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.
12 // Global undefined variable
13 window.undefined = window.undefined;
16 * Create a new jQuery Object
21 * @param String|Function|Element|Array<Element>|jQuery a selector
22 * @param jQuery|Element|Array<Element> c context
25 var jQuery = function(a,c) {
26 // If the context is global, return a new object
27 if ( window == this || !this.init )
28 return new jQuery(a,c);
30 return this.init(a,c);
33 // Map over the $ in case of overwrite
34 if ( typeof $ != "undefined" )
37 // Map the jQuery namespace to the '$' one
41 * This function accepts a string containing a CSS or
42 * basic XPath selector which is then used to match a set of elements.
44 * The core functionality of jQuery centers around this function.
45 * Everything in jQuery is based upon this, or uses this in some way.
46 * The most basic use of this function is to pass in an expression
47 * (usually consisting of CSS or XPath), which then finds all matching
50 * By default, if no context is specified, $() looks for DOM elements within the context of the
51 * current HTML document. If you do specify a context, such as a DOM
52 * element or jQuery object, the expression will be matched against
53 * the contents of that context.
55 * See [[DOM/Traversing/Selectors]] for the allowed CSS/XPath syntax for expressions.
57 * @example $("div > p")
58 * @desc Finds all p elements that are children of a div element.
59 * @before <p>one</p> <div><p>two</p></div> <p>three</p>
60 * @result [ <p>two</p> ]
62 * @example $("input:radio", document.forms[0])
63 * @desc Searches for all inputs of type radio within the first form in the document
65 * @example $("div", xml.responseXML)
66 * @desc This finds all div elements within the specified XML document.
69 * @param String expr An expression to search with
70 * @param Element|jQuery context (optional) A DOM Element, Document or jQuery to use as context
74 * @see $(Element<Array>)
78 * Create DOM elements on-the-fly from the provided String of raw HTML.
80 * @example $("<div><p>Hello</p></div>").appendTo("body")
81 * @desc Creates a div element (and all of its contents) dynamically,
82 * and appends it to the body element. Internally, an
83 * element is created and its innerHTML property set to the given markup.
84 * It is therefore both quite flexible and limited.
87 * @param String html A string of HTML to create on the fly.
90 * @see appendTo(String)
94 * Wrap jQuery functionality around a single or multiple DOM Element(s).
96 * This function also accepts XML Documents and Window objects
97 * as valid arguments (even though they are not DOM Elements).
99 * @example $(document.body).css( "background", "black" );
100 * @desc Sets the background color of the page to black.
102 * @example $( myForm.elements ).hide()
103 * @desc Hides all the input elements within a form
106 * @param Element|Array<Element> elems DOM element(s) to be encapsulated by a jQuery object.
112 * A shorthand for $(document).ready(), allowing you to bind a function
113 * to be executed when the DOM document has finished loading. This function
114 * behaves just like $(document).ready(), in that it should be used to wrap
115 * other $() operations on your page that depend on the DOM being ready to be
116 * operated on. While this function is, technically, chainable - there really
117 * isn't much use for chaining against it.
119 * You can have as many $(document).ready events on your page as you like.
121 * See ready(Function) for details about the ready event.
123 * @example $(function(){
124 * // Document is ready
126 * @desc Executes the function when the DOM is ready to be used.
128 * @example jQuery(function($) {
129 * // Your code using failsafe $ alias here...
131 * @desc Uses both the shortcut for $(document).ready() and the argument
132 * to write failsafe jQuery code using the $ alias, without relying on the
136 * @param Function fn The function to execute when the DOM is ready.
139 * @see ready(Function)
142 jQuery.fn = jQuery.prototype = {
144 * Initialize a new jQuery object
148 * @param String|Function|Element|Array<Element>|jQuery a selector
149 * @param jQuery|Element|Array<Element> c context
152 init: function(a,c) {
153 // Make sure that a selection was provided
156 // HANDLE: $(function)
157 // Shortcut for document ready
158 if ( jQuery.isFunction(a) )
159 return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
161 // Handle HTML strings
162 if ( typeof a == "string" ) {
163 // HANDLE: $(html) -> $(array)
164 var m = /^[^<]*(<(.|\s)+>)[^>]*$/.exec(a);
166 a = jQuery.clean( [ m[1] ] );
170 return new jQuery( c ).find( a );
173 return this.setArray(
175 a.constructor == Array && a ||
177 // HANDLE: $(arraylike)
178 // Watch for when an array-like object is passed as the selector
179 (a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||
186 * The current version of jQuery.
197 * The number of elements currently matched. The size function will return the same value.
199 * @example $("img").length;
200 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
210 * Get the number of elements currently matched. This returns the same
211 * number as the 'length' property of the jQuery object.
213 * @example $("img").size();
214 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
228 * Access all matched DOM elements. This serves as a backwards-compatible
229 * way of accessing all matched elements (other than the jQuery object
230 * itself, which is, in fact, an array of elements).
232 * It is useful if you need to operate on the DOM elements themselves instead of using built-in jQuery functions.
234 * @example $("img").get();
235 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
236 * @result [ <img src="test1.jpg"/> <img src="test2.jpg"/> ]
237 * @desc Selects all images in the document and returns the DOM Elements as an Array
240 * @type Array<Element>
245 * Access a single matched DOM element at a specified index in the matched set.
246 * This allows you to extract the actual DOM element and operate on it
247 * directly without necessarily using jQuery functionality on it.
249 * @example $("img").get(0);
250 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
251 * @result <img src="test1.jpg"/>
252 * @desc Selects all images in the document and returns the first one
256 * @param Number num Access the element in the Nth position.
259 get: function( num ) {
260 return num == undefined ?
262 // Return a 'clean' array
263 jQuery.makeArray( this ) :
265 // Return just the object
270 * Set the jQuery object to an array of elements, while maintaining
273 * @example $("img").pushStack([ document.body ]);
274 * @result $("img").pushStack() == [ document.body ]
279 * @param Elements elems An array of elements
282 pushStack: function( a ) {
284 ret.prevObject = this;
289 * Set the jQuery object to an array of elements. This operation is
290 * completely destructive - be sure to use .pushStack() if you wish to maintain
293 * @example $("img").setArray([ document.body ]);
294 * @result $("img").setArray() == [ document.body ]
299 * @param Elements elems An array of elements
302 setArray: function( a ) {
304 [].push.apply( this, a );
309 * Execute a function within the context of every matched element.
310 * This means that every time the passed-in function is executed
311 * (which is once for every element matched) the 'this' keyword
312 * points to the specific DOM element.
314 * Additionally, the function, when executed, is passed a single
315 * argument representing the position of the element in the matched
316 * set (integer, zero-index).
318 * @example $("img").each(function(i){
319 * this.src = "test" + i + ".jpg";
321 * @before <img/><img/>
322 * @result <img src="test0.jpg"/><img src="test1.jpg"/>
323 * @desc Iterates over two images and sets their src property
327 * @param Function fn A function to execute
330 each: function( fn, args ) {
331 return jQuery.each( this, fn, args );
335 * Searches every matched element for the object and returns
336 * the index of the element, if found, starting with zero.
337 * Returns -1 if the object wasn't found.
339 * @example $("*").index( $('#foobar')[0] )
340 * @before <div id="foobar"><b></b><span id="foo"></span></div>
342 * @desc Returns the index for the element with ID foobar
344 * @example $("*").index( $('#foo')[0] )
345 * @before <div id="foobar"><b></b><span id="foo"></span></div>
347 * @desc Returns the index for the element with ID foo within another element
349 * @example $("*").index( $('#bar')[0] )
350 * @before <div id="foobar"><b></b><span id="foo"></span></div>
352 * @desc Returns -1, as there is no element with ID bar
356 * @param Element subject Object to search for
359 index: function( obj ) {
361 this.each(function(i){
362 if ( this == obj ) pos = i;
368 * Access a property on the first matched element.
369 * This method makes it easy to retrieve a property value
370 * from the first matched element.
372 * If the element does not have an attribute with such a
373 * name, undefined is returned.
375 * @example $("img").attr("src");
376 * @before <img src="test.jpg"/>
378 * @desc Returns the src attribute from the first image in the document.
382 * @param String name The name of the property to access.
383 * @cat DOM/Attributes
387 * Set a key/value object as properties to all matched elements.
389 * This serves as the best way to set a large number of properties
390 * on all matched elements.
392 * @example $("img").attr({ src: "test.jpg", alt: "Test Image" });
394 * @result <img src="test.jpg" alt="Test Image"/>
395 * @desc Sets src and alt attributes to all images.
399 * @param Map properties Key/value pairs to set as object properties.
400 * @cat DOM/Attributes
404 * Set a single property to a value, on all matched elements.
406 * Note that you can't set the name property of input elements in IE.
407 * Use $(html) or .append(html) or .html(html) to create elements
408 * on the fly including the name property.
410 * @example $("img").attr("src","test.jpg");
412 * @result <img src="test.jpg"/>
413 * @desc Sets src attribute to all images.
417 * @param String key The name of the property to set.
418 * @param Object value The value to set the property to.
419 * @cat DOM/Attributes
423 * Set a single property to a computed value, on all matched elements.
425 * Instead of supplying a string value as described
426 * [[DOM/Attributes#attr.28_key.2C_value_.29|above]],
427 * a function is provided that computes the value.
429 * @example $("img").attr("title", function() { return this.src });
430 * @before <img src="test.jpg" />
431 * @result <img src="test.jpg" title="test.jpg" />
432 * @desc Sets title attribute from src attribute.
434 * @example $("img").attr("title", function(index) { return this.title + (i + 1); });
435 * @before <img title="pic" /><img title="pic" /><img title="pic" />
436 * @result <img title="pic1" /><img title="pic2" /><img title="pic3" />
437 * @desc Enumerate title attribute.
441 * @param String key The name of the property to set.
442 * @param Function value A function returning the value to set.
443 * Scope: Current element, argument: Index of current element
444 * @cat DOM/Attributes
446 attr: function( key, value, type ) {
449 // Look for the case where we're accessing a style value
450 if ( key.constructor == String )
451 if ( value == undefined )
452 return this.length && jQuery[ type || "attr" ]( this[0], key ) || undefined;
458 // Check to see if we're setting style values
459 return this.each(function(index){
460 // Set all the styles
461 for ( var prop in obj )
463 type ? this.style : this,
464 prop, jQuery.prop(this, obj[prop], type, index, prop)
470 * Access a style property on the first matched element.
471 * This method makes it easy to retrieve a style property value
472 * from the first matched element.
474 * @example $("p").css("color");
475 * @before <p style="color:red;">Test Paragraph.</p>
477 * @desc Retrieves the color style of the first paragraph
479 * @example $("p").css("font-weight");
480 * @before <p style="font-weight: bold;">Test Paragraph.</p>
482 * @desc Retrieves the font-weight style of the first paragraph.
486 * @param String name The name of the property to access.
491 * Set a key/value object as style properties to all matched elements.
493 * This serves as the best way to set a large number of style properties
494 * on all matched elements.
496 * @example $("p").css({ color: "red", background: "blue" });
497 * @before <p>Test Paragraph.</p>
498 * @result <p style="color:red; background:blue;">Test Paragraph.</p>
499 * @desc Sets color and background styles to all p elements.
503 * @param Map properties Key/value pairs to set as style properties.
508 * Set a single style property to a value, on all matched elements.
509 * If a number is provided, it is automatically converted into a pixel value.
511 * @example $("p").css("color","red");
512 * @before <p>Test Paragraph.</p>
513 * @result <p style="color:red;">Test Paragraph.</p>
514 * @desc Changes the color of all paragraphs to red
516 * @example $("p").css("left",30);
517 * @before <p>Test Paragraph.</p>
518 * @result <p style="left:30px;">Test Paragraph.</p>
519 * @desc Changes the left of all paragraphs to "30px"
523 * @param String key The name of the property to set.
524 * @param String|Number value The value to set the property to.
527 css: function( key, value ) {
528 return this.attr( key, value, "curCSS" );
532 * Get the text contents of all matched elements. The result is
533 * a string that contains the combined text contents of all matched
534 * elements. This method works on both HTML and XML documents.
536 * @example $("p").text();
537 * @before <p><b>Test</b> Paragraph.</p><p>Paraparagraph</p>
538 * @result Test Paragraph.Paraparagraph
539 * @desc Gets the concatenated text of all paragraphs
543 * @cat DOM/Attributes
547 * Set the text contents of all matched elements.
549 * Similar to html(), but escapes HTML (replace "<" and ">" with their
552 * @example $("p").text("<b>Some</b> new text.");
553 * @before <p>Test Paragraph.</p>
554 * @result <p><b>Some</b> new text.</p>
555 * @desc Sets the text of all paragraphs.
557 * @example $("p").text("<b>Some</b> new text.", true);
558 * @before <p>Test Paragraph.</p>
559 * @result <p>Some new text.</p>
560 * @desc Sets the text of all paragraphs.
564 * @param String val The text value to set the contents of the element to.
565 * @cat DOM/Attributes
568 if ( typeof e != "object" && e != null )
569 return this.empty().append( document.createTextNode( e ) );
572 jQuery.each( e || this, function(){
573 jQuery.each( this.childNodes, function(){
574 if ( this.nodeType != 8 )
575 t += this.nodeType != 1 ?
576 this.nodeValue : jQuery.fn.text([ this ]);
583 * Wrap all matched elements with a structure of other elements.
584 * This wrapping process is most useful for injecting additional
585 * stucture into a document, without ruining the original semantic
586 * qualities of a document.
588 * This works by going through the first element
589 * provided (which is generated, on the fly, from the provided HTML)
590 * and finds the deepest ancestor element within its
591 * structure - it is that element that will en-wrap everything else.
593 * This does not work with elements that contain text. Any necessary text
594 * must be added after the wrapping is done.
596 * @example $("p").wrap("<div class='wrap'></div>");
597 * @before <p>Test Paragraph.</p>
598 * @result <div class='wrap'><p>Test Paragraph.</p></div>
602 * @param String html A string of HTML, that will be created on the fly and wrapped around the target.
603 * @cat DOM/Manipulation
607 * Wrap all matched elements with a structure of other elements.
608 * This wrapping process is most useful for injecting additional
609 * stucture into a document, without ruining the original semantic
610 * qualities of a document.
612 * This works by going through the first element
613 * provided and finding the deepest ancestor element within its
614 * structure - it is that element that will en-wrap everything else.
616 * This does not work with elements that contain text. Any necessary text
617 * must be added after the wrapping is done.
619 * @example $("p").wrap( document.getElementById('content') );
620 * @before <p>Test Paragraph.</p><div id="content"></div>
621 * @result <div id="content"><p>Test Paragraph.</p></div>
625 * @param Element elem A DOM element that will be wrapped around the target.
626 * @cat DOM/Manipulation
629 // The elements to wrap the target around
630 var a, args = arguments;
632 // Wrap each of the matched elements individually
633 return this.each(function(){
635 a = jQuery.clean(args, this.ownerDocument);
637 // Clone the structure that we're using to wrap
638 var b = a[0].cloneNode(true);
640 // Insert it before the element to be wrapped
641 this.parentNode.insertBefore( b, this );
643 // Find the deepest point in the wrap structure
644 while ( b.firstChild )
647 // Move the matched element to within the wrap structure
648 b.appendChild( this );
653 * Append content to the inside of every matched element.
655 * This operation is similar to doing an appendChild to all the
656 * specified elements, adding them into the document.
658 * @example $("p").append("<b>Hello</b>");
659 * @before <p>I would like to say: </p>
660 * @result <p>I would like to say: <b>Hello</b></p>
661 * @desc Appends some HTML to all paragraphs.
663 * @example $("p").append( $("#foo")[0] );
664 * @before <p>I would like to say: </p><b id="foo">Hello</b>
665 * @result <p>I would like to say: <b id="foo">Hello</b></p>
666 * @desc Appends an Element to all paragraphs.
668 * @example $("p").append( $("b") );
669 * @before <p>I would like to say: </p><b>Hello</b>
670 * @result <p>I would like to say: <b>Hello</b></p>
671 * @desc Appends a jQuery object (similar to an Array of DOM Elements) to all paragraphs.
675 * @param <Content> content Content to append to the target
676 * @cat DOM/Manipulation
677 * @see prepend(<Content>)
678 * @see before(<Content>)
679 * @see after(<Content>)
682 return this.domManip(arguments, true, 1, function(a){
683 this.appendChild( a );
688 * Prepend content to the inside of every matched element.
690 * This operation is the best way to insert elements
691 * inside, at the beginning, of all matched elements.
693 * @example $("p").prepend("<b>Hello</b>");
694 * @before <p>I would like to say: </p>
695 * @result <p><b>Hello</b>I would like to say: </p>
696 * @desc Prepends some HTML to all paragraphs.
698 * @example $("p").prepend( $("#foo")[0] );
699 * @before <p>I would like to say: </p><b id="foo">Hello</b>
700 * @result <p><b id="foo">Hello</b>I would like to say: </p>
701 * @desc Prepends an Element to all paragraphs.
703 * @example $("p").prepend( $("b") );
704 * @before <p>I would like to say: </p><b>Hello</b>
705 * @result <p><b>Hello</b>I would like to say: </p>
706 * @desc Prepends a jQuery object (similar to an Array of DOM Elements) to all paragraphs.
710 * @param <Content> content Content to prepend to the target.
711 * @cat DOM/Manipulation
712 * @see append(<Content>)
713 * @see before(<Content>)
714 * @see after(<Content>)
716 prepend: function() {
717 return this.domManip(arguments, true, -1, function(a){
718 this.insertBefore( a, this.firstChild );
723 * Insert content before each of the matched elements.
725 * @example $("p").before("<b>Hello</b>");
726 * @before <p>I would like to say: </p>
727 * @result <b>Hello</b><p>I would like to say: </p>
728 * @desc Inserts some HTML before all paragraphs.
730 * @example $("p").before( $("#foo")[0] );
731 * @before <p>I would like to say: </p><b id="foo">Hello</b>
732 * @result <b id="foo">Hello</b><p>I would like to say: </p>
733 * @desc Inserts an Element before all paragraphs.
735 * @example $("p").before( $("b") );
736 * @before <p>I would like to say: </p><b>Hello</b>
737 * @result <b>Hello</b><p>I would like to say: </p>
738 * @desc Inserts a jQuery object (similar to an Array of DOM Elements) before all paragraphs.
742 * @param <Content> content Content to insert before each target.
743 * @cat DOM/Manipulation
744 * @see append(<Content>)
745 * @see prepend(<Content>)
746 * @see after(<Content>)
749 return this.domManip(arguments, false, 1, function(a){
750 this.parentNode.insertBefore( a, this );
755 * Insert content after each of the matched elements.
757 * @example $("p").after("<b>Hello</b>");
758 * @before <p>I would like to say: </p>
759 * @result <p>I would like to say: </p><b>Hello</b>
760 * @desc Inserts some HTML after all paragraphs.
762 * @example $("p").after( $("#foo")[0] );
763 * @before <b id="foo">Hello</b><p>I would like to say: </p>
764 * @result <p>I would like to say: </p><b id="foo">Hello</b>
765 * @desc Inserts an Element after all paragraphs.
767 * @example $("p").after( $("b") );
768 * @before <b>Hello</b><p>I would like to say: </p>
769 * @result <p>I would like to say: </p><b>Hello</b>
770 * @desc Inserts a jQuery object (similar to an Array of DOM Elements) after all paragraphs.
774 * @param <Content> content Content to insert after each target.
775 * @cat DOM/Manipulation
776 * @see append(<Content>)
777 * @see prepend(<Content>)
778 * @see before(<Content>)
781 return this.domManip(arguments, false, -1, function(a){
782 this.parentNode.insertBefore( a, this.nextSibling );
787 * Revert the most recent 'destructive' operation, changing the set of matched elements
788 * to its previous state (right before the destructive operation).
790 * If there was no destructive operation before, an empty set is returned.
792 * A 'destructive' operation is any operation that changes the set of
793 * matched jQuery elements. These functions are: <code>add</code>,
794 * <code>children</code>, <code>clone</code>, <code>filter</code>,
795 * <code>find</code>, <code>not</code>, <code>next</code>,
796 * <code>parent</code>, <code>parents</code>, <code>prev</code> and <code>siblings</code>.
798 * @example $("p").find("span").end();
799 * @before <p><span>Hello</span>, how are you?</p>
800 * @result [ <p>...</p> ]
801 * @desc Selects all paragraphs, finds span elements inside these, and reverts the
802 * selection back to the paragraphs.
806 * @cat DOM/Traversing
809 return this.prevObject || jQuery([]);
813 * Searches for all elements that match the specified expression.
815 * This method is a good way to find additional descendant
816 * elements with which to process.
818 * All searching is done using a jQuery expression. The expression can be
819 * written using CSS 1-3 Selector syntax, or basic XPath.
821 * @example $("p").find("span");
822 * @before <p><span>Hello</span>, how are you?</p>
823 * @result [ <span>Hello</span> ]
824 * @desc Starts with all paragraphs and searches for descendant span
825 * elements, same as $("p span")
829 * @param String expr An expression to search with.
830 * @cat DOM/Traversing
833 var data = jQuery.map(this, function(a){ return jQuery.find(t,a); });
834 return this.pushStack( /[^+>] [^+>]/.test( t ) || t.indexOf("..") > -1 ?
835 jQuery.unique( data ) : data );
839 * Clone matched DOM Elements and select the clones.
841 * This is useful for moving copies of the elements to another
842 * location in the DOM.
844 * @example $("b").clone().prependTo("p");
845 * @before <b>Hello</b><p>, how are you?</p>
846 * @result <b>Hello</b><p><b>Hello</b>, how are you?</p>
847 * @desc Clones all b elements (and selects the clones) and prepends them to all paragraphs.
851 * @param Boolean deep (Optional) Set to false if you don't want to clone all descendant nodes, in addition to the element itself.
852 * @cat DOM/Manipulation
854 clone: function(deep) {
855 deep = deep != undefined ? deep : true;
856 var $this = this.add(this.find("*"));
857 if (jQuery.browser.msie) {
858 // Need to remove events on the element and its descendants
859 $this.each(function() {
861 for (var type in this.$events)
862 this._$events[type] = jQuery.extend({},this.$events[type]);
867 var r = this.pushStack( jQuery.map( this, function(a){
868 return a.cloneNode( deep );
871 if (jQuery.browser.msie) {
872 $this.each(function() {
873 // Add the events back to the original and its descendants
874 var events = this._$events;
875 for (var type in events)
876 for (var handler in events[type])
877 jQuery.event.add(this, type, events[type][handler], events[type][handler].data);
878 this._$events = null;
882 // copy form values over
884 var inputs = r.add(r.find('*')).filter('select,input[@type=checkbox]');
885 $this.filter('select,input[@type=checkbox]').each(function(i) {
886 if (this.selectedIndex)
887 inputs[i].selectedIndex = this.selectedIndex;
889 inputs[i].checked = true;
893 // Return the cloned set
898 * Removes all elements from the set of matched elements that do not
899 * match the specified expression(s). This method is used to narrow down
900 * the results of a search.
902 * Provide a comma-separated list of expressions to apply multiple filters at once.
904 * @example $("p").filter(".selected")
905 * @before <p class="selected">Hello</p><p>How are you?</p>
906 * @result [ <p class="selected">Hello</p> ]
907 * @desc Selects all paragraphs and removes those without a class "selected".
909 * @example $("p").filter(".selected, :first")
910 * @before <p>Hello</p><p>Hello Again</p><p class="selected">And Again</p>
911 * @result [ <p>Hello</p>, <p class="selected">And Again</p> ]
912 * @desc Selects all paragraphs and removes those without class "selected" and being the first one.
916 * @param String expression Expression(s) to search with.
917 * @cat DOM/Traversing
921 * Removes all elements from the set of matched elements that do not
922 * pass the specified filter. This method is used to narrow down
923 * the results of a search.
925 * @example $("p").filter(function(index) {
926 * return $("ol", this).length == 0;
928 * @before <p><ol><li>Hello</li></ol></p><p>How are you?</p>
929 * @result [ <p>How are you?</p> ]
930 * @desc Remove all elements that have a child ol element
934 * @param Function filter A function to use for filtering
935 * @cat DOM/Traversing
937 filter: function(t) {
938 return this.pushStack(
939 jQuery.isFunction( t ) &&
940 jQuery.grep(this, function(el, index){
941 return t.apply(el, [index]);
944 jQuery.multiFilter(t,this) );
948 * Removes the specified Element from the set of matched elements. This
949 * method is used to remove a single Element from a jQuery object.
951 * @example $("p").not( $("#selected")[0] )
952 * @before <p>Hello</p><p id="selected">Hello Again</p>
953 * @result [ <p>Hello</p> ]
954 * @desc Removes the element with the ID "selected" from the set of all paragraphs.
958 * @param Element el An element to remove from the set
959 * @cat DOM/Traversing
963 * Removes elements matching the specified expression from the set
964 * of matched elements. This method is used to remove one or more
965 * elements from a jQuery object.
967 * @example $("p").not("#selected")
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 String expr An expression with which to remove matching elements
975 * @cat DOM/Traversing
979 * Removes any elements inside the array of elements from the set
980 * of matched elements. This method is used to remove one or more
981 * elements from a jQuery object.
983 * Please note: the expression cannot use a reference to the
984 * element name. See the two examples below.
986 * @example $("p").not( $("div p.selected") )
987 * @before <div><p>Hello</p><p class="selected">Hello Again</p></div>
988 * @result [ <p>Hello</p> ]
989 * @desc Removes all elements that match "div p.selected" from the total set of all paragraphs.
993 * @param jQuery elems A set of elements to remove from the jQuery set of matched elements.
994 * @cat DOM/Traversing
997 return this.pushStack(
998 t.constructor == String &&
999 jQuery.multiFilter(t, this, true) ||
1001 jQuery.grep(this, function(a) {
1002 return ( t.constructor == Array || t.jquery )
1003 ? jQuery.inArray( a, t ) < 0
1010 * Adds more elements, matched by the given expression,
1011 * to the set of matched elements.
1013 * @example $("p").add("span")
1014 * @before (HTML) <p>Hello</p><span>Hello Again</span>
1015 * @result (jQuery object matching 2 elements) [ <p>Hello</p>, <span>Hello Again</span> ]
1016 * @desc Compare the above result to the result of <code>$('p')</code>,
1017 * which would just result in <code><nowiki>[ <p>Hello</p> ]</nowiki></code>.
1018 * Using add(), matched elements of <code>$('span')</code> are simply
1019 * added to the returned jQuery-object.
1023 * @param String expr An expression whose matched elements are added
1024 * @cat DOM/Traversing
1028 * Adds more elements, created on the fly, to the set of
1031 * @example $("p").add("<span>Again</span>")
1032 * @before <p>Hello</p>
1033 * @result [ <p>Hello</p>, <span>Again</span> ]
1037 * @param String html A string of HTML to create on the fly.
1038 * @cat DOM/Traversing
1042 * Adds one or more Elements to the set of matched elements.
1044 * @example $("p").add( document.getElementById("a") )
1045 * @before <p>Hello</p><p><span id="a">Hello Again</span></p>
1046 * @result [ <p>Hello</p>, <span id="a">Hello Again</span> ]
1048 * @example $("p").add( document.forms[0].elements )
1049 * @before <p>Hello</p><p><form><input/><button/></form>
1050 * @result [ <p>Hello</p>, <input/>, <button/> ]
1054 * @param Element|Array<Element> elements One or more Elements to add
1055 * @cat DOM/Traversing
1058 return this.pushStack( jQuery.merge(
1060 t.constructor == String ?
1062 t.length != undefined && (!t.nodeName || t.nodeName == "FORM") ?
1068 * Checks the current selection against an expression and returns true,
1069 * if at least one element of the selection fits the given expression.
1071 * Does return false, if no element fits or the expression is not valid.
1073 * filter(String) is used internally, therefore all rules that apply there
1076 * @example $("input[@type='checkbox']").parent().is("form")
1077 * @before <form><input type="checkbox" /></form>
1079 * @desc Returns true, because the parent of the input is a form element
1081 * @example $("input[@type='checkbox']").parent().is("form")
1082 * @before <form><p><input type="checkbox" /></p></form>
1084 * @desc Returns false, because the parent of the input is a p element
1088 * @param String expr The expression with which to filter
1089 * @cat DOM/Traversing
1091 is: function(expr) {
1092 return expr ? jQuery.multiFilter(expr,this).length > 0 : false;
1096 * Get the content of the value attribute of the first matched element.
1098 * Use caution when relying on this function to check the value of
1099 * multiple-select elements and checkboxes in a form. While it will
1100 * still work as intended, it may not accurately represent the value
1101 * the server will receive because these elements may send an array
1102 * of values. For more robust handling of field values, see the
1103 * [http://www.malsup.com/jquery/form/#fields fieldValue function of the Form Plugin].
1105 * @example $("input").val();
1106 * @before <input type="text" value="some text"/>
1107 * @result "some text"
1111 * @cat DOM/Attributes
1115 * Set the value attribute of every matched element.
1117 * @example $("input").val("test");
1118 * @before <input type="text" value="some text"/>
1119 * @result <input type="text" value="test"/>
1123 * @param String val Set the property to the specified value.
1124 * @cat DOM/Attributes
1126 val: function( val ) {
1127 return val == undefined ?
1128 ( this.length ? this[0].value : null ) :
1129 this.attr( "value", val );
1133 * Get the html contents of the first matched element.
1134 * This property is not available on XML documents.
1136 * @example $("div").html();
1137 * @before <div><input/></div>
1142 * @cat DOM/Attributes
1146 * Set the html contents of every matched element.
1147 * This property is not available on XML documents.
1149 * @example $("div").html("<b>new stuff</b>");
1150 * @before <div><input/></div>
1151 * @result <div><b>new stuff</b></div>
1155 * @param String val Set the html contents to the specified value.
1156 * @cat DOM/Attributes
1158 html: function( val ) {
1159 return val == undefined ?
1160 ( this.length ? this[0].innerHTML : null ) :
1161 this.empty().append( val );
1168 * @param Boolean table Insert TBODY in TABLEs if one is not found.
1169 * @param Number dir If dir<0, process args in reverse order.
1170 * @param Function fn The function doing the DOM manipulation.
1174 domManip: function(args, table, dir, fn){
1175 var clone = this.length > 1, a;
1177 return this.each(function(){
1179 a = jQuery.clean(args, this.ownerDocument);
1186 if ( table && jQuery.nodeName(this, "table") && jQuery.nodeName(a[0], "tr") )
1187 obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));
1189 jQuery.each( a, function(){
1190 if ( jQuery.nodeName(this, "script") ) {
1192 jQuery.ajax({ url: this.src, async: false, dataType: "script" });
1194 jQuery.globalEval( this.text || this.textContent || this.innerHTML || "" );
1196 fn.apply( obj, [ clone ? this.cloneNode(true) : this ] );
1203 * Extends the jQuery object itself. Can be used to add functions into
1204 * the jQuery namespace and to [[Plugins/Authoring|add plugin methods]] (plugins).
1206 * @example jQuery.fn.extend({
1207 * check: function() {
1208 * return this.each(function() { this.checked = true; });
1210 * uncheck: function() {
1211 * return this.each(function() { this.checked = false; });
1214 * $("input[@type=checkbox]").check();
1215 * $("input[@type=radio]").uncheck();
1216 * @desc Adds two plugin methods.
1218 * @example jQuery.extend({
1219 * min: function(a, b) { return a < b ? a : b; },
1220 * max: function(a, b) { return a > b ? a : b; }
1222 * @desc Adds two functions into the jQuery namespace
1225 * @param Object prop The object that will be merged into the jQuery object
1231 * Extend one object with one or more others, returning the original,
1232 * modified, object. This is a great utility for simple inheritance.
1234 * @example var settings = { validate: false, limit: 5, name: "foo" };
1235 * var options = { validate: true, name: "bar" };
1236 * jQuery.extend(settings, options);
1237 * @result settings == { validate: true, limit: 5, name: "bar" }
1238 * @desc Merge settings and options, modifying settings
1240 * @example var defaults = { validate: false, limit: 5, name: "foo" };
1241 * var options = { validate: true, name: "bar" };
1242 * var settings = jQuery.extend({}, defaults, options);
1243 * @result settings == { validate: true, limit: 5, name: "bar" }
1244 * @desc Merge defaults and options, without modifying the defaults
1247 * @param Object target The object to extend
1248 * @param Object prop1 The object that will be merged into the first.
1249 * @param Object propN (optional) More objects to merge into the first
1253 jQuery.extend = jQuery.fn.extend = function() {
1254 // copy reference to target object
1255 var target = arguments[0], a = 1;
1257 // extend jQuery itself if only one argument is passed
1258 if ( arguments.length == 1 ) {
1263 while ( (prop = arguments[a++]) != null )
1264 // Extend the base object
1265 for ( var i in prop ) target[i] = prop[i];
1267 // Return the modified object
1273 * Run this function to give control of the $ variable back
1274 * to whichever library first implemented it. This helps to make
1275 * sure that jQuery doesn't conflict with the $ object
1276 * of other libraries.
1278 * By using this function, you will only be able to access jQuery
1279 * using the 'jQuery' variable. For example, where you used to do
1280 * $("div p"), you now must do jQuery("div p").
1282 * @example jQuery.noConflict();
1283 * // Do something with jQuery
1284 * jQuery("div p").hide();
1285 * // Do something with another library's $()
1286 * $("content").style.display = 'none';
1287 * @desc Maps the original object that was referenced by $ back to $
1289 * @example jQuery.noConflict();
1292 * // more code using $ as alias to jQuery
1295 * // other code using $ as an alias to the other library
1296 * @desc Reverts the $ alias and then creates and executes a
1297 * function to provide the $ as a jQuery alias inside the functions
1298 * scope. Inside the function the original $ object is not available.
1299 * This works well for most plugins that don't rely on any other library.
1302 * @name $.noConflict
1306 noConflict: function() {
1312 // This may seem like some crazy code, but trust me when I say that this
1313 // is the only cross-browser way to do this. --John
1314 isFunction: function( fn ) {
1315 return !!fn && typeof fn != "string" && !fn.nodeName &&
1316 fn.constructor != Array && /function/i.test( fn + "" );
1319 // check if an element is in a XML document
1320 isXMLDoc: function(elem) {
1321 return elem.documentElement && !elem.body ||
1322 elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
1325 // Evalulates a script in a global context
1326 // Evaluates Async. in Safari 2 :-(
1327 globalEval: function( data ) {
1328 data = jQuery.trim( data );
1330 if ( window.execScript )
1331 window.execScript( data );
1332 else if ( jQuery.browser.safari )
1333 // safari doesn't provide a synchronous global eval
1334 window.setTimeout( data, 0 );
1336 eval.call( window, data );
1340 nodeName: function( elem, name ) {
1341 return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
1345 * A generic iterator function, which can be used to seamlessly
1346 * iterate over both objects and arrays. This function is not the same
1347 * as $().each() - which is used to iterate, exclusively, over a jQuery
1348 * object. This function can be used to iterate over anything.
1350 * The callback has two arguments:the key (objects) or index (arrays) as first
1351 * the first, and the value as the second.
1353 * @example $.each( [0,1,2], function(i, n){
1354 * alert( "Item #" + i + ": " + n );
1356 * @desc This is an example of iterating over the items in an array,
1357 * accessing both the current item and its index.
1359 * @example $.each( { name: "John", lang: "JS" }, function(i, n){
1360 * alert( "Name: " + i + ", Value: " + n );
1363 * @desc This is an example of iterating over the properties in an
1364 * Object, accessing both the current item and its key.
1367 * @param Object obj The object, or array, to iterate over.
1368 * @param Function fn The function that will be executed on every object.
1372 // args is for internal usage only
1373 each: function( obj, fn, args ) {
1374 if ( obj.length == undefined )
1375 for ( var i in obj )
1376 fn.apply( obj[i], args || [i, obj[i]] );
1378 for ( var i = 0, ol = obj.length; i < ol; i++ )
1379 if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
1383 prop: function(elem, value, type, index, prop){
1384 // Handle executable functions
1385 if ( jQuery.isFunction( value ) )
1386 value = value.call( elem, [index] );
1388 // exclude the following css properties to add px
1389 var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i;
1391 // Handle passing in a number to a CSS property
1392 return value && value.constructor == Number && type == "curCSS" && !exclude.test(prop) ?
1398 // internal only, use addClass("class")
1399 add: function( elem, c ){
1400 jQuery.each( (c || "").split(/\s+/), function(i, cur){
1401 if ( !jQuery.className.has( elem.className, cur ) )
1402 elem.className += ( elem.className ? " " : "" ) + cur;
1406 // internal only, use removeClass("class")
1407 remove: function( elem, c ){
1408 elem.className = c != undefined ?
1409 jQuery.grep( elem.className.split(/\s+/), function(cur){
1410 return !jQuery.className.has( c, cur );
1414 // internal only, use is(".class")
1415 has: function( t, c ) {
1416 return jQuery.inArray( c, (t.className || t).toString().split(/\s+/) ) > -1;
1421 * Swap in/out style options.
1424 swap: function(e,o,f) {
1425 for ( var i in o ) {
1426 e.style["old"+i] = e.style[i];
1431 e.style[i] = e.style["old"+i];
1434 css: function(e,p) {
1435 if ( p == "height" || p == "width" ) {
1436 var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
1438 jQuery.each( d, function(){
1439 old["padding" + this] = 0;
1440 old["border" + this + "Width"] = 0;
1443 jQuery.swap( e, old, function() {
1444 if ( jQuery(e).is(':visible') ) {
1445 oHeight = e.offsetHeight;
1446 oWidth = e.offsetWidth;
1448 e = jQuery(e.cloneNode(true))
1449 .find(":radio").removeAttr("checked").end()
1451 visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
1452 }).appendTo(e.parentNode)[0];
1454 var parPos = jQuery.css(e.parentNode,"position") || "static";
1455 if ( parPos == "static" )
1456 e.parentNode.style.position = "relative";
1458 oHeight = e.clientHeight;
1459 oWidth = e.clientWidth;
1461 if ( parPos == "static" )
1462 e.parentNode.style.position = "static";
1464 e.parentNode.removeChild(e);
1468 return p == "height" ? oHeight : oWidth;
1471 return jQuery.curCSS( e, p );
1474 curCSS: function(elem, prop, force) {
1475 var ret, stack = [], swap = [];
1477 // A helper method for determining if an element's values are broken
1479 if ( !jQuery.browser.safari )
1482 var ret = document.defaultView.getComputedStyle(a,null);
1483 return !ret || ret.getPropertyValue("color") == "";
1486 if (prop == "opacity" && jQuery.browser.msie) {
1487 ret = jQuery.attr(elem.style, "opacity");
1488 return ret == "" ? "1" : ret;
1491 if (prop.match(/float/i))
1492 prop = jQuery.styleFloat;
1494 if (!force && elem.style[prop])
1495 ret = elem.style[prop];
1497 else if (document.defaultView && document.defaultView.getComputedStyle) {
1499 if (prop.match(/float/i))
1502 prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
1503 var cur = document.defaultView.getComputedStyle(elem, null);
1505 if ( cur && !color(elem) )
1506 ret = cur.getPropertyValue(prop);
1508 // If the element isn't reporting its values properly in Safari
1509 // then some display: none elements are involved
1511 // Locate all of the parent display: none elements
1512 for ( var a = elem; color(a); a = a.parentNode )
1515 // Go through and make them visible, but in reverse
1516 // (It would be better if we knew the exact display type that they had)
1517 for ( a = 0; a < stack.length; a++ )
1518 if ( color(stack[a]) ) {
1519 swap[a] = stack[a].style.display;
1520 stack[a].style.display = "block";
1523 // Since we flip the display style, we have to handle that
1524 // one special, otherwise get the value
1525 ret = prop == "display" && swap[stack.length-1] != null ?
1527 document.defaultView.getComputedStyle(elem,null).getPropertyValue(prop) || "";
1529 // Finally, revert the display styles back
1530 for ( a = 0; a < swap.length; a++ )
1531 if ( swap[a] != null )
1532 stack[a].style.display = swap[a];
1535 if ( prop == "opacity" && ret == "" )
1538 } else if (elem.currentStyle) {
1539 var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
1540 ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
1546 clean: function(a, doc) {
1548 doc = doc || document;
1550 jQuery.each( a, function(i,arg){
1553 if ( arg.constructor == Number )
1554 arg = arg.toString();
1556 // Convert html string into DOM nodes
1557 if ( typeof arg == "string" ) {
1558 // Trim whitespace, otherwise indexOf won't work as expected
1559 var s = jQuery.trim(arg).toLowerCase(), div = doc.createElement("div"), tb = [];
1562 // option or optgroup
1563 !s.indexOf("<opt") &&
1564 [1, "<select>", "</select>"] ||
1566 !s.indexOf("<leg") &&
1567 [1, "<fieldset>", "</fieldset>"] ||
1569 s.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
1570 [1, "<table>", "</table>"] ||
1572 !s.indexOf("<tr") &&
1573 [2, "<table><tbody>", "</tbody></table>"] ||
1575 // <thead> matched above
1576 (!s.indexOf("<td") || !s.indexOf("<th")) &&
1577 [3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
1579 !s.indexOf("<col") &&
1580 [2, "<table><colgroup>", "</colgroup></table>"] ||
1584 // Go to html and back, then peel off extra wrappers
1585 div.innerHTML = wrap[1] + arg + wrap[2];
1587 // Move to the right depth
1589 div = div.firstChild;
1591 // Remove IE's autoinserted <tbody> from table fragments
1592 if ( jQuery.browser.msie ) {
1594 // String was a <table>, *may* have spurious <tbody>
1595 if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 )
1596 tb = div.firstChild && div.firstChild.childNodes;
1598 // String was a bare <thead> or <tfoot>
1599 else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
1600 tb = div.childNodes;
1602 for ( var n = tb.length-1; n >= 0 ; --n )
1603 if ( jQuery.nodeName(tb[n], "tbody") && !tb[n].childNodes.length )
1604 tb[n].parentNode.removeChild(tb[n]);
1606 // IE completely kills leading whitespace when innerHTML is used
1607 if ( /^\s/.test(arg) )
1608 div.insertBefore( doc.createTextNode( arg.match(/^\s*/)[0] ), div.firstChild );
1612 arg = jQuery.makeArray( div.childNodes );
1615 if ( 0 === arg.length && (!jQuery.nodeName(arg, "form") && !jQuery.nodeName(arg, "select")) )
1618 if ( arg[0] == undefined || jQuery.nodeName(arg, "form") || arg.options )
1621 r = jQuery.merge( r, arg );
1628 attr: function(elem, name, value){
1629 var fix = jQuery.isXMLDoc(elem) ? {} : jQuery.props;
1631 // Safari mis-reports the default selected property of a hidden option
1632 // Accessing the parent's selectedIndex property fixes it
1633 if ( name == "selected" && jQuery.browser.safari )
1634 elem.parentNode.selectedIndex;
1636 // Certain attributes only work when accessed via the old DOM 0 way
1638 if ( value != undefined ) elem[fix[name]] = value;
1639 return elem[fix[name]];
1640 } else if ( jQuery.browser.msie && name == "style" )
1641 return jQuery.attr( elem.style, "cssText", value );
1643 else if ( value == undefined && jQuery.browser.msie && jQuery.nodeName(elem, "form") && (name == "action" || name == "method") )
1644 return elem.getAttributeNode(name).nodeValue;
1646 // IE elem.getAttribute passes even for style
1647 else if ( elem.tagName ) {
1649 if ( value != undefined ) elem.setAttribute( name, value );
1650 if ( jQuery.browser.msie && /href|src/.test(name) && !jQuery.isXMLDoc(elem) )
1651 return elem.getAttribute( name, 2 );
1652 return elem.getAttribute( name );
1654 // elem is actually elem.style ... set the style
1656 // IE actually uses filters for opacity
1657 if ( name == "opacity" && jQuery.browser.msie ) {
1658 if ( value != undefined ) {
1659 // IE has trouble with opacity if it does not have layout
1660 // Force it by setting the zoom level
1663 // Set the alpha filter to set the opacity
1664 elem.filter = (elem.filter || "").replace(/alpha\([^)]*\)/,"") +
1665 (parseFloat(value).toString() == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
1668 return elem.filter ?
1669 (parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100).toString() : "";
1671 name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
1672 if ( value != undefined ) elem[name] = value;
1678 * Remove the whitespace from the beginning and end of a string.
1680 * @example $.trim(" hello, how are you? ");
1681 * @result "hello, how are you?"
1685 * @param String str The string to trim.
1689 return (t||"").replace(/^\s+|\s+$/g, "");
1692 makeArray: function( a ) {
1695 // Need to use typeof to fight Safari childNodes crashes
1696 if ( typeof a != "array" )
1697 for ( var i = 0, al = a.length; i < al; i++ )
1705 inArray: function( b, a ) {
1706 for ( var i = 0, al = a.length; i < al; i++ )
1713 * Merge two arrays together by concatenating them.
1715 * @example $.merge( [0,1,2], [2,3,4] )
1716 * @result [0,1,2,2,3,4]
1717 * @desc Merges two arrays.
1721 * @param Array first The first array to merge, the elements of second are added.
1722 * @param Array second The second array to append to the first, unaltered.
1725 merge: function(first, second) {
1726 // We have to loop this way because IE & Opera overwrite the length
1727 // expando of getElementsByTagName
1728 for ( var i = 0; second[i]; i++ )
1729 first.push(second[i]);
1734 * Reduce an array (of jQuery objects only) to its unique elements.
1736 * @example $.unique( [x1, x2, x3, x2, x3] )
1737 * @result [x1, x2, x3]
1738 * @desc Reduces the arrays of jQuery objects to unique elements by removing the duplicates of x2 and x3
1742 * @param Array array The array to reduce to its unique jQuery objects.
1745 unique: function(first) {
1746 var r = [], num = jQuery.mergeNum++;
1749 for ( var i = 0, fl = first.length; i < fl; i++ )
1750 if ( num != first[i].mergeNum ) {
1751 first[i].mergeNum = num;
1764 * Filter items out of an array, by using a filter function.
1766 * The specified function will be passed two arguments: The
1767 * current array item and the index of the item in the array. The
1768 * function must return 'true' to keep the item in the array,
1769 * false to remove it.
1771 * @example $.grep( [0,1,2], function(i){
1778 * @param Array array The Array to find items in.
1779 * @param Function fn The function to process each item against.
1780 * @param Boolean inv Invert the selection - select the opposite of the function.
1783 grep: function(elems, fn, inv) {
1784 // If a string is passed in for the function, make a function
1785 // for it (a handy shortcut)
1786 if ( typeof fn == "string" )
1787 fn = new Function("a","i","return " + fn);
1791 // Go through the array, only saving the items
1792 // that pass the validator function
1793 for ( var i = 0, el = elems.length; i < el; i++ )
1794 if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
1795 result.push( elems[i] );
1801 * Translate all items in an array to another array of items.
1803 * The translation function that is provided to this method is
1804 * called for each item in the array and is passed one argument:
1805 * The item to be translated.
1807 * The function can then return the translated value, 'null'
1808 * (to remove the item), or an array of values - which will
1809 * be flattened into the full array.
1811 * @example $.map( [0,1,2], function(i){
1815 * @desc Maps the original array to a new one and adds 4 to each value.
1817 * @example $.map( [0,1,2], function(i){
1818 * return i > 0 ? i + 1 : null;
1821 * @desc Maps the original array to a new one and adds 1 to each
1822 * value if it is bigger then zero, otherwise it's removed-
1824 * @example $.map( [0,1,2], function(i){
1825 * return [ i, i + 1 ];
1827 * @result [0, 1, 1, 2, 2, 3]
1828 * @desc Maps the original array to a new one, each element is added
1829 * with it's original value and the value plus one.
1833 * @param Array array The Array to translate.
1834 * @param Function fn The function to process each item against.
1837 map: function(elems, fn) {
1838 // If a string is passed in for the function, make a function
1839 // for it (a handy shortcut)
1840 if ( typeof fn == "string" )
1841 fn = new Function("a","return " + fn);
1845 // Go through the array, translating each of the items to their
1846 // new value (or values).
1847 for ( var i = 0, el = elems.length; i < el; i++ ) {
1848 var val = fn(elems[i],i);
1850 if ( val !== null && val != undefined ) {
1851 if ( val.constructor != Array ) val = [val];
1852 result = result.concat( val );
1861 * Contains flags for the useragent, read from navigator.userAgent.
1862 * Available flags are: safari, opera, msie, mozilla
1864 * This property is available before the DOM is ready, therefore you can
1865 * use it to add ready events only for certain browsers.
1867 * There are situations where object detections is not reliable enough, in that
1868 * cases it makes sense to use browser detection. Simply try to avoid both!
1870 * A combination of browser and object detection yields quite reliable results.
1872 * @example $.browser.msie
1873 * @desc Returns true if the current useragent is some version of microsoft's internet explorer
1875 * @example if($.browser.safari) { $( function() { alert("this is safari!"); } ); }
1876 * @desc Alerts "this is safari!" only for safari browsers
1885 * Whether the W3C compliant box model is being used.
1893 var b = navigator.userAgent.toLowerCase();
1895 // Figure out what browser is being used
1897 version: (b.match(/.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/) || [])[1],
1898 safari: /webkit/.test(b),
1899 opera: /opera/.test(b),
1900 msie: /msie/.test(b) && !/opera/.test(b),
1901 mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
1904 // Check to see if the W3C box model is being used
1905 jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
1907 jQuery.styleFloat = jQuery.browser.msie ? "styleFloat" : "cssFloat";
1911 "class": "className",
1912 "float": jQuery.styleFloat,
1913 cssFloat: jQuery.styleFloat,
1914 styleFloat: jQuery.styleFloat,
1915 innerHTML: "innerHTML",
1916 className: "className",
1918 disabled: "disabled",
1920 readonly: "readOnly",
1921 selected: "selected",
1922 maxlength: "maxLength"
1928 * Get a set of elements containing the unique parents of the matched
1931 * You may use an optional expression to filter the set of parent elements that will match.
1933 * @example $("p").parent()
1934 * @before <div><p>Hello</p><p>Hello</p></div>
1935 * @result [ <div><p>Hello</p><p>Hello</p></div> ]
1936 * @desc Find the parent element of each paragraph.
1938 * @example $("p").parent(".selected")
1939 * @before <div><p>Hello</p></div><div class="selected"><p>Hello Again</p></div>
1940 * @result [ <div class="selected"><p>Hello Again</p></div> ]
1941 * @desc Find the parent element of each paragraph with a class "selected".
1945 * @param String expr (optional) An expression to filter the parents with
1946 * @cat DOM/Traversing
1950 * Get a set of elements containing the unique ancestors of the matched
1951 * set of elements (except for the root element).
1953 * The matched elements can be filtered with an optional expression.
1955 * @example $("span").parents()
1956 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
1957 * @result [ <body>...</body>, <div>...</div>, <p><span>Hello</span></p> ]
1958 * @desc Find all parent elements of each span.
1960 * @example $("span").parents("p")
1961 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
1962 * @result [ <p><span>Hello</span></p> ]
1963 * @desc Find all parent elements of each span that is a paragraph.
1967 * @param String expr (optional) An expression to filter the ancestors with
1968 * @cat DOM/Traversing
1972 * Get a set of elements containing the unique next siblings of each of the
1973 * matched set of elements.
1975 * It only returns the very next sibling for each element, not all
1978 * You may provide an optional expression to filter the match.
1980 * @example $("p").next()
1981 * @before <p>Hello</p><p>Hello Again</p><div><span>And Again</span></div>
1982 * @result [ <p>Hello Again</p>, <div><span>And Again</span></div> ]
1983 * @desc Find the very next sibling of each paragraph.
1985 * @example $("p").next(".selected")
1986 * @before <p>Hello</p><p class="selected">Hello Again</p><div><span>And Again</span></div>
1987 * @result [ <p class="selected">Hello Again</p> ]
1988 * @desc Find the very next sibling of each paragraph that has a class "selected".
1992 * @param String expr (optional) An expression to filter the next Elements with
1993 * @cat DOM/Traversing
1997 * Get a set of elements containing the unique previous siblings of each of the
1998 * matched set of elements.
2000 * Use an optional expression to filter the matched set.
2002 * Only the immediately previous sibling is returned, not all previous siblings.
2004 * @example $("p").prev()
2005 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
2006 * @result [ <div><span>Hello Again</span></div> ]
2007 * @desc Find the very previous sibling of each paragraph.
2009 * @example $("p").prev(".selected")
2010 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
2011 * @result [ <div><span>Hello</span></div> ]
2012 * @desc Find the very previous sibling of each paragraph that has a class "selected".
2016 * @param String expr (optional) An expression to filter the previous Elements with
2017 * @cat DOM/Traversing
2021 * Get a set of elements containing all of the unique siblings of each of the
2022 * matched set of elements.
2024 * Can be filtered with an optional expressions.
2026 * @example $("div").siblings()
2027 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
2028 * @result [ <p>Hello</p>, <p>And Again</p> ]
2029 * @desc Find all siblings of each div.
2031 * @example $("div").siblings(".selected")
2032 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
2033 * @result [ <p class="selected">Hello Again</p> ]
2034 * @desc Find all siblings with a class "selected" of each div.
2038 * @param String expr (optional) An expression to filter the sibling Elements with
2039 * @cat DOM/Traversing
2043 * Get a set of elements containing all of the unique children of each of the
2044 * matched set of elements.
2046 * This set can be filtered with an optional expression that will cause
2047 * only elements matching the selector to be collected.
2049 * @example $("div").children()
2050 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
2051 * @result [ <span>Hello Again</span> ]
2052 * @desc Find all children of each div.
2054 * @example $("div").children(".selected")
2055 * @before <div><span>Hello</span><p class="selected">Hello Again</p><p>And Again</p></div>
2056 * @result [ <p class="selected">Hello Again</p> ]
2057 * @desc Find all children with a class "selected" of each div.
2061 * @param String expr (optional) An expression to filter the child Elements with
2062 * @cat DOM/Traversing
2065 parent: "a.parentNode",
2066 parents: "jQuery.parents(a)",
2067 next: "jQuery.nth(a,2,'nextSibling')",
2068 prev: "jQuery.nth(a,2,'previousSibling')",
2069 siblings: "jQuery.sibling(a.parentNode.firstChild,a)",
2070 children: "jQuery.sibling(a.firstChild)"
2072 jQuery.fn[ i ] = function(a) {
2073 var ret = jQuery.map(this,n);
2074 if ( a && typeof a == "string" )
2075 ret = jQuery.multiFilter(a,ret);
2076 return this.pushStack( ret );
2081 * Append all of the matched elements to another, specified, set of elements.
2082 * This operation is, essentially, the reverse of doing a regular
2083 * $(A).append(B), in that instead of appending B to A, you're appending
2086 * @example $("p").appendTo("#foo");
2087 * @before <p>I would like to say: </p><div id="foo"></div>
2088 * @result <div id="foo"><p>I would like to say: </p></div>
2089 * @desc Appends all paragraphs to the element with the ID "foo"
2093 * @param <Content> content Content to append to the selected element to.
2094 * @cat DOM/Manipulation
2095 * @see append(<Content>)
2099 * Prepend all of the matched elements to another, specified, set of elements.
2100 * This operation is, essentially, the reverse of doing a regular
2101 * $(A).prepend(B), in that instead of prepending B to A, you're prepending
2104 * @example $("p").prependTo("#foo");
2105 * @before <p>I would like to say: </p><div id="foo"><b>Hello</b></div>
2106 * @result <div id="foo"><p>I would like to say: </p><b>Hello</b></div>
2107 * @desc Prepends all paragraphs to the element with the ID "foo"
2111 * @param <Content> content Content to prepend to the selected element to.
2112 * @cat DOM/Manipulation
2113 * @see prepend(<Content>)
2117 * Insert all of the matched elements before another, specified, set of elements.
2118 * This operation is, essentially, the reverse of doing a regular
2119 * $(A).before(B), in that instead of inserting B before A, you're inserting
2122 * @example $("p").insertBefore("#foo");
2123 * @before <div id="foo">Hello</div><p>I would like to say: </p>
2124 * @result <p>I would like to say: </p><div id="foo">Hello</div>
2125 * @desc Same as $("#foo").before("p")
2127 * @name insertBefore
2129 * @param <Content> content Content to insert the selected element before.
2130 * @cat DOM/Manipulation
2131 * @see before(<Content>)
2135 * Insert all of the matched elements after another, specified, set of elements.
2136 * This operation is, essentially, the reverse of doing a regular
2137 * $(A).after(B), in that instead of inserting B after A, you're inserting
2140 * @example $("p").insertAfter("#foo");
2141 * @before <p>I would like to say: </p><div id="foo">Hello</div>
2142 * @result <div id="foo">Hello</div><p>I would like to say: </p>
2143 * @desc Same as $("#foo").after("p")
2147 * @param <Content> content Content to insert the selected element after.
2148 * @cat DOM/Manipulation
2149 * @see after(<Content>)
2154 prependTo: "prepend",
2155 insertBefore: "before",
2156 insertAfter: "after"
2158 jQuery.fn[ i ] = function(){
2160 return this.each(function(){
2161 for ( var j = 0, al = a.length; j < al; j++ )
2162 jQuery(a[j])[n]( this );
2168 * Remove an attribute from each of the matched elements.
2170 * @example $("input").removeAttr("disabled")
2171 * @before <input disabled="disabled"/>
2176 * @param String name The name of the attribute to remove.
2177 * @cat DOM/Attributes
2181 * Adds the specified class(es) to each of the set of matched elements.
2183 * @example $("p").addClass("selected")
2184 * @before <p>Hello</p>
2185 * @result [ <p class="selected">Hello</p> ]
2187 * @example $("p").addClass("selected highlight")
2188 * @before <p>Hello</p>
2189 * @result [ <p class="selected highlight">Hello</p> ]
2193 * @param String class One or more CSS classes to add to the elements
2194 * @cat DOM/Attributes
2195 * @see removeClass(String)
2199 * Removes all or the specified class(es) from the set of matched elements.
2201 * @example $("p").removeClass()
2202 * @before <p class="selected">Hello</p>
2203 * @result [ <p>Hello</p> ]
2205 * @example $("p").removeClass("selected")
2206 * @before <p class="selected first">Hello</p>
2207 * @result [ <p class="first">Hello</p> ]
2209 * @example $("p").removeClass("selected highlight")
2210 * @before <p class="highlight selected first">Hello</p>
2211 * @result [ <p class="first">Hello</p> ]
2215 * @param String class (optional) One or more CSS classes to remove from the elements
2216 * @cat DOM/Attributes
2217 * @see addClass(String)
2221 * Adds the specified class if it is not present, removes it if it is
2224 * @example $("p").toggleClass("selected")
2225 * @before <p>Hello</p><p class="selected">Hello Again</p>
2226 * @result [ <p class="selected">Hello</p>, <p>Hello Again</p> ]
2230 * @param String class A CSS class with which to toggle the elements
2231 * @cat DOM/Attributes
2235 * Removes all matched elements from the DOM. This does NOT remove them from the
2236 * jQuery object, allowing you to use the matched elements further.
2238 * Can be filtered with an optional expressions.
2240 * @example $("p").remove();
2241 * @before <p>Hello</p> how are <p>you?</p>
2244 * @example $("p").remove(".hello");
2245 * @before <p class="hello">Hello</p> how are <p>you?</p>
2246 * @result how are <p>you?</p>
2250 * @param String expr (optional) A jQuery expression to filter elements by.
2251 * @cat DOM/Manipulation
2255 * Removes all child nodes from the set of matched elements.
2257 * @example $("p").empty()
2258 * @before <p>Hello, <span>Person</span> <a href="#">and person</a></p>
2259 * @result [ <p></p> ]
2263 * @cat DOM/Manipulation
2267 removeAttr: function( key ) {
2268 jQuery.attr( this, key, "" );
2269 this.removeAttribute( key );
2271 addClass: function(c){
2272 jQuery.className.add(this,c);
2274 removeClass: function(c){
2275 jQuery.className.remove(this,c);
2277 toggleClass: function( c ){
2278 jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
2280 remove: function(a){
2281 if ( !a || jQuery.filter( a, [this] ).r.length )
2282 this.parentNode.removeChild( this );
2285 while ( this.firstChild )
2286 this.removeChild( this.firstChild );
2289 jQuery.fn[ i ] = function() {
2290 return this.each( n, arguments );
2295 * Reduce the set of matched elements to a single element.
2296 * The position of the element in the set of matched elements
2297 * starts at 0 and goes to length - 1.
2299 * @example $("p").eq(1)
2300 * @before <p>This is just a test.</p><p>So is this</p>
2301 * @result [ <p>So is this</p> ]
2305 * @param Number pos The index of the element that you wish to limit to.
2310 * Reduce the set of matched elements to all elements before a given position.
2311 * The position of the element in the set of matched elements
2312 * starts at 0 and goes to length - 1.
2314 * @example $("p").lt(1)
2315 * @before <p>This is just a test.</p><p>So is this</p>
2316 * @result [ <p>This is just a test.</p> ]
2320 * @param Number pos Reduce the set to all elements below this position.
2325 * Reduce the set of matched elements to all elements after a given position.
2326 * The position of the element in the set of matched elements
2327 * starts at 0 and goes to length - 1.
2329 * @example $("p").gt(0)
2330 * @before <p>This is just a test.</p><p>So is this</p>
2331 * @result [ <p>So is this</p> ]
2335 * @param Number pos Reduce the set to all elements after this position.
2340 * Filter the set of elements to those that contain the specified text.
2342 * @example $("p").contains("test")
2343 * @before <p>This is just a test.</p><p>So is this</p>
2344 * @result [ <p>This is just a test.</p> ]
2348 * @param String str The string that will be contained within the text of an element.
2349 * @cat DOM/Traversing
2351 jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
2352 jQuery.fn[ n ] = function(num,fn) {
2353 return this.filter( ":" + n + "(" + num + ")", fn );
2358 * Get the current computed, pixel, width of the first matched element.
2360 * @example $("p").width();
2361 * @before <p>This is just a test.</p>
2370 * Set the CSS width of every matched element. If no explicit unit
2371 * was specified (like 'em' or '%') then "px" is added to the width.
2373 * @example $("p").width(20);
2374 * @before <p>This is just a test.</p>
2375 * @result <p style="width:20px;">This is just a test.</p>
2377 * @example $("p").width("20em");
2378 * @before <p>This is just a test.</p>
2379 * @result <p style="width:20em;">This is just a test.</p>
2383 * @param String|Number val Set the CSS property to the specified value.
2388 * Get the current computed, pixel, height of the first matched element.
2390 * @example $("p").height();
2391 * @before <p>This is just a test.</p>
2400 * Set the CSS height of every matched element. If no explicit unit
2401 * was specified (like 'em' or '%') then "px" is added to the width.
2403 * @example $("p").height(20);
2404 * @before <p>This is just a test.</p>
2405 * @result <p style="height:20px;">This is just a test.</p>
2407 * @example $("p").height("20em");
2408 * @before <p>This is just a test.</p>
2409 * @result <p style="height:20em;">This is just a test.</p>
2413 * @param String|Number val Set the CSS property to the specified value.
2417 jQuery.each( [ "height", "width" ], function(i,n){
2418 jQuery.fn[ n ] = function(h) {
2419 return h == undefined ?
2420 ( this.length ? jQuery.css( this[0], n ) : null ) :
2421 this.css( n, h.constructor == String ? h : h + "px" );