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  • jquery.js

  • ¶
    /*!
     * jQuery JavaScript Library v2.0.1
     * http://jquery.com/
     *
     * Includes Sizzle.js
     * http://sizzlejs.com/
     *
     * Copyright 2005, 2013 jQuery Foundation, Inc. and other contributors
     * Released under the MIT license
     * http://jquery.org/license
     *
     * Date: 2013-05-24T16:44Z
     */
    (function( window, undefined ) {
  • ¶

    Can't do this because several apps including ASP.NET trace the stack via arguments.caller.callee and Firefox dies if you try to trace through "use strict" call chains. (#13335) Support: Firefox 18+ "use strict";

    var
  • ¶

    A central reference to the root jQuery(document)

    	rootjQuery,
  • ¶

    The deferred used on DOM ready

    	readyList,
  • ¶

    Support: IE9 For typeof xmlNode.method instead of xmlNode.method !== undefined

    	core_strundefined = typeof undefined,
  • ¶

    Use the correct document accordingly with window argument (sandbox)

    	location = window.location,
    	document = window.document,
    	docElem = document.documentElement,
  • ¶

    Map over jQuery in case of overwrite

    	_jQuery = window.jQuery,
  • ¶

    Map over the $ in case of overwrite

    	_$ = window.$,
  • ¶

    [[Class]] -> type pairs

    	class2type = {},
  • ¶

    List of deleted data cache ids, so we can reuse them

    	core_deletedIds = [],
    
    	core_version = "2.0.1",
  • ¶

    Save a reference to some core methods

    	core_concat = core_deletedIds.concat,
    	core_push = core_deletedIds.push,
    	core_slice = core_deletedIds.slice,
    	core_indexOf = core_deletedIds.indexOf,
    	core_toString = class2type.toString,
    	core_hasOwn = class2type.hasOwnProperty,
    	core_trim = core_version.trim,
  • ¶

    Define a local copy of jQuery

    	jQuery = function( selector, context ) {
  • ¶

    The jQuery object is actually just the init constructor 'enhanced'

    		return new jQuery.fn.init( selector, context, rootjQuery );
    	},
  • ¶

    Used for matching numbers

    	core_pnum = /[+-]?(?:\d*\.|)\d+(?:[eE][+-]?\d+|)/.source,
  • ¶

    Used for splitting on whitespace

    	core_rnotwhite = /\S+/g,
  • ¶

    A simple way to check for HTML strings Prioritize #id over to avoid XSS via location.hash (#9521) Strict HTML recognition (#11290: must start with <)

    	rquickExpr = /^(?:\s*(<[\w\W]+>)[^>]*|#([\w-]*))$/,
  • ¶

    Match a standalone tag

    	rsingleTag = /^<(\w+)\s*\/?>(?:<\/\1>|)$/,
  • ¶

    Matches dashed string for camelizing

    	rmsPrefix = /^-ms-/,
    	rdashAlpha = /-([\da-z])/gi,
  • ¶

    Used by jQuery.camelCase as callback to replace()

    	fcamelCase = function( all, letter ) {
    		return letter.toUpperCase();
    	},
  • ¶

    The ready event handler and self cleanup method

    	completed = function() {
    		document.removeEventListener( "DOMContentLoaded", completed, false );
    		window.removeEventListener( "load", completed, false );
    		jQuery.ready();
    	};
    
    jQuery.fn = jQuery.prototype = {
  • ¶

    The current version of jQuery being used

    	jquery: core_version,
    
    	constructor: jQuery,
    	init: function( selector, context, rootjQuery ) {
    		var match, elem;
  • ¶

    HANDLE: $(""), $(null), $(undefined), $(false)

    		if ( !selector ) {
    			return this;
    		}
  • ¶

    Handle HTML strings

    		if ( typeof selector === "string" ) {
    			if ( selector.charAt(0) === "<" && selector.charAt( 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;
  • ¶

    scripts is true for back-compat

    					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] );
  • ¶

    Check parentNode to catch when Blackberry 4.6 returns nodes that are no longer in the document #6963

    					if ( elem && elem.parentNode ) {
  • ¶

    Inject the element directly into the jQuery object

    						this.length = 1;
    						this[0] = elem;
    					}
    
    					this.context = document;
    					this.selector = selector;
    					return this;
    				}
  • ¶

    HANDLE: $(expr, $(...))

    			} else if ( !context || context.jquery ) {
    				return ( context || rootjQuery ).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.context = this[0] = selector;
    			this.length = 1;
    			return this;
  • ¶

    HANDLE: $(function) Shortcut for document ready

    		} else if ( jQuery.isFunction( selector ) ) {
    			return rootjQuery.ready( selector );
    		}
    
    		if ( selector.selector !== undefined ) {
    			this.selector = selector.selector;
    			this.context = selector.context;
    		}
    
    		return jQuery.makeArray( selector, this );
    	},
  • ¶

    Start with an empty selector

    	selector: "",
  • ¶

    The default length of a jQuery object is 0

    	length: 0,
    
    	toArray: function() {
    		return core_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 num == null ?
  • ¶

    Return a 'clean' array

    			this.toArray() :
  • ¶

    Return just the object

    			( num < 0 ? this[ this.length + num ] : 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;
    		ret.context = this.context;
  • ¶

    Return the newly-formed element set

    		return ret;
    	},
  • ¶

    Execute a callback for every element in the matched set. (You can seed the arguments with an array of args, but this is only used internally.)

    	each: function( callback, args ) {
    		return jQuery.each( this, callback, args );
    	},
    
    	ready: function( fn ) {
  • ¶

    Add the callback

    		jQuery.ready.promise().done( fn );
    
    		return this;
    	},
    
    	slice: function() {
    		return this.pushStack( core_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] ] : [] );
    	},
    
    	map: function( callback ) {
    		return this.pushStack( jQuery.map(this, function( elem, i ) {
    			return callback.call( elem, i, elem );
    		}));
    	},
    
    	end: function() {
    		return this.prevObject || this.constructor(null);
    	},
  • ¶

    For internal use only. Behaves like an Array's method, not like a jQuery method.

    	push: core_push,
    	sort: [].sort,
    	splice: [].splice
    };
  • ¶

    Give the init function the jQuery prototype for later instantiation

    jQuery.fn.init.prototype = jQuery.fn;
    
    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;
    		target = arguments[1] || {};
  • ¶

    skip the boolean and the target

    		i = 2;
    	}
  • ¶

    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 ( length === i ) {
    		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 = jQuery.isArray(copy)) ) ) {
    					if ( copyIsArray ) {
    						copyIsArray = false;
    						clone = src && jQuery.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" + ( core_version + Math.random() ).replace( /\D/g, "" ),
    
    	noConflict: function( deep ) {
    		if ( window.$ === jQuery ) {
    			window.$ = _$;
    		}
    
    		if ( deep && window.jQuery === jQuery ) {
    			window.jQuery = _jQuery;
    		}
    
    		return jQuery;
    	},
  • ¶

    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,
  • ¶

    Hold (or release) the ready event

    	holdReady: function( hold ) {
    		if ( hold ) {
    			jQuery.readyWait++;
    		} else {
    			jQuery.ready( true );
    		}
    	},
  • ¶

    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 ] );
  • ¶

    Trigger any bound ready events

    		if ( jQuery.fn.trigger ) {
    			jQuery( document ).trigger("ready").off("ready");
    		}
    	},
  • ¶

    See test/unit/core.js for details concerning isFunction. Since version 1.3, DOM methods and functions like alert aren't supported. They return false on IE (#2968).

    	isFunction: function( obj ) {
    		return jQuery.type(obj) === "function";
    	},
    
    	isArray: Array.isArray,
    
    	isWindow: function( obj ) {
    		return obj != null && obj === obj.window;
    	},
    
    	isNumeric: function( obj ) {
    		return !isNaN( parseFloat(obj) ) && isFinite( obj );
    	},
    
    	type: function( obj ) {
    		if ( obj == null ) {
    			return String( obj );
    		}
  • ¶

    Support: Safari <= 5.1 (functionish RegExp)

    		return typeof obj === "object" || typeof obj === "function" ?
    			class2type[ core_toString.call(obj) ] || "object" :
    			typeof obj;
    	},
    
    	isPlainObject: function( obj ) {
  • ¶

    Not plain objects: - Any object or value whose internal [[Class]] property is not "[object Object]" - DOM nodes - window

    		if ( jQuery.type( obj ) !== "object" || obj.nodeType || jQuery.isWindow( obj ) ) {
    			return false;
    		}
  • ¶

    Support: Firefox <20 The try/catch suppresses exceptions thrown when attempting to access the "constructor" property of certain host objects, ie. |window.location| https://bugzilla.mozilla.org/show_bug.cgi?id=814622

    		try {
    			if ( obj.constructor &&
    					!core_hasOwn.call( obj.constructor.prototype, "isPrototypeOf" ) ) {
    				return false;
    			}
    		} catch ( e ) {
    			return false;
    		}
  • ¶

    If the function hasn't returned already, we're confident that |obj| is a plain object, created by {} or constructed with new Object

    		return true;
    	},
    
    	isEmptyObject: function( obj ) {
    		var name;
    		for ( name in obj ) {
    			return false;
    		}
    		return true;
    	},
    
    	error: function( msg ) {
    		throw new Error( msg );
    	},
  • ¶

    data: 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

    	parseHTML: function( data, context, keepScripts ) {
    		if ( !data || typeof data !== "string" ) {
    			return null;
    		}
    		if ( typeof context === "boolean" ) {
    			keepScripts = context;
    			context = false;
    		}
    		context = context || document;
    
    		var parsed = rsingleTag.exec( data ),
    			scripts = !keepScripts && [];
  • ¶

    Single tag

    		if ( parsed ) {
    			return [ context.createElement( parsed[1] ) ];
    		}
    
    		parsed = jQuery.buildFragment( [ data ], context, scripts );
    
    		if ( scripts ) {
    			jQuery( scripts ).remove();
    		}
    
    		return jQuery.merge( [], parsed.childNodes );
    	},
    
    	parseJSON: JSON.parse,
  • ¶

    Cross-browser xml parsing

    	parseXML: function( data ) {
    		var xml, tmp;
    		if ( !data || typeof data !== "string" ) {
    			return null;
    		}
  • ¶

    Support: IE9

    		try {
    			tmp = new DOMParser();
    			xml = tmp.parseFromString( data , "text/xml" );
    		} catch ( e ) {
    			xml = undefined;
    		}
    
    		if ( !xml || xml.getElementsByTagName( "parsererror" ).length ) {
    			jQuery.error( "Invalid XML: " + data );
    		}
    		return xml;
    	},
    
    	noop: function() {},
  • ¶

    Evaluates a script in a global context

    	globalEval: function( code ) {
    		var script,
    				indirect = eval;
    
    		code = jQuery.trim( code );
    
    		if ( code ) {
  • ¶

    If the code includes a valid, prologue position strict mode pragma, execute code by injecting a script tag into the document.

    			if ( code.indexOf("use strict") === 1 ) {
    				script = document.createElement("script");
    				script.text = code;
    				document.head.appendChild( script ).parentNode.removeChild( script );
    			} else {
  • ¶

    Otherwise, avoid the DOM node creation, insertion and removal by using an indirect global eval

    				indirect( code );
    			}
    		}
    	},
  • ¶

    Convert dashed to camelCase; used by the css and data modules Microsoft forgot to hump their vendor prefix (#9572)

    	camelCase: function( string ) {
    		return string.replace( rmsPrefix, "ms-" ).replace( rdashAlpha, fcamelCase );
    	},
    
    	nodeName: function( elem, name ) {
    		return elem.nodeName && elem.nodeName.toLowerCase() === name.toLowerCase();
    	},
  • ¶

    args is for internal usage only

    	each: function( obj, callback, args ) {
    		var value,
    			i = 0,
    			length = obj.length,
    			isArray = isArraylike( obj );
    
    		if ( args ) {
    			if ( isArray ) {
    				for ( ; i < length; i++ ) {
    					value = callback.apply( obj[ i ], args );
    
    					if ( value === false ) {
    						break;
    					}
    				}
    			} else {
    				for ( i in obj ) {
    					value = callback.apply( obj[ i ], args );
    
    					if ( value === false ) {
    						break;
    					}
    				}
    			}
  • ¶

    A special, fast, case for the most common use of each

    		} else {
    			if ( isArray ) {
    				for ( ; i < length; i++ ) {
    					value = callback.call( obj[ i ], i, obj[ i ] );
    
    					if ( value === false ) {
    						break;
    					}
    				}
    			} else {
    				for ( i in obj ) {
    					value = callback.call( obj[ i ], i, obj[ i ] );
    
    					if ( value === false ) {
    						break;
    					}
    				}
    			}
    		}
    
    		return obj;
    	},
    
    	trim: function( text ) {
    		return text == null ? "" : core_trim.call( text );
    	},
  • ¶

    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 {
    				core_push.call( ret, arr );
    			}
    		}
    
    		return ret;
    	},
    
    	inArray: function( elem, arr, i ) {
    		return arr == null ? -1 : core_indexOf.call( arr, elem, i );
    	},
    
    	merge: function( first, second ) {
    		var l = second.length,
    			i = first.length,
    			j = 0;
    
    		if ( typeof l === "number" ) {
    			for ( ; j < l; j++ ) {
    				first[ i++ ] = second[ j ];
    			}
    		} else {
    			while ( second[j] !== undefined ) {
    				first[ i++ ] = second[ j++ ];
    			}
    		}
    
    		first.length = i;
    
    		return first;
    	},
    
    	grep: function( elems, callback, inv ) {
    		var retVal,
    			ret = [],
    			i = 0,
    			length = elems.length;
    		inv = !!inv;
  • ¶

    Go through the array, only saving the items that pass the validator function

    		for ( ; i < length; i++ ) {
    			retVal = !!callback( elems[ i ], i );
    			if ( inv !== retVal ) {
    				ret.push( elems[ i ] );
    			}
    		}
    
    		return ret;
    	},
  • ¶

    arg is for internal usage only

    	map: function( elems, callback, arg ) {
    		var value,
    			i = 0,
    			length = elems.length,
    			isArray = isArraylike( elems ),
    			ret = [];
  • ¶

    Go through the array, translating each of the items to their

    		if ( isArray ) {
    			for ( ; i < length; i++ ) {
    				value = callback( elems[ i ], i, arg );
    
    				if ( value != null ) {
    					ret[ ret.length ] = value;
    				}
    			}
  • ¶

    Go through every key on the object,

    		} else {
    			for ( i in elems ) {
    				value = callback( elems[ i ], i, arg );
    
    				if ( value != null ) {
    					ret[ ret.length ] = value;
    				}
    			}
    		}
  • ¶

    Flatten any nested arrays

    		return core_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 = core_slice.call( arguments, 2 );
    		proxy = function() {
    			return fn.apply( context || this, args.concat( core_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;
    	},
  • ¶

    Multifunctional method to get and set values of a collection The value/s can optionally be executed if it's a function

    	access: function( elems, fn, key, value, chainable, emptyGet, raw ) {
    		var i = 0,
    			length = elems.length,
    			bulk = key == null;
  • ¶

    Sets many values

    		if ( jQuery.type( key ) === "object" ) {
    			chainable = true;
    			for ( i in key ) {
    				jQuery.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 < length; i++ ) {
    					fn( elems[i], key, raw ? value : value.call( elems[i], i, fn( elems[i], key ) ) );
    				}
    			}
    		}
    
    		return chainable ?
    			elems :
  • ¶

    Gets

    			bulk ?
    				fn.call( elems ) :
    				length ? fn( elems[0], key ) : emptyGet;
    	},
    
    	now: Date.now,
  • ¶

    A method for quickly swapping in/out CSS properties to get correct calculations. Note: this method belongs to the css module but it's needed here for the support module. If support gets modularized, this method should be moved back to the css module.

    	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;
    	}
    });
    
    jQuery.ready.promise = function( obj ) {
    	if ( !readyList ) {
    
    		readyList = jQuery.Deferred();
  • ¶

    Catch cases where $(document).ready() is called after the browser event has already occurred. we once tried to use readyState "interactive" here, but it caused issues like the one discovered by ChrisS here: http://bugs.jquery.com/ticket/12282#comment:15

    		if ( document.readyState === "complete" ) {
  • ¶

    Handle it asynchronously to allow scripts the opportunity to delay ready

    			setTimeout( jQuery.ready );
    
    		} else {
  • ¶

    Use the handy event callback

    			document.addEventListener( "DOMContentLoaded", completed, false );
  • ¶

    A fallback to window.onload, that will always work

    			window.addEventListener( "load", completed, false );
    		}
    	}
    	return readyList.promise( obj );
    };
  • ¶

    Populate the class2type map

    jQuery.each("Boolean Number String Function Array Date RegExp Object Error".split(" "), function(i, name) {
    	class2type[ "[object " + name + "]" ] = name.toLowerCase();
    });
    
    function isArraylike( obj ) {
    	var length = obj.length,
    		type = jQuery.type( obj );
    
    	if ( jQuery.isWindow( obj ) ) {
    		return false;
    	}
    
    	if ( obj.nodeType === 1 && length ) {
    		return true;
    	}
    
    	return type === "array" || type !== "function" &&
    		( length === 0 ||
    		typeof length === "number" && length > 0 && ( length - 1 ) in obj );
    }
  • ¶

    All jQuery objects should point back to these

    rootjQuery = jQuery(document);
    /*!
     * Sizzle CSS Selector Engine v1.9.4-pre
     * http://sizzlejs.com/
     *
     * Copyright 2013 jQuery Foundation, Inc. and other contributors
     * Released under the MIT license
     * http://jquery.org/license
     *
     * Date: 2013-05-15
     */
    (function( window, undefined ) {
    
    var i,
    	support,
    	cachedruns,
    	Expr,
    	getText,
    	isXML,
    	compile,
    	outermostContext,
    	sortInput,
  • ¶

    Local document vars

    	setDocument,
    	document,
    	docElem,
    	documentIsHTML,
    	rbuggyQSA,
    	rbuggyMatches,
    	matches,
    	contains,
  • ¶

    Instance-specific data

    	expando = "sizzle" + -(new Date()),
    	preferredDoc = window.document,
    	dirruns = 0,
    	done = 0,
    	classCache = createCache(),
    	tokenCache = createCache(),
    	compilerCache = createCache(),
    	hasDuplicate = false,
    	sortOrder = function() { return 0; },
  • ¶

    General-purpose constants

    	strundefined = typeof undefined,
    	MAX_NEGATIVE = 1 << 31,
    
    
  • ¶

    Instance methods

    	hasOwn = ({}).hasOwnProperty,
    	arr = [],
    	pop = arr.pop,
    	push_native = arr.push,
    	push = arr.push,
    	slice = arr.slice,
  • ¶

    Use a stripped-down indexOf if we can't use a native one

    	indexOf = arr.indexOf || function( elem ) {
    		var i = 0,
    			len = this.length;
    		for ( ; i < len; i++ ) {
    			if ( this[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

    Whitespace characters http://www.w3.org/TR/css3-selectors/#whitespace

    	whitespace = "[\\x20\\t\\r\\n\\f]",
  • ¶

    http://www.w3.org/TR/css3-syntax/#characters

    	characterEncoding = "(?:\\\\.|[\\w-]|[^\\x00-\\xa0])+",
  • ¶

    Loosely modeled on CSS identifier characters An unquoted value should be a CSS identifier http://www.w3.org/TR/css3-selectors/#attribute-selectors Proper syntax: http://www.w3.org/TR/CSS21/syndata.html#value-def-identifier

    	identifier = characterEncoding.replace( "w", "w#" ),
  • ¶

    Acceptable operators http://www.w3.org/TR/selectors/#attribute-selectors

    	attributes = "\\[" + whitespace + "*(" + characterEncoding + ")" + whitespace +
    		"*(?:([*^$|!~]?=)" + whitespace + "*(?:(['\"])((?:\\\\.|[^\\\\])*?)\\3|(" + identifier + ")|)|)" + whitespace + "*\\]",
  • ¶

    Prefer arguments quoted, then not containing pseudos/brackets, then attribute selectors/non-parenthetical expressions, then anything else These preferences are here to reduce the number of selectors needing tokenize in the PSEUDO preFilter

    	pseudos = ":(" + characterEncoding + ")(?:\\(((['\"])((?:\\\\.|[^\\\\])*?)\\3|((?:\\\\.|[^\\\\()[\\]]|" + attributes.replace( 3, 8 ) + ")*)|.*)\\)|)",
  • ¶

    Leading and non-escaped trailing whitespace, capturing some non-whitespace characters preceding the latter

    	rtrim = new RegExp( "^" + whitespace + "+|((?:^|[^\\\\])(?:\\\\.)*)" + whitespace + "+$", "g" ),
    
    	rcomma = new RegExp( "^" + whitespace + "*," + whitespace + "*" ),
    	rcombinators = new RegExp( "^" + whitespace + "*([>+~]|" + whitespace + ")" + whitespace + "*" ),
    
    	rsibling = new RegExp( whitespace + "*[+~]" ),
    	rattributeQuotes = new RegExp( "=" + whitespace + "*([^\\]'\"]*)" + whitespace + "*\\]", "g" ),
    
    	rpseudo = new RegExp( pseudos ),
    	ridentifier = new RegExp( "^" + identifier + "$" ),
    
    	matchExpr = {
    		"ID": new RegExp( "^#(" + characterEncoding + ")" ),
    		"CLASS": new RegExp( "^\\.(" + characterEncoding + ")" ),
    		"TAG": new RegExp( "^(" + characterEncoding.replace( "w", "w*" ) + ")" ),
    		"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" )
    	},
    
    	rnative = /^[^{]+\{\s*\[native \w/,
  • ¶

    Easily-parseable/retrievable ID or TAG or CLASS selectors

    	rquickExpr = /^(?:#([\w-]+)|(\w+)|\.([\w-]+))$/,
    
    	rinputs = /^(?:input|select|textarea|button)$/i,
    	rheader = /^h\d$/i,
    
    	rescape = /'|\\/g,
  • ¶

    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 Workaround erroneous numeric interpretation of +"0x"

    		return high !== high || escapedWhitespace ?
    			escaped :
  • ¶

    BMP codepoint

    			high < 0 ?
    				String.fromCharCode( high + 0x10000 ) :
  • ¶

    Supplemental Plane codepoint (surrogate pair)

    				String.fromCharCode( high >> 10 | 0xD800, high & 0x3FF | 0xDC00 );
    	};
  • ¶

    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 match, elem, m, nodeType,
  • ¶

    QSA vars

    		i, groups, old, nid, newContext, newSelector;
    
    	if ( ( context ? context.ownerDocument || context : preferredDoc ) !== document ) {
    		setDocument( context );
    	}
    
    	context = context || document;
    	results = results || [];
    
    	if ( !selector || typeof selector !== "string" ) {
    		return results;
    	}
    
    	if ( (nodeType = context.nodeType) !== 1 && nodeType !== 9 ) {
    		return [];
    	}
    
    	if ( documentIsHTML && !seed ) {
  • ¶

    Shortcuts

    		if ( (match = rquickExpr.exec( selector )) ) {
  • ¶

    Speed-up: Sizzle("#ID")

    			if ( (m = match[1]) ) {
    				if ( nodeType === 9 ) {
    					elem = context.getElementById( m );
  • ¶

    Check parentNode to catch when Blackberry 4.6 returns nodes that are no longer in the document #6963

    					if ( elem && elem.parentNode ) {
  • ¶

    Handle the case where IE, Opera, and Webkit return items by name instead of ID

    						if ( elem.id === m ) {
    							results.push( elem );
    							return results;
    						}
    					} else {
    						return results;
    					}
    				} else {
  • ¶

    Context is not a document

    					if ( context.ownerDocument && (elem = context.ownerDocument.getElementById( m )) &&
    						contains( context, elem ) && elem.id === m ) {
    						results.push( elem );
    						return results;
    					}
    				}
  • ¶

    Speed-up: Sizzle("TAG")

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

    Speed-up: Sizzle(".CLASS")

    			} else if ( (m = match[3]) && support.getElementsByClassName && context.getElementsByClassName ) {
    				push.apply( results, context.getElementsByClassName( m ) );
    				return results;
    			}
    		}
  • ¶

    QSA path

    		if ( support.qsa && (!rbuggyQSA || !rbuggyQSA.test( selector )) ) {
    			nid = old = expando;
    			newContext = context;
    			newSelector = nodeType === 9 && selector;
  • ¶

    qSA works strangely on Element-rooted queries We can work around this by specifying an extra ID on the root and working up from there (Thanks to Andrew Dupont for the technique) IE 8 doesn't work on object elements

    			if ( nodeType === 1 && context.nodeName.toLowerCase() !== "object" ) {
    				groups = tokenize( selector );
    
    				if ( (old = context.getAttribute("id")) ) {
    					nid = old.replace( rescape, "\\$&" );
    				} else {
    					context.setAttribute( "id", nid );
    				}
    				nid = "[id='" + nid + "'] ";
    
    				i = groups.length;
    				while ( i-- ) {
    					groups[i] = nid + toSelector( groups[i] );
    				}
    				newContext = rsibling.test( selector ) && context.parentNode || context;
    				newSelector = groups.join(",");
    			}
    
    			if ( newSelector ) {
    				try {
    					push.apply( results,
    						newContext.querySelectorAll( newSelector )
    					);
    					return results;
    				} catch(qsaError) {
    				} finally {
    					if ( !old ) {
    						context.removeAttribute("id");
    					}
    				}
    			}
    		}
    	}
  • ¶

    All others

    	return select( selector.replace( rtrim, "$1" ), context, results, seed );
    }
    
    /**
     * For feature detection
     * @param {Function} fn The function to test for native support
     */
    function isNative( fn ) {
    	return rnative.test( fn + "" );
    }
    
    /**
     * 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 div and expects a boolean result
     */
    function assert( fn ) {
    	var div = document.createElement("div");
    
    	try {
    		return !!fn( div );
    	} catch (e) {
    		return false;
    	} finally {
  • ¶

    Remove from its parent by default

    		if ( div.parentNode ) {
    			div.parentNode.removeChild( div );
    		}
  • ¶

    release memory in IE

    		div = 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 if the test fails
     * @param {Boolean} test The result of a test. If true, null will be set as the handler in leiu of the specified handler
     */
    function addHandle( attrs, handler, test ) {
    	attrs = attrs.split("|");
    	var current,
    		i = attrs.length,
    		setHandle = test ? null : handler;
    
    	while ( i-- ) {
  • ¶

    Don't override a user's handler

    		if ( !(current = Expr.attrHandle[ attrs[i] ]) || current === handler ) {
    			Expr.attrHandle[ attrs[i] ] = setHandle;
    		}
    	}
    }
    
    /**
     * Fetches boolean attributes by node
     * @param {Element} elem
     * @param {String} name
     */
    function boolHandler( elem, name ) {
  • ¶

    XML does not need to be checked as this will not be assigned for XML documents

    	var val = elem.getAttributeNode( name );
    	return val && val.specified ?
    		val.value :
    		elem[ name ] === true ? name.toLowerCase() : null;
    }
    
    /**
     * Fetches attributes without interpolation
     * http://msdn.microsoft.com/en-us/library/ms536429%28VS.85%29.aspx
     * @param {Element} elem
     * @param {String} name
     */
    function interpolationHandler( elem, name ) {
  • ¶

    XML does not need to be checked as this will not be assigned for XML documents

    	return elem.getAttribute( name, name.toLowerCase() === "type" ? 1 : 2 );
    }
    
    /**
     * Uses defaultValue to retrieve value in IE6/7
     * @param {Element} elem
     * @param {String} name
     */
    function valueHandler( elem ) {
  • ¶

    Ignore the value property on inputs by using defaultValue Fallback to Sizzle.attr by returning undefined where appropriate XML does not need to be checked as this will not be assigned for XML documents

    	if ( elem.nodeName.toLowerCase() === "input" ) {
    		return elem.defaultValue;
    	}
    }
    
    /**
     * Checks document order of two siblings
     * @param {Element} a
     * @param {Element} b
     * @returns Returns -1 if a precedes b, 1 if a follows b
     */
    function siblingCheck( a, b ) {
    	var cur = b && a,
    		diff = cur && a.nodeType === 1 && b.nodeType === 1 &&
    			( ~b.sourceIndex || MAX_NEGATIVE ) -
    			( ~a.sourceIndex || MAX_NEGATIVE );
  • ¶

    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 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]);
    				}
    			}
    		});
    	});
    }
    
    /**
     * Detect xml
     * @param {Element|Object} elem An element or a document
     */
    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;
    };
  • ¶

    Expose support vars for convenience

    support = Sizzle.support = {};
    
    /**
     * 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 doc = node ? node.ownerDocument || node : preferredDoc;
  • ¶

    If no document and documentElement is available, return

    	if ( doc === document || doc.nodeType !== 9 || !doc.documentElement ) {
    		return document;
    	}
  • ¶

    Set our document

    	document = doc;
    	docElem = doc.documentElement;
  • ¶

    Support tests

    	documentIsHTML = !isXML( doc );
    
    	/* Attributes
    	---------------------------------------------------------------------- */
  • ¶

    Support: IE<8 Verify that getAttribute really returns attributes and not properties (excepting IE8 booleans)

    	support.attributes = assert(function( div ) {
  • ¶

    Support: IE<8 Prevent attribute/property "interpolation"

    		div.innerHTML = "<a href='#'></a>";
    		addHandle( "type|href|height|width", interpolationHandler, div.firstChild.getAttribute("href") === "#" );
  • ¶

    Support: IE<9 Use getAttributeNode to fetch booleans when getAttribute lies

    		addHandle( booleans, boolHandler, div.getAttribute("disabled") == null );
    
    		div.className = "i";
    		return !div.getAttribute("className");
    	});
  • ¶

    Support: IE<9 Retrieving value should defer to defaultValue

    	support.input = assert(function( div ) {
    		div.innerHTML = "<input>";
    		div.firstChild.setAttribute( "value", "" );
    		return div.firstChild.getAttribute( "value" ) === "";
    	});
  • ¶

    IE6/7 still return empty string for value, but are actually retrieving the property

    	addHandle( "value", valueHandler, support.attributes && support.input );
    
    	/* getElement(s)By*
    	---------------------------------------------------------------------- */
  • ¶

    Check if getElementsByTagName("*") returns only elements

    	support.getElementsByTagName = assert(function( div ) {
    		div.appendChild( doc.createComment("") );
    		return !div.getElementsByTagName("*").length;
    	});
  • ¶

    Check if getElementsByClassName can be trusted

    	support.getElementsByClassName = assert(function( div ) {
    		div.innerHTML = "<div class='a'></div><div class='a i'></div>";
  • ¶

    Support: Safari<4 Catch class over-caching

    		div.firstChild.className = "i";
  • ¶

    Support: Opera<10 Catch gEBCN failure to find non-leading classes

    		return div.getElementsByClassName("i").length === 2;
    	});
  • ¶

    Support: IE<10 Check if getElementById returns elements by name The broken getElementById methods don't pick up programatically-set names, so use a roundabout getElementsByName test

    	support.getById = assert(function( div ) {
    		docElem.appendChild( div ).id = expando;
    		return !doc.getElementsByName || !doc.getElementsByName( expando ).length;
    	});
  • ¶

    ID find and filter

    	if ( support.getById ) {
    		Expr.find["ID"] = function( id, context ) {
    			if ( typeof context.getElementById !== strundefined && documentIsHTML ) {
    				var m = context.getElementById( id );
  • ¶

    Check parentNode to catch when Blackberry 4.6 returns nodes that are no longer in the document #6963

    				return m && m.parentNode ? [m] : [];
    			}
    		};
    		Expr.filter["ID"] = function( id ) {
    			var attrId = id.replace( runescape, funescape );
    			return function( elem ) {
    				return elem.getAttribute("id") === attrId;
    			};
    		};
    	} else {
  • ¶

    Support: IE6/7 getElementById is not reliable as a find shortcut

    		delete Expr.find["ID"];
    
    		Expr.filter["ID"] =  function( id ) {
    			var attrId = id.replace( runescape, funescape );
    			return function( elem ) {
    				var node = typeof elem.getAttributeNode !== strundefined && elem.getAttributeNode("id");
    				return node && node.value === attrId;
    			};
    		};
    	}
  • ¶

    Tag

    	Expr.find["TAG"] = support.getElementsByTagName ?
    		function( tag, context ) {
    			if ( typeof context.getElementsByTagName !== strundefined ) {
    				return context.getElementsByTagName( tag );
    			}
    		} :
    		function( tag, context ) {
    			var elem,
    				tmp = [],
    				i = 0,
    				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 !== strundefined && 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 http://bugs.jquery.com/ticket/13378

    	rbuggyQSA = [];
    
    	if ( (support.qsa = isNative(doc.querySelectorAll)) ) {
  • ¶

    Build QSA regex Regex strategy adopted from Diego Perini

    		assert(function( div ) {
  • ¶

    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 http://bugs.jquery.com/ticket/12359

    			div.innerHTML = "<select><option selected=''></option></select>";
  • ¶

    Support: IE8 Boolean attributes and "value" are not treated correctly

    			if ( !div.querySelectorAll("[selected]").length ) {
    				rbuggyQSA.push( "\\[" + whitespace + "*(?:value|" + booleans + ")" );
    			}
  • ¶

    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 ( !div.querySelectorAll(":checked").length ) {
    				rbuggyQSA.push(":checked");
    			}
    		});
    
    		assert(function( div ) {
  • ¶

    Support: Opera 10-12/IE8 ^= $= *= and empty values Should not select anything Support: Windows 8 Native Apps The type attribute is restricted during .innerHTML assignment

    			var input = doc.createElement("input");
    			input.setAttribute( "type", "hidden" );
    			div.appendChild( input ).setAttribute( "t", "" );
    
    			if ( div.querySelectorAll("[t^='']").length ) {
    				rbuggyQSA.push( "[*^$]=" + 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 ( !div.querySelectorAll(":enabled").length ) {
    				rbuggyQSA.push( ":enabled", ":disabled" );
    			}
  • ¶

    Opera 10-11 does not throw on post-comma invalid pseudos

    			div.querySelectorAll("*,:x");
    			rbuggyQSA.push(",.*:");
    		});
    	}
    
    	if ( (support.matchesSelector = isNative( (matches = docElem.webkitMatchesSelector ||
    		docElem.mozMatchesSelector ||
    		docElem.oMatchesSelector ||
    		docElem.msMatchesSelector) )) ) {
    
    		assert(function( div ) {
  • ¶

    Check to see if it's possible to do matchesSelector on a disconnected node (IE 9)

    			support.disconnectedMatch = matches.call( div, "div" );
  • ¶

    This should fail with an exception Gecko does not error, returns false instead

    			matches.call( div, "[s!='']:x" );
    			rbuggyMatches.push( "!=", pseudos );
    		});
    	}
    
    	rbuggyQSA = rbuggyQSA.length && new RegExp( rbuggyQSA.join("|") );
    	rbuggyMatches = rbuggyMatches.length && new RegExp( rbuggyMatches.join("|") );
    
    	/* Contains
    	---------------------------------------------------------------------- */
  • ¶

    Element contains another Purposefully does not implement inclusive descendent As in, an element does not contain itself

    	contains = isNative(docElem.contains) || docElem.compareDocumentPosition ?
    		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
    	---------------------------------------------------------------------- */
  • ¶

    Support: Webkit<537.32 - Safari 6.0.3/Chrome 25 (fixed in Chrome 27) Detached nodes confoundingly follow each other

    	support.sortDetached = assert(function( div1 ) {
  • ¶

    Should return 1, but returns 4 (following)

    		return div1.compareDocumentPosition( doc.createElement("div") ) & 1;
    	});
  • ¶

    Document order sorting

    	sortOrder = docElem.compareDocumentPosition ?
    	function( a, b ) {
  • ¶

    Flag for duplicate removal

    		if ( a === b ) {
    			hasDuplicate = true;
    			return 0;
    		}
    
    		var compare = b.compareDocumentPosition && a.compareDocumentPosition && a.compareDocumentPosition( b );
    
    		if ( compare ) {
  • ¶

    Disconnected nodes

    			if ( compare & 1 ||
    				(!support.sortDetached && b.compareDocumentPosition( a ) === compare) ) {
  • ¶

    Choose the first element that is related to our preferred document

    				if ( a === doc || contains(preferredDoc, a) ) {
    					return -1;
    				}
    				if ( b === doc || contains(preferredDoc, b) ) {
    					return 1;
    				}
  • ¶

    Maintain original order

    				return sortInput ?
    					( indexOf.call( sortInput, a ) - indexOf.call( sortInput, b ) ) :
    					0;
    			}
    
    			return compare & 4 ? -1 : 1;
    		}
  • ¶

    Not directly comparable, sort on existence of method

    		return a.compareDocumentPosition ? -1 : 1;
    	} :
    	function( a, b ) {
    		var cur,
    			i = 0,
    			aup = a.parentNode,
    			bup = b.parentNode,
    			ap = [ a ],
    			bp = [ b ];
  • ¶

    Exit early if the nodes are identical

    		if ( a === b ) {
    			hasDuplicate = true;
    			return 0;
  • ¶

    Parentless nodes are either documents or disconnected

    		} else if ( !aup || !bup ) {
    			return a === doc ? -1 :
    				b === doc ? 1 :
    				aup ? -1 :
    				bup ? 1 :
    				sortInput ?
    				( indexOf.call( sortInput, a ) - indexOf.call( 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 doc;
    };
    
    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 &&
    		( !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 ?
    		support.attributes || !documentIsHTML ?
    			elem.getAttribute( name ) :
    			(val = elem.getAttributeNode(name)) && val.specified ?
    				val.value :
    				null :
    		val;
    };
    
    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 );
    		}
    	}
    
    	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

    		for ( ; (node = elem[i]); 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 (see #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[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[5] && match[2];
    
    			if ( matchExpr["CHILD"].test( match[0] ) ) {
    				return null;
    			}
  • ¶

    Accept quoted arguments as-is

    			if ( match[3] && match[4] !== undefined ) {
    				match[2] = match[4];
  • ¶

    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 !== strundefined && 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 + " " ).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, outerCache, node, diff, nodeIndex, start,
    						dir = simple !== forward ? "nextSibling" : "previousSibling",
    						parent = elem.parentNode,
    						name = ofType && elem.nodeName.toLowerCase(),
    						useCache = !xml && !ofType;
    
    					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

    							outerCache = parent[ expando ] || (parent[ expando ] = {});
    							cache = outerCache[ type ] || [];
    							nodeIndex = cache[0] === dirruns && cache[1];
    							diff = cache[0] === dirruns && 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 ) {
    									outerCache[ type ] = [ dirruns, nodeIndex, diff ];
    									break;
    								}
    							}
  • ¶

    Use previously-cached element index if available

    						} else if ( useCache && (cache = (elem[ expando ] || (elem[ expando ] = {}))[ type ]) && cache[0] === dirruns ) {
    							diff = cache[1];
  • ¶

    xml :nth-child(...) or :nth-last-child(...) or :nth(-last)?-of-type(...)

    						} else {
  • ¶

    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 ) {
    										(node[ expando ] || (node[ expando ] = {}))[ 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.call( 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 );
    					return !results.pop();
    				};
    		}),
    
    		"has": markFunction(function( selector ) {
    			return function( elem ) {
    				return Sizzle( selector, elem ).length > 0;
    			};
    		}),
    
    		"contains": markFunction(function( text ) {
    			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": function( elem ) {
    			return elem.disabled === false;
    		},
    
    		"disabled": function( elem ) {
    			return elem.disabled === 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 only affected by element nodes and content nodes(including text(3), cdata(4)), not comment, processing instructions, or others Thanks to Diego Perini for the nodeName shortcut Greater than "@" means alpha characters (specifically not starting with "#" or "?")

    			for ( elem = elem.firstChild; elem; elem = elem.nextSibling ) {
    				if ( elem.nodeName > "@" || elem.nodeType === 3 || elem.nodeType === 4 ) {
    					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;
  • ¶

    IE6 and 7 will map elem.type to 'text' for new HTML5 types (search, etc) use getAttribute instead to test this case

    			return elem.nodeName.toLowerCase() === "input" &&
    				elem.type === "text" &&
    				( (attr = elem.getAttribute("type")) == null || attr.toLowerCase() === elem.type );
    		},
  • ¶

    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;
    		})
    	}
    };
  • ¶

    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 );
    }
    
    function tokenize( 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,
    		checkNonElements = base && dir === "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 );
    				}
    			}
    		} :
  • ¶

    Check against all ancestor/preceding elements

    		function( elem, context, xml ) {
    			var data, cache, outerCache,
    				dirkey = dirruns + " " + doneName;
  • ¶

    We can't set arbitrary data on XML nodes, so they don't benefit from dir 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 ] = {});
    						if ( (cache = outerCache[ dir ]) && cache[0] === dirkey ) {
    							if ( (data = cache[1]) === true || data === cachedruns ) {
    								return data === true;
    							}
    						} else {
    							cache = outerCache[ dir ] = [ dirkey ];
    							cache[1] = matcher( elem, context, xml ) || cachedruns;
    							if ( cache[1] === true ) {
    								return true;
    							}
    						}
    					}
    				}
    			}
    		};
    }
    
    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 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.call( 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.call( checkContext, elem ) > -1;
    		}, implicitRelative, true ),
    		matchers = [ function( elem, context, xml ) {
    			return ( !leadingRelative && ( xml || context !== outermostContext ) ) || (
    				(checkContext = context).nodeType ?
    					matchContext( elem, context, xml ) :
    					matchAnyContext( elem, context, xml ) );
    		} ];
    
    	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 ) {
  • ¶

    A counter to specify which element is currently being matched

    	var matcherCachedRuns = 0,
    		bySet = setMatchers.length > 0,
    		byElement = elementMatchers.length > 0,
    		superMatcher = function( seed, context, xml, results, expandContext ) {
    			var elem, j, matcher,
    				setMatched = [],
    				matchedCount = 0,
    				i = "0",
    				unmatched = seed && [],
    				outermost = expandContext != null,
    				contextBackup = outermostContext,
  • ¶

    We must always have either seed elements or context

    				elems = seed || byElement && Expr.find["TAG"]( "*", expandContext && context.parentNode || context ),
  • ¶

    Use integer dirruns iff this is the outermost matcher

    				dirrunsUnique = (dirruns += contextBackup == null ? 1 : Math.random() || 0.1);
    
    			if ( outermost ) {
    				outermostContext = context !== document && context;
    				cachedruns = matcherCachedRuns;
    			}
  • ¶

    Add elements passing elementMatchers directly to results Keep i a string if there are no elements so matchedCount will be "00" below

    			for ( ; (elem = elems[i]) != null; i++ ) {
    				if ( byElement && elem ) {
    					j = 0;
    					while ( (matcher = elementMatchers[j++]) ) {
    						if ( matcher( elem, context, xml ) ) {
    							results.push( elem );
    							break;
    						}
    					}
    					if ( outermost ) {
    						dirruns = dirrunsUnique;
    						cachedruns = ++matcherCachedRuns;
    					}
    				}
  • ¶

    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 );
    					}
    				}
    			}
  • ¶

    Apply set filters to unmatched elements

    			matchedCount += i;
    			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, group /* 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 ( !group ) {
    			group = tokenize( selector );
    		}
    		i = group.length;
    		while ( i-- ) {
    			cached = matcherFromTokens( group[i] );
    			if ( cached[ expando ] ) {
    				setMatchers.push( cached );
    			} else {
    				elementMatchers.push( cached );
    			}
    		}
  • ¶

    Cache the compiled function

    		cached = compilerCache( selector, matcherFromGroupMatchers( elementMatchers, setMatchers ) );
    	}
    	return cached;
    };
    
    function multipleContexts( selector, contexts, results ) {
    	var i = 0,
    		len = contexts.length;
    	for ( ; i < len; i++ ) {
    		Sizzle( selector, contexts[i], results );
    	}
    	return results;
    }
    
    function select( selector, context, results, seed ) {
    	var i, tokens, token, type, find,
    		match = tokenize( selector );
    
    	if ( !seed ) {
  • ¶

    Try to minimize operations if there is only one group

    		if ( match.length === 1 ) {
  • ¶

    Take a shortcut and set the context if the root selector is an ID

    			tokens = match[0] = match[0].slice( 0 );
    			if ( tokens.length > 2 && (token = tokens[0]).type === "ID" &&
    					support.getById && 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;
    				}
    				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 ) && 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 Provide match to avoid retokenization if we modified the selector above

    	compile( selector, match )(
    		seed,
    		context,
    		!documentIsHTML,
    		results,
    		rsibling.test( selector )
    	);
    	return results;
    }
  • ¶

    Deprecated

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

    Easy API for creating new setFilters

    function setFilters() {}
    setFilters.prototype = Expr.filters = Expr.pseudos;
    Expr.setFilters = new setFilters();
  • ¶

    One-time assignments

    Sort stability

    support.sortStable = expando.split("").sort( sortOrder ).join("") === expando;
  • ¶

    Initialize against the default document

    setDocument();
  • ¶

    Support: Chrome<<14 Always assume duplicates if they aren't passed to the comparison function

    [0, 0].sort( sortOrder );
    support.detectDuplicates = hasDuplicate;
    
    jQuery.find = Sizzle;
    jQuery.expr = Sizzle.selectors;
    jQuery.expr[":"] = jQuery.expr.pseudos;
    jQuery.unique = Sizzle.uniqueSort;
    jQuery.text = Sizzle.getText;
    jQuery.isXMLDoc = Sizzle.isXML;
    jQuery.contains = Sizzle.contains;
    
    
    })( window );
  • ¶

    String to Object options format cache

    var optionsCache = {};
  • ¶

    Convert String-formatted options into Object-formatted ones and store in cache

    function createOptions( options ) {
    	var object = optionsCache[ options ] = {};
    	jQuery.each( options.match( core_rnotwhite ) || [], 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" ?
    		( optionsCache[ options ] || createOptions( options ) ) :
    		jQuery.extend( {}, options );
    
    	var // Last fire value (for non-forgettable lists)
    		memory,
  • ¶

    Flag to know if list was already fired

    		fired,
  • ¶

    Flag to know if list is currently firing

    		firing,
  • ¶

    First callback to fire (used internally by add and fireWith)

    		firingStart,
  • ¶

    End of the loop when firing

    		firingLength,
  • ¶

    Index of currently firing callback (modified by remove if needed)

    		firingIndex,
  • ¶

    Actual callback list

    		list = [],
  • ¶

    Stack of fire calls for repeatable lists

    		stack = !options.once && [],
  • ¶

    Fire callbacks

    		fire = function( data ) {
    			memory = options.memory && data;
    			fired = true;
    			firingIndex = firingStart || 0;
    			firingStart = 0;
    			firingLength = list.length;
    			firing = true;
    			for ( ; list && firingIndex < firingLength; firingIndex++ ) {
    				if ( list[ firingIndex ].apply( data[ 0 ], data[ 1 ] ) === false && options.stopOnFalse ) {
    					memory = false; // To prevent further calls using add
    					break;
    				}
    			}
    			firing = false;
    			if ( list ) {
    				if ( stack ) {
    					if ( stack.length ) {
    						fire( stack.shift() );
    					}
    				} else if ( memory ) {
    					list = [];
    				} else {
    					self.disable();
    				}
    			}
    		},
  • ¶

    Actual Callbacks object

    		self = {
  • ¶

    Add a callback or a collection of callbacks to the list

    			add: function() {
    				if ( list ) {
  • ¶

    First, we save the current length

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

    Inspect recursively

    								add( arg );
    							}
    						});
    					})( arguments );
  • ¶

    Do we need to add the callbacks to the current firing batch?

    					if ( firing ) {
    						firingLength = list.length;
  • ¶

    With memory, if we're not firing then we should call right away

    					} else if ( memory ) {
    						firingStart = start;
    						fire( memory );
    					}
    				}
    				return this;
    			},
  • ¶

    Remove a callback from the list

    			remove: function() {
    				if ( list ) {
    					jQuery.each( arguments, function( _, arg ) {
    						var index;
    						while( ( index = jQuery.inArray( arg, list, index ) ) > -1 ) {
    							list.splice( index, 1 );
  • ¶

    Handle firing indexes

    							if ( firing ) {
    								if ( index <= firingLength ) {
    									firingLength--;
    								}
    								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 && list.length );
    			},
  • ¶

    Remove all callbacks from the list

    			empty: function() {
    				list = [];
    				firingLength = 0;
    				return this;
    			},
  • ¶

    Have the list do nothing anymore

    			disable: function() {
    				list = stack = memory = undefined;
    				return this;
    			},
  • ¶

    Is it disabled?

    			disabled: function() {
    				return !list;
    			},
  • ¶

    Lock the list in its current state

    			lock: function() {
    				stack = undefined;
    				if ( !memory ) {
    					self.disable();
    				}
    				return this;
    			},
  • ¶

    Is it locked?

    			locked: function() {
    				return !stack;
    			},
  • ¶

    Call all callbacks with the given context and arguments

    			fireWith: function( context, args ) {
    				args = args || [];
    				args = [ context, args.slice ? args.slice() : args ];
    				if ( list && ( !fired || stack ) ) {
    					if ( firing ) {
    						stack.push( args );
    					} else {
    						fire( args );
    					}
    				}
    				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;
    };
    jQuery.extend({
    
    	Deferred: function( func ) {
    		var tuples = [
  • ¶

    action, add listener, listener list, final state

    				[ "resolve", "done", jQuery.Callbacks("once memory"), "resolved" ],
    				[ "reject", "fail", jQuery.Callbacks("once memory"), "rejected" ],
    				[ "notify", "progress", jQuery.Callbacks("memory") ]
    			],
    			state = "pending",
    			promise = {
    				state: function() {
    					return state;
    				},
    				always: function() {
    					deferred.done( arguments ).fail( arguments );
    					return this;
    				},
    				then: function( /* fnDone, fnFail, fnProgress */ ) {
    					var fns = arguments;
    					return jQuery.Deferred(function( newDefer ) {
    						jQuery.each( tuples, function( i, tuple ) {
    							var action = tuple[ 0 ],
    								fn = jQuery.isFunction( fns[ i ] ) && fns[ i ];
  • ¶

    deferred[ done | fail | progress ] for forwarding actions to newDefer

    							deferred[ tuple[1] ](function() {
    								var returned = fn && fn.apply( this, arguments );
    								if ( returned && jQuery.isFunction( returned.promise ) ) {
    									returned.promise()
    										.done( newDefer.resolve )
    										.fail( newDefer.reject )
    										.progress( newDefer.notify );
    								} else {
    									newDefer[ action + "With" ]( this === promise ? newDefer.promise() : this, fn ? [ returned ] : arguments );
    								}
    							});
    						});
    						fns = null;
    					}).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 = {};
  • ¶

    Keep pipe for back-compat

    		promise.pipe = promise.then;
  • ¶

    Add list-specific methods

    		jQuery.each( tuples, function( i, tuple ) {
    			var list = tuple[ 2 ],
    				stateString = tuple[ 3 ];
  • ¶

    promise[ done | fail | progress ] = list.add

    			promise[ tuple[1] ] = list.add;
  • ¶

    Handle state

    			if ( stateString ) {
    				list.add(function() {
  • ¶

    state = [ resolved | rejected ]

    					state = stateString;
  • ¶

    [ reject_list | resolve_list ].disable; progress_list.lock

    				}, tuples[ i ^ 1 ][ 2 ].disable, tuples[ 2 ][ 2 ].lock );
    			}
  • ¶

    deferred[ resolve | reject | notify ]

    			deferred[ tuple[0] ] = function() {
    				deferred[ tuple[0] + "With" ]( this === deferred ? promise : this, arguments );
    				return this;
    			};
    			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( subordinate /* , ..., subordinateN */ ) {
    		var i = 0,
    			resolveValues = core_slice.call( arguments ),
    			length = resolveValues.length,
  • ¶

    the count of uncompleted subordinates

    			remaining = length !== 1 || ( subordinate && jQuery.isFunction( subordinate.promise ) ) ? length : 0,
  • ¶

    the master Deferred. If resolveValues consist of only a single Deferred, just use that.

    			deferred = remaining === 1 ? subordinate : jQuery.Deferred(),
  • ¶

    Update function for both resolve and progress values

    			updateFunc = function( i, contexts, values ) {
    				return function( value ) {
    					contexts[ i ] = this;
    					values[ i ] = arguments.length > 1 ? core_slice.call( arguments ) : value;
    					if( values === progressValues ) {
    						deferred.notifyWith( contexts, values );
    					} else if ( !( --remaining ) ) {
    						deferred.resolveWith( contexts, values );
    					}
    				};
    			},
    
    			progressValues, progressContexts, resolveContexts;
  • ¶

    add listeners to Deferred subordinates; treat others as resolved

    		if ( length > 1 ) {
    			progressValues = new Array( length );
    			progressContexts = new Array( length );
    			resolveContexts = new Array( length );
    			for ( ; i < length; i++ ) {
    				if ( resolveValues[ i ] && jQuery.isFunction( resolveValues[ i ].promise ) ) {
    					resolveValues[ i ].promise()
    						.done( updateFunc( i, resolveContexts, resolveValues ) )
    						.fail( deferred.reject )
    						.progress( updateFunc( i, progressContexts, progressValues ) );
    				} else {
    					--remaining;
    				}
    			}
    		}
  • ¶

    if we're not waiting on anything, resolve the master

    		if ( !remaining ) {
    			deferred.resolveWith( resolveContexts, resolveValues );
    		}
    
    		return deferred.promise();
    	}
    });
    jQuery.support = (function( support ) {
    	var input = document.createElement("input"),
    		fragment = document.createDocumentFragment(),
    		div = document.createElement("div"),
    		select = document.createElement("select"),
    		opt = select.appendChild( document.createElement("option") );
  • ¶

    Finish early in limited environments

    	if ( !input.type ) {
    		return support;
    	}
    
    	input.type = "checkbox";
  • ¶

    Support: Safari 5.1, iOS 5.1, Android 4.x, Android 2.3 Check the default checkbox/radio value ("" on old WebKit; "on" elsewhere)

    	support.checkOn = input.value !== "";
  • ¶

    Must access the parent to make an option select properly Support: IE9, IE10

    	support.optSelected = opt.selected;
  • ¶

    Will be defined later

    	support.reliableMarginRight = true;
    	support.boxSizingReliable = true;
    	support.pixelPosition = false;
  • ¶

    Make sure checked status is properly cloned Support: IE9, IE10

    	input.checked = true;
    	support.noCloneChecked = input.cloneNode( true ).checked;
  • ¶

    Make sure that the options inside disabled selects aren't marked as disabled (WebKit marks them as disabled)

    	select.disabled = true;
    	support.optDisabled = !opt.disabled;
  • ¶

    Check if an input maintains its value after becoming a radio Support: IE9, IE10

    	input = document.createElement("input");
    	input.value = "t";
    	input.type = "radio";
    	support.radioValue = input.value === "t";
  • ¶

    11217 - WebKit loses check when the name is after the checked attribute

    	input.setAttribute( "checked", "t" );
    	input.setAttribute( "name", "t" );
    
    	fragment.appendChild( input );
  • ¶

    Support: Safari 5.1, Android 4.x, Android 2.3 old WebKit doesn't clone checked state correctly in fragments

    	support.checkClone = fragment.cloneNode( true ).cloneNode( true ).lastChild.checked;
  • ¶

    Support: Firefox, Chrome, Safari Beware of CSP restrictions (https://developer.mozilla.org/en/Security/CSP)

    	support.focusinBubbles = "onfocusin" in window;
    
    	div.style.backgroundClip = "content-box";
    	div.cloneNode( true ).style.backgroundClip = "";
    	support.clearCloneStyle = div.style.backgroundClip === "content-box";
  • ¶

    Run tests that need a body at doc ready

    	jQuery(function() {
    		var container, marginDiv,
  • ¶

    Support: Firefox, Android 2.3 (Prefixed box-sizing versions).

    			divReset = "padding:0;margin:0;border:0;display:block;-webkit-box-sizing:content-box;-moz-box-sizing:content-box;box-sizing:content-box",
    			body = document.getElementsByTagName("body")[ 0 ];
    
    		if ( !body ) {
  • ¶

    Return for frameset docs that don't have a body

    			return;
    		}
    
    		container = document.createElement("div");
    		container.style.cssText = "border:0;width:0;height:0;position:absolute;top:0;left:-9999px;margin-top:1px";
  • ¶

    Check box-sizing and margin behavior.

    		body.appendChild( container ).appendChild( div );
    		div.innerHTML = "";
  • ¶

    Support: Firefox, Android 2.3 (Prefixed box-sizing versions).

    		div.style.cssText = "-webkit-box-sizing:border-box;-moz-box-sizing:border-box;box-sizing:border-box;padding:1px;border:1px;display:block;width:4px;margin-top:1%;position:absolute;top:1%";
  • ¶

    Workaround failing boxSizing test due to offsetWidth returning wrong value with some non-1 values of body zoom, ticket #13543

    		jQuery.swap( body, body.style.zoom != null ? { zoom: 1 } : {}, function() {
    			support.boxSizing = div.offsetWidth === 4;
    		});
  • ¶

    Use window.getComputedStyle because jsdom on node.js will break without it.

    		if ( window.getComputedStyle ) {
    			support.pixelPosition = ( window.getComputedStyle( div, null ) || {} ).top !== "1%";
    			support.boxSizingReliable = ( window.getComputedStyle( div, null ) || { width: "4px" } ).width === "4px";
  • ¶

    Support: Android 2.3 Check if div with explicit width and no margin-right incorrectly gets computed margin-right based on width of container. (#3333) WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right

    			marginDiv = div.appendChild( document.createElement("div") );
    			marginDiv.style.cssText = div.style.cssText = divReset;
    			marginDiv.style.marginRight = marginDiv.style.width = "0";
    			div.style.width = "1px";
    
    			support.reliableMarginRight =
    				!parseFloat( ( window.getComputedStyle( marginDiv, null ) || {} ).marginRight );
    		}
    
    		body.removeChild( container );
    	});
    
    	return support;
    })( {} );
    
    /*
    	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 data_user, data_priv,
    	rbrace = /(?:\{[\s\S]*\}|\[[\s\S]*\])$/,
    	rmultiDash = /([A-Z])/g;
    
    function Data() {
  • ¶

    Support: Android < 4, Old WebKit does not have Object.preventExtensions/freeze method, return new empty object instead with no [[set]] accessor

    	Object.defineProperty( this.cache = {}, 0, {
    		get: function() {
    			return {};
    		}
    	});
    
    	this.expando = jQuery.expando + Math.random();
    }
    
    Data.uid = 1;
    
    Data.accepts = function( owner ) {
  • ¶

    Accepts only: - Node - Node.ELEMENT_NODE - Node.DOCUMENT_NODE - Object - Any

    	return owner.nodeType ?
    		owner.nodeType === 1 || owner.nodeType === 9 : true;
    };
    
    Data.prototype = {
    	key: function( owner ) {
  • ¶

    We can accept data for non-element nodes in modern browsers, but we should not, see #8335. Always return the key for a frozen object.

    		if ( !Data.accepts( owner ) ) {
    			return 0;
    		}
    
    		var descriptor = {},
  • ¶

    Check if the owner object already has a cache key

    			unlock = owner[ this.expando ];
  • ¶

    If not, create one

    		if ( !unlock ) {
    			unlock = Data.uid++;
  • ¶

    Secure it in a non-enumerable, non-writable property

    			try {
    				descriptor[ this.expando ] = { value: unlock };
    				Object.defineProperties( owner, descriptor );
  • ¶

    Support: Android < 4 Fallback to a less secure definition

    			} catch ( e ) {
    				descriptor[ this.expando ] = unlock;
    				jQuery.extend( owner, descriptor );
    			}
    		}
  • ¶

    Ensure the cache object

    		if ( !this.cache[ unlock ] ) {
    			this.cache[ unlock ] = {};
    		}
    
    		return unlock;
    	},
    	set: function( owner, data, value ) {
    		var prop,
  • ¶

    There may be an unlock assigned to this node, if there is no entry for this "owner", create one inline and set the unlock as though an owner entry had always existed

    			unlock = this.key( owner ),
    			cache = this.cache[ unlock ];
  • ¶

    Handle: [ owner, key, value ] args

    		if ( typeof data === "string" ) {
    			cache[ data ] = value;
  • ¶

    Handle: [ owner, { properties } ] args

    		} else {
  • ¶

    Fresh assignments by object are shallow copied

    			if ( jQuery.isEmptyObject( cache ) ) {
    				jQuery.extend( this.cache[ unlock ], data );
  • ¶

    Otherwise, copy the properties one-by-one to the cache object

    			} else {
    				for ( prop in data ) {
    					cache[ prop ] = data[ prop ];
    				}
    			}
    		}
    		return cache;
    	},
    	get: function( owner, key ) {
  • ¶

    Either a valid cache is found, or will be created. New caches will be created and the unlock returned, allowing direct access to the newly created empty data object. A valid owner object must be provided.

    		var cache = this.cache[ this.key( owner ) ];
    
    		return key === undefined ?
    			cache : cache[ 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, name, camel,
    			unlock = this.key( owner ),
    			cache = this.cache[ unlock ];
    
    		if ( key === undefined ) {
    			this.cache[ unlock ] = {};
    
    		} else {
  • ¶

    Support array or space separated string of keys

    			if ( jQuery.isArray( key ) ) {
  • ¶

    If "name" is an array of keys... When data is initially created, via ("key", "val") signature, keys will be converted to camelCase. Since there is no way to tell how a key was added, remove both plain key and camelCase key. #12786 This will only penalize the array argument path.

    				name = key.concat( key.map( jQuery.camelCase ) );
    			} else {
    				camel = jQuery.camelCase( key );
  • ¶

    Try the string as a key before any manipulation

    				if ( key in cache ) {
    					name = [ key, camel ];
    				} else {
  • ¶

    If a key with the spaces exists, use it. Otherwise, create an array by matching non-whitespace

    					name = camel;
    					name = name in cache ?
    						[ name ] : ( name.match( core_rnotwhite ) || [] );
    				}
    			}
    
    			i = name.length;
    			while ( i-- ) {
    				delete cache[ name[ i ] ];
    			}
    		}
    	},
    	hasData: function( owner ) {
    		return !jQuery.isEmptyObject(
    			this.cache[ owner[ this.expando ] ] || {}
    		);
    	},
    	discard: function( owner ) {
    		if ( owner[ this.expando ] ) {
    			delete this.cache[ owner[ this.expando ] ];
    		}
    	}
    };
  • ¶

    These may be used throughout the jQuery core codebase

    data_user = new Data();
    data_priv = new Data();
    
    
    jQuery.extend({
    	acceptData: Data.accepts,
    
    	hasData: function( elem ) {
    		return data_user.hasData( elem ) || data_priv.hasData( elem );
    	},
    
    	data: function( elem, name, data ) {
    		return data_user.access( elem, name, data );
    	},
    
    	removeData: function( elem, name ) {
    		data_user.remove( elem, name );
    	},
  • ¶

    TODO: Now that all calls to _data and _removeData have been replaced with direct calls to data_priv methods, these can be deprecated.

    	_data: function( elem, name, data ) {
    		return data_priv.access( elem, name, data );
    	},
    
    	_removeData: function( elem, name ) {
    		data_priv.remove( elem, name );
    	}
    });
    
    jQuery.fn.extend({
    	data: function( key, value ) {
    		var attrs, name,
    			elem = this[ 0 ],
    			i = 0,
    			data = null;
  • ¶

    Gets all values

    		if ( key === undefined ) {
    			if ( this.length ) {
    				data = data_user.get( elem );
    
    				if ( elem.nodeType === 1 && !data_priv.get( elem, "hasDataAttrs" ) ) {
    					attrs = elem.attributes;
    					for ( ; i < attrs.length; i++ ) {
    						name = attrs[ i ].name;
    
    						if ( name.indexOf( "data-" ) === 0 ) {
    							name = jQuery.camelCase( name.slice(5) );
    							dataAttr( elem, name, data[ name ] );
    						}
    					}
    					data_priv.set( elem, "hasDataAttrs", true );
    				}
    			}
    
    			return data;
    		}
  • ¶

    Sets multiple values

    		if ( typeof key === "object" ) {
    			return this.each(function() {
    				data_user.set( this, key );
    			});
    		}
    
    		return jQuery.access( this, function( value ) {
    			var data,
    				camelKey = jQuery.camelCase( key );
  • ¶

    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 with the key as-is

    				data = data_user.get( elem, key );
    				if ( data !== undefined ) {
    					return data;
    				}
  • ¶

    Attempt to get data from the cache with the key camelized

    				data = data_user.get( elem, camelKey );
    				if ( data !== undefined ) {
    					return data;
    				}
  • ¶

    Attempt to "discover" the data in HTML5 custom data-* attrs

    				data = dataAttr( elem, camelKey, undefined );
    				if ( data !== undefined ) {
    					return data;
    				}
  • ¶

    We tried really hard, but the data doesn't exist.

    				return;
    			}
  • ¶

    Set the data...

    			this.each(function() {
  • ¶

    First, attempt to store a copy or reference of any data that might've been store with a camelCased key.

    				var data = data_user.get( this, camelKey );
  • ¶

    For HTML5 data- attribute interop, we have to store property names with dashes in a camelCase form. This might not apply to all properties...

    				data_user.set( this, camelKey, value );
  • ¶

    *... In the case of properties that might actually have dashes, we need to also store a copy of that unchanged property.

    				if ( key.indexOf("-") !== -1 && data !== undefined ) {
    					data_user.set( this, key, value );
    				}
    			});
    		}, null, value, arguments.length > 1, null, true );
    	},
    
    	removeData: function( key ) {
    		return this.each(function() {
    			data_user.remove( this, key );
    		});
    	}
    });
    
    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, "-$1" ).toLowerCase();
    		data = elem.getAttribute( name );
    
    		if ( typeof data === "string" ) {
    			try {
    				data = data === "true" ? true :
    					data === "false" ? false :
    					data === "null" ? null :
  • ¶

    Only convert to a number if it doesn't change the string

    					+data + "" === data ? +data :
    					rbrace.test( data ) ? JSON.parse( data ) :
    					data;
    			} catch( e ) {}
  • ¶

    Make sure we set the data so it isn't changed later

    			data_user.set( elem, key, data );
    		} else {
    			data = undefined;
    		}
    	}
    	return data;
    }
    jQuery.extend({
    	queue: function( elem, type, data ) {
    		var queue;
    
    		if ( elem ) {
    			type = ( type || "fx" ) + "queue";
    			queue = data_priv.get( elem, type );
  • ¶

    Speed up dequeue by getting out quickly if this is just a lookup

    			if ( data ) {
    				if ( !queue || jQuery.isArray( data ) ) {
    					queue = data_priv.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--;
    		}
    
    		hooks.cur = fn;
    		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 intended for public consumption - generates a queueHooks object, or returns the current one

    	_queueHooks: function( elem, type ) {
    		var key = type + "queueHooks";
    		return data_priv.get( elem, key ) || data_priv.access( elem, key, {
    			empty: jQuery.Callbacks("once memory").add(function() {
    				data_priv.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 );
    		});
    	},
  • ¶

    Based off of the plugin by Clint Helfers, with permission. http://blindsignals.com/index.php/2009/07/jquery-delay/

    	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 = setTimeout( next, time );
    			hooks.stop = function() {
    				clearTimeout( timeout );
    			};
    		});
    	},
    	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 = data_priv.get( elements[ i ], type + "queueHooks" );
    			if ( tmp && tmp.empty ) {
    				count++;
    				tmp.empty.add( resolve );
    			}
    		}
    		resolve();
    		return defer.promise( obj );
    	}
    });
    var nodeHook, boolHook,
    	rclass = /[\t\r\n\f]/g,
    	rreturn = /\r/g,
    	rfocusable = /^(?:input|select|textarea|button)$/i;
    
    jQuery.fn.extend({
    	attr: function( name, value ) {
    		return jQuery.access( this, jQuery.attr, name, value, arguments.length > 1 );
    	},
    
    	removeAttr: function( name ) {
    		return this.each(function() {
    			jQuery.removeAttr( this, name );
    		});
    	},
    
    	prop: function( name, value ) {
    		return jQuery.access( this, jQuery.prop, name, value, arguments.length > 1 );
    	},
    
    	removeProp: function( name ) {
    		return this.each(function() {
    			delete this[ jQuery.propFix[ name ] || name ];
    		});
    	},
    
    	addClass: function( value ) {
    		var classes, elem, cur, clazz, j,
    			i = 0,
    			len = this.length,
    			proceed = typeof value === "string" && value;
    
    		if ( jQuery.isFunction( value ) ) {
    			return this.each(function( j ) {
    				jQuery( this ).addClass( value.call( this, j, this.className ) );
    			});
    		}
    
    		if ( proceed ) {
  • ¶

    The disjunction here is for better compressibility (see removeClass)

    			classes = ( value || "" ).match( core_rnotwhite ) || [];
    
    			for ( ; i < len; i++ ) {
    				elem = this[ i ];
    				cur = elem.nodeType === 1 && ( elem.className ?
    					( " " + elem.className + " " ).replace( rclass, " " ) :
    					" "
    				);
    
    				if ( cur ) {
    					j = 0;
    					while ( (clazz = classes[j++]) ) {
    						if ( cur.indexOf( " " + clazz + " " ) < 0 ) {
    							cur += clazz + " ";
    						}
    					}
    					elem.className = jQuery.trim( cur );
    
    				}
    			}
    		}
    
    		return this;
    	},
    
    	removeClass: function( value ) {
    		var classes, elem, cur, clazz, j,
    			i = 0,
    			len = this.length,
    			proceed = arguments.length === 0 || typeof value === "string" && value;
    
    		if ( jQuery.isFunction( value ) ) {
    			return this.each(function( j ) {
    				jQuery( this ).removeClass( value.call( this, j, this.className ) );
    			});
    		}
    		if ( proceed ) {
    			classes = ( value || "" ).match( core_rnotwhite ) || [];
    
    			for ( ; i < len; i++ ) {
    				elem = this[ i ];
  • ¶

    This expression is here for better compressibility (see addClass)

    				cur = elem.nodeType === 1 && ( elem.className ?
    					( " " + elem.className + " " ).replace( rclass, " " ) :
    					""
    				);
    
    				if ( cur ) {
    					j = 0;
    					while ( (clazz = classes[j++]) ) {
  • ¶

    Remove all instances

    						while ( cur.indexOf( " " + clazz + " " ) >= 0 ) {
    							cur = cur.replace( " " + clazz + " ", " " );
    						}
    					}
    					elem.className = value ? jQuery.trim( cur ) : "";
    				}
    			}
    		}
    
    		return this;
    	},
    
    	toggleClass: function( value, stateVal ) {
    		var type = typeof value,
    			isBool = typeof stateVal === "boolean";
    
    		if ( jQuery.isFunction( value ) ) {
    			return this.each(function( i ) {
    				jQuery( this ).toggleClass( value.call(this, i, this.className, stateVal), stateVal );
    			});
    		}
    
    		return this.each(function() {
    			if ( type === "string" ) {
  • ¶

    toggle individual class names

    				var className,
    					i = 0,
    					self = jQuery( this ),
    					state = stateVal,
    					classNames = value.match( core_rnotwhite ) || [];
    
    				while ( (className = classNames[ i++ ]) ) {
  • ¶

    check each className given, space separated list

    					state = isBool ? state : !self.hasClass( className );
    					self[ state ? "addClass" : "removeClass" ]( className );
    				}
  • ¶

    Toggle whole class name

    			} else if ( type === core_strundefined || type === "boolean" ) {
    				if ( this.className ) {
  • ¶

    store className if set

    					data_priv.set( this, "__className__", this.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.

    				this.className = this.className || value === false ? "" : data_priv.get( this, "__className__" ) || "";
    			}
    		});
    	},
    
    	hasClass: function( selector ) {
    		var className = " " + selector + " ",
    			i = 0,
    			l = this.length;
    		for ( ; i < l; i++ ) {
    			if ( this[i].nodeType === 1 && (" " + this[i].className + " ").replace(rclass, " ").indexOf( className ) >= 0 ) {
    				return true;
    			}
    		}
    
    		return false;
    	},
    
    	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;
    
    				return typeof ret === "string" ?
  • ¶

    handle most common string cases

    					ret.replace(rreturn, "") :
  • ¶

    handle cases where value is null/undef or number

    					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 ( jQuery.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 ) {
  • ¶

    attributes.value is undefined in Blackberry 4.7 but uses .value. See #6932

    				var val = elem.attributes.value;
    				return !val || val.specified ? elem.value : elem.text;
    			}
    		},
    		select: {
    			get: function( elem ) {
    				var value, option,
    					options = elem.options,
    					index = elem.selectedIndex,
    					one = elem.type === "select-one" || index < 0,
    					values = one ? null : [],
    					max = one ? index + 1 : options.length,
    					i = index < 0 ?
    						max :
    						one ? index : 0;
  • ¶

    Loop through all the selected options

    				for ( ; i < max; i++ ) {
    					option = options[ i ];
  • ¶

    IE6-9 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

    							( jQuery.support.optDisabled ? !option.disabled : option.getAttribute("disabled") === null ) &&
    							( !option.parentNode.disabled || !jQuery.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 ];
    					if ( (option.selected = jQuery.inArray( jQuery(option).val(), values ) >= 0) ) {
    						optionSet = true;
    					}
    				}
  • ¶

    force browsers to behave consistently when non-matching value is set

    				if ( !optionSet ) {
    					elem.selectedIndex = -1;
    				}
    				return values;
    			}
    		}
    	},
    
    	attr: function( elem, name, value ) {
    		var hooks, ret,
    			nType = elem.nodeType;
  • ¶

    don't get/set attributes on text, comment and attribute nodes

    		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
    			return;
    		}
  • ¶

    Fallback to prop when attributes are not supported

    		if ( typeof elem.getAttribute === core_strundefined ) {
    			return jQuery.prop( elem, name, value );
    		}
  • ¶

    All attributes are lowercase Grab necessary hook if one is defined

    		if ( nType !== 1 || !jQuery.isXMLDoc( elem ) ) {
    			name = name.toLowerCase();
    			hooks = jQuery.attrHooks[ name ] ||
    				( jQuery.expr.match.bool.test( name ) ? boolHook : nodeHook );
    		}
    
    		if ( value !== undefined ) {
    
    			if ( value === null ) {
    				jQuery.removeAttr( elem, name );
    
    			} else if ( hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ) {
    				return ret;
    
    			} else {
    				elem.setAttribute( name, value + "" );
    				return value;
    			}
    
    		} else if ( hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ) {
    			return ret;
    
    		} else {
    			ret = jQuery.find.attr( elem, name );
  • ¶

    Non-existent attributes return null, we normalize to undefined

    			return ret == null ?
    				undefined :
    				ret;
    		}
    	},
    
    	removeAttr: function( elem, value ) {
    		var name, propName,
    			i = 0,
    			attrNames = value && value.match( core_rnotwhite );
    
    		if ( attrNames && elem.nodeType === 1 ) {
    			while ( (name = attrNames[i++]) ) {
    				propName = jQuery.propFix[ name ] || name;
  • ¶

    Boolean attributes get special treatment (#10870)

    				if ( jQuery.expr.match.bool.test( name ) ) {
  • ¶

    Set corresponding property to false

    					elem[ propName ] = false;
    				}
    
    				elem.removeAttribute( name );
    			}
    		}
    	},
    
    	attrHooks: {
    		type: {
    			set: function( elem, value ) {
    				if ( !jQuery.support.radioValue && value === "radio" && jQuery.nodeName(elem, "input") ) {
  • ¶

    Setting the type on a radio button after the value resets the value in IE6-9 Reset value to default in case type is set after value during creation

    					var val = elem.value;
    					elem.setAttribute( "type", value );
    					if ( val ) {
    						elem.value = val;
    					}
    					return value;
    				}
    			}
    		}
    	},
    
    	propFix: {
    		"for": "htmlFor",
    		"class": "className"
    	},
    
    	prop: function( elem, name, value ) {
    		var ret, hooks, notxml,
    			nType = elem.nodeType;
  • ¶

    don't get/set properties on text, comment and attribute nodes

    		if ( !elem || nType === 3 || nType === 8 || nType === 2 ) {
    			return;
    		}
    
    		notxml = nType !== 1 || !jQuery.isXMLDoc( elem );
    
    		if ( notxml ) {
  • ¶

    Fix name and attach hooks

    			name = jQuery.propFix[ name ] || name;
    			hooks = jQuery.propHooks[ name ];
    		}
    
    		if ( value !== undefined ) {
    			return hooks && "set" in hooks && (ret = hooks.set( elem, value, name )) !== undefined ?
    				ret :
    				( elem[ name ] = value );
    
    		} else {
    			return hooks && "get" in hooks && (ret = hooks.get( elem, name )) !== null ?
    				ret :
    				elem[ name ];
    		}
    	},
    
    	propHooks: {
    		tabIndex: {
    			get: function( elem ) {
    				return elem.hasAttribute( "tabindex" ) || rfocusable.test( elem.nodeName ) || elem.href ?
    					elem.tabIndex :
    					-1;
    			}
    		}
    	}
    });
  • ¶

    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 = jQuery.expr.attrHandle[ name ] || jQuery.find.attr;
    
    	jQuery.expr.attrHandle[ name ] = function( elem, name, isXML ) {
    		var fn = jQuery.expr.attrHandle[ name ],
    			ret = isXML ?
    				undefined :
    				/* jshint eqeqeq: false */
  • ¶

    Temporarily disable this handler to check existence

    				(jQuery.expr.attrHandle[ name ] = undefined) !=
    					getter( elem, name, isXML ) ?
    
    					name.toLowerCase() :
    					null;
  • ¶

    Restore handler

    		jQuery.expr.attrHandle[ name ] = fn;
    
    		return ret;
    	};
    });
  • ¶

    Support: IE9+ Selectedness for an option in an optgroup can be inaccurate

    if ( !jQuery.support.optSelected ) {
    	jQuery.propHooks.selected = {
    		get: function( elem ) {
    			var parent = elem.parentNode;
    			if ( parent && parent.parentNode ) {
    				parent.parentNode.selectedIndex;
    			}
    			return null;
    		}
    	};
    }
    
    jQuery.each([
    	"tabIndex",
    	"readOnly",
    	"maxLength",
    	"cellSpacing",
    	"cellPadding",
    	"rowSpan",
    	"colSpan",
    	"useMap",
    	"frameBorder",
    	"contentEditable"
    ], function() {
    	jQuery.propFix[ this.toLowerCase() ] = this;
    });
  • ¶

    Radios and checkboxes getter/setter

    jQuery.each([ "radio", "checkbox" ], function() {
    	jQuery.valHooks[ this ] = {
    		set: function( elem, value ) {
    			if ( jQuery.isArray( value ) ) {
    				return ( elem.checked = jQuery.inArray( jQuery(elem).val(), value ) >= 0 );
    			}
    		}
    	};
    	if ( !jQuery.support.checkOn ) {
    		jQuery.valHooks[ this ].get = function( elem ) {
  • ¶

    Support: Webkit "" is returned instead of "on" if a value isn't specified

    			return elem.getAttribute("value") === null ? "on" : elem.value;
    		};
    	}
    });
    var rkeyEvent = /^key/,
    	rmouseEvent = /^(?:mouse|contextmenu)|click/,
    	rfocusMorph = /^(?:focusinfocus|focusoutblur)$/,
    	rtypenamespace = /^([^.]*)(?:\.(.+)|)$/;
    
    function returnTrue() {
    	return true;
    }
    
    function returnFalse() {
    	return false;
    }
    
    function safeActiveElement() {
    	try {
    		return document.activeElement;
    	} catch ( err ) { }
    }
    
    /*
     * 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 = data_priv.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;
    		}
  • ¶

    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 !== core_strundefined && (!e || jQuery.event.triggered !== e.type) ?
    					jQuery.event.dispatch.apply( eventHandle.elem, arguments ) :
    					undefined;
    			};
  • ¶

    Add elem as a property of the handle fn to prevent a memory leak with IE non-native events

    			eventHandle.elem = elem;
    		}
  • ¶

    Handle multiple events separated by a space

    		types = ( types || "" ).match( core_rnotwhite ) || [""];
    		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, false );
    					}
    				}
    			}
    
    			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;
    		}
  • ¶

    Nullify elem to prevent memory leaks in IE

    		elem = null;
    	},
  • ¶

    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 = data_priv.hasData( elem ) && data_priv.get( elem );
    
    		if ( !elemData || !(events = elemData.events) ) {
    			return;
    		}
  • ¶

    Once for each type.namespace in types; type may be omitted

    		types = ( types || "" ).match( core_rnotwhite ) || [""];
    		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 the expando if it's no longer used

    		if ( jQuery.isEmptyObject( events ) ) {
    			delete elemData.handle;
    			data_priv.remove( elem, "events" );
    		}
    	},
    
    	trigger: function( event, data, elem, onlyHandlers ) {
    
    		var i, cur, tmp, bubbleType, ontype, handle, special,
    			eventPath = [ elem || document ],
    			type = core_hasOwn.call( event, "type" ) ? event.type : event,
    			namespaces = core_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(".") >= 0 ) {
  • ¶

    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.namespace_re = 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 = ( data_priv.get( cur, "events" ) || {} )[ event.type ] && data_priv.get( cur, "handle" );
    			if ( handle ) {
    				handle.apply( cur, data );
    			}
  • ¶

    Native handler

    			handle = ontype && cur[ ontype ];
    			if ( handle && jQuery.acceptData( cur ) && handle.apply && handle.apply( cur, data ) === 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) &&
    				jQuery.acceptData( elem ) ) {
  • ¶

    Call a native DOM method on the target with the same name 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;
    	},
    
    	dispatch: function( event ) {
  • ¶

    Make a writable jQuery.Event from the native event object

    		event = jQuery.event.fix( event );
    
    		var i, j, ret, matched, handleObj,
    			handlerQueue = [],
    			args = core_slice.call( arguments ),
    			handlers = ( data_priv.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;
    		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.namespace_re || event.namespace_re.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, matches, sel, handleObj,
    			handlerQueue = [],
    			delegateCount = handlers.delegateCount,
    			cur = event.target;
  • ¶

    Find delegate handlers Black-hole SVG instance trees (#13180) Avoid non-left-click bubbling in Firefox (#3861)

    		if ( delegateCount && cur.nodeType && (!event.button || event.type !== "click") ) {
    
    			for ( ; cur !== this; cur = cur.parentNode || this ) {
  • ¶

    Don't process clicks on disabled elements (#6911, #8165, #11382, #11764)

    				if ( cur.disabled !== true || event.type !== "click" ) {
    					matches = [];
    					for ( i = 0; i < delegateCount; i++ ) {
    						handleObj = handlers[ i ];
  • ¶

    Don't conflict with Object.prototype properties (#13203)

    						sel = handleObj.selector + " ";
    
    						if ( matches[ sel ] === undefined ) {
    							matches[ sel ] = handleObj.needsContext ?
    								jQuery( sel, this ).index( cur ) >= 0 :
    								jQuery.find( sel, this, null, [ cur ] ).length;
    						}
    						if ( matches[ sel ] ) {
    							matches.push( handleObj );
    						}
    					}
    					if ( matches.length ) {
    						handlerQueue.push({ elem: cur, handlers: matches });
    					}
    				}
    			}
    		}
  • ¶

    Add the remaining (directly-bound) handlers

    		if ( delegateCount < handlers.length ) {
    			handlerQueue.push({ elem: this, handlers: handlers.slice( delegateCount ) });
    		}
    
    		return handlerQueue;
    	},
  • ¶

    Includes some event props shared by KeyEvent and MouseEvent

    	props: "altKey bubbles cancelable ctrlKey currentTarget eventPhase metaKey relatedTarget shiftKey target timeStamp view which".split(" "),
    
    	fixHooks: {},
    
    	keyHooks: {
    		props: "char charCode key keyCode".split(" "),
    		filter: function( event, original ) {
  • ¶

    Add which for key events

    			if ( event.which == null ) {
    				event.which = original.charCode != null ? original.charCode : original.keyCode;
    			}
    
    			return event;
    		}
    	},
    
    	mouseHooks: {
    		props: "button buttons clientX clientY offsetX offsetY pageX pageY screenX screenY toElement".split(" "),
    		filter: function( event, original ) {
    			var eventDoc, doc, body,
    				button = original.button;
  • ¶

    Calculate pageX/Y if missing and clientX/Y available

    			if ( event.pageX == null && original.clientX != null ) {
    				eventDoc = event.target.ownerDocument || document;
    				doc = eventDoc.documentElement;
    				body = eventDoc.body;
    
    				event.pageX = original.clientX + ( doc && doc.scrollLeft || body && body.scrollLeft || 0 ) - ( doc && doc.clientLeft || body && body.clientLeft || 0 );
    				event.pageY = original.clientY + ( doc && doc.scrollTop  || body && body.scrollTop  || 0 ) - ( doc && doc.clientTop  || body && body.clientTop  || 0 );
    			}
  • ¶

    Add which for click: 1 === left; 2 === middle; 3 === right Note: button is not normalized, so don't use it

    			if ( !event.which && button !== undefined ) {
    				event.which = ( button & 1 ? 1 : ( button & 2 ? 3 : ( button & 4 ? 2 : 0 ) ) );
    			}
    
    			return event;
    		}
    	},
    
    	fix: function( event ) {
    		if ( event[ jQuery.expando ] ) {
    			return event;
    		}
  • ¶

    Create a writable copy of the event object and normalize some properties

    		var i, prop, copy,
    			type = event.type,
    			originalEvent = event,
    			fixHook = this.fixHooks[ type ];
    
    		if ( !fixHook ) {
    			this.fixHooks[ type ] = fixHook =
    				rmouseEvent.test( type ) ? this.mouseHooks :
    				rkeyEvent.test( type ) ? this.keyHooks :
    				{};
    		}
    		copy = fixHook.props ? this.props.concat( fixHook.props ) : this.props;
    
    		event = new jQuery.Event( originalEvent );
    
    		i = copy.length;
    		while ( i-- ) {
    			prop = copy[ i ];
    			event[ prop ] = originalEvent[ prop ];
    		}
  • ¶

    Support: Cordova 2.5 (WebKit) (#13255) All events should have a target; Cordova deviceready doesn't

    		if ( !event.target ) {
    			event.target = document;
    		}
  • ¶

    Support: Safari 6.0+, Chrome < 28 Target should not be a text node (#504, #13143)

    		if ( event.target.nodeType === 3 ) {
    			event.target = event.target.parentNode;
    		}
    
    		return fixHook.filter? fixHook.filter( event, originalEvent ) : event;
    	},
    
    	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 checkbox, fire native event so checked state will be right

    			trigger: function() {
    				if ( this.type === "checkbox" && this.click && jQuery.nodeName( this, "input" ) ) {
    					this.click();
    					return false;
    				}
    			},
  • ¶

    For cross-browser consistency, don't fire native .click() on links

    			_default: function( event ) {
    				return jQuery.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.returnValue = event.result;
    				}
    			}
    		}
    	},
    
    	simulate: function( type, elem, event, bubble ) {
  • ¶

    Piggyback on a donor event to simulate a different one. Fake originalEvent to avoid donor's stopPropagation, but if the simulated event prevents default then we do the same on the donor.

    		var e = jQuery.extend(
    			new jQuery.Event(),
    			event,
    			{
    				type: type,
    				isSimulated: true,
    				originalEvent: {}
    			}
    		);
    		if ( bubble ) {
    			jQuery.event.trigger( e, null, elem );
    		} else {
    			jQuery.event.dispatch.call( elem, e );
    		}
    		if ( e.isDefaultPrevented() ) {
    			event.preventDefault();
    		}
    	}
    };
    
    jQuery.removeEvent = function( elem, type, handle ) {
    	if ( elem.removeEventListener ) {
    		elem.removeEventListener( type, handle, false );
    	}
    };
    
    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.getPreventDefault && src.getPreventDefault() ) ? returnTrue : returnFalse;
  • ¶

    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 http://www.w3.org/TR/2003/WD-DOM-Level-3-Events-20030331/ecma-script-binding.html

    jQuery.Event.prototype = {
    	isDefaultPrevented: returnFalse,
    	isPropagationStopped: returnFalse,
    	isImmediatePropagationStopped: returnFalse,
    
    	preventDefault: function() {
    		var e = this.originalEvent;
    
    		this.isDefaultPrevented = returnTrue;
    
    		if ( e && e.preventDefault ) {
    			e.preventDefault();
    		}
    	},
    	stopPropagation: function() {
    		var e = this.originalEvent;
    
    		this.isPropagationStopped = returnTrue;
    
    		if ( e && e.stopPropagation ) {
    			e.stopPropagation();
    		}
    	},
    	stopImmediatePropagation: function() {
    		this.isImmediatePropagationStopped = returnTrue;
    		this.stopPropagation();
    	}
    };
  • ¶

    Create mouseenter/leave events using mouseover/out and event-time checks Support: Chrome 15+

    jQuery.each({
    	mouseenter: "mouseover",
    	mouseleave: "mouseout"
    }, 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 mousenter/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;
    		}
    	};
    });
  • ¶

    Create "bubbling" focus and blur events Support: Firefox, Chrome, Safari

    if ( !jQuery.support.focusinBubbles ) {
    	jQuery.each({ focus: "focusin", blur: "focusout" }, function( orig, fix ) {
  • ¶

    Attach a single capturing handler while someone wants focusin/focusout

    		var attaches = 0,
    			handler = function( event ) {
    				jQuery.event.simulate( fix, event.target, jQuery.event.fix( event ), true );
    			};
    
    		jQuery.event.special[ fix ] = {
    			setup: function() {
    				if ( attaches++ === 0 ) {
    					document.addEventListener( orig, handler, true );
    				}
    			},
    			teardown: function() {
    				if ( --attaches === 0 ) {
    					document.removeEventListener( orig, handler, true );
    				}
    			}
    		};
    	});
    }
    
    jQuery.fn.extend({
    
    	on: function( types, selector, data, fn, /*INTERNAL*/ 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 ) {
    				this.on( type, selector, data, types[ type ], one );
    			}
    			return this;
    		}
    
    		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 this;
    		}
    
    		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 this.each( function() {
    			jQuery.event.add( this, types, fn, data, selector );
    		});
    	},
    	one: function( types, selector, data, fn ) {
    		return this.on( 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 );
    		});
    	},
    
    	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 );
    		}
    	}
    });
    var isSimple = /^.[^:#\[\.,]*$/,
    	rparentsprev = /^(?:parents|prev(?:Until|All))/,
    	rneedsContext = jQuery.expr.match.needsContext,
  • ¶

    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({
    	find: function( selector ) {
    		var i,
    			ret = [],
    			self = this,
    			len = self.length;
    
    		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;
    					}
    				}
    			}) );
    		}
    
    		for ( i = 0; i < len; i++ ) {
    			jQuery.find( selector, self[ i ], ret );
    		}
  • ¶

    Needed because $( selector, context ) becomes $( context ).find( selector )

    		ret = this.pushStack( len > 1 ? jQuery.unique( ret ) : ret );
    		ret.selector = this.selector ? this.selector + " " + selector : selector;
    		return ret;
    	},
    
    	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;
    				}
    			}
    		});
    	},
    
    	not: function( selector ) {
    		return this.pushStack( winnow(this, selector || [], true) );
    	},
    
    	filter: function( selector ) {
    		return this.pushStack( winnow(this, selector || [], false) );
    	},
    
    	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;
    	},
    
    	closest: function( selectors, context ) {
    		var cur,
    			i = 0,
    			l = this.length,
    			matched = [],
    			pos = ( rneedsContext.test( selectors ) || typeof selectors !== "string" ) ?
    				jQuery( selectors, context || this.context ) :
    				0;
    
    		for ( ; i < l; i++ ) {
    			for ( cur = this[i]; cur && cur !== context; cur = cur.parentNode ) {
  • ¶

    Always skip document fragments

    				if ( cur.nodeType < 11 && (pos ?
    					pos.index(cur) > -1 :
  • ¶

    Don't pass non-elements to Sizzle

    					cur.nodeType === 1 &&
    						jQuery.find.matchesSelector(cur, selectors)) ) {
    
    					cur = matched.push( cur );
    					break;
    				}
    			}
    		}
    
    		return this.pushStack( matched.length > 1 ? jQuery.unique( matched ) : matched );
    	},
  • ¶

    Determine the position of an element within the matched set of elements

    	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 core_indexOf.call( jQuery( elem ), this[ 0 ] );
    		}
  • ¶

    Locate the position of the desired element

    		return core_indexOf.call( this,
  • ¶

    If it receives a jQuery object, the first element is used

    			elem.jquery ? elem[ 0 ] : elem
    		);
    	},
    
    	add: function( selector, context ) {
    		var set = typeof selector === "string" ?
    				jQuery( selector, context ) :
    				jQuery.makeArray( selector && selector.nodeType ? [ selector ] : selector ),
    			all = jQuery.merge( this.get(), set );
    
    		return this.pushStack( jQuery.unique(all) );
    	},
    
    	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 jQuery.dir( elem, "parentNode" );
    	},
    	parentsUntil: function( elem, i, until ) {
    		return jQuery.dir( elem, "parentNode", until );
    	},
    	next: function( elem ) {
    		return sibling( elem, "nextSibling" );
    	},
    	prev: function( elem ) {
    		return sibling( elem, "previousSibling" );
    	},
    	nextAll: function( elem ) {
    		return jQuery.dir( elem, "nextSibling" );
    	},
    	prevAll: function( elem ) {
    		return jQuery.dir( elem, "previousSibling" );
    	},
    	nextUntil: function( elem, i, until ) {
    		return jQuery.dir( elem, "nextSibling", until );
    	},
    	prevUntil: function( elem, i, until ) {
    		return jQuery.dir( elem, "previousSibling", until );
    	},
    	siblings: function( elem ) {
    		return jQuery.sibling( ( elem.parentNode || {} ).firstChild, elem );
    	},
    	children: function( elem ) {
    		return jQuery.sibling( elem.firstChild );
    	},
    	contents: function( elem ) {
    		return jQuery.nodeName( elem, "iframe" ) ?
    			elem.contentDocument || elem.contentWindow.document :
    			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.unique( matched );
    			}
  • ¶

    Reverse order for parents* and prev-derivatives

    			if ( rparentsprev.test( name ) ) {
    				matched.reverse();
    			}
    		}
    
    		return this.pushStack( matched );
    	};
    });
    
    jQuery.extend({
    	filter: function( expr, elems, not ) {
    		var elem = elems[ 0 ];
    
    		if ( not ) {
    			expr = ":not(" + expr + ")";
    		}
    
    		return elems.length === 1 && elem.nodeType === 1 ?
    			jQuery.find.matchesSelector( elem, expr ) ? [ elem ] : [] :
    			jQuery.find.matches( expr, jQuery.grep( elems, function( elem ) {
    				return elem.nodeType === 1;
    			}));
    	},
    
    	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;
    	},
    
    	sibling: function( n, elem ) {
    		var matched = [];
    
    		for ( ; n; n = n.nextSibling ) {
    			if ( n.nodeType === 1 && n !== elem ) {
    				matched.push( n );
    			}
    		}
    
    		return matched;
    	}
    });
  • ¶

    Implement the identical functionality for filter and not

    function winnow( elements, qualifier, not ) {
    	if ( jQuery.isFunction( qualifier ) ) {
    		return jQuery.grep( elements, function( elem, i ) {
    			/* jshint -W018 */
    			return !!qualifier.call( elem, i, elem ) !== not;
    		});
    
    	}
    
    	if ( qualifier.nodeType ) {
    		return jQuery.grep( elements, function( elem ) {
    			return ( elem === qualifier ) !== not;
    		});
    
    	}
    
    	if ( typeof qualifier === "string" ) {
    		if ( isSimple.test( qualifier ) ) {
    			return jQuery.filter( qualifier, elements, not );
    		}
    
    		qualifier = jQuery.filter( qualifier, elements );
    	}
    
    	return jQuery.grep( elements, function( elem ) {
    		return ( core_indexOf.call( qualifier, elem ) >= 0 ) !== not;
    	});
    }
    var rxhtmlTag = /<(?!area|br|col|embed|hr|img|input|link|meta|param)(([\w:]+)[^>]*)\/>/gi,
    	rtagName = /<([\w:]+)/,
    	rhtml = /<|&#?\w+;/,
    	rnoInnerhtml = /<(?:script|style|link)/i,
    	manipulation_rcheckableType = /^(?:checkbox|radio)$/i,
  • ¶

    checked="checked" or checked

    	rchecked = /checked\s*(?:[^=]|=\s*.checked.)/i,
    	rscriptType = /^$|\/(?:java|ecma)script/i,
    	rscriptTypeMasked = /^true\/(.*)/,
    	rcleanScript = /^\s*<!(?:\[CDATA\[|--)|(?:\]\]|--)>\s*$/g,
  • ¶

    We have to close these tags to support XHTML (#13200)

    	wrapMap = {
  • ¶

    Support: IE 9

    		option: [ 1, "<select multiple='multiple'>", "</select>" ],
    
    		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

    wrapMap.optgroup = wrapMap.option;
    
    wrapMap.tbody = wrapMap.tfoot = wrapMap.colgroup = wrapMap.caption = wrapMap.thead;
    wrapMap.th = wrapMap.td;
    
    jQuery.fn.extend({
    	text: function( value ) {
    		return jQuery.access( this, function( value ) {
    			return value === undefined ?
    				jQuery.text( this ) :
    				this.empty().append( ( this[ 0 ] && this[ 0 ].ownerDocument || document ).createTextNode( value ) );
    		}, null, value, arguments.length );
    	},
    
    	append: function() {
    		return this.domManip( arguments, function( elem ) {
    			if ( this.nodeType === 1 || this.nodeType === 11 || this.nodeType === 9 ) {
    				var target = manipulationTarget( this, elem );
    				target.appendChild( elem );
    			}
    		});
    	},
    
    	prepend: function() {
    		return this.domManip( 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 this.domManip( arguments, function( elem ) {
    			if ( this.parentNode ) {
    				this.parentNode.insertBefore( elem, this );
    			}
    		});
    	},
    
    	after: function() {
    		return this.domManip( arguments, function( elem ) {
    			if ( this.parentNode ) {
    				this.parentNode.insertBefore( elem, this.nextSibling );
    			}
    		});
    	},
  • ¶

    keepData is for internal use only--do not document

    	remove: function( selector, keepData ) {
    		var elem,
    			elems = selector ? jQuery.filter( selector, this ) : this,
    			i = 0;
    
    		for ( ; (elem = elems[i]) != null; i++ ) {
    			if ( !keepData && elem.nodeType === 1 ) {
    				jQuery.cleanData( getAll( elem ) );
    			}
    
    			if ( elem.parentNode ) {
    				if ( keepData && jQuery.contains( elem.ownerDocument, elem ) ) {
    					setGlobalEval( getAll( elem, "script" ) );
    				}
    				elem.parentNode.removeChild( elem );
    			}
    		}
    
    		return this;
    	},
    
    	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 jQuery.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 = value.replace( rxhtmlTag, "<$1></$2>" );
    
    				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
  • ¶

    Snapshot the DOM in case .domManip sweeps something relevant into its fragment

    			args = jQuery.map( this, function( elem ) {
    				return [ elem.nextSibling, elem.parentNode ];
    			}),
    			i = 0;
  • ¶

    Make the changes, replacing each context element with the new content

    		this.domManip( arguments, function( elem ) {
    			var next = args[ i++ ],
    				parent = args[ i++ ];
    
    			if ( parent ) {
  • ¶

    Don't use the snapshot next if it has moved (#13810)

    				if ( next && next.parentNode !== parent ) {
    					next = this.nextSibling;
    				}
    				jQuery( this ).remove();
    				parent.insertBefore( elem, next );
    			}
  • ¶

    Allow new content to include elements from the context set

    		}, true );
  • ¶

    Force removal if there was no new content (e.g., from empty arguments)

    		return i ? this : this.remove();
    	},
    
    	detach: function( selector ) {
    		return this.remove( selector, true );
    	},
    
    	domManip: function( args, callback, allowIntersection ) {
  • ¶

    Flatten any nested arrays

    		args = core_concat.apply( [], args );
    
    		var fragment, first, scripts, hasScripts, node, doc,
    			i = 0,
    			l = this.length,
    			set = this,
    			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" || jQuery.support.checkClone || !rchecked.test( value ) ) ) {
    			return this.each(function( index ) {
    				var self = set.eq( index );
    				if ( isFunction ) {
    					args[ 0 ] = value.call( this, index, self.html() );
    				}
    				self.domManip( args, callback, allowIntersection );
    			});
    		}
    
    		if ( l ) {
    			fragment = jQuery.buildFragment( args, this[ 0 ].ownerDocument, false, !allowIntersection && this );
    			first = fragment.firstChild;
    
    			if ( fragment.childNodes.length === 1 ) {
    				fragment = first;
    			}
    
    			if ( first ) {
    				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: QtWebKit jQuery.merge because corepush.apply(, arraylike) throws

    							jQuery.merge( scripts, getAll( node, "script" ) );
    						}
    					}
    
    					callback.call( this[ 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 || "" ) &&
    							!data_priv.access( node, "globalEval" ) && jQuery.contains( doc, node ) ) {
    
    							if ( node.src ) {
  • ¶

    Hope ajax is available...

    								jQuery._evalUrl( node.src );
    							} else {
    								jQuery.globalEval( node.textContent.replace( rcleanScript, "" ) );
    							}
    						}
    					}
    				}
    			}
    		}
    
    		return this;
    	}
    });
    
    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: QtWebKit .get() because corepush.apply(, arraylike) throws

    			core_push.apply( ret, elems.get() );
    		}
    
    		return this.pushStack( ret );
    	};
    });
    
    jQuery.extend({
    	clone: function( elem, dataAndEvents, deepDataAndEvents ) {
    		var i, l, srcElements, destElements,
    			clone = elem.cloneNode( true ),
    			inPage = jQuery.contains( elem.ownerDocument, elem );
  • ¶

    Support: IE >= 9 Fix Cloning issues

    		if ( !jQuery.support.noCloneChecked && ( elem.nodeType === 1 || elem.nodeType === 11 ) && !jQuery.isXMLDoc( elem ) ) {
  • ¶

    We eschew Sizzle here for performance reasons: http://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;
    	},
    
    	buildFragment: function( elems, context, scripts, selection ) {
    		var elem, tmp, tag, wrap, contains, j,
    			i = 0,
    			l = elems.length,
    			fragment = context.createDocumentFragment(),
    			nodes = [];
    
    		for ( ; i < l; i++ ) {
    			elem = elems[ i ];
    
    			if ( elem || elem === 0 ) {
  • ¶

    Add nodes directly

    				if ( jQuery.type( elem ) === "object" ) {
  • ¶

    Support: QtWebKit jQuery.merge because corepush.apply(, arraylike) throws

    					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 ] + elem.replace( rxhtmlTag, "<$1></$2>" ) + wrap[ 2 ];
  • ¶

    Descend through wrappers to the right content

    					j = wrap[ 0 ];
    					while ( j-- ) {
    						tmp = tmp.firstChild;
    					}
  • ¶

    Support: QtWebKit jQuery.merge because corepush.apply(, arraylike) throws

    					jQuery.merge( nodes, tmp.childNodes );
  • ¶

    Remember the top-level container

    					tmp = fragment.firstChild;
  • ¶

    Fixes #12346 Support: Webkit, IE

    					tmp.textContent = "";
    				}
    			}
    		}
  • ¶

    Remove wrapper from fragment

    		fragment.textContent = "";
    
    		i = 0;
    		while ( (elem = nodes[ i++ ]) ) {
  • ¶

    4087 - If origin and destination elements are the same, and this is

    that element, do not do anything

    			if ( selection && jQuery.inArray( elem, selection ) !== -1 ) {
    				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;
    	},
    
    	cleanData: function( elems ) {
    		var data, elem, events, type, key, j,
    			special = jQuery.event.special,
    			i = 0;
    
    		for ( ; (elem = elems[ i ]) !== undefined; i++ ) {
    			if ( Data.accepts( elem ) ) {
    				key = elem[ data_priv.expando ];
    
    				if ( key && (data = data_priv.cache[ key ]) ) {
    					events = Object.keys( data.events || {} );
    					if ( events.length ) {
    						for ( j = 0; (type = events[j]) !== undefined; j++ ) {
    							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 );
    							}
    						}
    					}
    					if ( data_priv.cache[ key ] ) {
  • ¶

    Discard any remaining private data

    						delete data_priv.cache[ key ];
    					}
    				}
    			}
  • ¶

    Discard any remaining user data

    			delete data_user.cache[ elem[ data_user.expando ] ];
    		}
    	},
    
    	_evalUrl: function( url ) {
    		return jQuery.ajax({
    			url: url,
    			type: "GET",
    			dataType: "script",
    			async: false,
    			global: false,
    			"throws": true
    		});
    	}
    });
  • ¶

    Support: 1.x compatibility Manipulating tables requires a tbody

    function manipulationTarget( elem, content ) {
    	return jQuery.nodeName( elem, "table" ) &&
    		jQuery.nodeName( content.nodeType === 1 ? content : content.firstChild, "tr" ) ?
    
    		elem.getElementsByTagName("tbody")[0] ||
    			elem.appendChild( elem.ownerDocument.createElement("tbody") ) :
    		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;
    }
  • ¶

    Mark scripts as having already been evaluated

    function setGlobalEval( elems, refElements ) {
    	var l = elems.length,
    		i = 0;
    
    	for ( ; i < l; i++ ) {
    		data_priv.set(
    			elems[ i ], "globalEval", !refElements || data_priv.get( refElements[ i ], "globalEval" )
    		);
    	}
    }
    
    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 ( data_priv.hasData( src ) ) {
    		pdataOld = data_priv.access( src );
    		pdataCur = data_priv.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 ] );
    				}
    			}
    		}
    	}
  • ¶
    1. Copy user data
    	if ( data_user.hasData( src ) ) {
    		udataOld = data_user.access( src );
    		udataCur = jQuery.extend( {}, udataOld );
    
    		data_user.set( dest, udataCur );
    	}
    }
    
    
    function getAll( context, tag ) {
    	var ret = context.getElementsByTagName ? context.getElementsByTagName( tag || "*" ) :
    			context.querySelectorAll ? context.querySelectorAll( tag || "*" ) :
    			[];
    
    	return tag === undefined || tag && jQuery.nodeName( context, tag ) ?
    		jQuery.merge( [ context ], ret ) :
    		ret;
    }
  • ¶

    Support: IE >= 9

    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" && manipulation_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;
    	}
    }
    jQuery.fn.extend({
    	wrapAll: function( html ) {
    		var wrap;
    
    		if ( jQuery.isFunction( html ) ) {
    			return this.each(function( i ) {
    				jQuery( this ).wrapAll( html.call(this, i) );
    			});
    		}
    
    		if ( 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() {
    		return this.parent().each(function() {
    			if ( !jQuery.nodeName( this, "body" ) ) {
    				jQuery( this ).replaceWith( this.childNodes );
    			}
    		}).end();
    	}
    });
    var curCSS, iframe,
  • ¶

    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]).+)/,
    	rmargin = /^margin/,
    	rnumsplit = new RegExp( "^(" + core_pnum + ")(.*)$", "i" ),
    	rnumnonpx = new RegExp( "^(" + core_pnum + ")(?!px)[a-z%]+$", "i" ),
    	rrelNum = new RegExp( "^([+-])=(" + core_pnum + ")", "i" ),
    	elemdisplay = { BODY: "block" },
    
    	cssShow = { position: "absolute", visibility: "hidden", display: "block" },
    	cssNormalTransform = {
    		letterSpacing: 0,
    		fontWeight: 400
    	},
    
    	cssExpand = [ "Top", "Right", "Bottom", "Left" ],
    	cssPrefixes = [ "Webkit", "O", "Moz", "ms" ];
  • ¶

    return a css property mapped to a potentially vendor prefixed property

    function vendorPropName( style, name ) {
  • ¶

    shortcut for names that are not vendor prefixed

    	if ( name in style ) {
    		return name;
    	}
  • ¶

    check for vendor prefixed names

    	var capName = name.charAt(0).toUpperCase() + name.slice(1),
    		origName = name,
    		i = cssPrefixes.length;
    
    	while ( i-- ) {
    		name = cssPrefixes[ i ] + capName;
    		if ( name in style ) {
    			return name;
    		}
    	}
    
    	return origName;
    }
    
    function isHidden( elem, el ) {
  • ¶

    isHidden might be called from jQuery#filter function; in that case, element will be second argument

    	elem = el || elem;
    	return jQuery.css( elem, "display" ) === "none" || !jQuery.contains( elem.ownerDocument, elem );
    }
  • ¶

    NOTE: we've included the "window" in window.getComputedStyle because jsdom on node.js will break without it.

    function getStyles( elem ) {
    	return window.getComputedStyle( elem, null );
    }
    
    function showHide( elements, show ) {
    	var display, elem, hidden,
    		values = [],
    		index = 0,
    		length = elements.length;
    
    	for ( ; index < length; index++ ) {
    		elem = elements[ index ];
    		if ( !elem.style ) {
    			continue;
    		}
    
    		values[ index ] = data_priv.get( elem, "olddisplay" );
    		display = elem.style.display;
    		if ( show ) {
  • ¶

    Reset the inline display of this element to learn if it is being hidden by cascaded rules or not

    			if ( !values[ index ] && display === "none" ) {
    				elem.style.display = "";
    			}
  • ¶

    Set elements which have been overridden with display: none in a stylesheet to whatever the default browser style is for such an element

    			if ( elem.style.display === "" && isHidden( elem ) ) {
    				values[ index ] = data_priv.access( elem, "olddisplay", css_defaultDisplay(elem.nodeName) );
    			}
    		} else {
    
    			if ( !values[ index ] ) {
    				hidden = isHidden( elem );
    
    				if ( display && display !== "none" || !hidden ) {
    					data_priv.set( elem, "olddisplay", hidden ? display : jQuery.css(elem, "display") );
    				}
    			}
    		}
    	}
  • ¶

    Set the display of most of the elements in a second loop to avoid the constant reflow

    	for ( index = 0; index < length; index++ ) {
    		elem = elements[ index ];
    		if ( !elem.style ) {
    			continue;
    		}
    		if ( !show || elem.style.display === "none" || elem.style.display === "" ) {
    			elem.style.display = show ? values[ index ] || "" : "none";
    		}
    	}
    
    	return elements;
    }
    
    jQuery.fn.extend({
    	css: function( name, value ) {
    		return jQuery.access( this, function( elem, name, value ) {
    			var styles, len,
    				map = {},
    				i = 0;
    
    			if ( jQuery.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 );
    	},
    	show: function() {
    		return showHide( this, true );
    	},
    	hide: function() {
    		return showHide( this );
    	},
    	toggle: function( state ) {
    		var bool = typeof state === "boolean";
    
    		return this.each(function() {
    			if ( bool ? state : isHidden( this ) ) {
    				jQuery( this ).show();
    			} else {
    				jQuery( this ).hide();
    			}
    		});
    	}
    });
    
    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: {
    		"columnCount": true,
    		"fillOpacity": true,
    		"fontWeight": true,
    		"lineHeight": true,
    		"opacity": 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: {
  • ¶

    normalize float css property

    		"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 ),
    			style = elem.style;
    
    		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( style, origName ) );
  • ¶

    gets hook for the prefixed version followed by the unprefixed version

    		hooks = jQuery.cssHooks[ name ] || jQuery.cssHooks[ origName ];
  • ¶

    Check if we're setting a value

    		if ( value !== undefined ) {
    			type = typeof value;
  • ¶

    convert relative number strings (+= or -=) to relative numbers. #7345

    			if ( type === "string" && (ret = rrelNum.exec( value )) ) {
    				value = ( ret[1] + 1 ) * ret[2] + parseFloat( jQuery.css( elem, name ) );
  • ¶

    Fixes bug #9237

    				type = "number";
    			}
  • ¶

    Make sure that NaN and null values aren't set. See: #7116

    			if ( value == null || type === "number" && isNaN( value ) ) {
    				return;
    			}
  • ¶

    If a number was passed in, add 'px' to the (except for certain CSS properties)

    			if ( type === "number" && !jQuery.cssNumber[ origName ] ) {
    				value += "px";
    			}
  • ¶

    Fixes #8908, it can be done more correctly by specifying setters in cssHooks, but it would mean to define eight (for every problematic property) identical functions

    			if ( !jQuery.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 ) {
    				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 );
  • ¶

    Make sure that we're working with the right name

    		name = jQuery.cssProps[ origName ] || ( jQuery.cssProps[ origName ] = vendorPropName( elem.style, origName ) );
  • ¶

    gets hook for the prefixed version followed by the unprefixed version

    		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 ];
    		}
  • ¶

    Return, converting to number if forced or a qualifier was provided and val looks numeric

    		if ( extra === "" || extra ) {
    			num = parseFloat( val );
    			return extra === true || jQuery.isNumeric( num ) ? num || 0 : val;
    		}
    		return val;
    	}
    });
    
    curCSS = function( elem, name, _computed ) {
    	var width, minWidth, maxWidth,
    		computed = _computed || getStyles( elem ),
  • ¶

    Support: IE9 getPropertyValue is only needed for .css('filter') in IE9, see #12537

    		ret = computed ? computed.getPropertyValue( name ) || computed[ name ] : undefined,
    		style = elem.style;
    
    	if ( computed ) {
    
    		if ( ret === "" && !jQuery.contains( elem.ownerDocument, elem ) ) {
    			ret = jQuery.style( elem, name );
    		}
  • ¶

    Support: Safari 5.1 A tribute to the "awesome hack by Dean Edwards" Safari 5.1.7 (at least) returns percentage for a larger set of values, but width seems to be reliably pixels this is against the CSSOM draft spec: http://dev.w3.org/csswg/cssom/#resolved-values

    		if ( 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;
    };
    
    
    function setPositiveNumber( elem, value, subtract ) {
    	var matches = rnumsplit.exec( value );
    	return matches ?
  • ¶

    Guard against undefined "subtract", e.g., when used as in cssHooks

    		Math.max( 0, matches[ 1 ] - ( subtract || 0 ) ) + ( matches[ 2 ] || "px" ) :
    		value;
    }
    
    function augmentWidthOrHeight( elem, name, extra, isBorderBox, styles ) {
    	var i = extra === ( isBorderBox ? "border" : "content" ) ?
  • ¶

    If we already have the right measurement, avoid augmentation

    		4 :
  • ¶

    Otherwise initialize for horizontal or vertical properties

    		name === "width" ? 1 : 0,
    
    		val = 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 offset property, which is equivalent to the border-box value

    	var valueIsBorderBox = true,
    		val = name === "width" ? elem.offsetWidth : elem.offsetHeight,
    		styles = getStyles( elem ),
    		isBorderBox = jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box";
  • ¶

    some non-html elements return undefined for offsetWidth, so check for null/undefined svg - https://bugzilla.mozilla.org/show_bug.cgi?id=649285 MathML - https://bugzilla.mozilla.org/show_bug.cgi?id=491668

    	if ( val <= 0 || val == null ) {
  • ¶

    Fall back to computed then uncomputed css if necessary

    		val = curCSS( elem, name, styles );
    		if ( val < 0 || val == null ) {
    			val = elem.style[ name ];
    		}
  • ¶

    Computed unit is not pixels. Stop here and return.

    		if ( rnumnonpx.test(val) ) {
    			return val;
    		}
  • ¶

    we need the check for style in case a browser which returns unreliable values for getComputedStyle silently falls back to the reliable elem.style

    		valueIsBorderBox = isBorderBox && ( jQuery.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";
    }
  • ¶

    Try to determine the default display value of an element

    function css_defaultDisplay( nodeName ) {
    	var doc = document,
    		display = elemdisplay[ nodeName ];
    
    	if ( !display ) {
    		display = actualDisplay( nodeName, doc );
  • ¶

    If the simple way fails, read from inside an iframe

    		if ( display === "none" || !display ) {
  • ¶

    Use the already-created iframe if possible

    			iframe = ( iframe ||
    				jQuery("<iframe frameborder='0' width='0' height='0'/>")
    				.css( "cssText", "display:block !important" )
    			).appendTo( doc.documentElement );
  • ¶

    Always write a new HTML skeleton so Webkit and Firefox don't choke on reuse

    			doc = ( iframe[0].contentWindow || iframe[0].contentDocument ).document;
    			doc.write("<!doctype html><html><body>");
    			doc.close();
    
    			display = actualDisplay( nodeName, doc );
    			iframe.detach();
    		}
  • ¶

    Store the correct default display

    		elemdisplay[ nodeName ] = display;
    	}
    
    	return display;
    }
  • ¶

    Called ONLY from within css_defaultDisplay

    function actualDisplay( name, doc ) {
    	var elem = jQuery( doc.createElement( name ) ).appendTo( doc.body ),
    		display = jQuery.css( elem[0], "display" );
    	elem.remove();
    	return display;
    }
    
    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 however, it must have a current display style that would benefit from this

    				return elem.offsetWidth === 0 && rdisplayswap.test( jQuery.css( elem, "display" ) ) ?
    					jQuery.swap( elem, cssShow, function() {
    						return getWidthOrHeight( elem, name, extra );
    					}) :
    					getWidthOrHeight( elem, name, extra );
    			}
    		},
    
    		set: function( elem, value, extra ) {
    			var styles = extra && getStyles( elem );
    			return setPositiveNumber( elem, value, extra ?
    				augmentWidthOrHeight(
    					elem,
    					name,
    					extra,
    					jQuery.support.boxSizing && jQuery.css( elem, "boxSizing", false, styles ) === "border-box",
    					styles
    				) : 0
    			);
    		}
    	};
    });
  • ¶

    These hooks cannot be added until DOM ready because the support test for it is not run until after DOM ready

    jQuery(function() {
  • ¶

    Support: Android 2.3

    	if ( !jQuery.support.reliableMarginRight ) {
    		jQuery.cssHooks.marginRight = {
    			get: function( elem, computed ) {
    				if ( computed ) {
  • ¶

    Support: Android 2.3 WebKit Bug 13343 - getComputedStyle returns wrong value for margin-right Work around by temporarily setting element display to inline-block

    					return jQuery.swap( elem, { "display": "inline-block" },
    						curCSS, [ elem, "marginRight" ] );
    				}
    			}
    		};
    	}
  • ¶

    Webkit bug: https://bugs.webkit.org/show_bug.cgi?id=29084 getComputedStyle returns percent when specified for top/left/bottom/right rather than make the css module depend on the offset module, we just check for it here

    	if ( !jQuery.support.pixelPosition && jQuery.fn.position ) {
    		jQuery.each( [ "top", "left" ], function( i, prop ) {
    			jQuery.cssHooks[ prop ] = {
    				get: 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;
    					}
    				}
    			};
    		});
    	}
    
    });
    
    if ( jQuery.expr && jQuery.expr.filters ) {
    	jQuery.expr.filters.hidden = function( elem ) {
  • ¶

    Support: Opera <= 12.12 Opera reports offsetWidths and offsetHeights less than zero on some elements

    		return elem.offsetWidth <= 0 && elem.offsetHeight <= 0;
    	};
    
    	jQuery.expr.filters.visible = function( elem ) {
    		return !jQuery.expr.filters.hidden( elem );
    	};
    }
  • ¶

    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;
    	}
    });
    var r20 = /%20/g,
    	rbracket = /\[\]$/,
    	rCRLF = /\r?\n/g,
    	rsubmitterTypes = /^(?:submit|button|image|reset|file)$/i,
    	rsubmittable = /^(?:input|select|textarea|keygen)/i;
    
    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 || !manipulation_rcheckableType.test( type ) );
    		})
    		.map(function( i, elem ){
    			var val = jQuery( this ).val();
    
    			return val == null ?
    				null :
    				jQuery.isArray( val ) ?
    					jQuery.map( val, function( val ){
    						return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
    					}) :
    					{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
    		}).get();
    	}
    });
  • ¶

    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, value ) {
  • ¶

    If value is a function, invoke it and return its value

    			value = jQuery.isFunction( value ) ? value() : ( value == null ? "" : value );
    			s[ s.length ] = encodeURIComponent( key ) + "=" + encodeURIComponent( value );
    		};
  • ¶

    Set traditional to true for jQuery <= 1.3.2 behavior.

    	if ( traditional === undefined ) {
    		traditional = jQuery.ajaxSettings && jQuery.ajaxSettings.traditional;
    	}
  • ¶

    If an array was passed in, assume that it is an array of form elements.

    	if ( jQuery.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( "&" ).replace( r20, "+" );
    };
    
    function buildParams( prefix, obj, traditional, add ) {
    	var name;
    
    	if ( jQuery.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" ? 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 );
    	}
    }
    jQuery.each( ("blur focus focusin focusout load resize scroll unload click dblclick " +
    	"mousedown mouseup mousemove mouseover mouseout mouseenter mouseleave " +
    	"change select submit keydown keypress keyup error 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 );
    	},
    
    	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 );
    	}
    });
    var
  • ¶

    Document location

    	ajaxLocParts,
    	ajaxLocation,
    
    	ajax_nonce = jQuery.now(),
    
    	ajax_rquery = /\?/,
    	rhash = /#.*$/,
    	rts = /([?&])_=[^&]*/,
    	rheaders = /^(.*?):[ \t]*([^\r\n]*)$/mg,
  • ¶

    7653, #8125, #8152: local protocol detection

    	rlocalProtocol = /^(?:about|app|app-storage|.+-extension|file|res|widget):$/,
    	rnoContent = /^(?:GET|HEAD)$/,
    	rprotocol = /^\/\//,
    	rurl = /^([\w.+-]+:)(?:\/\/([^\/?#:]*)(?::(\d+)|)|)/,
  • ¶

    Keep a copy of the old load method

    	_load = jQuery.fn.load,
    
    	/* 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("*");
  • ¶

    8138, IE may throw an exception when accessing

    a field from window.location if document.domain has been set

    try {
    	ajaxLocation = location.href;
    } catch( e ) {
  • ¶

    Use the href attribute of an A element since IE will modify it given document.location

    	ajaxLocation = document.createElement( "a" );
    	ajaxLocation.href = "";
    	ajaxLocation = ajaxLocation.href;
    }
  • ¶

    Segment location into parts

    ajaxLocParts = rurl.exec( ajaxLocation.toLowerCase() ) || [];
  • ¶

    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( core_rnotwhite ) || [];
    
    		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;
    }
    
    jQuery.fn.load = function( url, params, callback ) {
    	if ( typeof url !== "string" && _load ) {
    		return _load.apply( this, arguments );
    	}
    
    	var selector, type, response,
    		self = this,
    		off = url.indexOf(" ");
    
    	if ( off >= 0 ) {
    		selector = 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

    			type: type,
    			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 );
    
    		}).complete( callback && function( jqXHR, status ) {
    			self.each( callback, 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.extend({
  • ¶

    Counter for holding the number of active queries

    	active: 0,
  • ¶

    Last-Modified header cache for next request

    	lastModified: {},
    	etag: {},
    
    	ajaxSettings: {
    		url: ajaxLocation,
    		type: "GET",
    		isLocal: rlocalProtocol.test( ajaxLocParts[ 1 ] ),
    		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: /xml/,
    			html: /html/,
    			json: /json/
    		},
    
    		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": jQuery.parseJSON,
  • ¶

    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,
  • ¶

    Cross-domain detection vars

    			parts,
  • ¶

    To know if global events are to be dispatched

    			fireGlobals,
  • ¶

    Loop variable

    			i,
  • ¶

    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 = {},
  • ¶

    The jqXHR state

    			state = 0,
  • ¶

    Default abort message

    			strAbort = "canceled",
  • ¶

    Fake xhr

    			jqXHR = {
    				readyState: 0,
  • ¶

    Builds headers hashtable if needed

    				getResponseHeader: function( key ) {
    					var match;
    					if ( state === 2 ) {
    						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 state === 2 ? responseHeadersString : null;
    				},
  • ¶

    Caches the header

    				setRequestHeader: function( name, value ) {
    					var lname = name.toLowerCase();
    					if ( !state ) {
    						name = requestHeadersNames[ lname ] = requestHeadersNames[ lname ] || name;
    						requestHeaders[ name ] = value;
    					}
    					return this;
    				},
  • ¶

    Overrides response content-type header

    				overrideMimeType: function( type ) {
    					if ( !state ) {
    						s.mimeType = type;
    					}
    					return this;
    				},
  • ¶

    Status-dependent callbacks

    				statusCode: function( map ) {
    					var code;
    					if ( map ) {
    						if ( state < 2 ) {
    							for ( code in map ) {
  • ¶

    Lazy-add the new callback in a way that preserves old ones

    								statusCode[ code ] = [ statusCode[ code ], map[ code ] ];
    							}
    						} else {
  • ¶

    Execute the appropriate callbacks

    							jqXHR.always( map[ jqXHR.status ] );
    						}
    					}
    					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 ).complete = completeDeferred.add;
    		jqXHR.success = jqXHR.done;
    		jqXHR.error = jqXHR.fail;
  • ¶

    Remove hash character (#7531: and string promotion) 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 || ajaxLocation ) + "" ).replace( rhash, "" )
    			.replace( rprotocol, ajaxLocParts[ 1 ] + "//" );
  • ¶

    Alias method option to type as per ticket #12004

    		s.type = options.method || options.type || s.method || s.type;
  • ¶

    Extract dataTypes list

    		s.dataTypes = jQuery.trim( s.dataType || "*" ).toLowerCase().match( core_rnotwhite ) || [""];
  • ¶

    A cross-domain request is in order when we have a protocol:host:port mismatch

    		if ( s.crossDomain == null ) {
    			parts = rurl.exec( s.url.toLowerCase() );
    			s.crossDomain = !!( parts &&
    				( parts[ 1 ] !== ajaxLocParts[ 1 ] || parts[ 2 ] !== ajaxLocParts[ 2 ] ||
    					( parts[ 3 ] || ( parts[ 1 ] === "http:" ? "80" : "443" ) ) !==
    						( ajaxLocParts[ 3 ] || ( ajaxLocParts[ 1 ] === "http:" ? "80" : "443" ) ) )
    			);
    		}
  • ¶

    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 ( state === 2 ) {
    			return jqXHR;
    		}
  • ¶

    We can fire global events as of now if asked to

    		fireGlobals = 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

    		cacheURL = s.url;
  • ¶

    More options handling for requests with no content

    		if ( !s.hasContent ) {
  • ¶

    If data is available, append data to url

    			if ( s.data ) {
    				cacheURL = ( s.url += ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + s.data );
  • ¶

    9682: remove data so that it's not used in an eventual retry

    				delete s.data;
    			}
  • ¶

    Add anti-cache in url if needed

    			if ( s.cache === false ) {
    				s.url = rts.test( cacheURL ) ?
  • ¶

    If there is already a '_' parameter, set its value

    					cacheURL.replace( rts, "$1_=" + ajax_nonce++ ) :
  • ¶

    Otherwise add one to the end

    					cacheURL + ( ajax_rquery.test( cacheURL ) ? "&" : "?" ) + "_=" + ajax_nonce++;
    			}
    		}
  • ¶

    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 || state === 2 ) ) {
  • ¶

    Abort if not done already and return

    			return jqXHR.abort();
    		}
  • ¶

    aborting is no longer a cancellation

    		strAbort = "abort";
  • ¶

    Install callbacks on deferreds

    		for ( i in { success: 1, error: 1, complete: 1 } ) {
    			jqXHR[ i ]( s[ i ] );
    		}
  • ¶

    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 ] );
    			}
  • ¶

    Timeout

    			if ( s.async && s.timeout > 0 ) {
    				timeoutTimer = setTimeout(function() {
    					jqXHR.abort("timeout");
    				}, s.timeout );
    			}
    
    			try {
    				state = 1;
    				transport.send( requestHeaders, done );
    			} catch ( e ) {
  • ¶

    Propagate exception as error if not done

    				if ( state < 2 ) {
    					done( -1, e );
  • ¶

    Simply rethrow otherwise

    				} else {
    					throw e;
    				}
    			}
    		}
  • ¶

    Callback for when everything is done

    		function done( status, nativeStatusText, responses, headers ) {
    			var isSuccess, success, error, response, modified,
    				statusText = nativeStatusText;
  • ¶

    Called once

    			if ( state === 2 ) {
    				return;
    			}
  • ¶

    State is "done" now

    			state = 2;
  • ¶

    Clear timeout if it exists

    			if ( timeoutTimer ) {
    				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 {
  • ¶

    We extract error from statusText then normalize statusText and status 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;
    		}
    
    		return jQuery.ajax({
    			url: url,
    			type: method,
    			dataType: type,
    			data: data,
    			success: callback
    		});
    	};
    });
    
    /* 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 };
    }
  • ¶

    Install script dataType

    jQuery.ajaxSetup({
    	accepts: {
    		script: "text/javascript, application/javascript, application/ecmascript, application/x-ecmascript"
    	},
    	contents: {
    		script: /(?:java|ecma)script/
    	},
    	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({
    					async: true,
    					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 );
    						}
    					}
    				);
    				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 + "_" + ( ajax_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") && 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 += ( ajax_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() {
  • ¶

    Restore preexisting value

    			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";
    	}
    });
    jQuery.ajaxSettings.xhr = function() {
    	try {
    		return new XMLHttpRequest();
    	} catch( e ) {}
    };
    
    var xhrSupported = jQuery.ajaxSettings.xhr(),
    	xhrSuccessStatus = {
  • ¶

    file protocol always yields status code 0, assume 200

    		0: 200,
  • ¶

    Support: IE9

    1450: sometimes IE returns 1223 when it should be 204

    		1223: 204
    	},
  • ¶

    Support: IE9 We need to keep track of outbound xhr and abort them manually because IE is not smart enough to do it all by itself

    	xhrId = 0,
    	xhrCallbacks = {};
    
    if ( window.ActiveXObject ) {
    	jQuery( window ).on( "unload", function() {
    		for( var key in xhrCallbacks ) {
    			xhrCallbacks[ key ]();
    		}
    		xhrCallbacks = undefined;
    	});
    }
    
    jQuery.support.cors = !!xhrSupported && ( "withCredentials" in xhrSupported );
    jQuery.support.ajax = xhrSupported = !!xhrSupported;
    
    jQuery.ajaxTransport(function( options ) {
    	var callback;
  • ¶

    Cross domain only allowed if supported through XMLHttpRequest

    	if ( jQuery.support.cors || xhrSupported && !options.crossDomain ) {
    		return {
    			send: function( headers, complete ) {
    				var i, id,
    					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 ) {
    							delete xhrCallbacks[ id ];
    							callback = xhr.onload = xhr.onerror = null;
    							if ( type === "abort" ) {
    								xhr.abort();
    							} else if ( type === "error" ) {
    								complete(
  • ¶

    file protocol always yields status 0, assume 404

    									xhr.status || 404,
    									xhr.statusText
    								);
    							} else {
    								complete(
    									xhrSuccessStatus[ xhr.status ] || xhr.status,
    									xhr.statusText,
  • ¶

    Support: IE9

    11426: When requesting binary data, IE9 will throw an exception

    on any attempt to access responseText

    									typeof xhr.responseText === "string" ? {
    										text: xhr.responseText
    									} : undefined,
    									xhr.getAllResponseHeaders()
    								);
    							}
    						}
    					};
    				};
  • ¶

    Listen to events

    				xhr.onload = callback();
    				xhr.onerror = callback("error");
  • ¶

    Create the abort callback

    				callback = xhrCallbacks[( id = xhrId++ )] = callback("abort");
  • ¶

    Do send the request This may raise an exception which is actually handled in jQuery.ajax (so no try/catch here)

    				xhr.send( options.hasContent && options.data || null );
    			},
    			abort: function() {
    				if ( callback ) {
    					callback();
    				}
    			}
    		};
    	}
    });
    var fxNow, timerId,
    	rfxtypes = /^(?:toggle|show|hide)$/,
    	rfxnum = new RegExp( "^(?:([+-])=|)(" + core_pnum + ")([a-z%]*)$", "i" ),
    	rrun = /queueHooks$/,
    	animationPrefilters = [ defaultPrefilter ],
    	tweeners = {
    		"*": [function( prop, value ) {
    			var tween = this.createTween( prop, value ),
    				target = tween.cur(),
    				parts = rfxnum.exec( value ),
    				unit = parts && parts[ 3 ] || ( jQuery.cssNumber[ prop ] ? "" : "px" ),
  • ¶

    Starting value computation is required for potential unit mismatches

    				start = ( jQuery.cssNumber[ prop ] || unit !== "px" && +target ) &&
    					rfxnum.exec( jQuery.css( tween.elem, prop ) ),
    				scale = 1,
    				maxIterations = 20;
    
    			if ( start && start[ 3 ] !== unit ) {
  • ¶

    Trust units reported by jQuery.css

    				unit = unit || start[ 3 ];
  • ¶

    Make sure we update the tween properties later on

    				parts = parts || [];
  • ¶

    Iteratively approximate from a nonzero starting point

    				start = +target || 1;
    
    				do {
  • ¶

    If previous iteration zeroed out, double until we get something Use a string for doubling factor so we don't accidentally see scale as unchanged below

    					scale = scale || ".5";
  • ¶

    Adjust and apply

    					start = start / scale;
    					jQuery.style( tween.elem, prop, start + unit );
  • ¶

    Update scale, tolerating zero or NaN from tween.cur() And breaking the loop if scale is unchanged or perfect, or if we've just had enough

    				} while ( scale !== (scale = tween.cur() / target) && scale !== 1 && --maxIterations );
    			}
  • ¶

    Update tween properties

    			if ( parts ) {
    				tween.unit = unit;
    				tween.start = +start || +target || 0;
  • ¶

    If a +=/-= token was provided, we're doing a relative animation

    				tween.end = parts[ 1 ] ?
    					start + ( parts[ 1 ] + 1 ) * parts[ 2 ] :
    					+parts[ 2 ];
    			}
    
    			return tween;
    		}]
    	};
  • ¶

    Animations created synchronously will run synchronously

    function createFxNow() {
    	setTimeout(function() {
    		fxNow = undefined;
    	});
    	return ( fxNow = jQuery.now() );
    }
    
    function createTween( value, prop, animation ) {
    	var tween,
    		collection = ( tweeners[ prop ] || [] ).concat( 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 Animation( elem, properties, options ) {
    	var result,
    		stopped,
    		index = 0,
    		length = animationPrefilters.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 ),
  • ¶

    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 ( percent < 1 && length ) {
    				return remaining;
    			} else {
    				deferred.resolveWith( elem, [ animation ] );
    				return false;
    			}
    		},
    		animation = deferred.promise({
    			elem: elem,
    			props: jQuery.extend( {}, properties ),
    			opts: jQuery.extend( true, { specialEasing: {} }, 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.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 = animationPrefilters[ index ].call( animation, elem, props, animation.opts );
    		if ( result ) {
    			return result;
    		}
    	}
    
    	jQuery.map( props, createTween, animation );
    
    	if ( jQuery.isFunction( animation.opts.start ) ) {
    		animation.opts.start.call( elem, animation );
    	}
    
    	jQuery.fx.timer(
    		jQuery.extend( tick, {
    			elem: elem,
    			anim: animation,
    			queue: animation.opts.queue
    		})
    	);
  • ¶

    attach callbacks from options

    	return animation.progress( animation.opts.progress )
    		.done( animation.opts.done, animation.opts.complete )
    		.fail( animation.opts.fail )
    		.always( animation.opts.always );
    }
    
    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 ( jQuery.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 wont overwrite keys already present. also - reusing 'index' from above 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;
    		}
    	}
    }
    
    jQuery.Animation = jQuery.extend( Animation, {
    
    	tweener: function( props, callback ) {
    		if ( jQuery.isFunction( props ) ) {
    			callback = props;
    			props = [ "*" ];
    		} else {
    			props = props.split(" ");
    		}
    
    		var prop,
    			index = 0,
    			length = props.length;
    
    		for ( ; index < length ; index++ ) {
    			prop = props[ index ];
    			tweeners[ prop ] = tweeners[ prop ] || [];
    			tweeners[ prop ].unshift( callback );
    		}
    	},
    
    	prefilter: function( callback, prepend ) {
    		if ( prepend ) {
    			animationPrefilters.unshift( callback );
    		} else {
    			animationPrefilters.push( callback );
    		}
    	}
    });
    
    function defaultPrefilter( elem, props, opts ) {
    	/* jshint validthis: true */
    	var prop, value, toggle, tween, hooks, oldfire,
    		anim = this,
    		orig = {},
    		style = elem.style,
    		hidden = elem.nodeType && isHidden( elem ),
    		dataShow = data_priv.get( elem, "fxshow" );
  • ¶

    handle queue: false promises

    	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() {
  • ¶

    doing this makes sure that the complete handler will be called before this completes

    			anim.always(function() {
    				hooks.unqueued--;
    				if ( !jQuery.queue( elem, "fx" ).length ) {
    					hooks.empty.fire();
    				}
    			});
    		});
    	}
  • ¶

    height/width overflow pass

    	if ( elem.nodeType === 1 && ( "height" in props || "width" in props ) ) {
  • ¶

    Make sure that nothing sneaks out Record all 3 overflow attributes because IE9-10 do not change the overflow attribute when overflowX and overflowY are set to the same value

    		opts.overflow = [ style.overflow, style.overflowX, style.overflowY ];
  • ¶

    Set display property to inline-block for height/width animations on inline elements that are having width/height animated

    		if ( jQuery.css( elem, "display" ) === "inline" &&
    				jQuery.css( elem, "float" ) === "none" ) {
    
    			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 ];
    		});
    	}
  • ¶

    show/hide pass

    	for ( prop in props ) {
    		value = props[ prop ];
    		if ( rfxtypes.exec( value ) ) {
    			delete props[ prop ];
    			toggle = toggle || value === "toggle";
    			if ( value === ( hidden ? "hide" : "show" ) ) {
  • ¶

    If there is dataShow left over from a stopped hide or show and we are going to proceed with show, we should pretend to be hidden

    				if ( value === "show" && dataShow && dataShow[ prop ] !== undefined ) {
    					hidden = true;
    				} else {
    					continue;
    				}
    			}
    			orig[ prop ] = dataShow && dataShow[ prop ] || jQuery.style( elem, prop );
    		}
    	}
    
    	if ( !jQuery.isEmptyObject( orig ) ) {
    		if ( dataShow ) {
    			if ( "hidden" in dataShow ) {
    				hidden = dataShow.hidden;
    			}
    		} else {
    			dataShow = data_priv.access( elem, "fxshow", {} );
    		}
  • ¶

    store state if its toggle - enables .stop().toggle() to "reverse"

    		if ( toggle ) {
    			dataShow.hidden = !hidden;
    		}
    		if ( hidden ) {
    			jQuery( elem ).show();
    		} else {
    			anim.done(function() {
    				jQuery( elem ).hide();
    			});
    		}
    		anim.done(function() {
    			var prop;
    
    			data_priv.remove( elem, "fxshow" );
    			for ( prop in orig ) {
    				jQuery.style( elem, prop, orig[ prop ] );
    			}
    		});
    		for ( prop in orig ) {
    			tween = createTween( hidden ? dataShow[ prop ] : 0, prop, anim );
    
    			if ( !( prop in dataShow ) ) {
    				dataShow[ prop ] = tween.start;
    				if ( hidden ) {
    					tween.end = tween.start;
    					tween.start = prop === "width" || prop === "height" ? 1 : 0;
    				}
    			}
    		}
    	}
    }
    
    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 || "swing";
    		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;
    
    			if ( tween.elem[ tween.prop ] != null &&
    				(!tween.elem.style || 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 so, 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 its available and use plain properties where available

    			if ( jQuery.fx.step[ tween.prop ] ) {
    				jQuery.fx.step[ tween.prop ]( tween );
    			} else if ( tween.elem.style && ( 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: IE9 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.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 );
    	};
    });
    
    jQuery.fn.extend({
    	fadeTo: function( speed, to, easing, callback ) {
  • ¶

    show any hidden elements after setting opacity to 0

    		return this.filter( isHidden ).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 );
    				doAnimation.finish = function() {
    					anim.stop( true );
    				};
  • ¶

    Empty animations, or finishing resolves immediately

    				if ( empty || data_priv.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 = data_priv.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 = data_priv.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.cur && hooks.cur.finish ) {
    				hooks.cur.finish.call( this );
    			}
  • ¶

    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;
    		});
    	}
    });
  • ¶

    Generate parameters to create a standard animation

    function genFx( type, includeWidth ) {
    	var which,
    		attrs = { height: type },
    		i = 0;
  • ¶

    if we include width, step value is 1 to do all cssExpand values, if we don't include width, 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;
    }
  • ¶

    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.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
    	};
    
    	opt.duration = jQuery.fx.off ? 0 : typeof opt.duration === "number" ? opt.duration :
    		opt.duration in jQuery.fx.speeds ? jQuery.fx.speeds[ 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.easing = {
    	linear: function( p ) {
    		return p;
    	},
    	swing: function( p ) {
    		return 0.5 - Math.cos( p*Math.PI ) / 2;
    	}
    };
    
    jQuery.timers = [];
    jQuery.fx = Tween.prototype.init;
    jQuery.fx.tick = function() {
    	var timer,
    		timers = jQuery.timers,
    		i = 0;
    
    	fxNow = jQuery.now();
    
    	for ( ; i < timers.length; i++ ) {
    		timer = timers[ i ];
  • ¶

    Checks the timer has not already been removed

    		if ( !timer() && timers[ i ] === timer ) {
    			timers.splice( i--, 1 );
    		}
    	}
    
    	if ( !timers.length ) {
    		jQuery.fx.stop();
    	}
    	fxNow = undefined;
    };
    
    jQuery.fx.timer = function( timer ) {
    	if ( timer() && jQuery.timers.push( timer ) ) {
    		jQuery.fx.start();
    	}
    };
    
    jQuery.fx.interval = 13;
    
    jQuery.fx.start = function() {
    	if ( !timerId ) {
    		timerId = setInterval( jQuery.fx.tick, jQuery.fx.interval );
    	}
    };
    
    jQuery.fx.stop = function() {
    	clearInterval( timerId );
    	timerId = null;
    };
    
    jQuery.fx.speeds = {
    	slow: 600,
    	fast: 200,
  • ¶

    Default speed

    	_default: 400
    };
  • ¶

    Back Compat <1.8 extension point

    jQuery.fx.step = {};
    
    if ( jQuery.expr && jQuery.expr.filters ) {
    	jQuery.expr.filters.animated = function( elem ) {
    		return jQuery.grep(jQuery.timers, function( fn ) {
    			return elem === fn.elem;
    		}).length;
    	};
    }
    jQuery.fn.offset = function( options ) {
    	if ( arguments.length ) {
    		return options === undefined ?
    			this :
    			this.each(function( i ) {
    				jQuery.offset.setOffset( this, options, i );
    			});
    	}
    
    	var docElem, win,
    		elem = this[ 0 ],
    		box = { top: 0, left: 0 },
    		doc = elem && elem.ownerDocument;
    
    	if ( !doc ) {
    		return;
    	}
    
    	docElem = doc.documentElement;
  • ¶

    Make sure it's not a disconnected DOM node

    	if ( !jQuery.contains( docElem, elem ) ) {
    		return box;
    	}
  • ¶

    If we don't have gBCR, just use 0,0 rather than error BlackBerry 5, iOS 3 (original iPhone)

    	if ( typeof elem.getBoundingClientRect !== core_strundefined ) {
    		box = elem.getBoundingClientRect();
    	}
    	win = getWindow( doc );
    	return {
    		top: box.top + win.pageYOffset - docElem.clientTop,
    		left: box.left + win.pageXOffset - docElem.clientLeft
    	};
    };
    
    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 ) ) {
    			options = options.call( elem, i, 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({
    
    	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 it's only offset parent

    		if ( jQuery.css( elem, "position" ) === "fixed" ) {
  • ¶

    We assume that getBoundingClientRect is available when computed position is fixed

    			offset = elem.getBoundingClientRect();
    
    		} else {
  • ¶

    Get real offsetParent

    			offsetParent = this.offsetParent();
  • ¶

    Get correct offsets

    			offset = this.offset();
    			if ( !jQuery.nodeName( offsetParent[ 0 ], "html" ) ) {
    				parentOffset = offsetParent.offset();
    			}
  • ¶

    Add offsetParent borders

    			parentOffset.top += jQuery.css( offsetParent[ 0 ], "borderTopWidth", true );
    			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 )
    		};
    	},
    
    	offsetParent: function() {
    		return this.map(function() {
    			var offsetParent = this.offsetParent || docElem;
    
    			while ( offsetParent && ( !jQuery.nodeName( offsetParent, "html" ) && jQuery.css( offsetParent, "position") === "static" ) ) {
    				offsetParent = offsetParent.offsetParent;
    			}
    
    			return offsetParent || docElem;
    		});
    	}
    });
  • ¶

    Create scrollLeft and scrollTop methods

    jQuery.each( {scrollLeft: "pageXOffset", scrollTop: "pageYOffset"}, function( method, prop ) {
    	var top = "pageYOffset" === prop;
    
    	jQuery.fn[ method ] = function( val ) {
    		return jQuery.access( this, function( elem, method, val ) {
    			var win = getWindow( elem );
    
    			if ( val === undefined ) {
    				return win ? win[ prop ] : elem[ method ];
    			}
    
    			if ( win ) {
    				win.scrollTo(
    					!top ? val : window.pageXOffset,
    					top ? val : window.pageYOffset
    				);
    
    			} else {
    				elem[ method ] = val;
    			}
    		}, method, val, arguments.length, null );
    	};
    });
    
    function getWindow( elem ) {
    	return jQuery.isWindow( elem ) ? elem : elem.nodeType === 9 && elem.defaultView;
    }
  • ¶

    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 jQuery.access( this, function( elem, type, value ) {
    				var doc;
    
    				if ( jQuery.isWindow( elem ) ) {
  • ¶

    As of 5/8/2012 this will yield incorrect results for Mobile Safari, but there isn't a whole lot we can do. See pull request at this URL for discussion: https://github.com/jquery/jquery/pull/764

    					return 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, null );
    		};
    	});
    });
  • ¶

    Limit scope pollution from any deprecated API (function() {

    The number of elements contained in the matched element set

    jQuery.fn.size = function() {
    	return this.length;
    };
    
    jQuery.fn.andSelf = jQuery.fn.addBack;
  • ¶

    })();

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

    Expose jQuery as module.exports in loaders that implement the Node module pattern (including browserify). Do not create the global, since the user will be storing it themselves locally, and globals are frowned upon in the Node module world.

    	module.exports = jQuery;
    } else {
  • ¶

    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.

    	if ( typeof define === "function" && define.amd ) {
    		define( "jquery", [], function () { return jQuery; } );
    	}
    }
  • ¶

    If there is a window object, that at least has a document property, define jQuery and $ identifiers

    if ( typeof window === "object" && typeof window.document === "object" ) {
    	window.jQuery = window.$ = jQuery;
    }
    
    })( window );