').replace(/^\s+|\s+$|/g, '');
	};

	var escape_regex = function(str) {
		return (str + '').replace(/([.?*+^$[\]\\(){}|-])/g, '\\$1');
	};

	var is_array = Array.isArray || (typeof $ !== 'undefined' && $.isArray) || function(object) {
		return Object.prototype.toString.call(object) === '[object Array]';
	};

	var DIACRITICS = {
		'a': '[aḀḁĂăÂâǍǎȺⱥȦȧẠạÄäÀàÁáĀāÃãÅåąĄÃąĄ]',
		'b': '[b␢βΒB฿𐌁ᛒ]',
		'c': '[cĆćĈĉČčĊċC̄c̄ÇçḈḉȻȼƇƈɕᴄＣｃ]',
		'd': '[dĎďḊḋḐḑḌḍḒḓḎḏĐđD̦d̦ƉɖƊɗƋƌᵭᶁᶑȡᴅＤｄð]',
		'e': '[eÉéÈèÊêḘḙĚěĔĕẼẽḚḛẺẻĖėËëĒēȨȩĘęᶒɆɇȄȅẾếỀềỄễỂểḜḝḖḗḔḕȆȇẸẹỆệⱸᴇＥｅɘǝƏƐε]',
		'f': '[fƑƒḞḟ]',
		'g': '[gɢ₲ǤǥĜĝĞğĢģƓɠĠġ]',
		'h': '[hĤĥĦħḨḩẖẖḤḥḢḣɦʰǶƕ]',
		'i': '[iÍíÌìĬĭÎîǏǐÏïḮḯĨĩĮįĪīỈỉȈȉȊȋỊịḬḭƗɨɨ̆ᵻᶖİiIıɪＩｉ]',
		'j': '[jȷĴĵɈɉʝɟʲ]',
		'k': '[kƘƙꝀꝁḰḱǨǩḲḳḴḵκϰ₭]',
		'l': '[lŁłĽľĻļĹĺḶḷḸḹḼḽḺḻĿŀȽƚⱠⱡⱢɫɬᶅɭȴʟＬｌ]',
		'n': '[nŃńǸǹŇňÑñṄṅŅņṆṇṊṋṈṉN̈n̈ƝɲȠƞᵰᶇɳȵɴＮｎŊŋ]',
		'o': '[oØøÖöÓóÒòÔôǑǒŐőŎŏȮȯỌọƟɵƠơỎỏŌōÕõǪǫȌȍՕօ]',
		'p': '[pṔṕṖṗⱣᵽƤƥᵱ]',
		'q': '[qꝖꝗʠɊɋꝘꝙq̃]',
		'r': '[rŔŕɌɍŘřŖŗṘṙȐȑȒȓṚṛⱤɽ]',
		's': '[sŚśṠṡṢṣꞨꞩŜŝŠšŞşȘșS̈s̈]',
		't': '[tŤťṪṫŢţṬṭƮʈȚțṰṱṮṯƬƭ]',
		'u': '[uŬŭɄʉỤụÜüÚúÙùÛûǓǔŰűŬŭƯưỦủŪūŨũŲųȔȕ∪]',
		'v': '[vṼṽṾṿƲʋꝞꝟⱱʋ]',
		'w': '[wẂẃẀẁŴŵẄẅẆẇẈẉ]',
		'x': '[xẌẍẊẋχ]',
		'y': '[yÝýỲỳŶŷŸÿỸỹẎẏỴỵɎɏƳƴ]',
		'z': '[zŹźẐẑŽžŻżẒẓẔẕƵƶ]'
	};

	var asciifold = (function() {
		var i, n, k, chunk;
		var foreignletters = '';
		var lookup = {};
		for (k in DIACRITICS) {
			if (DIACRITICS.hasOwnProperty(k)) {
				chunk = DIACRITICS[k].substring(2, DIACRITICS[k].length - 1);
				foreignletters += chunk;
				for (i = 0, n = chunk.length; i < n; i++) {
					lookup[chunk.charAt(i)] = k;
				}
			}
		}
		var regexp = new RegExp('[' +  foreignletters + ']', 'g');
		return function(str) {
			return str.replace(regexp, function(foreignletter) {
				return lookup[foreignletter];
			}).toLowerCase();
		};
	})();


	// export
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

	return Sifter;
}));



/**
 * microplugin.js
 * Copyright (c) 2013 Brian Reavis & contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 * file except in compliance with the License. You may obtain a copy of the License at:
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 *
 * @author Brian Reavis <brian@thirdroute.com>
 */

(function(root, factory) {
	if (typeof define === 'function' && define.amd) {
		define('microplugin', factory);
	} else if (typeof exports === 'object') {
		module.exports = factory();
	} else {
		root.MicroPlugin = factory();
	}
}(this, function() {
	var MicroPlugin = {};

	MicroPlugin.mixin = function(Interface) {
		Interface.plugins = {};

		/**
		 * Initializes the listed plugins (with options).
		 * Acceptable formats:
		 *
		 * List (without options):
		 *   ['a', 'b', 'c']
		 *
		 * List (with options):
		 *   [{'name': 'a', options: {}}, {'name': 'b', options: {}}]
		 *
		 * Hash (with options):
		 *   {'a': { ... }, 'b': { ... }, 'c': { ... }}
		 *
		 * @param {mixed} plugins
		 */
		Interface.prototype.initializePlugins = function(plugins) {
			var i, n, key;
			var self  = this;
			var queue = [];

			self.plugins = {
				names     : [],
				settings  : {},
				requested : {},
				loaded    : {}
			};

			if (utils.isArray(plugins)) {
				for (i = 0, n = plugins.length; i < n; i++) {
					if (typeof plugins[i] === 'string') {
						queue.push(plugins[i]);
					} else {
						self.plugins.settings[plugins[i].name] = plugins[i].options;
						queue.push(plugins[i].name);
					}
				}
			} else if (plugins) {
				for (key in plugins) {
					if (plugins.hasOwnProperty(key)) {
						self.plugins.settings[key] = plugins[key];
						queue.push(key);
					}
				}
			}

			while (queue.length) {
				self.require(queue.shift());
			}
		};

		Interface.prototype.loadPlugin = function(name) {
			var self    = this;
			var plugins = self.plugins;
			var plugin  = Interface.plugins[name];

			if (!Interface.plugins.hasOwnProperty(name)) {
				throw new Error('Unable to find "' +  name + '" plugin');
			}

			plugins.requested[name] = true;
			plugins.loaded[name] = plugin.fn.apply(self, [self.plugins.settings[name] || {}]);
			plugins.names.push(name);
		};

		/**
		 * Initializes a plugin.
		 *
		 * @param {string} name
		 */
		Interface.prototype.require = function(name) {
			var self = this;
			var plugins = self.plugins;

			if (!self.plugins.loaded.hasOwnProperty(name)) {
				if (plugins.requested[name]) {
					throw new Error('Plugin has circular dependency ("' + name + '")');
				}
				self.loadPlugin(name);
			}

			return plugins.loaded[name];
		};

		/**
		 * Registers a plugin.
		 *
		 * @param {string} name
		 * @param {function} fn
		 */
		Interface.define = function(name, fn) {
			Interface.plugins[name] = {
				'name' : name,
				'fn'   : fn
			};
		};
	};

	var utils = {
		isArray: Array.isArray || function(vArg) {
			return Object.prototype.toString.call(vArg) === '[object Array]';
		}
	};

	return MicroPlugin;
}));

/**
 * selectize.js (v0.12.4)
 * Copyright (c) 2013–2015 Brian Reavis & contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this
 * file except in compliance with the License. You may obtain a copy of the License at:
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF
 * ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 *
 * @author Brian Reavis <brian@thirdroute.com>
 */

/*jshint curly:false */
/*jshint browser:true */

(function(root, factory) {
	if (typeof define === 'function' && define.amd) {
		define('selectize', ['jquery','sifter','microplugin'], factory);
	} else if (typeof exports === 'object') {
		module.exports = factory(require('jquery'), require('sifter'), require('microplugin'));
	} else {
		root.Selectize = factory(root.jQuery, root.Sifter, root.MicroPlugin);
	}
}(this, function($, Sifter, MicroPlugin) {
	'use strict';

	var highlight = function($element, pattern) {
		if (typeof pattern === 'string' && !pattern.length) return;
		var regex = (typeof pattern === 'string') ? new RegExp(pattern, 'i') : pattern;
	
		var highlight = function(node) {
			var skip = 0;
			if (node.nodeType === 3) {
				var pos = node.data.search(regex);
				if (pos >= 0 && node.data.length > 0) {
					var match = node.data.match(regex);
					var spannode = document.createElement('span');
					spannode.className = 'highlight';
					var middlebit = node.splitText(pos);
					var endbit = middlebit.splitText(match[0].length);
					var middleclone = middlebit.cloneNode(true);
					spannode.appendChild(middleclone);
					middlebit.parentNode.replaceChild(spannode, middlebit);
					skip = 1;
				}
			} else if (node.nodeType === 1 && node.childNodes && !/(script|style)/i.test(node.tagName)) {
				for (var i = 0; i < node.childNodes.length; ++i) {
					i += highlight(node.childNodes[i]);
				}
			}
			return skip;
		};
	
		return $element.each(function() {
			highlight(this);
		});
	};
	
	/**
	 * removeHighlight fn copied from highlight v5 and
	 * edited to remove with() and pass js strict mode
	 */
	$.fn.removeHighlight = function() {
		return this.find("span.highlight").each(function() {
			this.parentNode.firstChild.nodeName;
			var parent = this.parentNode;
			parent.replaceChild(this.firstChild, this);
			parent.normalize();
		}).end();
	};
	
	
	var MicroEvent = function() {};
	MicroEvent.prototype = {
		on: function(event, fct){
			this._events = this._events || {};
			this._events[event] = this._events[event] || [];
			this._events[event].push(fct);
		},
		off: function(event, fct){
			var n = arguments.length;
			if (n === 0) return delete this._events;
			if (n === 1) return delete this._events[event];
	
			this._events = this._events || {};
			if (event in this._events === false) return;
			this._events[event].splice(this._events[event].indexOf(fct), 1);
		},
		trigger: function(event /* , args... */){
			this._events = this._events || {};
			if (event in this._events === false) return;
			for (var i = 0; i < this._events[event].length; i++){
				this._events[event][i].apply(this, Array.prototype.slice.call(arguments, 1));
			}
		}
	};
	
	/**
	 * Mixin will delegate all MicroEvent.js function in the destination object.
	 *
	 * - MicroEvent.mixin(Foobar) will make Foobar able to use MicroEvent
	 *
	 * @param {object} the object which will support MicroEvent
	 */
	MicroEvent.mixin = function(destObject){
		var props = ['on', 'off', 'trigger'];
		for (var i = 0; i < props.length; i++){
			destObject.prototype[props[i]] = MicroEvent.prototype[props[i]];
		}
	};
	
	var IS_MAC        = /Mac/.test(navigator.userAgent);
	
	var KEY_A         = 65;
	var KEY_COMMA     = 188;
	var KEY_RETURN    = 13;
	var KEY_ESC       = 27;
	var KEY_LEFT      = 37;
	var KEY_UP        = 38;
	var KEY_P         = 80;
	var KEY_RIGHT     = 39;
	var KEY_DOWN      = 40;
	var KEY_N         = 78;
	var KEY_BACKSPACE = 8;
	var KEY_DELETE    = 46;
	var KEY_SHIFT     = 16;
	var KEY_CMD       = IS_MAC ? 91 : 17;
	var KEY_CTRL      = IS_MAC ? 18 : 17;
	var KEY_TAB       = 9;
	
	var TAG_SELECT    = 1;
	var TAG_INPUT     = 2;
	
	// for now, android support in general is too spotty to support validity
	var SUPPORTS_VALIDITY_API = !/android/i.test(window.navigator.userAgent) && !!document.createElement('input').validity;
	
	
	var isset = function(object) {
		return typeof object !== 'undefined';
	};
	
	/**
	 * Converts a scalar to its best string representation
	 * for hash keys and HTML attribute values.
	 *
	 * Transformations:
	 *   'str'     -> 'str'
	 *   null      -> ''
	 *   undefined -> ''
	 *   true      -> '1'
	 *   false     -> '0'
	 *   0         -> '0'
	 *   1         -> '1'
	 *
	 * @param {string} value
	 * @returns {string|null}
	 */
	var hash_key = function(value) {
		if (typeof value === 'undefined' || value === null) return null;
		if (typeof value === 'boolean') return value ? '1' : '0';
		return value + '';
	};
	
	/**
	 * Escapes a string for use within HTML.
	 *
	 * @param {string} str
	 * @returns {string}
	 */
	var escape_html = function(str) {
		return (str + '')
			.replace(/&/g, '&amp;')
			.replace(/</g, '&lt;')
			.replace(/>/g, '&gt;')
			.replace(/"/g, '&quot;');
	};
	
	/**
	 * Escapes "$" characters in replacement strings.
	 *
	 * @param {string} str
	 * @returns {string}
	 */
	var escape_replace = function(str) {
		return (str + '').replace(/\$/g, '$$$$');
	};
	
	var hook = {};
	
	/**
	 * Wraps `method` on `self` so that `fn`
	 * is invoked before the original method.
	 *
	 * @param {object} self
	 * @param {string} method
	 * @param {function} fn
	 */
	hook.before = function(self, method, fn) {
		var original = self[method];
		self[method] = function() {
			fn.apply(self, arguments);
			return original.apply(self, arguments);
		};
	};
	
	/**
	 * Wraps `method` on `self` so that `fn`
	 * is invoked after the original method.
	 *
	 * @param {object} self
	 * @param {string} method
	 * @param {function} fn
	 */
	hook.after = function(self, method, fn) {
		var original = self[method];
		self[method] = function() {
			var result = original.apply(self, arguments);
			fn.apply(self, arguments);
			return result;
		};
	};
	
	/**
	 * Wraps `fn` so that it can only be invoked once.
	 *
	 * @param {function} fn
	 * @returns {function}
	 */
	var once = function(fn) {
		var called = false;
		return function() {
			if (called) return;
			called = true;
			fn.apply(this, arguments);
		};
	};
	
	/**
	 * Wraps `fn` so that it can only be called once
	 * every `delay` milliseconds (invoked on the falling edge).
	 *
	 * @param {function} fn
	 * @param {int} delay
	 * @returns {function}
	 */
	var debounce = function(fn, delay) {
		var timeout;
		return function() {
			var self = this;
			var args = arguments;
			window.clearTimeout(timeout);
			timeout = window.setTimeout(function() {
				fn.apply(self, args);
			}, delay);
		};
	};
	
	/**
	 * Debounce all fired events types listed in `types`
	 * while executing the provided `fn`.
	 *
	 * @param {object} self
	 * @param {array} types
	 * @param {function} fn
	 */
	var debounce_events = function(self, types, fn) {
		var type;
		var trigger = self.trigger;
		var event_args = {};
	
		// override trigger method
		self.trigger = function() {
			var type = arguments[0];
			if (types.indexOf(type) !== -1) {
				event_args[type] = arguments;
			} else {
				return trigger.apply(self, arguments);
			}
		};
	
		// invoke provided function
		fn.apply(self, []);
		self.trigger = trigger;
	
		// trigger queued events
		for (type in event_args) {
			if (event_args.hasOwnProperty(type)) {
				trigger.apply(self, event_args[type]);
			}
		}
	};
	
	/**
	 * A workaround for http://bugs.jquery.com/ticket/6696
	 *
	 * @param {object} $parent - Parent element to listen on.
	 * @param {string} event - Event name.
	 * @param {string} selector - Descendant selector to filter by.
	 * @param {function} fn - Event handler.
	 */
	var watchChildEvent = function($parent, event, selector, fn) {
		$parent.on(event, selector, function(e) {
			var child = e.target;
			while (child && child.parentNode !== $parent[0]) {
				child = child.parentNode;
			}
			e.currentTarget = child;
			return fn.apply(this, [e]);
		});
	};
	
	/**
	 * Determines the current selection within a text input control.
	 * Returns an object containing:
	 *   - start
	 *   - length
	 *
	 * @param {object} input
	 * @returns {object}
	 */
	var getSelection = function(input) {
		var result = {};
		if ('selectionStart' in input) {
			result.start = input.selectionStart;
			result.length = input.selectionEnd - result.start;
		} else if (document.selection) {
			input.focus();
			var sel = document.selection.createRange();
			var selLen = document.selection.createRange().text.length;
			sel.moveStart('character', -input.value.length);
			result.start = sel.text.length - selLen;
			result.length = selLen;
		}
		return result;
	};
	
	/**
	 * Copies CSS properties from one element to another.
	 *
	 * @param {object} $from
	 * @param {object} $to
	 * @param {array} properties
	 */
	var transferStyles = function($from, $to, properties) {
		var i, n, styles = {};
		if (properties) {
			for (i = 0, n = properties.length; i < n; i++) {
				styles[properties[i]] = $from.css(properties[i]);
			}
		} else {
			styles = $from.css();
		}
		$to.css(styles);
	};
	
	/**
	 * Measures the width of a string within a
	 * parent element (in pixels).
	 *
	 * @param {string} str
	 * @param {object} $parent
	 * @returns {int}
	 */
	var measureString = function(str, $parent) {
		if (!str) {
			return 0;
		}
	
		var $test = $('<test>').css({
			position: 'absolute',
			top: -99999,
			left: -99999,
			width: 'auto',
			padding: 0,
			whiteSpace: 'pre'
		}).text(str).appendTo('body');
	
		transferStyles($parent, $test, [
			'letterSpacing',
			'fontSize',
			'fontFamily',
			'fontWeight',
			'textTransform'
		]);
	
		var width = $test.width();
		$test.remove();
	
		return width;
	};
	
	/**
	 * Sets up an input to grow horizontally as the user
	 * types. If the value is changed manually, you can
	 * trigger the "update" handler to resize:
	 *
	 * $input.trigger('update');
	 *
	 * @param {object} $input
	 */
	var autoGrow = function($input) {
		var currentWidth = null;
	
		var update = function(e, options) {
			var value, keyCode, printable, placeholder, width;
			var shift, character, selection;
			e = e || window.event || {};
			options = options || {};
	
			if (e.metaKey || e.altKey) return;
			if (!options.force && $input.data('grow') === false) return;
	
			value = $input.val();
			if (e.type && e.type.toLowerCase() === 'keydown') {
				keyCode = e.keyCode;
				printable = (
					(keyCode >= 97 && keyCode <= 122) || // a-z
					(keyCode >= 65 && keyCode <= 90)  || // A-Z
					(keyCode >= 48 && keyCode <= 57)  || // 0-9
					keyCode === 32 // space
				);
	
				if (keyCode === KEY_DELETE || keyCode === KEY_BACKSPACE) {
					selection = getSelection($input[0]);
					if (selection.length) {
						value = value.substring(0, selection.start) + value.substring(selection.start + selection.length);
					} else if (keyCode === KEY_BACKSPACE && selection.start) {
						value = value.substring(0, selection.start - 1) + value.substring(selection.start + 1);
					} else if (keyCode === KEY_DELETE && typeof selection.start !== 'undefined') {
						value = value.substring(0, selection.start) + value.substring(selection.start + 1);
					}
				} else if (printable) {
					shift = e.shiftKey;
					character = String.fromCharCode(e.keyCode);
					if (shift) character = character.toUpperCase();
					else character = character.toLowerCase();
					value += character;
				}
			}
	
			placeholder = $input.attr('placeholder');
			if (!value && placeholder) {
				value = placeholder;
			}
	
			width = measureString(value, $input) + 4;
			if (width !== currentWidth) {
				currentWidth = width;
				$input.width(width);
				$input.triggerHandler('resize');
			}
		};
	
		$input.on('keydown keyup update blur', update);
		update();
	};
	
	var domToString = function(d) {
		var tmp = document.createElement('div');
	
		tmp.appendChild(d.cloneNode(true));
	
		return tmp.innerHTML;
	};
	
	var logError = function(message, options){
		if(!options) options = {};
		var component = "Selectize";
	
		console.error(component + ": " + message)
	
		if(options.explanation){
			// console.group is undefined in <IE11
			if(console.group) console.group();
			console.error(options.explanation);
			if(console.group) console.groupEnd();
		}
	}
	
	
	var Selectize = function($input, settings) {
		var key, i, n, dir, input, self = this;
		input = $input[0];
		input.selectize = self;
	
		// detect rtl environment
		var computedStyle = window.getComputedStyle && window.getComputedStyle(input, null);
		dir = computedStyle ? computedStyle.getPropertyValue('direction') : input.currentStyle && input.currentStyle.direction;
		dir = dir || $input.parents('[dir]:first').attr('dir') || '';
	
		// setup default state
		$.extend(self, {
			order            : 0,
			settings         : settings,
			$input           : $input,
			tabIndex         : $input.attr('tabindex') || '',
			tagType          : input.tagName.toLowerCase() === 'select' ? TAG_SELECT : TAG_INPUT,
			rtl              : /rtl/i.test(dir),
	
			eventNS          : '.selectize' + (++Selectize.count),
			highlightedValue : null,
			isOpen           : false,
			isDisabled       : false,
			isRequired       : $input.is('[required]'),
			isInvalid        : false,
			isLocked         : false,
			isFocused        : false,
			isInputHidden    : false,
			isSetup          : false,
			isShiftDown      : false,
			isCmdDown        : false,
			isCtrlDown       : false,
			ignoreFocus      : false,
			ignoreBlur       : false,
			ignoreHover      : false,
			hasOptions       : false,
			currentResults   : null,
			lastValue        : '',
			caretPos         : 0,
			loading          : 0,
			loadedSearches   : {},
	
			$activeOption    : null,
			$activeItems     : [],
	
			optgroups        : {},
			options          : {},
			userOptions      : {},
			items            : [],
			renderCache      : {},
			onSearchChange   : settings.loadThrottle === null ? self.onSearchChange : debounce(self.onSearchChange, settings.loadThrottle)
		});
	
		// search system
		self.sifter = new Sifter(this.options, {diacritics: settings.diacritics});
	
		// build options table
		if (self.settings.options) {
			for (i = 0, n = self.settings.options.length; i < n; i++) {
				self.registerOption(self.settings.options[i]);
			}
			delete self.settings.options;
		}
	
		// build optgroup table
		if (self.settings.optgroups) {
			for (i = 0, n = self.settings.optgroups.length; i < n; i++) {
				self.registerOptionGroup(self.settings.optgroups[i]);
			}
			delete self.settings.optgroups;
		}
	
		// option-dependent defaults
		self.settings.mode = self.settings.mode || (self.settings.maxItems === 1 ? 'single' : 'multi');
		if (typeof self.settings.hideSelected !== 'boolean') {
			self.settings.hideSelected = self.settings.mode === 'multi';
		}
	
		self.initializePlugins(self.settings.plugins);
		self.setupCallbacks();
		self.setupTemplates();
		self.setup();
	};
	
	// mixins
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	
	MicroEvent.mixin(Selectize);
	
	if(typeof MicroPlugin !== "undefined"){
		MicroPlugin.mixin(Selectize);
	}else{
		logError("Dependency MicroPlugin is missing",
			{explanation:
				"Make sure you either: (1) are using the \"standalone\" "+
				"version of Selectize, or (2) require MicroPlugin before you "+
				"load Selectize."}
		);
	}
	
	
	// methods
	// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
	
	$.extend(Selectize.prototype, {
	
		/**
		 * Creates all elements and sets up event bindings.
		 */
		setup: function() {
			var self      = this;
			var settings  = self.settings;
			var eventNS   = self.eventNS;
			var $window   = $(window);
			var $document = $(document);
			var $input    = self.$input;
	
			var $wrapper;
			var $control;
			var $control_input;
			var $dropdown;
			var $dropdown_content;
			var $dropdown_parent;
			var inputMode;
			var timeout_blur;
			var timeout_focus;
			var classes;
			var classes_plugins;
			var inputId;
	
			inputMode         = self.settings.mode;
			classes           = $input.attr('class') || '';
	
			$wrapper          = $('<div>').addClass(settings.wrapperClass).addClass(classes).addClass(inputMode);
			$control          = $('<div>').addClass(settings.inputClass).addClass('items').appendTo($wrapper);
			$control_input    = $('<input type="text" autocomplete="off" />').appendTo($control).attr('tabindex', $input.is(':disabled') ? '-1' : self.tabIndex);
			$dropdown_parent  = $(settings.dropdownParent || $wrapper);
			$dropdown         = $('<div>').addClass(settings.dropdownClass).addClass(inputMode).hide().appendTo($dropdown_parent);
			$dropdown_content = $('<div>').addClass(settings.dropdownContentClass).appendTo($dropdown);
	
			if(inputId = $input.attr('id')) {
				$control_input.attr('id', inputId + '-selectized');
				$("label[for='"+inputId+"']").attr('for', inputId + '-selectized');
			}
	
			if(self.settings.copyClassesToDropdown) {
				$dropdown.addClass(classes);
			}
	
			$wrapper.css({
				width: $input[0].style.width
			});
	
			if (self.plugins.names.length) {
				classes_plugins = 'plugin-' + self.plugins.names.join(' plugin-');
				$wrapper.addClass(classes_plugins);
				$dropdown.addClass(classes_plugins);
			}
	
			if ((settings.maxItems === null || settings.maxItems > 1) && self.tagType === TAG_SELECT) {
				$input.attr('multiple', 'multiple');
			}
	
			if (self.settings.placeholder) {
				$control_input.attr('placeholder', settings.placeholder);
			}
	
			// if splitOn was not passed in, construct it from the delimiter to allow pasting universally
			if (!self.settings.splitOn && self.settings.delimiter) {
				var delimiterEscaped = self.settings.delimiter.replace(/[-\/\\^$*+?.()|[\]{}]/g, '\\$&');
				self.settings.splitOn = new RegExp('\\s*' + delimiterEscaped + '+\\s*');
			}
	
			if ($input.attr('autocorrect')) {
				$control_input.attr('autocorrect', $input.attr('autocorrect'));
			}
	
			if ($input.attr('autocapitalize')) {
				$control_input.attr('autocapitalize', $input.attr('autocapitalize'));
			}
	
			self.$wrapper          = $wrapper;
			self.$control          = $control;
			self.$control_input    = $control_input;
			self.$dropdown         = $dropdown;
			self.$dropdown_content = $dropdown_content;
	
			$dropdown.on('mouseenter', '[data-selectable]', function() { return self.onOptionHover.apply(self, arguments); });
			$dropdown.on('mousedown click', '[data-selectable]', function() { return self.onOptionSelect.apply(self, arguments); });
			watchChildEvent($control, 'mousedown', '*:not(input)', function() { return self.onItemSelect.apply(self, arguments); });
			autoGrow($control_input);
	
			$control.on({
				mousedown : function() { return self.onMouseDown.apply(self, arguments); },
				click     : function() { return self.onClick.apply(self, arguments); }
			});
	
			$control_input.on({
				mousedown : function(e) { e.stopPropagation(); },
				keydown   : function() { return self.onKeyDown.apply(self, arguments); },
				keyup     : function() { return self.onKeyUp.apply(self, arguments); },
				keypress  : function() { return self.onKeyPress.apply(self, arguments); },
				resize    : function() { self.positionDropdown.apply(self, []); },
				blur      : function() { return self.onBlur.apply(self, arguments); },
				focus     : function() { self.ignoreBlur = false; return self.onFocus.apply(self, arguments); },
				paste     : function() { return self.onPaste.apply(self, arguments); }
			});
	
			$document.on('keydown' + eventNS, function(e) {
				self.isCmdDown = e[IS_MAC ? 'metaKey' : 'ctrlKey'];
				self.isCtrlDown = e[IS_MAC ? 'altKey' : 'ctrlKey'];
				self.isShiftDown = e.shiftKey;
			});
	
			$document.on('keyup' + eventNS, function(e) {
				if (e.keyCode === KEY_CTRL) self.isCtrlDown = false;
				if (e.keyCode === KEY_SHIFT) self.isShiftDown = false;
				if (e.keyCode === KEY_CMD) self.isCmdDown = false;
			});
	
			$document.on('mousedown' + eventNS, function(e) {
				if (self.isFocused) {
					// prevent events on the dropdown scrollbar from causing the control to blur
					if (e.target === self.$dropdown[0] || e.target.parentNode === self.$dropdown[0]) {
						return false;
					}
					// blur on click outside
					if (!self.$control.has(e.target).length && e.target !== self.$control[0]) {
						self.blur(e.target);
					}
				}
			});
	
			$window.on(['scroll' + eventNS, 'resize' + eventNS].join(' '), function() {
				if (self.isOpen) {
					self.positionDropdown.apply(self, arguments);
				}
			});
			$window.on('mousemove' + eventNS, function() {
				self.ignoreHover = false;
			});
	
			// store original children and tab index so that they can be
			// restored when the destroy() method is called.
			this.revertSettings = {
				$children : $input.children().detach(),
				tabindex  : $input.attr('tabindex')
			};
	
			$input.attr('tabindex', -1).hide().after(self.$wrapper);
	
			if ($.isArray(settings.items)) {
				self.setValue(settings.items);
				delete settings.items;
			}
	
			// feature detect for the validation API
			if (SUPPORTS_VALIDITY_API) {
				$input.on('invalid' + eventNS, function(e) {
					e.preventDefault();
					self.isInvalid = true;
					self.refreshState();
				});
			}
	
			self.updateOriginalInput();
			self.refreshItems();
			self.refreshState();
			self.updatePlaceholder();
			self.isSetup = true;
	
			if ($input.is(':disabled')) {
				self.disable();
			}
	
			self.on('change', this.onChange);
	
			$input.data('selectize', self);
			$input.addClass('selectized');
			self.trigger('initialize');
	
			// preload options
			if (settings.preload === true) {
				self.onSearchChange('');
			}
	
		},
	
		/**
		 * Sets up default rendering functions.
		 */
		setupTemplates: function() {
			var self = this;
			var field_label = self.settings.labelField;
			var field_optgroup = self.settings.optgroupLabelField;
	
			var templates = {
				'optgroup': function(data) {
					return '<div class="optgroup">' + data.html + '</div>';
				},
				'optgroup_header': function(data, escape) {
					return '<div class="optgroup-header">' + escape(data[field_optgroup]) + '</div>';
				},
				'option': function(data, escape) {
					return '<div class="option">' + escape(data[field_label]) + '</div>';
				},
				'item': function(data, escape) {
					return '<div class="item">' + escape(data[field_label]) + '</div>';
				},
				'option_create': function(data, escape) {
					return '<div class="create">Add <strong>' + escape(data.input) + '</strong>&hellip;</div>';
				}
			};
	
			self.settings.render = $.extend({}, templates, self.settings.render);
		},
	
		/**
		 * Maps fired events to callbacks provided
		 * in the settings used when creating the control.
		 */
		setupCallbacks: function() {
			var key, fn, callbacks = {
				'initialize'      : 'onInitialize',
				'change'          : 'onChange',
				'item_add'        : 'onItemAdd',
				'item_remove'     : 'onItemRemove',
				'clear'           : 'onClear',
				'option_add'      : 'onOptionAdd',
				'option_remove'   : 'onOptionRemove',
				'option_clear'    : 'onOptionClear',
				'optgroup_add'    : 'onOptionGroupAdd',
				'optgroup_remove' : 'onOptionGroupRemove',
				'optgroup_clear'  : 'onOptionGroupClear',
				'dropdown_open'   : 'onDropdownOpen',
				'dropdown_close'  : 'onDropdownClose',
				'type'            : 'onType',
				'load'            : 'onLoad',
				'focus'           : 'onFocus',
				'blur'            : 'onBlur'
			};
	
			for (key in callbacks) {
				if (callbacks.hasOwnProperty(key)) {
					fn = this.settings[callbacks[key]];
					if (fn) this.on(key, fn);
				}
			}
		},
	
		/**
		 * Triggered when the main control element
		 * has a click event.
		 *
		 * @param {object} e
		 * @return {boolean}
		 */
		onClick: function(e) {
			var self = this;
	
			// necessary for mobile webkit devices (manual focus triggering
			// is ignored unless invoked within a click event)
			if (!self.isFocused) {
				self.focus();
				e.preventDefault();
			}
		},
	
		/**
		 * Triggered when the main control element
		 * has a mouse down event.
		 *
		 * @param {object} e
		 * @return {boolean}
		 */
		onMouseDown: function(e) {
			var self = this;
			var defaultPrevented = e.isDefaultPrevented();
			var $target = $(e.target);
	
			if (self.isFocused) {
				// retain focus by preventing native handling. if the
				// event target is the input it should not be modified.
				// otherwise, text selection within the input won't work.
				if (e.target !== self.$control_input[0]) {
					if (self.settings.mode === 'single') {
						// toggle dropdown
						self.isOpen ? self.close() : self.open();
					} else if (!defaultPrevented) {
						self.setActiveItem(null);
					}
					return false;
				}
			} else {
				// give control focus
				if (!defaultPrevented) {
					window.setTimeout(function() {
						self.focus();
					}, 0);
				}
			}
		},
	
		/**
		 * Triggered when the value of the control has been changed.
		 * This should propagate the event to the original DOM
		 * input / select element.
		 */
		onChange: function() {
			this.$input.trigger('change');
		},
	
		/**
		 * Triggered on <input> paste.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onPaste: function(e) {
			var self = this;
	
			if (self.isFull() || self.isInputHidden || self.isLocked) {
				e.preventDefault();
				return;
			}
	
			// If a regex or string is included, this will split the pasted
			// input and create Items for each separate value
			if (self.settings.splitOn) {
	
				// Wait for pasted text to be recognized in value
				setTimeout(function() {
					var pastedText = self.$control_input.val();
					if(!pastedText.match(self.settings.splitOn)){ return }
	
					var splitInput = $.trim(pastedText).split(self.settings.splitOn);
					for (var i = 0, n = splitInput.length; i < n; i++) {
						self.createItem(splitInput[i]);
					}
				}, 0);
			}
		},
	
		/**
		 * Triggered on <input> keypress.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onKeyPress: function(e) {
			if (this.isLocked) return e && e.preventDefault();
			var character = String.fromCharCode(e.keyCode || e.which);
			if (this.settings.create && this.settings.mode === 'multi' && character === this.settings.delimiter) {
				this.createItem();
				e.preventDefault();
				return false;
			}
		},
	
		/**
		 * Triggered on <input> keydown.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onKeyDown: function(e) {
			var isInput = e.target === this.$control_input[0];
			var self = this;
	
			if (self.isLocked) {
				if (e.keyCode !== KEY_TAB) {
					e.preventDefault();
				}
				return;
			}
	
			switch (e.keyCode) {
				case KEY_A:
					if (self.isCmdDown) {
						self.selectAll();
						return;
					}
					break;
				case KEY_ESC:
					if (self.isOpen) {
						e.preventDefault();
						e.stopPropagation();
						self.close();
					}
					return;
				case KEY_N:
					if (!e.ctrlKey || e.altKey) break;
				case KEY_DOWN:
					if (!self.isOpen && self.hasOptions) {
						self.open();
					} else if (self.$activeOption) {
						self.ignoreHover = true;
						var $next = self.getAdjacentOption(self.$activeOption, 1);
						if ($next.length) self.setActiveOption($next, true, true);
					}
					e.preventDefault();
					return;
				case KEY_P:
					if (!e.ctrlKey || e.altKey) break;
				case KEY_UP:
					if (self.$activeOption) {
						self.ignoreHover = true;
						var $prev = self.getAdjacentOption(self.$activeOption, -1);
						if ($prev.length) self.setActiveOption($prev, true, true);
					}
					e.preventDefault();
					return;
				case KEY_RETURN:
					if (self.isOpen && self.$activeOption) {
						self.onOptionSelect({currentTarget: self.$activeOption});
						e.preventDefault();
					}
					return;
				case KEY_LEFT:
					self.advanceSelection(-1, e);
					return;
				case KEY_RIGHT:
					self.advanceSelection(1, e);
					return;
				case KEY_TAB:
					if (self.settings.selectOnTab && self.isOpen && self.$activeOption) {
						self.onOptionSelect({currentTarget: self.$activeOption});
	
						// Default behaviour is to jump to the next field, we only want this
						// if the current field doesn't accept any more entries
						if (!self.isFull()) {
							e.preventDefault();
						}
					}
					if (self.settings.create && self.createItem()) {
						e.preventDefault();
					}
					return;
				case KEY_BACKSPACE:
				case KEY_DELETE:
					self.deleteSelection(e);
					return;
			}
	
			if ((self.isFull() || self.isInputHidden) && !(IS_MAC ? e.metaKey : e.ctrlKey)) {
				e.preventDefault();
				return;
			}
		},
	
		/**
		 * Triggered on <input> keyup.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onKeyUp: function(e) {
			var self = this;
	
			if (self.isLocked) return e && e.preventDefault();
			var value = self.$control_input.val() || '';
			if (self.lastValue !== value) {
				self.lastValue = value;
				self.onSearchChange(value);
				self.refreshOptions();
				self.trigger('type', value);
			}
		},
	
		/**
		 * Invokes the user-provide option provider / loader.
		 *
		 * Note: this function is debounced in the Selectize
		 * constructor (by `settings.loadThrottle` milliseconds)
		 *
		 * @param {string} value
		 */
		onSearchChange: function(value) {
			var self = this;
			var fn = self.settings.load;
			if (!fn) return;
			if (self.loadedSearches.hasOwnProperty(value)) return;
			self.loadedSearches[value] = true;
			self.load(function(callback) {
				fn.apply(self, [value, callback]);
			});
		},
	
		/**
		 * Triggered on <input> focus.
		 *
		 * @param {object} e (optional)
		 * @returns {boolean}
		 */
		onFocus: function(e) {
			var self = this;
			var wasFocused = self.isFocused;
	
			if (self.isDisabled) {
				self.blur();
				e && e.preventDefault();
				return false;
			}
	
			if (self.ignoreFocus) return;
			self.isFocused = true;
			if (self.settings.preload === 'focus') self.onSearchChange('');
	
			if (!wasFocused) self.trigger('focus');
	
			if (!self.$activeItems.length) {
				self.showInput();
				self.setActiveItem(null);
				self.refreshOptions(!!self.settings.openOnFocus);
			}
	
			self.refreshState();
		},
	
		/**
		 * Triggered on <input> blur.
		 *
		 * @param {object} e
		 * @param {Element} dest
		 */
		onBlur: function(e, dest) {
			var self = this;
			if (!self.isFocused) return;
			self.isFocused = false;
	
			if (self.ignoreFocus) {
				return;
			} else if (!self.ignoreBlur && document.activeElement === self.$dropdown_content[0]) {
				// necessary to prevent IE closing the dropdown when the scrollbar is clicked
				self.ignoreBlur = true;
				self.onFocus(e);
				return;
			}
	
			var deactivate = function() {
				self.close();
				self.setTextboxValue('');
				self.setActiveItem(null);
				self.setActiveOption(null);
				self.setCaret(self.items.length);
				self.refreshState();
	
				// IE11 bug: element still marked as active
				dest && dest.focus && dest.focus();
	
				self.ignoreFocus = false;
				self.trigger('blur');
			};
	
			self.ignoreFocus = true;
			if (self.settings.create && self.settings.createOnBlur) {
				self.createItem(null, false, deactivate);
			} else {
				deactivate();
			}
		},
	
		/**
		 * Triggered when the user rolls over
		 * an option in the autocomplete dropdown menu.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onOptionHover: function(e) {
			if (this.ignoreHover) return;
			this.setActiveOption(e.currentTarget, false);
		},
	
		/**
		 * Triggered when the user clicks on an option
		 * in the autocomplete dropdown menu.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onOptionSelect: function(e) {
			var value, $target, $option, self = this;
	
			if (e.preventDefault) {
				e.preventDefault();
				e.stopPropagation();
			}
	
			$target = $(e.currentTarget);
			if ($target.hasClass('create')) {
				self.createItem(null, function() {
					if (self.settings.closeAfterSelect) {
						self.close();
					}
				});
			} else {
				value = $target.attr('data-value');
				if (typeof value !== 'undefined') {
					self.lastQuery = null;
					self.setTextboxValue('');
					self.addItem(value);
					if (self.settings.closeAfterSelect) {
						self.close();
					} else if (!self.settings.hideSelected && e.type && /mouse/.test(e.type)) {
						self.setActiveOption(self.getOption(value));
					}
				}
			}
		},
	
		/**
		 * Triggered when the user clicks on an item
		 * that has been selected.
		 *
		 * @param {object} e
		 * @returns {boolean}
		 */
		onItemSelect: function(e) {
			var self = this;
	
			if (self.isLocked) return;
			if (self.settings.mode === 'multi') {
				e.preventDefault();
				self.setActiveItem(e.currentTarget, e);
			}
		},
	
		/**
		 * Invokes the provided method that provides
		 * results to a callback---which are then added
		 * as options to the control.
		 *
		 * @param {function} fn
		 */
		load: function(fn) {
			var self = this;
			var $wrapper = self.$wrapper.addClass(self.settings.loadingClass);
	
			self.loading++;
			fn.apply(self, [function(results) {
				self.loading = Math.max(self.loading - 1, 0);
				if (results && results.length) {
					self.addOption(results);
					self.refreshOptions(self.isFocused && !self.isInputHidden);
				}
				if (!self.loading) {
					$wrapper.removeClass(self.settings.loadingClass);
				}
				self.trigger('load', results);
			}]);
		},
	
		/**
		 * Sets the input field of the control to the specified value.
		 *
		 * @param {string} value
		 */
		setTextboxValue: function(value) {
			var $input = this.$control_input;
			var changed = $input.val() !== value;
			if (changed) {
				$input.val(value).triggerHandler('update');
				this.lastValue = value;
			}
		},
	
		/**
		 * Returns the value of the control. If multiple items
		 * can be selected (e.g. <select multiple>), this returns
		 * an array. If only one item can be selected, this
		 * returns a string.
		 *
		 * @returns {mixed}
		 */
		getValue: function() {
			if (this.tagType === TAG_SELECT && this.$input.attr('multiple')) {
				return this.items;
			} else {
				return this.items.join(this.settings.delimiter);
			}
		},
	
		/**
		 * Resets the selected items to the given value.
		 *
		 * @param {mixed} value
		 */
		setValue: function(value, silent) {
			var events = silent ? [] : ['change'];
	
			debounce_events(this, events, function() {
				this.clear(silent);
				this.addItems(value, silent);
			});
		},
	
		/**
		 * Sets the selected item.
		 *
		 * @param {object} $item
		 * @param {object} e (optional)
		 */
		setActiveItem: function($item, e) {
			var self = this;
			var eventName;
			var i, idx, begin, end, item, swap;
			var $last;
	
			if (self.settings.mode === 'single') return;
			$item = $($item);
	
			// clear the active selection
			if (!$item.length) {
				$(self.$activeItems).removeClass('active');
				self.$activeItems = [];
				if (self.isFocused) {
					self.showInput();
				}
				return;
			}
	
			// modify selection
			eventName = e && e.type.toLowerCase();
	
			if (eventName === 'mousedown' && self.isShiftDown && self.$activeItems.length) {
				$last = self.$control.children('.active:last');
				begin = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$last[0]]);
				end   = Array.prototype.indexOf.apply(self.$control[0].childNodes, [$item[0]]);
				if (begin > end) {
					swap  = begin;
					begin = end;
					end   = swap;
				}
				for (i = begin; i <= end; i++) {
					item = self.$control[0].childNodes[i];
					if (self.$activeItems.indexOf(item) === -1) {
						$(item).addClass('active');
						self.$activeItems.push(item);
					}
				}
				e.preventDefault();
			} else if ((eventName === 'mousedown' && self.isCtrlDown) || (eventName === 'keydown' && this.isShiftDown)) {
				if ($item.hasClass('active')) {
					idx = self.$activeItems.indexOf($item[0]);
					self.$activeItems.splice(idx, 1);
					$item.removeClass('active');
				} else {
					self.$activeItems.push($item.addClass('active')[0]);
				}
			} else {
				$(self.$activeItems).removeClass('active');
				self.$activeItems = [$item.addClass('active')[0]];
			}
	
			// ensure control has focus
			self.hideInput();
			if (!this.isFocused) {
				self.focus();
			}
		},
	
		/**
		 * Sets the selected item in the dropdown menu
		 * of available options.
		 *
		 * @param {object} $object
		 * @param {boolean} scroll
		 * @param {boolean} animate
		 */
		setActiveOption: function($option, scroll, animate) {
			var height_menu, height_item, y;
			var scroll_top, scroll_bottom;
			var self = this;
	
			if (self.$activeOption) self.$activeOption.removeClass('active');
			self.$activeOption = null;
	
			$option = $($option);
			if (!$option.length) return;
	
			self.$activeOption = $option.addClass('active');
	
			if (scroll || !isset(scroll)) {
	
				height_menu   = self.$dropdown_content.height();
				height_item   = self.$activeOption.outerHeight(true);
				scroll        = self.$dropdown_content.scrollTop() || 0;
				y             = self.$activeOption.offset().top - self.$dropdown_content.offset().top + scroll;
				scroll_top    = y;
				scroll_bottom = y - height_menu + height_item;
	
				if (y + height_item > height_menu + scroll) {
					self.$dropdown_content.stop().animate({scrollTop: scroll_bottom}, animate ? self.settings.scrollDuration : 0);
				} else if (y < scroll) {
					self.$dropdown_content.stop().animate({scrollTop: scroll_top}, animate ? self.settings.scrollDuration : 0);
				}
	
			}
		},
	
		/**
		 * Selects all items (CTRL + A).
		 */
		selectAll: function() {
			var self = this;
			if (self.settings.mode === 'single') return;
	
			self.$activeItems = Array.prototype.slice.apply(self.$control.children(':not(input)').addClass('active'));
			if (self.$activeItems.length) {
				self.hideInput();
				self.close();
			}
			self.focus();
		},
	
		/**
		 * Hides the input element out of view, while
		 * retaining its focus.
		 */
		hideInput: function() {
			var self = this;
	
			self.setTextboxValue('');
			self.$control_input.css({opacity: 0, position: 'absolute', left: self.rtl ? 10000 : -10000});
			self.isInputHidden = true;
		},
	
		/**
		 * Restores input visibility.
		 */
		showInput: function() {
			this.$control_input.css({opacity: 1, position: 'relative', left: 0});
			this.isInputHidden = false;
		},
	
		/**
		 * Gives the control focus.
		 */
		focus: function() {
			var self = this;
			if (self.isDisabled) return;
	
			self.ignoreFocus = true;
			self.$control_input[0].focus();
			window.setTimeout(function() {
				self.ignoreFocus = false;
				self.onFocus();
			}, 0);
		},
	
		/**
		 * Forces the control out of focus.
		 *
		 * @param {Element} dest
		 */
		blur: function(dest) {
			this.$control_input[0].blur();
			this.onBlur(null, dest);
		},
	
		/**
		 * Returns a function that scores an object
		 * to show how good of a match it is to the
		 * provided query.
		 *
		 * @param {string} query
		 * @param {object} options
		 * @return {function}
		 */
		getScoreFunction: function(query) {
			return this.sifter.getScoreFunction(query, this.getSearchOptions());
		},
	
		/**
		 * Returns search options for sifter (the system
		 * for scoring and sorting results).
		 *
		 * @see https://github.com/brianreavis/sifter.js
		 * @return {object}
		 */
		getSearchOptions: function() {
			var settings = this.settings;
			var sort = settings.sortField;
			if (typeof sort === 'string') {
				sort = [{field: sort}];
			}
	
			return {
				fields      : settings.searchField,
				conjunction : settings.searchConjunction,
				sort        : sort
			};
		},
	
		/**
		 * Searches through available options and returns
		 * a sorted array of matches.
		 *
		 * Returns an object containing:
		 *
		 *   - query {string}
		 *   - tokens {array}
		 *   - total {int}
		 *   - items {array}
		 *
		 * @param {string} query
		 * @returns {object}
		 */
		search: function(query) {
			var i, value, score, result, calculateScore;
			var self     = this;
			var settings = self.settings;
			var options  = this.getSearchOptions();
	
			// validate user-provided result scoring function
			if (settings.score) {
				calculateScore = self.settings.score.apply(this, [query]);
				if (typeof calculateScore !== 'function') {
					throw new Error('Selectize "score" setting must be a function that returns a function');
				}
			}
	
			// perform search
			if (query !== self.lastQuery) {
				self.lastQuery = query;
				result = self.sifter.search(query, $.extend(options, {score: calculateScore}));
				self.currentResults = result;
			} else {
				result = $.extend(true, {}, self.currentResults);
			}
	
			// filter out selected items
			if (settings.hideSelected) {
				for (i = result.items.length - 1; i >= 0; i--) {
					if (self.items.indexOf(hash_key(result.items[i].id)) !== -1) {
						result.items.splice(i, 1);
					}
				}
			}
	
			return result;
		},
	
		/**
		 * Refreshes the list of available options shown
		 * in the autocomplete dropdown menu.
		 *
		 * @param {boolean} triggerDropdown
		 */
		refreshOptions: function(triggerDropdown) {
			var i, j, k, n, groups, groups_order, option, option_html, optgroup, optgroups, html, html_children, has_create_option;
			var $active, $active_before, $create;
	
			if (typeof triggerDropdown === 'undefined') {
				triggerDropdown = true;
			}
	
			var self              = this;
			var query             = $.trim(self.$control_input.val());
			var results           = self.search(query);
			var $dropdown_content = self.$dropdown_content;
			var active_before     = self.$activeOption && hash_key(self.$activeOption.attr('data-value'));
	
			// build markup
			n = results.items.length;
			if (typeof self.settings.maxOptions === 'number') {
				n = Math.min(n, self.settings.maxOptions);
			}
	
			// render and group available options individually
			groups = {};
			groups_order = [];
	
			for (i = 0; i < n; i++) {
				option      = self.options[results.items[i].id];
				option_html = self.render('option', option);
				optgroup    = option[self.settings.optgroupField] || '';
				optgroups   = $.isArray(optgroup) ? optgroup : [optgroup];
	
				for (j = 0, k = optgroups && optgroups.length; j < k; j++) {
					optgroup = optgroups[j];
					if (!self.optgroups.hasOwnProperty(optgroup)) {
						optgroup = '';
					}
					if (!groups.hasOwnProperty(optgroup)) {
						groups[optgroup] = document.createDocumentFragment();
						groups_order.push(optgroup);
					}
					groups[optgroup].appendChild(option_html);
				}
			}
	
			// sort optgroups
			if (this.settings.lockOptgroupOrder) {
				groups_order.sort(function(a, b) {
					var a_order = self.optgroups[a].$order || 0;
					var b_order = self.optgroups[b].$order || 0;
					return a_order - b_order;
				});
			}
	
			// render optgroup headers & join groups
			html = document.createDocumentFragment();
			for (i = 0, n = groups_order.length; i < n; i++) {
				optgroup = groups_order[i];
				if (self.optgroups.hasOwnProperty(optgroup) && groups[optgroup].childNodes.length) {
					// render the optgroup header and options within it,
					// then pass it to the wrapper template
					html_children = document.createDocumentFragment();
					html_children.appendChild(self.render('optgroup_header', self.optgroups[optgroup]));
					html_children.appendChild(groups[optgroup]);
	
					html.appendChild(self.render('optgroup', $.extend({}, self.optgroups[optgroup], {
						html: domToString(html_children),
						dom:  html_children
					})));
				} else {
					html.appendChild(groups[optgroup]);
				}
			}
	
			$dropdown_content.html(html);
	
			// highlight matching terms inline
			if (self.settings.highlight && results.query.length && results.tokens.length) {
				$dropdown_content.removeHighlight();
				for (i = 0, n = results.tokens.length; i < n; i++) {
					highlight($dropdown_content, results.tokens[i].regex);
				}
			}
	
			// add "selected" class to selected options
			if (!self.settings.hideSelected) {
				for (i = 0, n = self.items.length; i < n; i++) {
					self.getOption(self.items[i]).addClass('selected');
				}
			}
	
			// add create option
			has_create_option = self.canCreate(query);
			if (has_create_option) {
				$dropdown_content.prepend(self.render('option_create', {input: query}));
				$create = $($dropdown_content[0].childNodes[0]);
			}
	
			// activate
			self.hasOptions = results.items.length > 0 || has_create_option;
			if (self.hasOptions) {
				if (results.items.length > 0) {
					$active_before = active_before && self.getOption(active_before);
					if ($active_before && $active_before.length) {
						$active = $active_before;
					} else if (self.settings.mode === 'single' && self.items.length) {
						$active = self.getOption(self.items[0]);
					}
					if (!$active || !$active.length) {
						if ($create && !self.settings.addPrecedence) {
							$active = self.getAdjacentOption($create, 1);
						} else {
							$active = $dropdown_content.find('[data-selectable]:first');
						}
					}
				} else {
					$active = $create;
				}
				self.setActiveOption($active);
				if (triggerDropdown && !self.isOpen) { self.open(); }
			} else {
				self.setActiveOption(null);
				if (triggerDropdown && self.isOpen) { self.close(); }
			}
		},
	
		/**
		 * Adds an available option. If it already exists,
		 * nothing will happen. Note: this does not refresh
		 * the options list dropdown (use `refreshOptions`
		 * for that).
		 *
		 * Usage:
		 *
		 *   this.addOption(data)
		 *
		 * @param {object|array} data
		 */
		addOption: function(data) {
			var i, n, value, self = this;
	
			if ($.isArray(data)) {
				for (i = 0, n = data.length; i < n; i++) {
					self.addOption(data[i]);
				}
				return;
			}
	
			if (value = self.registerOption(data)) {
				self.userOptions[value] = true;
				self.lastQuery = null;
				self.trigger('option_add', value, data);
			}
		},
	
		/**
		 * Registers an option to the pool of options.
		 *
		 * @param {object} data
		 * @return {boolean|string}
		 */
		registerOption: function(data) {
			var key = hash_key(data[this.settings.valueField]);
			if (typeof key === 'undefined' || key === null || this.options.hasOwnProperty(key)) return false;
			data.$order = data.$order || ++this.order;
			this.options[key] = data;
			return key;
		},
	
		/**
		 * Registers an option group to the pool of option groups.
		 *
		 * @param {object} data
		 * @return {boolean|string}
		 */
		registerOptionGroup: function(data) {
			var key = hash_key(data[this.settings.optgroupValueField]);
			if (!key) return false;
	
			data.$order = data.$order || ++this.order;
			this.optgroups[key] = data;
			return key;
		},
	
		/**
		 * Registers a new optgroup for options
		 * to be bucketed into.
		 *
		 * @param {string} id
		 * @param {object} data
		 */
		addOptionGroup: function(id, data) {
			data[this.settings.optgroupValueField] = id;
			if (id = this.registerOptionGroup(data)) {
				this.trigger('optgroup_add', id, data);
			}
		},
	
		/**
		 * Removes an existing option group.
		 *
		 * @param {string} id
		 */
		removeOptionGroup: function(id) {
			if (this.optgroups.hasOwnProperty(id)) {
				delete this.optgroups[id];
				this.renderCache = {};
				this.trigger('optgroup_remove', id);
			}
		},
	
		/**
		 * Clears all existing option groups.
		 */
		clearOptionGroups: function() {
			this.optgroups = {};
			this.renderCache = {};
			this.trigger('optgroup_clear');
		},
	
		/**
		 * Updates an option available for selection. If
		 * it is visible in the selected items or options
		 * dropdown, it will be re-rendered automatically.
		 *
		 * @param {string} value
		 * @param {object} data
		 */
		updateOption: function(value, data) {
			var self = this;
			var $item, $item_new;
			var value_new, index_item, cache_items, cache_options, order_old;
	
			value     = hash_key(value);
			value_new = hash_key(data[self.settings.valueField]);
	
			// sanity checks
			if (value === null) return;
			if (!self.options.hasOwnProperty(value)) return;
			if (typeof value_new !== 'string') throw new Error('Value must be set in option data');
	
			order_old = self.options[value].$order;
	
			// update references
			if (value_new !== value) {
				delete self.options[value];
				index_item = self.items.indexOf(value);
				if (index_item !== -1) {
					self.items.splice(index_item, 1, value_new);
				}
			}
			data.$order = data.$order || order_old;
			self.options[value_new] = data;
	
			// invalidate render cache
			cache_items = self.renderCache['item'];
			cache_options = self.renderCache['option'];
	
			if (cache_items) {
				delete cache_items[value];
				delete cache_items[value_new];
			}
			if (cache_options) {
				delete cache_options[value];
				delete cache_options[value_new];
			}
	
			// update the item if it's selected
			if (self.items.indexOf(value_new) !== -1) {
				$item = self.getItem(value);
				$item_new = $(self.render('item', data));
				if ($item.hasClass('active')) $item_new.addClass('active');
				$item.replaceWith($item_new);
			}
	
			// invalidate last query because we might have updated the sortField
			self.lastQuery = null;
	
			// update dropdown contents
			if (self.isOpen) {
				self.refreshOptions(false);
			}
		},
	
		/**
		 * Removes a single option.
		 *
		 * @param {string} value
		 * @param {boolean} silent
		 */
		removeOption: function(value, silent) {
			var self = this;
			value = hash_key(value);
	
			var cache_items = self.renderCache['item'];
			var cache_options = self.renderCache['option'];
			if (cache_items) delete cache_items[value];
			if (cache_options) delete cache_options[value];
	
			delete self.userOptions[value];
			delete self.options[value];
			self.lastQuery = null;
			self.trigger('option_remove', value);
			self.removeItem(value, silent);
		},
	
		/**
		 * Clears all options.
		 */
		clearOptions: function() {
			var self = this;
	
			self.loadedSearches = {};
			self.userOptions = {};
			self.renderCache = {};
			self.options = self.sifter.items = {};
			self.lastQuery = null;
			self.trigger('option_clear');
			self.clear();
		},
	
		/**
		 * Returns the jQuery element of the option
		 * matching the given value.
		 *
		 * @param {string} value
		 * @returns {object}
		 */
		getOption: function(value) {
			return this.getElementWithValue(value, this.$dropdown_content.find('[data-selectable]'));
		},
	
		/**
		 * Returns the jQuery element of the next or
		 * previous selectable option.
		 *
		 * @param {object} $option
		 * @param {int} direction  can be 1 for next or -1 for previous
		 * @return {object}
		 */
		getAdjacentOption: function($option, direction) {
			var $options = this.$dropdown.find('[data-selectable]');
			var index    = $options.index($option) + direction;
	
			return index >= 0 && index < $options.length ? $options.eq(index) : $();
		},
	
		/**
		 * Finds the first element with a "data-value" attribute
		 * that matches the given value.
		 *
		 * @param {mixed} value
		 * @param {object} $els
		 * @return {object}
		 */
		getElementWithValue: function(value, $els) {
			value = hash_key(value);
	
			if (typeof value !== 'undefined' && value !== null) {
				for (var i = 0, n = $els.length; i < n; i++) {
					if ($els[i].getAttribute('data-value') === value) {
						return $($els[i]);
					}
				}
			}
	
			return $();
		},
	
		/**
		 * Returns the jQuery element of the item
		 * matching the given value.
		 *
		 * @param {string} value
		 * @returns {object}
		 */
		getItem: function(value) {
			return this.getElementWithValue(value, this.$control.children());
		},
	
		/**
		 * "Selects" multiple items at once. Adds them to the list
		 * at the current caret position.
		 *
		 * @param {string} value
		 * @param {boolean} silent
		 */
		addItems: function(values, silent) {
			var items = $.isArray(values) ? values : [values];
			for (var i = 0, n = items.length; i < n; i++) {
				this.isPending = (i < n - 1);
				this.addItem(items[i], silent);
			}
		},
	
		/**
		 * "Selects" an item. Adds it to the list
		 * at the current caret position.
		 *
		 * @param {string} value
		 * @param {boolean} silent
		 */
		addItem: function(value, silent) {
			var events = silent ? [] : ['change'];
	
			debounce_events(this, events, function() {
				var $item, $option, $options;
				var self = this;
				var inputMode = self.settings.mode;
				var i, active, value_next, wasFull;
				value = hash_key(value);
	
				if (self.items.indexOf(value) !== -1) {
					if (inputMode === 'single') self.close();
					return;
				}
	
				if (!self.options.hasOwnProperty(value)) return;
				if (inputMode === 'single') self.clear(silent);
				if (inputMode === 'multi' && self.isFull()) return;
	
				$item = $(self.render('item', self.options[value]));
				wasFull = self.isFull();
				self.items.splice(self.caretPos, 0, value);
				self.insertAtCaret($item);
				if (!self.isPending || (!wasFull && self.isFull())) {
					self.refreshState();
				}
	
				if (self.isSetup) {
					$options = self.$dropdown_content.find('[data-selectable]');
	
					// update menu / remove the option (if this is not one item being added as part of series)
					if (!self.isPending) {
						$option = self.getOption(value);
						value_next = self.getAdjacentOption($option, 1).attr('data-value');
						self.refreshOptions(self.isFocused && inputMode !== 'single');
						if (value_next) {
							self.setActiveOption(self.getOption(value_next));
						}
					}
	
					// hide the menu if the maximum number of items have been selected or no options are left
					if (!$options.length || self.isFull()) {
						self.close();
					} else {
						self.positionDropdown();
					}
	
					self.updatePlaceholder();
					self.trigger('item_add', value, $item);
					self.updateOriginalInput({silent: silent});
				}
			});
		},
	
		/**
		 * Removes the selected item matching
		 * the provided value.
		 *
		 * @param {string} value
		 */
		removeItem: function(value, silent) {
			var self = this;
			var $item, i, idx;
	
			$item = (value instanceof $) ? value : self.getItem(value);
			value = hash_key($item.attr('data-value'));
			i = self.items.indexOf(value);
	
			if (i !== -1) {
				$item.remove();
				if ($item.hasClass('active')) {
					idx = self.$activeItems.indexOf($item[0]);
					self.$activeItems.splice(idx, 1);
				}
	
				self.items.splice(i, 1);
				self.lastQuery = null;
				if (!self.settings.persist && self.userOptions.hasOwnProperty(value)) {
					self.removeOption(value, silent);
				}
	
				if (i < self.caretPos) {
					self.setCaret(self.caretPos - 1);
				}
	
				self.refreshState();
				self.updatePlaceholder();
				self.updateOriginalInput({silent: silent});
				self.positionDropdown();
				self.trigger('item_remove', value, $item);
			}
		},
	
		/**
		 * Invokes the `create` method provided in the
		 * selectize options that should provide the data
		 * for the new item, given the user input.
		 *
		 * Once this completes, it will be added
		 * to the item list.
		 *
		 * @param {string} value
		 * @param {boolean} [triggerDropdown]
		 * @param {function} [callback]
		 * @return {boolean}
		 */
		createItem: function(input, triggerDropdown) {
			var self  = this;
			var caret = self.caretPos;
			input = input || $.trim(self.$control_input.val() || '');
	
			var callback = arguments[arguments.length - 1];
			if (typeof callback !== 'function') callback = function() {};
	
			if (typeof triggerDropdown !== 'boolean') {
				triggerDropdown = true;
			}
	
			if (!self.canCreate(input)) {
				callback();
				return false;
			}
	
			self.lock();
	
			var setup = (typeof self.settings.create === 'function') ? this.settings.create : function(input) {
				var data = {};
				data[self.settings.labelField] = input;
				data[self.settings.valueField] = input;
				return data;
			};
	
			var create = once(function(data) {
				self.unlock();
	
				if (!data || typeof data !== 'object') return callback();
				var value = hash_key(data[self.settings.valueField]);
				if (typeof value !== 'string') return callback();
	
				self.setTextboxValue('');
				self.addOption(data);
				self.setCaret(caret);
				self.addItem(value);
				self.refreshOptions(triggerDropdown && self.settings.mode !== 'single');
				callback(data);
			});
	
			var output = setup.apply(this, [input, create]);
			if (typeof output !== 'undefined') {
				create(output);
			}
	
			return true;
		},
	
		/**
		 * Re-renders the selected item lists.
		 */
		refreshItems: function() {
			this.lastQuery = null;
	
			if (this.isSetup) {
				this.addItem(this.items);
			}
	
			this.refreshState();
			this.updateOriginalInput();
		},
	
		/**
		 * Updates all state-dependent attributes
		 * and CSS classes.
		 */
		refreshState: function() {
			this.refreshValidityState();
			this.refreshClasses();
		},
	
		/**
		 * Update the `required` attribute of both input and control input.
		 *
		 * The `required` property needs to be activated on the control input
		 * for the error to be displayed at the right place. `required` also
		 * needs to be temporarily deactivated on the input since the input is
		 * hidden and can't show errors.
		 */
		refreshValidityState: function() {
			if (!this.isRequired) return false;
	
			var invalid = !this.items.length;
	
			this.isInvalid = invalid;
			this.$control_input.prop('required', invalid);
			this.$input.prop('required', !invalid);
		},
	
		/**
		 * Updates all state-dependent CSS classes.
		 */
		refreshClasses: function() {
			var self     = this;
			var isFull   = self.isFull();
			var isLocked = self.isLocked;
	
			self.$wrapper
				.toggleClass('rtl', self.rtl);
	
			self.$control
				.toggleClass('focus', self.isFocused)
				.toggleClass('disabled', self.isDisabled)
				.toggleClass('required', self.isRequired)
				.toggleClass('invalid', self.isInvalid)
				.toggleClass('locked', isLocked)
				.toggleClass('full', isFull).toggleClass('not-full', !isFull)
				.toggleClass('input-active', self.isFocused && !self.isInputHidden)
				.toggleClass('dropdown-active', self.isOpen)
				.toggleClass('has-options', !$.isEmptyObject(self.options))
				.toggleClass('has-items', self.items.length > 0);
	
			self.$control_input.data('grow', !isFull && !isLocked);
		},
	
		/**
		 * Determines whether or not more items can be added
		 * to the control without exceeding the user-defined maximum.
		 *
		 * @returns {boolean}
		 */
		isFull: function() {
			return this.settings.maxItems !== null && this.items.length >= this.settings.maxItems;
		},
	
		/**
		 * Refreshes the original <select> or <input>
		 * element to reflect the current state.
		 */
		updateOriginalInput: function(opts) {
			var i, n, options, label, self = this;
			opts = opts || {};
	
			if (self.tagType === TAG_SELECT) {
				options = [];
				for (i = 0, n = self.items.length; i < n; i++) {
					label = self.options[self.items[i]][self.settings.labelField] || '';
					options.push('<option value="' + escape_html(self.items[i]) + '" selected="selected">' + escape_html(label) + '</option>');
				}
				if (!options.length && !this.$input.attr('multiple')) {
					options.push('<option value="" selected="selected"></option>');
				}
				self.$input.html(options.join(''));
			} else {
				self.$input.val(self.getValue());
				self.$input.attr('value',self.$input.val());
			}
	
			if (self.isSetup) {
				if (!opts.silent) {
					self.trigger('change', self.$input.val());
				}
			}
		},
	
		/**
		 * Shows/hide the input placeholder depending
		 * on if there items in the list already.
		 */
		updatePlaceholder: function() {
			if (!this.settings.placeholder) return;
			var $input = this.$control_input;
	
			if (this.items.length) {
				$input.removeAttr('placeholder');
			} else {
				$input.attr('placeholder', this.settings.placeholder);
			}
			$input.triggerHandler('update', {force: true});
		},
	
		/**
		 * Shows the autocomplete dropdown containing
		 * the available options.
		 */
		open: function() {
			var self = this;
	
			if (self.isLocked || self.isOpen || (self.settings.mode === 'multi' && self.isFull())) return;
			self.focus();
			self.isOpen = true;
			self.refreshState();
			self.$dropdown.css({visibility: 'hidden', display: 'block'});
			self.positionDropdown();
			self.$dropdown.css({visibility: 'visible'});
			self.trigger('dropdown_open', self.$dropdown);
		},
	
		/**
		 * Closes the autocomplete dropdown menu.
		 */
		close: function() {
			var self = this;
			var trigger = self.isOpen;
	
			if (self.settings.mode === 'single' && self.items.length) {
				self.hideInput();
				self.$control_input.blur(); // close keyboard on iOS
			}
	
			self.isOpen = false;
			self.$dropdown.hide();
			self.setActiveOption(null);
			self.refreshState();
	
			if (trigger) self.trigger('dropdown_close', self.$dropdown);
		},
	
		/**
		 * Calculates and applies the appropriate
		 * position of the dropdown.
		 */
		positionDropdown: function() {
			var $control = this.$control;
			var offset = this.settings.dropdownParent === 'body' ? $control.offset() : $control.position();
			offset.top += $control.outerHeight(true);
	
			this.$dropdown.css({
				width : $control.outerWidth(),
				top   : offset.top,
				left  : offset.left
			});
		},
	
		/**
		 * Resets / clears all selected items
		 * from the control.
		 *
		 * @param {boolean} silent
		 */
		clear: function(silent) {
			var self = this;
	
			if (!self.items.length) return;
			self.$control.children(':not(input)').remove();
			self.items = [];
			self.lastQuery = null;
			self.setCaret(0);
			self.setActiveItem(null);
			self.updatePlaceholder();
			self.updateOriginalInput({silent: silent});
			self.refreshState();
			self.showInput();
			self.trigger('clear');
		},
	
		/**
		 * A helper method for inserting an element
		 * at the current caret position.
		 *
		 * @param {object} $el
		 */
		insertAtCaret: function($el) {
			var caret = Math.min(this.caretPos, this.items.length);
			if (caret === 0) {
				this.$control.prepend($el);
			} else {
				$(this.$control[0].childNodes[caret]).before($el);
			}
			this.setCaret(caret + 1);
		},
	
		/**
		 * Removes the current selected item(s).
		 *
		 * @param {object} e (optional)
		 * @returns {boolean}
		 */
		deleteSelection: function(e) {
			var i, n, direction, selection, values, caret, option_select, $option_select, $tail;
			var self = this;
	
			direction = (e && e.keyCode === KEY_BACKSPACE) ? -1 : 1;
			selection = getSelection(self.$control_input[0]);
	
			if (self.$activeOption && !self.settings.hideSelected) {
				option_select = self.getAdjacentOption(self.$activeOption, -1).attr('data-value');
			}
	
			// determine items that will be removed
			values = [];
	
			if (self.$activeItems.length) {
				$tail = self.$control.children('.active:' + (direction > 0 ? 'last' : 'first'));
				caret = self.$control.children(':not(input)').index($tail);
				if (direction > 0) { caret++; }
	
				for (i = 0, n = self.$activeItems.length; i < n; i++) {
					values.push($(self.$activeItems[i]).attr('data-value'));
				}
				if (e) {
					e.preventDefault();
					e.stopPropagation();
				}
			} else if ((self.isFocused || self.settings.mode === 'single') && self.items.length) {
				if (direction < 0 && selection.start === 0 && selection.length === 0) {
					values.push(self.items[self.caretPos - 1]);
				} else if (direction > 0 && selection.start === self.$control_input.val().length) {
					values.push(self.items[self.caretPos]);
				}
			}
	
			// allow the callback to abort
			if (!values.length || (typeof self.settings.onDelete === 'function' && self.settings.onDelete.apply(self, [values]) === false)) {
				return false;
			}
	
			// perform removal
			if (typeof caret !== 'undefined') {
				self.setCaret(caret);
			}
			while (values.length) {
				self.removeItem(values.pop());
			}
	
			self.showInput();
			self.positionDropdown();
			self.refreshOptions(true);
	
			// select previous option
			if (option_select) {
				$option_select = self.getOption(option_select);
				if ($option_select.length) {
					self.setActiveOption($option_select);
				}
			}
	
			return true;
		},
	
		/**
		 * Selects the previous / next item (depending
		 * on the `direction` argument).
		 *
		 * > 0 - right
		 * < 0 - left
		 *
		 * @param {int} direction
		 * @param {object} e (optional)
		 */
		advanceSelection: function(direction, e) {
			var tail, selection, idx, valueLength, cursorAtEdge, $tail;
			var self = this;
	
			if (direction === 0) return;
			if (self.rtl) direction *= -1;
	
			tail = direction > 0 ? 'last' : 'first';
			selection = getSelection(self.$control_input[0]);
	
			if (self.isFocused && !self.isInputHidden) {
				valueLength = self.$control_input.val().length;
				cursorAtEdge = direction < 0
					? selection.start === 0 && selection.length === 0
					: selection.start === valueLength;
	
				if (cursorAtEdge && !valueLength) {
					self.advanceCaret(direction, e);
				}
			} else {
				$tail = self.$control.children('.active:' + tail);
				if ($tail.length) {
					idx = self.$control.children(':not(input)').index($tail);
					self.setActiveItem(null);
					self.setCaret(direction > 0 ? idx + 1 : idx);
				}
			}
		},
	
		/**
		 * Moves the caret left / right.
		 *
		 * @param {int} direction
		 * @param {object} e (optional)
		 */
		advanceCaret: function(direction, e) {
			var self = this, fn, $adj;
	
			if (direction === 0) return;
	
			fn = direction > 0 ? 'next' : 'prev';
			if (self.isShiftDown) {
				$adj = self.$control_input[fn]();
				if ($adj.length) {
					self.hideInput();
					self.setActiveItem($adj);
					e && e.preventDefault();
				}
			} else {
				self.setCaret(self.caretPos + direction);
			}
		},
	
		/**
		 * Moves the caret to the specified index.
		 *
		 * @param {int} i
		 */
		setCaret: function(i) {
			var self = this;
	
			if (self.settings.mode === 'single') {
				i = self.items.length;
			} else {
				i = Math.max(0, Math.min(self.items.length, i));
			}
	
			if(!self.isPending) {
				// the input must be moved by leaving it in place and moving the
				// siblings, due to the fact that focus cannot be restored once lost
				// on mobile webkit devices
				var j, n, fn, $children, $child;
				$children = self.$control.children(':not(input)');
				for (j = 0, n = $children.length; j < n; j++) {
					$child = $($children[j]).detach();
					if (j <  i) {
						self.$control_input.before($child);
					} else {
						self.$control.append($child);
					}
				}
			}
	
			self.caretPos = i;
		},
	
		/**
		 * Disables user input on the control. Used while
		 * items are being asynchronously created.
		 */
		lock: function() {
			this.close();
			this.isLocked = true;
			this.refreshState();
		},
	
		/**
		 * Re-enables user input on the control.
		 */
		unlock: function() {
			this.isLocked = false;
			this.refreshState();
		},
	
		/**
		 * Disables user input on the control completely.
		 * While disabled, it cannot receive focus.
		 */
		disable: function() {
			var self = this;
			self.$input.prop('disabled', true);
			self.$control_input.prop('disabled', true).prop('tabindex', -1);
			self.isDisabled = true;
			self.lock();
		},
	
		/**
		 * Enables the control so that it can respond
		 * to focus and user input.
		 */
		enable: function() {
			var self = this;
			self.$input.prop('disabled', false);
			self.$control_input.prop('disabled', false).prop('tabindex', self.tabIndex);
			self.isDisabled = false;
			self.unlock();
		},
	
		/**
		 * Completely destroys the control and
		 * unbinds all event listeners so that it can
		 * be garbage collected.
		 */
		destroy: function() {
			var self = this;
			var eventNS = self.eventNS;
			var revertSettings = self.revertSettings;
	
			self.trigger('destroy');
			self.off();
			self.$wrapper.remove();
			self.$dropdown.remove();
	
			self.$input
				.html('')
				.append(revertSettings.$children)
				.removeAttr('tabindex')
				.removeClass('selectized')
				.attr({tabindex: revertSettings.tabindex})
				.show();
	
			self.$control_input.removeData('grow');
			self.$input.removeData('selectize');
	
			$(window).off(eventNS);
			$(document).off(eventNS);
			$(document.body).off(eventNS);
	
			delete self.$input[0].selectize;
		},
	
		/**
		 * A helper method for rendering "item" and
		 * "option" templates, given the data.
		 *
		 * @param {string} templateName
		 * @param {object} data
		 * @returns {string}
		 */
		render: function(templateName, data) {
			var value, id, label;
			var html = '';
			var cache = false;
			var self = this;
			var regex_tag = /^[\t \r\n]*<([a-z][a-z0-9\-_]*(?:\:[a-z][a-z0-9\-_]*)?)/i;
	
			if (templateName === 'option' || templateName === 'item') {
				value = hash_key(data[self.settings.valueField]);
				cache = !!value;
			}
	
			// pull markup from cache if it exists
			if (cache) {
				if (!isset(self.renderCache[templateName])) {
					self.renderCache[templateName] = {};
				}
				if (self.renderCache[templateName].hasOwnProperty(value)) {
					return self.renderCache[templateName][value];
				}
			}
	
			// render markup
			html = $(self.settings.render[templateName].apply(this, [data, escape_html]));
	
			// add mandatory attributes
			if (templateName === 'option' || templateName === 'option_create') {
				html.attr('data-selectable', '');
			}
			else if (templateName === 'optgroup') {
				id = data[self.settings.optgroupValueField] || '';
				html.attr('data-group', id);
			}
			if (templateName === 'option' || templateName === 'item') {
				html.attr('data-value', value || '');
			}
	
			// update cache
			if (cache) {
				self.renderCache[templateName][value] = html[0];
			}
	
			return html[0];
		},
	
		/**
		 * Clears the render cache for a template. If
		 * no template is given, clears all render
		 * caches.
		 *
		 * @param {string} templateName
		 */
		clearCache: function(templateName) {
			var self = this;
			if (typeof templateName === 'undefined') {
				self.renderCache = {};
			} else {
				delete self.renderCache[templateName];
			}
		},
	
		/**
		 * Determines whether or not to display the
		 * create item prompt, given a user input.
		 *
		 * @param {string} input
		 * @return {boolean}
		 */
		canCreate: function(input) {
			var self = this;
			if (!self.settings.create) return false;
			var filter = self.settings.createFilter;
			return input.length
				&& (typeof filter !== 'function' || filter.apply(self, [input]))
				&& (typeof filter !== 'string' || new RegExp(filter).test(input))
				&& (!(filter instanceof RegExp) || filter.test(input));
		}
	
	});
	
	
	Selectize.count = 0;
	Selectize.defaults = {
		options: [],
		optgroups: [],
	
		plugins: [],
		delimiter: ',',
		splitOn: null, // regexp or string for splitting up values from a paste command
		persist: true,
		diacritics: true,
		create: false,
		createOnBlur: false,
		createFilter: null,
		highlight: true,
		openOnFocus: true,
		maxOptions: 1000,
		maxItems: null,
		hideSelected: null,
		addPrecedence: false,
		selectOnTab: false,
		preload: false,
		allowEmptyOption: false,
		closeAfterSelect: false,
	
		scrollDuration: 60,
		loadThrottle: 300,
		loadingClass: 'loading',
	
		dataAttr: 'data-data',
		optgroupField: 'optgroup',
		valueField: 'value',
		labelField: 'text',
		optgroupLabelField: 'label',
		optgroupValueField: 'value',
		lockOptgroupOrder: false,
	
		sortField: '$order',
		searchField: ['text'],
		searchConjunction: 'and',
	
		mode: null,
		wrapperClass: 'selectize-control',
		inputClass: 'selectize-input',
		dropdownClass: 'selectize-dropdown',
		dropdownContentClass: 'selectize-dropdown-content',
	
		dropdownParent: null,
	
		copyClassesToDropdown: true,
	
		/*
		load                 : null, // function(query, callback) { ... }
		score                : null, // function(search) { ... }
		onInitialize         : null, // function() { ... }
		onChange             : null, // function(value) { ... }
		onItemAdd            : null, // function(value, $item) { ... }
		onItemRemove         : null, // function(value) { ... }
		onClear              : null, // function() { ... }
		onOptionAdd          : null, // function(value, data) { ... }
		onOptionRemove       : null, // function(value) { ... }
		onOptionClear        : null, // function() { ... }
		onOptionGroupAdd     : null, // function(id, data) { ... }
		onOptionGroupRemove  : null, // function(id) { ... }
		onOptionGroupClear   : null, // function() { ... }
		onDropdownOpen       : null, // function($dropdown) { ... }
		onDropdownClose      : null, // function($dropdown) { ... }
		onType               : null, // function(str) { ... }
		onDelete             : null, // function(values) { ... }
		*/
	
		render: {
			/*
			item: null,
			optgroup: null,
			optgroup_header: null,
			option: null,
			option_create: null
			*/
		}
	};
	
	
	$.fn.selectize = function(settings_user) {
		var defaults             = $.fn.selectize.defaults;
		var settings             = $.extend({}, defaults, settings_user);
		var attr_data            = settings.dataAttr;
		var field_label          = settings.labelField;
		var field_value          = settings.valueField;
		var field_optgroup       = settings.optgroupField;
		var field_optgroup_label = settings.optgroupLabelField;
		var field_optgroup_value = settings.optgroupValueField;
	
		/**
		 * Initializes selectize from a <input type="text"> element.
		 *
		 * @param {object} $input
		 * @param {object} settings_element
		 */
		var init_textbox = function($input, settings_element) {
			var i, n, values, option;
	
			var data_raw = $input.attr(attr_data);
	
			if (!data_raw) {
				var value = $.trim($input.val() || '');
				if (!settings.allowEmptyOption && !value.length) return;
				values = value.split(settings.delimiter);
				for (i = 0, n = values.length; i < n; i++) {
					option = {};
					option[field_label] = values[i];
					option[field_value] = values[i];
					settings_element.options.push(option);
				}
				settings_element.items = values;
			} else {
				settings_element.options = JSON.parse(data_raw);
				for (i = 0, n = settings_element.options.length; i < n; i++) {
					settings_element.items.push(settings_element.options[i][field_value]);
				}
			}
		};
	
		/**
		 * Initializes selectize from a <select> element.
		 *
		 * @param {object} $input
		 * @param {object} settings_element
		 */
		var init_select = function($input, settings_element) {
			var i, n, tagName, $children, order = 0;
			var options = settings_element.options;
			var optionsMap = {};
	
			var readData = function($el) {
				var data = attr_data && $el.attr(attr_data);
				if (typeof data === 'string' && data.length) {
					return JSON.parse(data);
				}
				return null;
			};
	
			var addOption = function($option, group) {
				$option = $($option);
	
				var value = hash_key($option.val());
				if (!value && !settings.allowEmptyOption) return;
	
				// if the option already exists, it's probably been
				// duplicated in another optgroup. in this case, push
				// the current group to the "optgroup" property on the
				// existing option so that it's rendered in both places.
				if (optionsMap.hasOwnProperty(value)) {
					if (group) {
						var arr = optionsMap[value][field_optgroup];
						if (!arr) {
							optionsMap[value][field_optgroup] = group;
						} else if (!$.isArray(arr)) {
							optionsMap[value][field_optgroup] = [arr, group];
						} else {
							arr.push(group);
						}
					}
					return;
				}
	
				var option             = readData($option) || {};
				option[field_label]    = option[field_label] || $option.text();
				option[field_value]    = option[field_value] || value;
				option[field_optgroup] = option[field_optgroup] || group;
	
				optionsMap[value] = option;
				options.push(option);
	
				if ($option.is(':selected')) {
					settings_element.items.push(value);
				}
			};
	
			var addGroup = function($optgroup) {
				var i, n, id, optgroup, $options;
	
				$optgroup = $($optgroup);
				id = $optgroup.attr('label');
	
				if (id) {
					optgroup = readData($optgroup) || {};
					optgroup[field_optgroup_label] = id;
					optgroup[field_optgroup_value] = id;
					settings_element.optgroups.push(optgroup);
				}
	
				$options = $('option', $optgroup);
				for (i = 0, n = $options.length; i < n; i++) {
					addOption($options[i], id);
				}
			};
	
			settings_element.maxItems = $input.attr('multiple') ? null : 1;
	
			$children = $input.children();
			for (i = 0, n = $children.length; i < n; i++) {
				tagName = $children[i].tagName.toLowerCase();
				if (tagName === 'optgroup') {
					addGroup($children[i]);
				} else if (tagName === 'option') {
					addOption($children[i]);
				}
			}
		};
	
		return this.each(function() {
			if (this.selectize) return;
	
			var instance;
			var $input = $(this);
			var tag_name = this.tagName.toLowerCase();
			var placeholder = $input.attr('placeholder') || $input.attr('data-placeholder');
			if (!placeholder && !settings.allowEmptyOption) {
				placeholder = $input.children('option[value=""]').text();
			}
	
			var settings_element = {
				'placeholder' : placeholder,
				'options'     : [],
				'optgroups'   : [],
				'items'       : []
			};
	
			if (tag_name === 'select') {
				init_select($input, settings_element);
			} else {
				init_textbox($input, settings_element);
			}
	
			instance = new Selectize($input, $.extend(true, {}, defaults, settings_element, settings_user));
		});
	};
	
	$.fn.selectize.defaults = Selectize.defaults;
	$.fn.selectize.support = {
		validity: SUPPORTS_VALIDITY_API
	};
	
	
	Selectize.define('drag_drop', function(options) {
		if (!$.fn.sortable) throw new Error('The "drag_drop" plugin requires jQuery UI "sortable".');
		if (this.settings.mode !== 'multi') return;
		var self = this;
	
		self.lock = (function() {
			var original = self.lock;
			return function() {
				var sortable = self.$control.data('sortable');
				if (sortable) sortable.disable();
				return original.apply(self, arguments);
			};
		})();
	
		self.unlock = (function() {
			var original = self.unlock;
			return function() {
				var sortable = self.$control.data('sortable');
				if (sortable) sortable.enable();
				return original.apply(self, arguments);
			};
		})();
	
		self.setup = (function() {
			var original = self.setup;
			return function() {
				original.apply(this, arguments);
	
				var $control = self.$control.sortable({
					items: '[data-value]',
					forcePlaceholderSize: true,
					disabled: self.isLocked,
					start: function(e, ui) {
						ui.placeholder.css('width', ui.helper.css('width'));
						$control.css({overflow: 'visible'});
					},
					stop: function() {
						$control.css({overflow: 'hidden'});
						var active = self.$activeItems ? self.$activeItems.slice() : null;
						var values = [];
						$control.children('[data-value]').each(function() {
							values.push($(this).attr('data-value'));
						});
						self.setValue(values);
						self.setActiveItem(active);
					}
				});
			};
		})();
	
	});
	
	Selectize.define('dropdown_header', function(options) {
		var self = this;
	
		options = $.extend({
			title         : 'Untitled',
			headerClass   : 'selectize-dropdown-header',
			titleRowClass : 'selectize-dropdown-header-title',
			labelClass    : 'selectize-dropdown-header-label',
			closeClass    : 'selectize-dropdown-header-close',
	
			html: function(data) {
				return (
					'<div class="' + data.headerClass + '">' +
						'<div class="' + data.titleRowClass + '">' +
							'<span class="' + data.labelClass + '">' + data.title + '</span>' +
							'<a href="javascript:void(0)" class="' + data.closeClass + '">&times;</a>' +
						'</div>' +
					'</div>'
				);
			}
		}, options);
	
		self.setup = (function() {
			var original = self.setup;
			return function() {
				original.apply(self, arguments);
				self.$dropdown_header = $(options.html(options));
				self.$dropdown.prepend(self.$dropdown_header);
			};
		})();
	
	});
	
	Selectize.define('optgroup_columns', function(options) {
		var self = this;
	
		options = $.extend({
			equalizeWidth  : true,
			equalizeHeight : true
		}, options);
	
		this.getAdjacentOption = function($option, direction) {
			var $options = $option.closest('[data-group]').find('[data-selectable]');
			var index    = $options.index($option) + direction;
	
			return index >= 0 && index < $options.length ? $options.eq(index) : $();
		};
	
		this.onKeyDown = (function() {
			var original = self.onKeyDown;
			return function(e) {
				var index, $option, $options, $optgroup;
	
				if (this.isOpen && (e.keyCode === KEY_LEFT || e.keyCode === KEY_RIGHT)) {
					self.ignoreHover = true;
					$optgroup = this.$activeOption.closest('[data-group]');
					index = $optgroup.find('[data-selectable]').index(this.$activeOption);
	
					if(e.keyCode === KEY_LEFT) {
						$optgroup = $optgroup.prev('[data-group]');
					} else {
						$optgroup = $optgroup.next('[data-group]');
					}
	
					$options = $optgroup.find('[data-selectable]');
					$option  = $options.eq(Math.min($options.length - 1, index));
					if ($option.length) {
						this.setActiveOption($option);
					}
					return;
				}
	
				return original.apply(this, arguments);
			};
		})();
	
		var getScrollbarWidth = function() {
			var div;
			var width = getScrollbarWidth.width;
			var doc = document;
	
			if (typeof width === 'undefined') {
				div = doc.createElement('div');
				div.innerHTML = '<div style="width:50px;height:50px;position:absolute;left:-50px;top:-50px;overflow:auto;"><div style="width:1px;height:100px;"></div></div>';
				div = div.firstChild;
				doc.body.appendChild(div);
				width = getScrollbarWidth.width = div.offsetWidth - div.clientWidth;
				doc.body.removeChild(div);
			}
			return width;
		};
	
		var equalizeSizes = function() {
			var i, n, height_max, width, width_last, width_parent, $optgroups;
	
			$optgroups = $('[data-group]', self.$dropdown_content);
			n = $optgroups.length;
			if (!n || !self.$dropdown_content.width()) return;
	
			if (options.equalizeHeight) {
				height_max = 0;
				for (i = 0; i < n; i++) {
					height_max = Math.max(height_max, $optgroups.eq(i).height());
				}
				$optgroups.css({height: height_max});
			}
	
			if (options.equalizeWidth) {
				width_parent = self.$dropdown_content.innerWidth() - getScrollbarWidth();
				width = Math.round(width_parent / n);
				$optgroups.css({width: width});
				if (n > 1) {
					width_last = width_parent - width * (n - 1);
					$optgroups.eq(n - 1).css({width: width_last});
				}
			}
		};
	
		if (options.equalizeHeight || options.equalizeWidth) {
			hook.after(this, 'positionDropdown', equalizeSizes);
			hook.after(this, 'refreshOptions', equalizeSizes);
		}
	
	
	});
	
	Selectize.define('remove_button', function(options) {
		options = $.extend({
				label     : '&times;',
				title     : 'Remove',
				className : 'remove',
				append    : true
			}, options);
	
			var singleClose = function(thisRef, options) {
	
				options.className = 'remove-single';
	
				var self = thisRef;
				var html = '<a href="javascript:void(0)" class="' + options.className + '" tabindex="-1" title="' + escape_html(options.title) + '">' + options.label + '</a>';
	
				/**
				 * Appends an element as a child (with raw HTML).
				 *
				 * @param {string} html_container
				 * @param {string} html_element
				 * @return {string}
				 */
				var append = function(html_container, html_element) {
					return html_container + html_element;
				};
	
				thisRef.setup = (function() {
					var original = self.setup;
					return function() {
						// override the item rendering method to add the button to each
						if (options.append) {
							var id = $(self.$input.context).attr('id');
							var selectizer = $('#'+id);
	
							var render_item = self.settings.render.item;
							self.settings.render.item = function(data) {
								return append(render_item.apply(thisRef, arguments), html);
							};
						}
	
						original.apply(thisRef, arguments);
	
						// add event listener
						thisRef.$control.on('click', '.' + options.className, function(e) {
							e.preventDefault();
							if (self.isLocked) return;
	
							self.clear();
						});
	
					};
				})();
			};
	
			var multiClose = function(thisRef, options) {
	
				var self = thisRef;
				var html = '<a href="javascript:void(0)" class="' + options.className + '" tabindex="-1" title="' + escape_html(options.title) + '">' + options.label + '</a>';
	
				/**
				 * Appends an element as a child (with raw HTML).
				 *
				 * @param {string} html_container
				 * @param {string} html_element
				 * @return {string}
				 */
				var append = function(html_container, html_element) {
					var pos = html_container.search(/(<\/[^>]+>\s*)$/);
					return html_container.substring(0, pos) + html_element + html_container.substring(pos);
				};
	
				thisRef.setup = (function() {
					var original = self.setup;
					return function() {
						// override the item rendering method to add the button to each
						if (options.append) {
							var render_item = self.settings.render.item;
							self.settings.render.item = function(data) {
								return append(render_item.apply(thisRef, arguments), html);
							};
						}
	
						original.apply(thisRef, arguments);
	
						// add event listener
						thisRef.$control.on('click', '.' + options.className, function(e) {
							e.preventDefault();
							if (self.isLocked) return;
	
							var $item = $(e.currentTarget).parent();
							self.setActiveItem($item);
							if (self.deleteSelection()) {
								self.setCaret(self.items.length);
							}
						});
	
					};
				})();
			};
	
			if (this.settings.mode === 'single') {
				singleClose(this, options);
				return;
			} else {
				multiClose(this, options);
			}
	});
	
	
	Selectize.define('restore_on_backspace', function(options) {
		var self = this;
	
		options.text = options.text || function(option) {
			return option[this.settings.labelField];
		};
	
		this.onKeyDown = (function() {
			var original = self.onKeyDown;
			return function(e) {
				var index, option;
				if (e.keyCode === KEY_BACKSPACE && this.$control_input.val() === '' && !this.$activeItems.length) {
					index = this.caretPos - 1;
					if (index >= 0 && index < this.items.length) {
						option = this.options[this.items[index]];
						if (this.deleteSelection(e)) {
							this.setTextboxValue(options.text.apply(this, [option]));
							this.refreshOptions(true);
						}
						e.preventDefault();
						return;
					}
				}
				return original.apply(this, arguments);
			};
		})();
	});
	

	return Selectize;
}));