2 * jQuery @VERSION - New Wave Javascript
4 * Copyright (c) 2007 John Resig (jquery.com)
5 * Dual licensed under the MIT (MIT-LICENSE.txt)
6 * and GPL (GPL-LICENSE.txt) licenses.
13 * Create a new jQuery Object
18 * @param String|Function|Element|Array<Element>|jQuery a selector
19 * @param jQuery|Element|Array<Element> c context
22 var jQuery = window.jQuery = function(a,c) {
23 // If the context is global, return a new object
24 if ( window == this || !this.init )
25 return new jQuery(a,c);
27 return this.init(a,c);
30 // Map over the $ in case of overwrite
31 if ( typeof $ != "undefined" )
34 // Map the jQuery namespace to the '$' one
37 var quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#(\w+)$/;
40 * This function accepts a string containing a CSS or
41 * basic XPath selector which is then used to match a set of elements.
43 * The core functionality of jQuery centers around this function.
44 * Everything in jQuery is based upon this, or uses this in some way.
45 * The most basic use of this function is to pass in an expression
46 * (usually consisting of CSS or XPath), which then finds all matching
49 * By default, if no context is specified, $() looks for DOM elements within the context of the
50 * current HTML document. If you do specify a context, such as a DOM
51 * element or jQuery object, the expression will be matched against
52 * the contents of that context.
54 * See [[DOM/Traversing/Selectors]] for the allowed CSS/XPath syntax for expressions.
56 * @example $("div > p")
57 * @desc Finds all p elements that are children of a div element.
58 * @before <p>one</p> <div><p>two</p></div> <p>three</p>
59 * @result [ <p>two</p> ]
61 * @example $("input:radio", document.forms[0])
62 * @desc Searches for all inputs of type radio within the first form in the document
64 * @example $("div", xml.responseXML)
65 * @desc This finds all div elements within the specified XML document.
68 * @param String expr An expression to search with
69 * @param Element|jQuery context (optional) A DOM Element, Document or jQuery to use as context
73 * @see $(Element<Array>)
77 * Create DOM elements on-the-fly from the provided String of raw HTML.
79 * @example $("<div><p>Hello</p></div>").appendTo("body")
80 * @desc Creates a div element (and all of its contents) dynamically,
81 * and appends it to the body element. Internally, an
82 * element is created and its innerHTML property set to the given markup.
83 * It is therefore both quite flexible and limited.
86 * @param String html A string of HTML to create on the fly.
89 * @see appendTo(String)
93 * Wrap jQuery functionality around a single or multiple DOM Element(s).
95 * This function also accepts XML Documents and Window objects
96 * as valid arguments (even though they are not DOM Elements).
98 * @example $(document.body).css( "background", "black" );
99 * @desc Sets the background color of the page to black.
101 * @example $( myForm.elements ).hide()
102 * @desc Hides all the input elements within a form
105 * @param Element|Array<Element> elems DOM element(s) to be encapsulated by a jQuery object.
111 * A shorthand for $(document).ready(), allowing you to bind a function
112 * to be executed when the DOM document has finished loading. This function
113 * behaves just like $(document).ready(), in that it should be used to wrap
114 * other $() operations on your page that depend on the DOM being ready to be
115 * operated on. While this function is, technically, chainable - there really
116 * isn't much use for chaining against it.
118 * You can have as many $(document).ready events on your page as you like.
120 * See ready(Function) for details about the ready event.
122 * @example $(function(){
123 * // Document is ready
125 * @desc Executes the function when the DOM is ready to be used.
127 * @example jQuery(function($) {
128 * // Your code using failsafe $ alias here...
130 * @desc Uses both the shortcut for $(document).ready() and the argument
131 * to write failsafe jQuery code using the $ alias, without relying on the
135 * @param Function fn The function to execute when the DOM is ready.
138 * @see ready(Function)
141 jQuery.fn = jQuery.prototype = {
143 * Initialize a new jQuery object
147 * @param String|Function|Element|Array<Element>|jQuery a selector
148 * @param jQuery|Element|Array<Element> c context
151 init: function(a,c) {
152 // Make sure that a selection was provided
155 // Handle HTML strings
156 if ( typeof a == "string" ) {
157 var m = quickExpr.exec(a);
158 if ( m && (m[1] || !c) ) {
159 // HANDLE: $(html) -> $(array)
161 a = jQuery.clean( [ m[1] ] );
165 var tmp = document.getElementById( m[3] );
167 // Handle the case where IE and Opera return items
168 // by name instead of ID
169 if ( tmp.id != m[3] )
170 return jQuery().find( a );
182 return new jQuery( c ).find( a );
184 // HANDLE: $(function)
185 // Shortcut for document ready
186 } else if ( jQuery.isFunction(a) )
187 return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
189 return this.setArray(
191 a.constructor == Array && a ||
193 // HANDLE: $(arraylike)
194 // Watch for when an array-like object is passed as the selector
195 (a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||
202 * The current version of jQuery.
213 * The number of elements currently matched. The size function will return the same value.
215 * @example $("img").length;
216 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
226 * Get the number of elements currently matched. This returns the same
227 * number as the 'length' property of the jQuery object.
229 * @example $("img").size();
230 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
244 * Access all matched DOM elements. This serves as a backwards-compatible
245 * way of accessing all matched elements (other than the jQuery object
246 * itself, which is, in fact, an array of elements).
248 * It is useful if you need to operate on the DOM elements themselves instead of using built-in jQuery functions.
250 * @example $("img").get();
251 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
252 * @result [ <img src="test1.jpg"/> <img src="test2.jpg"/> ]
253 * @desc Selects all images in the document and returns the DOM Elements as an Array
256 * @type Array<Element>
261 * Access a single matched DOM element at a specified index in the matched set.
262 * This allows you to extract the actual DOM element and operate on it
263 * directly without necessarily using jQuery functionality on it.
265 * @example $("img").get(0);
266 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
267 * @result <img src="test1.jpg"/>
268 * @desc Selects all images in the document and returns the first one
272 * @param Number num Access the element in the Nth position.
275 get: function( num ) {
276 return num == undefined ?
278 // Return a 'clean' array
279 jQuery.makeArray( this ) :
281 // Return just the object
286 * Set the jQuery object to an array of elements, while maintaining
289 * @example $("img").pushStack([ document.body ]);
290 * @result $("img").pushStack() == [ document.body ]
295 * @param Elements elems An array of elements
298 pushStack: function( a ) {
300 ret.prevObject = this;
305 * Set the jQuery object to an array of elements. This operation is
306 * completely destructive - be sure to use .pushStack() if you wish to maintain
309 * @example $("img").setArray([ document.body ]);
310 * @result $("img").setArray() == [ document.body ]
315 * @param Elements elems An array of elements
318 setArray: function( a ) {
320 Array.prototype.push.apply( this, a );
325 * Execute a function within the context of every matched element.
326 * This means that every time the passed-in function is executed
327 * (which is once for every element matched) the 'this' keyword
328 * points to the specific DOM element.
330 * Additionally, the function, when executed, is passed a single
331 * argument representing the position of the element in the matched
332 * set (integer, zero-index).
334 * @example $("img").each(function(i){
335 * this.src = "test" + i + ".jpg";
337 * @before <img/><img/>
338 * @result <img src="test0.jpg"/><img src="test1.jpg"/>
339 * @desc Iterates over two images and sets their src property
343 * @param Function fn A function to execute
346 each: function( fn, args ) {
347 return jQuery.each( this, fn, args );
351 * Searches every matched element for the object and returns
352 * the index of the element, if found, starting with zero.
353 * Returns -1 if the object wasn't found.
355 * @example $("*").index( $('#foobar')[0] )
356 * @before <div id="foobar"><b></b><span id="foo"></span></div>
358 * @desc Returns the index for the element with ID foobar
360 * @example $("*").index( $('#foo')[0] )
361 * @before <div id="foobar"><b></b><span id="foo"></span></div>
363 * @desc Returns the index for the element with ID foo within another element
365 * @example $("*").index( $('#bar')[0] )
366 * @before <div id="foobar"><b></b><span id="foo"></span></div>
368 * @desc Returns -1, as there is no element with ID bar
372 * @param Element subject Object to search for
375 index: function( obj ) {
377 this.each(function(i){
378 if ( this == obj ) pos = i;
384 * Access a property on the first matched element.
385 * This method makes it easy to retrieve a property value
386 * from the first matched element.
388 * If the element does not have an attribute with such a
389 * name, undefined is returned.
391 * @example $("img").attr("src");
392 * @before <img src="test.jpg"/>
394 * @desc Returns the src attribute from the first image in the document.
398 * @param String name The name of the property to access.
399 * @cat DOM/Attributes
403 * Set a key/value object as properties to all matched elements.
405 * This serves as the best way to set a large number of properties
406 * on all matched elements.
408 * @example $("img").attr({ src: "test.jpg", alt: "Test Image" });
410 * @result <img src="test.jpg" alt="Test Image"/>
411 * @desc Sets src and alt attributes to all images.
415 * @param Map properties Key/value pairs to set as object properties.
416 * @cat DOM/Attributes
420 * Set a single property to a value, on all matched elements.
422 * Note that you can't set the name property of input elements in IE.
423 * Use $(html) or .append(html) or .html(html) to create elements
424 * on the fly including the name property.
426 * @example $("img").attr("src","test.jpg");
428 * @result <img src="test.jpg"/>
429 * @desc Sets src attribute to all images.
433 * @param String key The name of the property to set.
434 * @param Object value The value to set the property to.
435 * @cat DOM/Attributes
439 * Set a single property to a computed value, on all matched elements.
441 * Instead of supplying a string value as described
442 * [[DOM/Attributes#attr.28_key.2C_value_.29|above]],
443 * a function is provided that computes the value.
445 * @example $("img").attr("title", function() { return this.src });
446 * @before <img src="test.jpg" />
447 * @result <img src="test.jpg" title="test.jpg" />
448 * @desc Sets title attribute from src attribute.
450 * @example $("img").attr("title", function(index) { return this.title + (i + 1); });
451 * @before <img title="pic" /><img title="pic" /><img title="pic" />
452 * @result <img title="pic1" /><img title="pic2" /><img title="pic3" />
453 * @desc Enumerate title attribute.
457 * @param String key The name of the property to set.
458 * @param Function value A function returning the value to set.
459 * Scope: Current element, argument: Index of current element
460 * @cat DOM/Attributes
462 attr: function( key, value, type ) {
465 // Look for the case where we're accessing a style value
466 if ( key.constructor == String )
467 if ( value == undefined )
468 return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
474 // Check to see if we're setting style values
475 return this.each(function(index){
476 // Set all the styles
477 for ( var prop in obj )
479 type ? this.style : this,
480 prop, jQuery.prop(this, obj[prop], type, index, prop)
486 * Access a style property on the first matched element.
487 * This method makes it easy to retrieve a style property value
488 * from the first matched element.
490 * @example $("p").css("color");
491 * @before <p style="color:red;">Test Paragraph.</p>
493 * @desc Retrieves the color style of the first paragraph
495 * @example $("p").css("font-weight");
496 * @before <p style="font-weight: bold;">Test Paragraph.</p>
498 * @desc Retrieves the font-weight style of the first paragraph.
502 * @param String name The name of the property to access.
507 * Set a key/value object as style properties to all matched elements.
509 * This serves as the best way to set a large number of style properties
510 * on all matched elements.
512 * @example $("p").css({ color: "red", background: "blue" });
513 * @before <p>Test Paragraph.</p>
514 * @result <p style="color:red; background:blue;">Test Paragraph.</p>
515 * @desc Sets color and background styles to all p elements.
519 * @param Map properties Key/value pairs to set as style properties.
524 * Set a single style property to a value, on all matched elements.
525 * If a number is provided, it is automatically converted into a pixel value.
527 * @example $("p").css("color","red");
528 * @before <p>Test Paragraph.</p>
529 * @result <p style="color:red;">Test Paragraph.</p>
530 * @desc Changes the color of all paragraphs to red
532 * @example $("p").css("left",30);
533 * @before <p>Test Paragraph.</p>
534 * @result <p style="left:30px;">Test Paragraph.</p>
535 * @desc Changes the left of all paragraphs to "30px"
539 * @param String key The name of the property to set.
540 * @param String|Number value The value to set the property to.
543 css: function( key, value ) {
544 return this.attr( key, value, "curCSS" );
548 * Get the text contents of all matched elements. The result is
549 * a string that contains the combined text contents of all matched
550 * elements. This method works on both HTML and XML documents.
552 * @example $("p").text();
553 * @before <p><b>Test</b> Paragraph.</p><p>Paraparagraph</p>
554 * @result Test Paragraph.Paraparagraph
555 * @desc Gets the concatenated text of all paragraphs
559 * @cat DOM/Attributes
563 * Set the text contents of all matched elements.
565 * Similar to html(), but escapes HTML (replace "<" and ">" with their
568 * @example $("p").text("<b>Some</b> new text.");
569 * @before <p>Test Paragraph.</p>
570 * @result <p><b>Some</b> new text.</p>
571 * @desc Sets the text of all paragraphs.
573 * @example $("p").text("<b>Some</b> new text.", true);
574 * @before <p>Test Paragraph.</p>
575 * @result <p>Some new text.</p>
576 * @desc Sets the text of all paragraphs.
580 * @param String val The text value to set the contents of the element to.
581 * @cat DOM/Attributes
584 if ( typeof e != "object" && e != null )
585 return this.empty().append( document.createTextNode( e ) );
588 jQuery.each( e || this, function(){
589 jQuery.each( this.childNodes, function(){
590 if ( this.nodeType != 8 )
591 t += this.nodeType != 1 ?
592 this.nodeValue : jQuery.fn.text([ this ]);
599 * Wrap all matched elements with a structure of other elements.
600 * This wrapping process is most useful for injecting additional
601 * stucture into a document, without ruining the original semantic
602 * qualities of a document.
604 * This works by going through the first element
605 * provided (which is generated, on the fly, from the provided HTML)
606 * and finds the deepest ancestor element within its
607 * structure - it is that element that will en-wrap everything else.
609 * This does not work with elements that contain text. Any necessary text
610 * must be added after the wrapping is done.
612 * @example $("p").wrap("<div class='wrap'></div>");
613 * @before <p>Test Paragraph.</p>
614 * @result <div class='wrap'><p>Test Paragraph.</p></div>
618 * @param String html A string of HTML, that will be created on the fly and wrapped around the target.
619 * @cat DOM/Manipulation
623 * Wrap all matched elements with a structure of other elements.
624 * This wrapping process is most useful for injecting additional
625 * stucture into a document, without ruining the original semantic
626 * qualities of a document.
628 * This works by going through the first element
629 * provided and finding the deepest ancestor element within its
630 * structure - it is that element that will en-wrap everything else.
632 * This does not work with elements that contain text. Any necessary text
633 * must be added after the wrapping is done.
635 * @example $("p").wrap( document.getElementById('content') );
636 * @before <p>Test Paragraph.</p><div id="content"></div>
637 * @result <div id="content"><p>Test Paragraph.</p></div>
641 * @param Element elem A DOM element that will be wrapped around the target.
642 * @cat DOM/Manipulation
645 // The elements to wrap the target around
646 var a, args = arguments;
648 // Wrap each of the matched elements individually
649 return this.each(function(){
651 a = jQuery.clean(args, this.ownerDocument);
653 // Clone the structure that we're using to wrap
654 var b = a[0].cloneNode(true);
656 // Insert it before the element to be wrapped
657 this.parentNode.insertBefore( b, this );
659 // Find the deepest point in the wrap structure
660 while ( b.firstChild )
663 // Move the matched element to within the wrap structure
664 b.appendChild( this );
669 * Append content to the inside of every matched element.
671 * This operation is similar to doing an appendChild to all the
672 * specified elements, adding them into the document.
674 * @example $("p").append("<b>Hello</b>");
675 * @before <p>I would like to say: </p>
676 * @result <p>I would like to say: <b>Hello</b></p>
677 * @desc Appends some HTML to all paragraphs.
679 * @example $("p").append( $("#foo")[0] );
680 * @before <p>I would like to say: </p><b id="foo">Hello</b>
681 * @result <p>I would like to say: <b id="foo">Hello</b></p>
682 * @desc Appends an Element to all paragraphs.
684 * @example $("p").append( $("b") );
685 * @before <p>I would like to say: </p><b>Hello</b>
686 * @result <p>I would like to say: <b>Hello</b></p>
687 * @desc Appends a jQuery object (similar to an Array of DOM Elements) to all paragraphs.
691 * @param <Content> content Content to append to the target
692 * @cat DOM/Manipulation
693 * @see prepend(<Content>)
694 * @see before(<Content>)
695 * @see after(<Content>)
698 return this.domManip(arguments, true, 1, function(a){
699 this.appendChild( a );
704 * Prepend content to the inside of every matched element.
706 * This operation is the best way to insert elements
707 * inside, at the beginning, of all matched elements.
709 * @example $("p").prepend("<b>Hello</b>");
710 * @before <p>I would like to say: </p>
711 * @result <p><b>Hello</b>I would like to say: </p>
712 * @desc Prepends some HTML to all paragraphs.
714 * @example $("p").prepend( $("#foo")[0] );
715 * @before <p>I would like to say: </p><b id="foo">Hello</b>
716 * @result <p><b id="foo">Hello</b>I would like to say: </p>
717 * @desc Prepends an Element to all paragraphs.
719 * @example $("p").prepend( $("b") );
720 * @before <p>I would like to say: </p><b>Hello</b>
721 * @result <p><b>Hello</b>I would like to say: </p>
722 * @desc Prepends a jQuery object (similar to an Array of DOM Elements) to all paragraphs.
726 * @param <Content> content Content to prepend to the target.
727 * @cat DOM/Manipulation
728 * @see append(<Content>)
729 * @see before(<Content>)
730 * @see after(<Content>)
732 prepend: function() {
733 return this.domManip(arguments, true, -1, function(a){
734 this.insertBefore( a, this.firstChild );
739 * Insert content before each of the matched elements.
741 * @example $("p").before("<b>Hello</b>");
742 * @before <p>I would like to say: </p>
743 * @result <b>Hello</b><p>I would like to say: </p>
744 * @desc Inserts some HTML before all paragraphs.
746 * @example $("p").before( $("#foo")[0] );
747 * @before <p>I would like to say: </p><b id="foo">Hello</b>
748 * @result <b id="foo">Hello</b><p>I would like to say: </p>
749 * @desc Inserts an Element before all paragraphs.
751 * @example $("p").before( $("b") );
752 * @before <p>I would like to say: </p><b>Hello</b>
753 * @result <b>Hello</b><p>I would like to say: </p>
754 * @desc Inserts a jQuery object (similar to an Array of DOM Elements) before all paragraphs.
758 * @param <Content> content Content to insert before each target.
759 * @cat DOM/Manipulation
760 * @see append(<Content>)
761 * @see prepend(<Content>)
762 * @see after(<Content>)
765 return this.domManip(arguments, false, 1, function(a){
766 this.parentNode.insertBefore( a, this );
771 * Insert content after each of the matched elements.
773 * @example $("p").after("<b>Hello</b>");
774 * @before <p>I would like to say: </p>
775 * @result <p>I would like to say: </p><b>Hello</b>
776 * @desc Inserts some HTML after all paragraphs.
778 * @example $("p").after( $("#foo")[0] );
779 * @before <b id="foo">Hello</b><p>I would like to say: </p>
780 * @result <p>I would like to say: </p><b id="foo">Hello</b>
781 * @desc Inserts an Element after all paragraphs.
783 * @example $("p").after( $("b") );
784 * @before <b>Hello</b><p>I would like to say: </p>
785 * @result <p>I would like to say: </p><b>Hello</b>
786 * @desc Inserts a jQuery object (similar to an Array of DOM Elements) after all paragraphs.
790 * @param <Content> content Content to insert after each target.
791 * @cat DOM/Manipulation
792 * @see append(<Content>)
793 * @see prepend(<Content>)
794 * @see before(<Content>)
797 return this.domManip(arguments, false, -1, function(a){
798 this.parentNode.insertBefore( a, this.nextSibling );
803 * Revert the most recent 'destructive' operation, changing the set of matched elements
804 * to its previous state (right before the destructive operation).
806 * If there was no destructive operation before, an empty set is returned.
808 * A 'destructive' operation is any operation that changes the set of
809 * matched jQuery elements. These functions are: <code>add</code>,
810 * <code>children</code>, <code>clone</code>, <code>filter</code>,
811 * <code>find</code>, <code>not</code>, <code>next</code>,
812 * <code>parent</code>, <code>parents</code>, <code>prev</code> and <code>siblings</code>.
814 * @example $("p").find("span").end();
815 * @before <p><span>Hello</span>, how are you?</p>
816 * @result [ <p>...</p> ]
817 * @desc Selects all paragraphs, finds span elements inside these, and reverts the
818 * selection back to the paragraphs.
822 * @cat DOM/Traversing
825 return this.prevObject || jQuery([]);
829 * Searches for all elements that match the specified expression.
831 * This method is a good way to find additional descendant
832 * elements with which to process.
834 * All searching is done using a jQuery expression. The expression can be
835 * written using CSS 1-3 Selector syntax, or basic XPath.
837 * @example $("p").find("span");
838 * @before <p><span>Hello</span>, how are you?</p>
839 * @result [ <span>Hello</span> ]
840 * @desc Starts with all paragraphs and searches for descendant span
841 * elements, same as $("p span")
845 * @param String expr An expression to search with.
846 * @cat DOM/Traversing
849 var data = jQuery.map(this, function(a){ return jQuery.find(t,a); });
850 return this.pushStack( /[^+>] [^+>]/.test( t ) || t.indexOf("..") > -1 ?
851 jQuery.unique( data ) : data );
855 * Clone matched DOM Elements and select the clones.
857 * This is useful for moving copies of the elements to another
858 * location in the DOM.
860 * @example $("b").clone().prependTo("p");
861 * @before <b>Hello</b><p>, how are you?</p>
862 * @result <b>Hello</b><p><b>Hello</b>, how are you?</p>
863 * @desc Clones all b elements (and selects the clones) and prepends them to all paragraphs.
867 * @param Boolean deep (Optional) Set to false if you don't want to clone all descendant nodes, in addition to the element itself.
868 * @cat DOM/Manipulation
870 clone: function(deep) {
871 deep = deep != undefined ? deep : true;
872 var $this = this.add(this.find("*"));
873 if (jQuery.browser.msie) {
874 // Need to remove events on the element and its descendants
875 $this.each(function() {
877 for (var type in this.$events)
878 this._$events[type] = jQuery.extend({},this.$events[type]);
883 var r = this.pushStack( jQuery.map( this, function(a){
884 return a.cloneNode( deep );
887 if (jQuery.browser.msie) {
888 $this.each(function() {
889 // Add the events back to the original and its descendants
890 var events = this._$events;
891 for (var type in events)
892 for (var handler in events[type])
893 jQuery.event.add(this, type, events[type][handler], events[type][handler].data);
894 this._$events = null;
898 // copy form values over
900 var inputs = r.add(r.find('*')).filter('select,input[@type=checkbox]');
901 $this.filter('select,input[@type=checkbox]').each(function(i) {
902 if (this.selectedIndex)
903 inputs[i].selectedIndex = this.selectedIndex;
905 inputs[i].checked = true;
909 // Return the cloned set
914 * Removes all elements from the set of matched elements that do not
915 * match the specified expression(s). This method is used to narrow down
916 * the results of a search.
918 * Provide a comma-separated list of expressions to apply multiple filters at once.
920 * @example $("p").filter(".selected")
921 * @before <p class="selected">Hello</p><p>How are you?</p>
922 * @result [ <p class="selected">Hello</p> ]
923 * @desc Selects all paragraphs and removes those without a class "selected".
925 * @example $("p").filter(".selected, :first")
926 * @before <p>Hello</p><p>Hello Again</p><p class="selected">And Again</p>
927 * @result [ <p>Hello</p>, <p class="selected">And Again</p> ]
928 * @desc Selects all paragraphs and removes those without class "selected" and being the first one.
932 * @param String expression Expression(s) to search with.
933 * @cat DOM/Traversing
937 * Removes all elements from the set of matched elements that do not
938 * pass the specified filter. This method is used to narrow down
939 * the results of a search.
941 * @example $("p").filter(function(index) {
942 * return $("ol", this).length == 0;
944 * @before <p><ol><li>Hello</li></ol></p><p>How are you?</p>
945 * @result [ <p>How are you?</p> ]
946 * @desc Remove all elements that have a child ol element
950 * @param Function filter A function to use for filtering
951 * @cat DOM/Traversing
953 filter: function(t) {
954 return this.pushStack(
955 jQuery.isFunction( t ) &&
956 jQuery.grep(this, function(el, index){
957 return t.apply(el, [index]);
960 jQuery.multiFilter(t,this) );
964 * Removes the specified Element from the set of matched elements. This
965 * method is used to remove a single Element from a jQuery object.
967 * @example $("p").not( $("#selected")[0] )
968 * @before <p>Hello</p><p id="selected">Hello Again</p>
969 * @result [ <p>Hello</p> ]
970 * @desc Removes the element with the ID "selected" from the set of all paragraphs.
974 * @param Element el An element to remove from the set
975 * @cat DOM/Traversing
979 * Removes elements matching the specified expression from the set
980 * of matched elements. This method is used to remove one or more
981 * elements from a jQuery object.
983 * @example $("p").not("#selected")
984 * @before <p>Hello</p><p id="selected">Hello Again</p>
985 * @result [ <p>Hello</p> ]
986 * @desc Removes the element with the ID "selected" from the set of all paragraphs.
990 * @param String expr An expression with which to remove matching elements
991 * @cat DOM/Traversing
995 * Removes any elements inside the array of elements from the set
996 * of matched elements. This method is used to remove one or more
997 * elements from a jQuery object.
999 * Please note: the expression cannot use a reference to the
1000 * element name. See the two examples below.
1002 * @example $("p").not( $("div p.selected") )
1003 * @before <div><p>Hello</p><p class="selected">Hello Again</p></div>
1004 * @result [ <p>Hello</p> ]
1005 * @desc Removes all elements that match "div p.selected" from the total set of all paragraphs.
1009 * @param jQuery elems A set of elements to remove from the jQuery set of matched elements.
1010 * @cat DOM/Traversing
1013 return this.pushStack(
1014 t.constructor == String &&
1015 jQuery.multiFilter(t, this, true) ||
1017 jQuery.grep(this, function(a) {
1018 return ( t.constructor == Array || t.jquery )
1019 ? jQuery.inArray( a, t ) < 0
1026 * Adds more elements, matched by the given expression,
1027 * to the set of matched elements.
1029 * @example $("p").add("span")
1030 * @before (HTML) <p>Hello</p><span>Hello Again</span>
1031 * @result (jQuery object matching 2 elements) [ <p>Hello</p>, <span>Hello Again</span> ]
1032 * @desc Compare the above result to the result of <code>$('p')</code>,
1033 * which would just result in <code><nowiki>[ <p>Hello</p> ]</nowiki></code>.
1034 * Using add(), matched elements of <code>$('span')</code> are simply
1035 * added to the returned jQuery-object.
1039 * @param String expr An expression whose matched elements are added
1040 * @cat DOM/Traversing
1044 * Adds more elements, created on the fly, to the set of
1047 * @example $("p").add("<span>Again</span>")
1048 * @before <p>Hello</p>
1049 * @result [ <p>Hello</p>, <span>Again</span> ]
1053 * @param String html A string of HTML to create on the fly.
1054 * @cat DOM/Traversing
1058 * Adds one or more Elements to the set of matched elements.
1060 * @example $("p").add( document.getElementById("a") )
1061 * @before <p>Hello</p><p><span id="a">Hello Again</span></p>
1062 * @result [ <p>Hello</p>, <span id="a">Hello Again</span> ]
1064 * @example $("p").add( document.forms[0].elements )
1065 * @before <p>Hello</p><p><form><input/><button/></form>
1066 * @result [ <p>Hello</p>, <input/>, <button/> ]
1070 * @param Element|Array<Element> elements One or more Elements to add
1071 * @cat DOM/Traversing
1074 return this.pushStack( jQuery.merge(
1076 t.constructor == String ?
1078 t.length != undefined && (!t.nodeName || t.nodeName == "FORM") ?
1084 * Checks the current selection against an expression and returns true,
1085 * if at least one element of the selection fits the given expression.
1087 * Does return false, if no element fits or the expression is not valid.
1089 * filter(String) is used internally, therefore all rules that apply there
1092 * @example $("input[@type='checkbox']").parent().is("form")
1093 * @before <form><input type="checkbox" /></form>
1095 * @desc Returns true, because the parent of the input is a form element
1097 * @example $("input[@type='checkbox']").parent().is("form")
1098 * @before <form><p><input type="checkbox" /></p></form>
1100 * @desc Returns false, because the parent of the input is a p element
1104 * @param String expr The expression with which to filter
1105 * @cat DOM/Traversing
1107 is: function(expr) {
1108 return expr ? jQuery.multiFilter(expr,this).length > 0 : false;
1112 * Get the content of the value attribute of the first matched element.
1114 * Use caution when relying on this function to check the value of
1115 * multiple-select elements and checkboxes in a form. While it will
1116 * still work as intended, it may not accurately represent the value
1117 * the server will receive because these elements may send an array
1118 * of values. For more robust handling of field values, see the
1119 * [http://www.malsup.com/jquery/form/#fields fieldValue function of the Form Plugin].
1121 * @example $("input").val();
1122 * @before <input type="text" value="some text"/>
1123 * @result "some text"
1127 * @cat DOM/Attributes
1131 * Set the value attribute of every matched element.
1133 * @example $("input").val("test");
1134 * @before <input type="text" value="some text"/>
1135 * @result <input type="text" value="test"/>
1139 * @param String val Set the property to the specified value.
1140 * @cat DOM/Attributes
1142 val: function( val ) {
1143 return val == undefined ?
1144 ( this.length ? this[0].value : null ) :
1145 this.attr( "value", val );
1149 * Get the html contents of the first matched element.
1150 * This property is not available on XML documents.
1152 * @example $("div").html();
1153 * @before <div><input/></div>
1158 * @cat DOM/Attributes
1162 * Set the html contents of every matched element.
1163 * This property is not available on XML documents.
1165 * @example $("div").html("<b>new stuff</b>");
1166 * @before <div><input/></div>
1167 * @result <div><b>new stuff</b></div>
1171 * @param String val Set the html contents to the specified value.
1172 * @cat DOM/Attributes
1174 html: function( val ) {
1175 return val == undefined ?
1176 ( this.length ? this[0].innerHTML : null ) :
1177 this.empty().append( val );
1181 return this.pushStack( Array.prototype.slice.apply( this, arguments ) );
1188 * @param Boolean table Insert TBODY in TABLEs if one is not found.
1189 * @param Number dir If dir<0, process args in reverse order.
1190 * @param Function fn The function doing the DOM manipulation.
1194 domManip: function(args, table, dir, fn){
1195 var clone = this.length > 1, a;
1197 return this.each(function(){
1199 a = jQuery.clean(args, this.ownerDocument);
1206 if ( table && jQuery.nodeName(this, "table") && jQuery.nodeName(a[0], "tr") )
1207 obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));
1209 jQuery.each( a, function(){
1210 if ( jQuery.nodeName(this, "script") ) {
1212 jQuery.ajax({ url: this.src, async: false, dataType: "script" });
1214 jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
1216 fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
1223 * Extends the jQuery object itself. Can be used to add functions into
1224 * the jQuery namespace and to [[Plugins/Authoring|add plugin methods]] (plugins).
1226 * @example jQuery.fn.extend({
1227 * check: function() {
1228 * return this.each(function() { this.checked = true; });
1230 * uncheck: function() {
1231 * return this.each(function() { this.checked = false; });
1234 * $("input[@type=checkbox]").check();
1235 * $("input[@type=radio]").uncheck();
1236 * @desc Adds two plugin methods.
1238 * @example jQuery.extend({
1239 * min: function(a, b) { return a < b ? a : b; },
1240 * max: function(a, b) { return a > b ? a : b; }
1242 * @desc Adds two functions into the jQuery namespace
1245 * @param Object prop The object that will be merged into the jQuery object
1251 * Extend one object with one or more others, returning the original,
1252 * modified, object. This is a great utility for simple inheritance.
1254 * @example var settings = { validate: false, limit: 5, name: "foo" };
1255 * var options = { validate: true, name: "bar" };
1256 * jQuery.extend(settings, options);
1257 * @result settings == { validate: true, limit: 5, name: "bar" }
1258 * @desc Merge settings and options, modifying settings
1260 * @example var defaults = { validate: false, limit: 5, name: "foo" };
1261 * var options = { validate: true, name: "bar" };
1262 * var settings = jQuery.extend({}, defaults, options);
1263 * @result settings == { validate: true, limit: 5, name: "bar" }
1264 * @desc Merge defaults and options, without modifying the defaults
1267 * @param Object target The object to extend
1268 * @param Object prop1 The object that will be merged into the first.
1269 * @param Object propN (optional) More objects to merge into the first
1273 jQuery.extend = jQuery.fn.extend = function() {
1274 // copy reference to target object
1275 var target = arguments[0] || {}, a = 1, al = arguments.length, deep = false;
1277 // Handle a deep copy situation
1278 if ( target.constructor == Boolean ) {
1280 target = arguments[1] || {};
1283 // extend jQuery itself if only one argument is passed
1291 for ( ; a < al; a++ )
1292 // Only deal with non-null/undefined values
1293 if ( (prop = arguments[a]) != null )
1294 // Extend the base object
1295 for ( var i in prop ) {
1296 // Prevent never-ending loop
1297 if ( target == prop[i] )
1300 // Recurse if we're merging object values
1301 if ( deep && typeof prop[i] == 'object' && target[i] )
1302 jQuery.extend( target[i], prop[i] );
1304 // Don't bring in undefined values
1305 else if ( prop[i] != undefined )
1306 target[i] = prop[i];
1309 // Return the modified object
1315 * Run this function to give control of the $ variable back
1316 * to whichever library first implemented it. This helps to make
1317 * sure that jQuery doesn't conflict with the $ object
1318 * of other libraries.
1320 * By using this function, you will only be able to access jQuery
1321 * using the 'jQuery' variable. For example, where you used to do
1322 * $("div p"), you now must do jQuery("div p").
1324 * @example jQuery.noConflict();
1325 * // Do something with jQuery
1326 * jQuery("div p").hide();
1327 * // Do something with another library's $()
1328 * $("content").style.display = 'none';
1329 * @desc Maps the original object that was referenced by $ back to $
1331 * @example jQuery.noConflict();
1334 * // more code using $ as alias to jQuery
1337 * // other code using $ as an alias to the other library
1338 * @desc Reverts the $ alias and then creates and executes a
1339 * function to provide the $ as a jQuery alias inside the functions
1340 * scope. Inside the function the original $ object is not available.
1341 * This works well for most plugins that don't rely on any other library.
1344 * @name $.noConflict
1348 noConflict: function() {
1354 // This may seem like some crazy code, but trust me when I say that this
1355 // is the only cross-browser way to do this. --John
1356 isFunction: function( fn ) {
1357 return !!fn && typeof fn != "string" && !fn.nodeName &&
1358 fn.constructor != Array && /function/i.test( fn + "" );
1361 // check if an element is in a XML document
1362 isXMLDoc: function(elem) {
1363 return elem.documentElement && !elem.body ||
1364 elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
1367 // Evalulates a script in a global context
1368 // Evaluates Async. in Safari 2 :-(
1369 globalEval: function( data ) {
1370 data = jQuery.trim( data );
1372 if ( window.execScript )
1373 window.execScript( data );
1374 else if ( jQuery.browser.safari )
1375 // safari doesn't provide a synchronous global eval
1376 window.setTimeout( data, 0 );
1378 eval.call( window, data );
1382 nodeName: function( elem, name ) {
1383 return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
1387 * A generic iterator function, which can be used to seamlessly
1388 * iterate over both objects and arrays. This function is not the same
1389 * as $().each() - which is used to iterate, exclusively, over a jQuery
1390 * object. This function can be used to iterate over anything.
1392 * The callback has two arguments:the key (objects) or index (arrays) as first
1393 * the first, and the value as the second.
1395 * @example $.each( [0,1,2], function(i, n){
1396 * alert( "Item #" + i + ": " + n );
1398 * @desc This is an example of iterating over the items in an array,
1399 * accessing both the current item and its index.
1401 * @example $.each( { name: "John", lang: "JS" }, function(i, n){
1402 * alert( "Name: " + i + ", Value: " + n );
1405 * @desc This is an example of iterating over the properties in an
1406 * Object, accessing both the current item and its key.
1409 * @param Object obj The object, or array, to iterate over.
1410 * @param Function fn The function that will be executed on every object.
1414 // args is for internal usage only
1415 each: function( obj, fn, args ) {
1417 if ( obj.length == undefined )
1418 for ( var i in obj )
1419 fn.apply( obj[i], args );
1421 for ( var i = 0, ol = obj.length; i < ol; i++ )
1422 if ( fn.apply( obj[i], args ) === false ) break;
1424 // A special, fast, case for the most common use of each
1426 if ( obj.length == undefined )
1427 for ( var i in obj )
1428 fn.call( obj[i], i, obj[i] );
1430 for ( var i = 0, ol = obj.length, val = obj[0];
1431 i < ol && fn.call(val,i,val) !== false; val = obj[++i] );
1437 prop: function(elem, value, type, index, prop){
1438 // Handle executable functions
1439 if ( jQuery.isFunction( value ) )
1440 value = value.call( elem, [index] );
1442 // exclude the following css properties to add px
1443 var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
1445 // Handle passing in a number to a CSS property
1446 return value && value.constructor == Number && type == "curCSS" && !exclude.test(prop) ?
1452 // internal only, use addClass("class")
1453 add: function( elem, c ){
1454 jQuery.each( (c || "").split(/\s+/), function(i, cur){
1455 if ( !jQuery.className.has( elem.className, cur ) )
1456 elem.className += ( elem.className ? " " : "" ) + cur;
1460 // internal only, use removeClass("class")
1461 remove: function( elem, c ){
1462 elem.className = c != undefined ?
1463 jQuery.grep( elem.className.split(/\s+/), function(cur){
1464 return !jQuery.className.has( c, cur );
1468 // internal only, use is(".class")
1469 has: function( t, c ) {
1470 return jQuery.inArray( c, (t.className || t).toString().split(/\s+/) ) > -1;
1475 * Swap in/out style options.
1478 swap: function(e,o,f) {
1479 for ( var i in o ) {
1480 e.style["old"+i] = e.style[i];
1485 e.style[i] = e.style["old"+i];
1488 css: function(e,p) {
1489 if ( p == "height" || p == "width" ) {
1490 var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
1492 jQuery.each( d, function(){
1493 old["padding" + this] = 0;
1494 old["border" + this + "Width"] = 0;
1497 jQuery.swap( e, old, function() {
1498 if ( jQuery(e).is(':visible') ) {
1499 oHeight = e.offsetHeight;
1500 oWidth = e.offsetWidth;
1502 e = jQuery(e.cloneNode(true))
1503 .find(":radio").removeAttr("checked").end()
1505 visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
1506 }).appendTo(e.parentNode)[0];
1508 var parPos = jQuery.css(e.parentNode,"position") || "static";
1509 if ( parPos == "static" )
1510 e.parentNode.style.position = "relative";
1512 oHeight = e.clientHeight;
1513 oWidth = e.clientWidth;
1515 if ( parPos == "static" )
1516 e.parentNode.style.position = "static";
1518 e.parentNode.removeChild(e);
1522 return p == "height" ? oHeight : oWidth;
1525 return jQuery.curCSS( e, p );
1528 curCSS: function(elem, prop, force) {
1529 var ret, stack = [], swap = [];
1531 // A helper method for determining if an element's values are broken
1533 if ( !jQuery.browser.safari )
1536 var ret = document.defaultView.getComputedStyle(a,null);
1537 return !ret || ret.getPropertyValue("color") == "";
1540 if (prop == "opacity" && jQuery.browser.msie) {
1541 ret = jQuery.attr(elem.style, "opacity");
1542 return ret == "" ? "1" : ret;
1545 if (prop.match(/float/i))
1548 if (!force && elem.style[prop])
1549 ret = elem.style[prop];
1551 else if (document.defaultView && document.defaultView.getComputedStyle) {
1553 if (prop.match(/float/i))
1556 prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
1557 var cur = document.defaultView.getComputedStyle(elem, null);
1559 if ( cur && !color(elem) )
1560 ret = cur.getPropertyValue(prop);
1562 // If the element isn't reporting its values properly in Safari
1563 // then some display: none elements are involved
1565 // Locate all of the parent display: none elements
1566 for ( var a = elem; a && color(a); a = a.parentNode )
1569 // Go through and make them visible, but in reverse
1570 // (It would be better if we knew the exact display type that they had)
1571 for ( a = 0; a < stack.length; a++ )
1572 if ( color(stack[a]) ) {
1573 swap[a] = stack[a].style.display;
1574 stack[a].style.display = "block";
1577 // Since we flip the display style, we have to handle that
1578 // one special, otherwise get the value
1579 ret = prop == "display" && swap[stack.length-1] != null ?
1581 document.defaultView.getComputedStyle(elem,null).getPropertyValue(prop) || "";
1583 // Finally, revert the display styles back
1584 for ( a = 0; a < swap.length; a++ )
1585 if ( swap[a] != null )
1586 stack[a].style.display = swap[a];
1589 if ( prop == "opacity" && ret == "" )
1592 } else if (elem.currentStyle) {
1593 var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
1594 ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
1600 clean: function(a, doc) {
1602 doc = doc || document;
1604 jQuery.each( a, function(i,arg){
1607 if ( arg.constructor == Number )
1608 arg = arg.toString();
1610 // Convert html string into DOM nodes
1611 if ( typeof arg == "string" ) {
1612 // Trim whitespace, otherwise indexOf won't work as expected
1613 var s = jQuery.trim(arg).toLowerCase(), div = doc.createElement("div"), tb = [];
1616 // option or optgroup
1617 !s.indexOf("<opt") &&
1618 [1, "<select>", "</select>"] ||
1620 !s.indexOf("<leg") &&
1621 [1, "<fieldset>", "</fieldset>"] ||
1623 s.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
1624 [1, "<table>", "</table>"] ||
1626 !s.indexOf("<tr") &&
1627 [2, "<table><tbody>", "</tbody></table>"] ||
1629 // <thead> matched above
1630 (!s.indexOf("<td") || !s.indexOf("<th")) &&
1631 [3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
1633 !s.indexOf("<col") &&
1634 [2, "<table><tbody></tbody><colgroup>", "</colgroup></table>"] ||
1636 // IE can't serialize <link> and <script> tags normally
1637 jQuery.browser.msie &&
1638 [1, "div<div>", "</div>"] ||
1642 // Go to html and back, then peel off extra wrappers
1643 div.innerHTML = wrap[1] + arg + wrap[2];
1645 // Move to the right depth
1647 div = div.lastChild;
1649 // Remove IE's autoinserted <tbody> from table fragments
1650 if ( jQuery.browser.msie ) {
1652 // String was a <table>, *may* have spurious <tbody>
1653 if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 )
1654 tb = div.firstChild && div.firstChild.childNodes;
1656 // String was a bare <thead> or <tfoot>
1657 else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
1658 tb = div.childNodes;
1660 for ( var n = tb.length-1; n >= 0 ; --n )
1661 if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
1662 tb[n].parentNode.removeChild(tb[n]);
1664 // IE completely kills leading whitespace when innerHTML is used
1665 if ( /^\s/.test(arg) )
1666 div.insertBefore( doc.createTextNode( arg.match(/^\s*/)[0] ), div.firstChild );
1670 arg = jQuery.makeArray( div.childNodes );
1673 if ( 0 === arg.length && (!jQuery.nodeName(arg, "form") && !jQuery.nodeName(arg, "select")) )
1676 if ( arg[0] == undefined || jQuery.nodeName(arg, "form") || arg.options )
1679 r = jQuery.merge( r, arg );
1686 attr: function(elem, name, value){
1687 var fix = jQuery.isXMLDoc(elem) ? {} : jQuery.props;
1689 // Safari mis-reports the default selected property of a hidden option
1690 // Accessing the parent's selectedIndex property fixes it
1691 if ( name == "selected" && jQuery.browser.safari )
1692 elem.parentNode.selectedIndex;
1694 // Certain attributes only work when accessed via the old DOM 0 way
1696 if ( value != undefined ) elem[fix[name]] = value;
1697 return elem[fix[name]];
1698 } else if ( jQuery.browser.msie && name == "style" )
1699 return jQuery.attr( elem.style, "cssText", value );
1701 else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
1702 return elem.getAttributeNode(name).nodeValue;
1704 // IE elem.getAttribute passes even for style
1705 else if ( elem.tagName ) {
1707 if ( value != undefined ) elem.setAttribute( name, value );
1708 if ( jQuery.browser.msie && /href|src/.test(name) && !jQuery.isXMLDoc(elem) )
1709 return elem.getAttribute( name, 2 );
1710 return elem.getAttribute( name );
1712 // elem is actually elem.style ... set the style
1714 // IE actually uses filters for opacity
1715 if ( name == "opacity" && jQuery.browser.msie ) {
1716 if ( value != undefined ) {
1717 // IE has trouble with opacity if it does not have layout
1718 // Force it by setting the zoom level
1721 // Set the alpha filter to set the opacity
1722 elem.filter = (elem.filter || "").replace(/alpha\([^)]*\)/,"") +
1723 (parseFloat(value).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
1726 return elem.filter ?
1727 (parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() : "";
1729 name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
1730 if ( value != undefined ) elem[name] = value;
1736 * Remove the whitespace from the beginning and end of a string.
1738 * @example $.trim(" hello, how are you? ");
1739 * @result "hello, how are you?"
1743 * @param String str The string to trim.
1747 return (t||"").replace(/^\s+|\s+$/g, "");
1750 makeArray: function( a ) {
1753 // Need to use typeof to fight Safari childNodes crashes
1754 if ( typeof a != "array" )
1755 for ( var i = 0, al = a.length; i < al; i++ )
1763 inArray: function( b, a ) {
1764 for ( var i = 0, al = a.length; i < al; i++ )
1771 * Merge two arrays together by concatenating them.
1773 * @example $.merge( [0,1,2], [2,3,4] )
1774 * @result [0,1,2,2,3,4]
1775 * @desc Merges two arrays.
1779 * @param Array first The first array to merge, the elements of second are added.
1780 * @param Array second The second array to append to the first, unaltered.
1783 merge: function(first, second) {
1784 // We have to loop this way because IE & Opera overwrite the length
1785 // expando of getElementsByTagName
1787 // Also, we need to make sure that the correct elements are being returned
1788 // (IE returns comment nodes in a '*' query)
1789 if ( jQuery.browser.msie ) {
1790 for ( var i = 0; second[i]; i++ )
1791 if ( second[i].nodeType != 8 )
1792 first.push(second[i]);
1794 for ( var i = 0; second[i]; i++ )
1795 first.push(second[i]);
1801 * Reduce an array (of jQuery objects only) to its unique elements.
1803 * @example $.unique( [x1, x2, x3, x2, x3] )
1804 * @result [x1, x2, x3]
1805 * @desc Reduces the arrays of jQuery objects to unique elements by removing the duplicates of x2 and x3
1809 * @param Array array The array to reduce to its unique jQuery objects.
1812 unique: function(first) {
1813 var r = [], num = jQuery.mergeNum++;
1816 for ( var i = 0, fl = first.length; i < fl; i++ )
1817 if ( num != first[i].mergeNum ) {
1818 first[i].mergeNum = num;
1831 * Filter items out of an array, by using a filter function.
1833 * The specified function will be passed two arguments: The
1834 * current array item and the index of the item in the array. The
1835 * function must return 'true' to keep the item in the array,
1836 * false to remove it.
1838 * @example $.grep( [0,1,2], function(i){
1845 * @param Array array The Array to find items in.
1846 * @param Function fn The function to process each item against.
1847 * @param Boolean inv Invert the selection - select the opposite of the function.
1850 grep: function(elems, fn, inv) {
1851 // If a string is passed in for the function, make a function
1852 // for it (a handy shortcut)
1853 if ( typeof fn == "string" )
1854 fn = new Function("a","i","return " + fn);
1858 // Go through the array, only saving the items
1859 // that pass the validator function
1860 for ( var i = 0, el = elems.length; i < el; i++ )
1861 if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
1862 result.push( elems[i] );
1868 * Translate all items in an array to another array of items.
1870 * The translation function that is provided to this method is
1871 * called for each item in the array and is passed one argument:
1872 * The item to be translated.
1874 * The function can then return the translated value, 'null'
1875 * (to remove the item), or an array of values - which will
1876 * be flattened into the full array.
1878 * @example $.map( [0,1,2], function(i){
1882 * @desc Maps the original array to a new one and adds 4 to each value.
1884 * @example $.map( [0,1,2], function(i){
1885 * return i > 0 ? i + 1 : null;
1888 * @desc Maps the original array to a new one and adds 1 to each
1889 * value if it is bigger then zero, otherwise it's removed-
1891 * @example $.map( [0,1,2], function(i){
1892 * return [ i, i + 1 ];
1894 * @result [0, 1, 1, 2, 2, 3]
1895 * @desc Maps the original array to a new one, each element is added
1896 * with it's original value and the value plus one.
1900 * @param Array array The Array to translate.
1901 * @param Function fn The function to process each item against.
1904 map: function(elems, fn) {
1905 // If a string is passed in for the function, make a function
1906 // for it (a handy shortcut)
1907 if ( typeof fn == "string" )
1908 fn = new Function("a","return " + fn);
1912 // Go through the array, translating each of the items to their
1913 // new value (or values).
1914 for ( var i = 0, el = elems.length; i < el; i++ ) {
1915 var val = fn(elems[i],i);
1917 if ( val !== null && val != undefined ) {
1918 if ( val.constructor != Array ) val = [val];
1919 result = result.concat( val );
1928 * Contains flags for the useragent, read from navigator.userAgent.
1929 * Available flags are: safari, opera, msie, mozilla
1931 * This property is available before the DOM is ready, therefore you can
1932 * use it to add ready events only for certain browsers.
1934 * There are situations where object detections is not reliable enough, in that
1935 * cases it makes sense to use browser detection. Simply try to avoid both!
1937 * A combination of browser and object detection yields quite reliable results.
1939 * @example $.browser.msie
1940 * @desc Returns true if the current useragent is some version of microsoft's internet explorer
1942 * @example if($.browser.safari) { $( function() { alert("this is safari!"); } ); }
1943 * @desc Alerts "this is safari!" only for safari browsers
1952 * Whether the W3C compliant box model is being used.
1959 var userAgent = navigator.userAgent.toLowerCase();
1961 // Figure out what browser is being used
1963 version: (userAgent.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
1964 safari: /webkit/.test(userAgent),
1965 opera: /opera/.test(userAgent),
1966 msie: /msie/.test(userAgent) && !/opera/.test(userAgent),
1967 mozilla: /mozilla/.test(userAgent) && !/(compatible|webkit)/.test(userAgent)
1970 var styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
1973 // Check to see if the W3C box model is being used
1974 boxModel: !jQuery.browser.msie || document.compatMode == "CSS1Compat",
1976 styleFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
1980 "class": "className",
1981 "float": styleFloat,
1982 cssFloat: styleFloat,
1983 styleFloat: styleFloat,
1984 innerHTML: "innerHTML",
1985 className: "className",
1987 disabled: "disabled",
1989 readonly: "readOnly",
1990 selected: "selected",
1991 maxlength: "maxLength"
1996 * Get a set of elements containing the unique parents of the matched
1999 * You may use an optional expression to filter the set of parent elements that will match.
2001 * @example $("p").parent()
2002 * @before <div><p>Hello</p><p>Hello</p></div>
2003 * @result [ <div><p>Hello</p><p>Hello</p></div> ]
2004 * @desc Find the parent element of each paragraph.
2006 * @example $("p").parent(".selected")
2007 * @before <div><p>Hello</p></div><div class="selected"><p>Hello Again</p></div>
2008 * @result [ <div class="selected"><p>Hello Again</p></div> ]
2009 * @desc Find the parent element of each paragraph with a class "selected".
2013 * @param String expr (optional) An expression to filter the parents with
2014 * @cat DOM/Traversing
2018 * Get a set of elements containing the unique ancestors of the matched
2019 * set of elements (except for the root element).
2021 * The matched elements can be filtered with an optional expression.
2023 * @example $("span").parents()
2024 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
2025 * @result [ <body>...</body>, <div>...</div>, <p><span>Hello</span></p> ]
2026 * @desc Find all parent elements of each span.
2028 * @example $("span").parents("p")
2029 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
2030 * @result [ <p><span>Hello</span></p> ]
2031 * @desc Find all parent elements of each span that is a paragraph.
2035 * @param String expr (optional) An expression to filter the ancestors with
2036 * @cat DOM/Traversing
2040 * Get a set of elements containing the unique next siblings of each of the
2041 * matched set of elements.
2043 * It only returns the very next sibling for each element, not all
2046 * You may provide an optional expression to filter the match.
2048 * @example $("p").next()
2049 * @before <p>Hello</p><p>Hello Again</p><div><span>And Again</span></div>
2050 * @result [ <p>Hello Again</p>, <div><span>And Again</span></div> ]
2051 * @desc Find the very next sibling of each paragraph.
2053 * @example $("p").next(".selected")
2054 * @before <p>Hello</p><p class="selected">Hello Again</p><div><span>And Again</span></div>
2055 * @result [ <p class="selected">Hello Again</p> ]
2056 * @desc Find the very next sibling of each paragraph that has a class "selected".
2060 * @param String expr (optional) An expression to filter the next Elements with
2061 * @cat DOM/Traversing
2065 * Get a set of elements containing the unique previous siblings of each of the
2066 * matched set of elements.
2068 * Use an optional expression to filter the matched set.
2070 * Only the immediately previous sibling is returned, not all previous siblings.
2072 * @example $("p").prev()
2073 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
2074 * @result [ <div><span>Hello Again</span></div> ]
2075 * @desc Find the very previous sibling of each paragraph.
2077 * @example $("p").prev(".selected")
2078 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
2079 * @result [ <div><span>Hello</span></div> ]
2080 * @desc Find the very previous sibling of each paragraph that has a class "selected".
2084 * @param String expr (optional) An expression to filter the previous Elements with
2085 * @cat DOM/Traversing
2089 * Get a set of elements containing all of the unique siblings of each of the
2090 * matched set of elements.
2092 * Can be filtered with an optional expressions.
2094 * @example $("div").siblings()
2095 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
2096 * @result [ <p>Hello</p>, <p>And Again</p> ]
2097 * @desc Find all siblings of each div.
2099 * @example $("div").siblings(".selected")
2100 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
2101 * @result [ <p class="selected">Hello Again</p> ]
2102 * @desc Find all siblings with a class "selected" of each div.
2106 * @param String expr (optional) An expression to filter the sibling Elements with
2107 * @cat DOM/Traversing
2111 * Get a set of elements containing all of the unique children of each of the
2112 * matched set of elements.
2114 * This set can be filtered with an optional expression that will cause
2115 * only elements matching the selector to be collected.
2117 * @example $("div").children()
2118 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
2119 * @result [ <span>Hello Again</span> ]
2120 * @desc Find all children of each div.
2122 * @example $("div").children(".selected")
2123 * @before <div><span>Hello</span><p class="selected">Hello Again</p><p>And Again</p></div>
2124 * @result [ <p class="selected">Hello Again</p> ]
2125 * @desc Find all children with a class "selected" of each div.
2129 * @param String expr (optional) An expression to filter the child Elements with
2130 * @cat DOM/Traversing
2133 parent: "a.parentNode",
2134 parents: "jQuery.parents(a)",
2135 next: "jQuery.nth(a,2,'nextSibling')",
2136 prev: "jQuery.nth(a,2,'previousSibling')",
2137 siblings: "jQuery.sibling(a.parentNode.firstChild,a)",
2138 children: "jQuery.sibling(a.firstChild)"
2140 jQuery.fn[ i ] = function(a) {
2141 var ret = jQuery.map(this,n);
2142 if ( a && typeof a == "string" )
2143 ret = jQuery.multiFilter(a,ret);
2144 return this.pushStack( jQuery.unique(ret) );
2149 * Append all of the matched elements to another, specified, set of elements.
2150 * This operation is, essentially, the reverse of doing a regular
2151 * $(A).append(B), in that instead of appending B to A, you're appending
2154 * @example $("p").appendTo("#foo");
2155 * @before <p>I would like to say: </p><div id="foo"></div>
2156 * @result <div id="foo"><p>I would like to say: </p></div>
2157 * @desc Appends all paragraphs to the element with the ID "foo"
2161 * @param <Content> content Content to append to the selected element to.
2162 * @cat DOM/Manipulation
2163 * @see append(<Content>)
2167 * Prepend all of the matched elements to another, specified, set of elements.
2168 * This operation is, essentially, the reverse of doing a regular
2169 * $(A).prepend(B), in that instead of prepending B to A, you're prepending
2172 * @example $("p").prependTo("#foo");
2173 * @before <p>I would like to say: </p><div id="foo"><b>Hello</b></div>
2174 * @result <div id="foo"><p>I would like to say: </p><b>Hello</b></div>
2175 * @desc Prepends all paragraphs to the element with the ID "foo"
2179 * @param <Content> content Content to prepend to the selected element to.
2180 * @cat DOM/Manipulation
2181 * @see prepend(<Content>)
2185 * Insert all of the matched elements before another, specified, set of elements.
2186 * This operation is, essentially, the reverse of doing a regular
2187 * $(A).before(B), in that instead of inserting B before A, you're inserting
2190 * @example $("p").insertBefore("#foo");
2191 * @before <div id="foo">Hello</div><p>I would like to say: </p>
2192 * @result <p>I would like to say: </p><div id="foo">Hello</div>
2193 * @desc Same as $("#foo").before("p")
2195 * @name insertBefore
2197 * @param <Content> content Content to insert the selected element before.
2198 * @cat DOM/Manipulation
2199 * @see before(<Content>)
2203 * Insert all of the matched elements after another, specified, set of elements.
2204 * This operation is, essentially, the reverse of doing a regular
2205 * $(A).after(B), in that instead of inserting B after A, you're inserting
2208 * @example $("p").insertAfter("#foo");
2209 * @before <p>I would like to say: </p><div id="foo">Hello</div>
2210 * @result <div id="foo">Hello</div><p>I would like to say: </p>
2211 * @desc Same as $("#foo").after("p")
2215 * @param <Content> content Content to insert the selected element after.
2216 * @cat DOM/Manipulation
2217 * @see after(<Content>)
2222 prependTo: "prepend",
2223 insertBefore: "before",
2224 insertAfter: "after"
2226 jQuery.fn[ i ] = function(){
2228 return this.each(function(){
2229 for ( var j = 0, al = a.length; j < al; j++ )
2230 jQuery(a[j])[n]( this );
2236 * Remove an attribute from each of the matched elements.
2238 * @example $("input").removeAttr("disabled")
2239 * @before <input disabled="disabled"/>
2244 * @param String name The name of the attribute to remove.
2245 * @cat DOM/Attributes
2249 * Adds the specified class(es) to each of the set of matched elements.
2251 * @example $("p").addClass("selected")
2252 * @before <p>Hello</p>
2253 * @result [ <p class="selected">Hello</p> ]
2255 * @example $("p").addClass("selected highlight")
2256 * @before <p>Hello</p>
2257 * @result [ <p class="selected highlight">Hello</p> ]
2261 * @param String class One or more CSS classes to add to the elements
2262 * @cat DOM/Attributes
2263 * @see removeClass(String)
2267 * Removes all or the specified class(es) from the set of matched elements.
2269 * @example $("p").removeClass()
2270 * @before <p class="selected">Hello</p>
2271 * @result [ <p>Hello</p> ]
2273 * @example $("p").removeClass("selected")
2274 * @before <p class="selected first">Hello</p>
2275 * @result [ <p class="first">Hello</p> ]
2277 * @example $("p").removeClass("selected highlight")
2278 * @before <p class="highlight selected first">Hello</p>
2279 * @result [ <p class="first">Hello</p> ]
2283 * @param String class (optional) One or more CSS classes to remove from the elements
2284 * @cat DOM/Attributes
2285 * @see addClass(String)
2289 * Adds the specified class if it is not present, removes it if it is
2292 * @example $("p").toggleClass("selected")
2293 * @before <p>Hello</p><p class="selected">Hello Again</p>
2294 * @result [ <p class="selected">Hello</p>, <p>Hello Again</p> ]
2298 * @param String class A CSS class with which to toggle the elements
2299 * @cat DOM/Attributes
2303 * Removes all matched elements from the DOM. This does NOT remove them from the
2304 * jQuery object, allowing you to use the matched elements further.
2306 * Can be filtered with an optional expressions.
2308 * @example $("p").remove();
2309 * @before <p>Hello</p> how are <p>you?</p>
2312 * @example $("p").remove(".hello");
2313 * @before <p class="hello">Hello</p> how are <p>you?</p>
2314 * @result how are <p>you?</p>
2318 * @param String expr (optional) A jQuery expression to filter elements by.
2319 * @cat DOM/Manipulation
2323 * Removes all child nodes from the set of matched elements.
2325 * @example $("p").empty()
2326 * @before <p>Hello, <span>Person</span> <a href="#">and person</a></p>
2327 * @result [ <p></p> ]
2331 * @cat DOM/Manipulation
2335 removeAttr: function( key ) {
2336 jQuery.attr( this, key, "" );
2337 this.removeAttribute( key );
2339 addClass: function(c){
2340 jQuery.className.add(this,c);
2342 removeClass: function(c){
2343 jQuery.className.remove(this,c);
2345 toggleClass: function( c ){
2346 jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
2348 remove: function(a){
2349 if ( !a || jQuery.filter( a, [this] ).r.length )
2350 this.parentNode.removeChild( this );
2353 while ( this.firstChild )
2354 this.removeChild( this.firstChild );
2357 jQuery.fn[ i ] = function() {
2358 return this.each( n, arguments );
2363 * Reduce the set of matched elements to a single element.
2364 * The position of the element in the set of matched elements
2365 * starts at 0 and goes to length - 1.
2367 * @example $("p").eq(1)
2368 * @before <p>This is just a test.</p><p>So is this</p>
2369 * @result [ <p>So is this</p> ]
2373 * @param Number pos The index of the element that you wish to limit to.
2378 * Reduce the set of matched elements to all elements before a given position.
2379 * The position of the element in the set of matched elements
2380 * starts at 0 and goes to length - 1.
2382 * @example $("p").lt(1)
2383 * @before <p>This is just a test.</p><p>So is this</p>
2384 * @result [ <p>This is just a test.</p> ]
2388 * @param Number pos Reduce the set to all elements below this position.
2393 * Reduce the set of matched elements to all elements after a given position.
2394 * The position of the element in the set of matched elements
2395 * starts at 0 and goes to length - 1.
2397 * @example $("p").gt(0)
2398 * @before <p>This is just a test.</p><p>So is this</p>
2399 * @result [ <p>So is this</p> ]
2403 * @param Number pos Reduce the set to all elements after this position.
2408 * Filter the set of elements to those that contain the specified text.
2410 * @example $("p").contains("test")
2411 * @before <p>This is just a test.</p><p>So is this</p>
2412 * @result [ <p>This is just a test.</p> ]
2416 * @param String str The string that will be contained within the text of an element.
2417 * @cat DOM/Traversing
2419 jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
2420 jQuery.fn[ n ] = function(num,fn) {
2421 return this.filter( ":" + n + "(" + num + ")", fn );
2426 * Get the current computed, pixel, width of the first matched element.
2428 * @example $("p").width();
2429 * @before <p>This is just a test.</p>
2438 * Set the CSS width of every matched element. If no explicit unit
2439 * was specified (like 'em' or '%') then "px" is added to the width.
2441 * @example $("p").width(20);
2442 * @before <p>This is just a test.</p>
2443 * @result <p style="width:20px;">This is just a test.</p>
2445 * @example $("p").width("20em");
2446 * @before <p>This is just a test.</p>
2447 * @result <p style="width:20em;">This is just a test.</p>
2451 * @param String|Number val Set the CSS property to the specified value.
2456 * Get the current computed, pixel, height of the first matched element.
2458 * @example $("p").height();
2459 * @before <p>This is just a test.</p>
2468 * Set the CSS height of every matched element. If no explicit unit
2469 * was specified (like 'em' or '%') then "px" is added to the width.
2471 * @example $("p").height(20);
2472 * @before <p>This is just a test.</p>
2473 * @result <p style="height:20px;">This is just a test.</p>
2475 * @example $("p").height("20em");
2476 * @before <p>This is just a test.</p>
2477 * @result <p style="height:20em;">This is just a test.</p>
2481 * @param String|Number val Set the CSS property to the specified value.
2485 jQuery.each( [ "height", "width" ], function(i,n){
2486 jQuery.fn[ n ] = function(h) {
2487 return h == undefined ?
2488 ( this.length ? jQuery.css( this[0], n ) : null ) :
2489 this.css( n, h.constructor == String ? h : h + "px" );