2 * jQuery @VERSION - New Wave Javascript
4 * Copyright (c) 2006 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
28 return new jQuery(a,c);
30 // Make sure that a selection was provided
33 // HANDLE: $(function)
34 // Shortcut for document ready
35 // Safari reports typeof on DOM NodeLists as a function
36 if ( typeof a == "function" && !a.nodeType && a[0] == undefined )
37 return new jQuery(document)[ jQuery.fn.ready ? "ready" : "load" ]( a );
39 // Handle HTML strings
40 if ( typeof a == "string" ) {
41 // HANDLE: $(html) -> $(array)
42 var m = /^[^<]*(<.+>)[^>]*$/.exec(a);
44 a = jQuery.clean( [ m[1] ] );
48 return new jQuery( c ).find( a );
53 a.constructor == Array && a ||
55 // HANDLE: $(arraylike)
56 // Watch for when an array-like object is passed as the selector
57 (a.jquery || a.length && a != window && !a.nodeType && a[0] != undefined && a[0].nodeType) && jQuery.makeArray( a ) ||
63 // Map over the $ in case of overwrite
64 if ( typeof $ != "undefined" )
67 // Map the jQuery namespace to the '$' one
71 * This function accepts a string containing a CSS or
72 * basic XPath selector which is then used to match a set of elements.
74 * The core functionality of jQuery centers around this function.
75 * Everything in jQuery is based upon this, or uses this in some way.
76 * The most basic use of this function is to pass in an expression
77 * (usually consisting of CSS or XPath), which then finds all matching
80 * By default, $() looks for DOM elements within the context of the
81 * current HTML document.
83 * @example $("div > p")
84 * @desc Finds all p elements that are children of a div element.
85 * @before <p>one</p> <div><p>two</p></div> <p>three</p>
86 * @result [ <p>two</p> ]
88 * @example $("input:radio", document.forms[0])
89 * @desc Searches for all inputs of type radio within the first form in the document
91 * @example $("div", xml.responseXML)
92 * @desc This finds all div elements within the specified XML document.
95 * @param String expr An expression to search with
96 * @param Element|jQuery context (optional) A DOM Element, Document or jQuery to use as context
100 * @see $(Element<Array>)
104 * Create DOM elements on-the-fly from the provided String of raw HTML.
106 * @example $("<div><p>Hello</p></div>").appendTo("#body")
107 * @desc Creates a div element (and all of its contents) dynamically,
108 * and appends it to the element with the ID of body. Internally, an
109 * element is created and it's innerHTML property set to the given markup.
110 * It is therefore both quite flexible and limited.
113 * @param String html A string of HTML to create on the fly.
116 * @see appendTo(String)
120 * Wrap jQuery functionality around a single or multiple DOM Element(s).
122 * This function also accepts XML Documents and Window objects
123 * as valid arguments (even though they are not DOM Elements).
125 * @example $(document).find("div > p")
126 * @before <p>one</p> <div><p>two</p></div> <p>three</p>
127 * @result [ <p>two</p> ]
128 * @desc Same as $("div > p") because the document
130 * @example $(document.body).background( "black" );
131 * @desc Sets the background color of the page to black.
133 * @example $( myForm.elements ).hide()
134 * @desc Hides all the input elements within a form
137 * @param Element|Array<Element> elems DOM element(s) to be encapsulated by a jQuery object.
143 * A shorthand for $(document).ready(), allowing you to bind a function
144 * to be executed when the DOM document has finished loading. This function
145 * behaves just like $(document).ready(), in that it should be used to wrap
146 * all of the other $() operations on your page. While this function is,
147 * technically, chainable - there really isn't much use for chaining against it.
148 * You can have as many $(document).ready events on your page as you like.
150 * See ready(Function) for details about the ready event.
152 * @example $(function(){
153 * // Document is ready
155 * @desc Executes the function when the DOM is ready to be used.
158 * @param Function fn The function to execute when the DOM is ready.
163 jQuery.fn = jQuery.prototype = {
165 * The current version of jQuery.
176 * The number of elements currently matched.
178 * @example $("img").length;
179 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
189 * The number of elements currently matched.
191 * @example $("img").size();
192 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
206 * Access all matched elements. This serves as a backwards-compatible
207 * way of accessing all matched elements (other than the jQuery object
208 * itself, which is, in fact, an array of elements).
210 * @example $("img").get();
211 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
212 * @result [ <img src="test1.jpg"/> <img src="test2.jpg"/> ]
213 * @desc Selects all images in the document and returns the DOM Elements as an Array
216 * @type Array<Element>
221 * Access a single matched element. num is used to access the
222 * Nth element matched.
224 * @example $("img").get(0);
225 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
226 * @result [ <img src="test1.jpg"/> ]
227 * @desc Selects all images in the document and returns the first one
231 * @param Number num Access the element in the Nth position.
234 get: function( num ) {
235 return num == undefined ?
237 // Return a 'clean' array
238 jQuery.makeArray( this ) :
240 // Return just the object
245 * Set the jQuery object to an array of elements, while maintaining
248 * @example $("img").pushStack([ document.body ]);
249 * @result $("img").pushStack() == [ document.body ]
254 * @param Elements elems An array of elements
257 pushStack: function( a ) {
258 var ret = jQuery(this);
259 ret.prevObject = this;
260 return ret.setArray( a );
264 * Set the jQuery object to an array of elements. This operation is
265 * completely destructive - be sure to use .pushStack() if you wish to maintain
268 * @example $("img").setArray([ document.body ]);
269 * @result $("img").setArray() == [ document.body ]
274 * @param Elements elems An array of elements
277 setArray: function( a ) {
279 [].push.apply( this, a );
284 * Execute a function within the context of every matched element.
285 * This means that every time the passed-in function is executed
286 * (which is once for every element matched) the 'this' keyword
287 * points to the specific element.
289 * Additionally, the function, when executed, is passed a single
290 * argument representing the position of the element in the matched
293 * @example $("img").each(function(i){
294 * this.src = "test" + i + ".jpg";
296 * @before <img/><img/>
297 * @result <img src="test0.jpg"/><img src="test1.jpg"/>
298 * @desc Iterates over two images and sets their src property
302 * @param Function fn A function to execute
305 each: function( fn, args ) {
306 return jQuery.each( this, fn, args );
310 * Searches every matched element for the object and returns
311 * the index of the element, if found, starting with zero.
312 * Returns -1 if the object wasn't found.
314 * @example $("*").index( $('#foobar')[0] )
315 * @before <div id="foobar"></div><b></b><span id="foo"></span>
317 * @desc Returns the index for the element with ID foobar
319 * @example $("*").index( $('#foo'))
320 * @before <div id="foobar"></div><b></b><span id="foo"></span>
322 * @desc Returns the index for the element with ID foo
324 * @example $("*").index( $('#bar'))
325 * @before <div id="foobar"></div><b></b><span id="foo"></span>
327 * @desc Returns -1, as there is no element with ID bar
331 * @param Element subject Object to search for
334 index: function( obj ) {
336 this.each(function(i){
337 if ( this == obj ) pos = i;
343 * Access a property on the first matched element.
344 * This method makes it easy to retrieve a property value
345 * from the first matched element.
347 * @example $("img").attr("src");
348 * @before <img src="test.jpg"/>
350 * @desc Returns the src attribute from the first image in the document.
354 * @param String name The name of the property to access.
355 * @cat DOM/Attributes
359 * Set a key/value object as properties to all matched elements.
361 * This serves as the best way to set a large number of properties
362 * on all matched elements.
364 * @example $("img").attr({ src: "test.jpg", alt: "Test Image" });
366 * @result <img src="test.jpg" alt="Test Image"/>
367 * @desc Sets src and alt attributes to all images.
371 * @param Map properties Key/value pairs to set as object properties.
372 * @cat DOM/Attributes
376 * Set a single property to a value, on all matched elements.
378 * Can compute values provided as ${formula}, see second example.
380 * Note that you can't set the name property of input elements in IE.
381 * Use $(html) or .append(html) or .html(html) to create elements
382 * on the fly including the name property.
384 * @example $("img").attr("src","test.jpg");
386 * @result <img src="test.jpg"/>
387 * @desc Sets src attribute to all images.
389 * @example $("img").attr("title", "${this.src}");
390 * @before <img src="test.jpg" />
391 * @result <img src="test.jpg" title="test.jpg" />
392 * @desc Sets title attribute from src attribute, a shortcut for attr(String,Function)
396 * @param String key The name of the property to set.
397 * @param Object value The value to set the property to.
398 * @cat DOM/Attributes
402 * Set a single property to a computed value, on all matched elements.
404 * Instead of a value, a function is provided, that computes the value.
406 * @example $("img").attr("title", function() { return this.src });
407 * @before <img src="test.jpg" />
408 * @result <img src="test.jpg" title="test.jpg" />
409 * @desc Sets title attribute from src attribute.
413 * @param String key The name of the property to set.
414 * @param Function value A function returning the value to set.
415 * @cat DOM/Attributes
417 attr: function( key, value, type ) {
420 // Look for the case where we're accessing a style value
421 if ( key.constructor == String )
422 if ( value == undefined )
423 return jQuery[ type || "attr" ]( this[0], key );
429 // Check to see if we're setting style values
430 return this.each(function(){
431 // Set all the styles
432 for ( var prop in obj )
434 type ? this.style : this,
435 prop, jQuery.prop(this, obj[prop], type)
441 * Access a style property on the first matched element.
442 * This method makes it easy to retrieve a style property value
443 * from the first matched element.
445 * @example $("p").css("color");
446 * @before <p style="color:red;">Test Paragraph.</p>
448 * @desc Retrieves the color style of the first paragraph
450 * @example $("p").css("font-weight");
451 * @before <p style="font-weight: bold;">Test Paragraph.</p>
453 * @desc Retrieves the font-weight style of the first paragraph.
457 * @param String name The name of the property to access.
462 * Set a key/value object as style properties to all matched elements.
464 * This serves as the best way to set a large number of style properties
465 * on all matched elements.
467 * @example $("p").css({ color: "red", background: "blue" });
468 * @before <p>Test Paragraph.</p>
469 * @result <p style="color:red; background:blue;">Test Paragraph.</p>
470 * @desc Sets color and background styles to all p elements.
474 * @param Map properties Key/value pairs to set as style properties.
479 * Set a single style property to a value, on all matched elements.
480 * If a number is provided, it is automatically converted into a pixel value.
482 * @example $("p").css("color","red");
483 * @before <p>Test Paragraph.</p>
484 * @result <p style="color:red;">Test Paragraph.</p>
485 * @desc Changes the color of all paragraphs to red
487 * @example $("p").css("left",30);
488 * @before <p>Test Paragraph.</p>
489 * @result <p style="left:30px;">Test Paragraph.</p>
490 * @desc Changes the left of all paragraphs to "30px"
494 * @param String key The name of the property to set.
495 * @param String|Number value The value to set the property to.
498 css: function( key, value ) {
499 return this.attr( key, value, "curCSS" );
503 * Get the text contents of all matched elements. The result is
504 * a string that contains the combined text contents of all matched
505 * elements. This method works on both HTML and XML documents.
507 * @example $("p").text();
508 * @before <p><b>Test</b> Paragraph.</p><p>Paraparagraph</p>
509 * @result Test Paragraph.Paraparagraph
510 * @desc Gets the concatenated text of all paragraphs
514 * @cat DOM/Attributes
518 * Set the text contents of all matched elements.
520 * Similar to html(), but escapes HTML (replace "<" and ">" with their
523 * @example $("p").text("<b>Some</b> new text.");
524 * @before <p>Test Paragraph.</p>
525 * @result <p><b>Some</b> new text.</p>
526 * @desc Sets the text of all paragraphs.
528 * @example $("p").text("<b>Some</b> new text.", true);
529 * @before <p>Test Paragraph.</p>
530 * @result <p>Some new text.</p>
531 * @desc Sets the text of all paragraphs.
535 * @param String val The text value to set the contents of the element to.
536 * @cat DOM/Attributes
539 var type = this.length && this[0].innerText == undefined ?
540 "textContent" : "innerText";
542 return e == undefined ?
543 this.length && this[0][ type ] :
544 this.each(function(){ this[ type ] = e; });
548 * Wrap all matched elements with a structure of other elements.
549 * This wrapping process is most useful for injecting additional
550 * stucture into a document, without ruining the original semantic
551 * qualities of a document.
553 * This works by going through the first element
554 * provided (which is generated, on the fly, from the provided HTML)
555 * and finds the deepest ancestor element within its
556 * structure - it is that element that will en-wrap everything else.
558 * This does not work with elements that contain text. Any necessary text
559 * must be added after the wrapping is done.
561 * @example $("p").wrap("<div class='wrap'></div>");
562 * @before <p>Test Paragraph.</p>
563 * @result <div class='wrap'><p>Test Paragraph.</p></div>
567 * @param String html A string of HTML, that will be created on the fly and wrapped around the target.
568 * @cat DOM/Manipulation
572 * Wrap all matched elements with a structure of other elements.
573 * This wrapping process is most useful for injecting additional
574 * stucture into a document, without ruining the original semantic
575 * qualities of a document.
577 * This works by going through the first element
578 * provided and finding the deepest ancestor element within its
579 * structure - it is that element that will en-wrap everything else.
581 * This does not work with elements that contain text. Any necessary text
582 * must be added after the wrapping is done.
584 * @example $("p").wrap( document.getElementById('content') );
585 * @before <p>Test Paragraph.</p><div id="content"></div>
586 * @result <div id="content"><p>Test Paragraph.</p></div>
590 * @param Element elem A DOM element that will be wrapped around the target.
591 * @cat DOM/Manipulation
594 // The elements to wrap the target around
595 var a = jQuery.clean(arguments);
597 // Wrap each of the matched elements individually
598 return this.each(function(){
599 // Clone the structure that we're using to wrap
600 var b = a[0].cloneNode(true);
602 // Insert it before the element to be wrapped
603 this.parentNode.insertBefore( b, this );
605 // Find the deepest point in the wrap structure
606 while ( b.firstChild )
609 // Move the matched element to within the wrap structure
610 b.appendChild( this );
615 * Append content to the inside of every matched element.
617 * This operation is similar to doing an appendChild to all the
618 * specified elements, adding them into the document.
620 * @example $("p").append("<b>Hello</b>");
621 * @before <p>I would like to say: </p>
622 * @result <p>I would like to say: <b>Hello</b></p>
623 * @desc Appends some HTML to all paragraphs.
625 * @example $("p").append( $("#foo")[0] );
626 * @before <p>I would like to say: </p><b id="foo">Hello</b>
627 * @result <p>I would like to say: <b id="foo">Hello</b></p>
628 * @desc Appends an Element to all paragraphs.
630 * @example $("p").append( $("b") );
631 * @before <p>I would like to say: </p><b>Hello</b>
632 * @result <p>I would like to say: <b>Hello</b></p>
633 * @desc Appends a jQuery object (similar to an Array of DOM Elements) to all paragraphs.
637 * @param <Content> content Content to append to the target
638 * @cat DOM/Manipulation
639 * @see prepend(<Content>)
640 * @see before(<Content>)
641 * @see after(<Content>)
644 return this.domManip(arguments, true, 1, function(a){
645 this.appendChild( a );
650 * Prepend content to the inside of every matched element.
652 * This operation is the best way to insert elements
653 * inside, at the beginning, of all matched elements.
655 * @example $("p").prepend("<b>Hello</b>");
656 * @before <p>I would like to say: </p>
657 * @result <p><b>Hello</b>I would like to say: </p>
658 * @desc Prepends some HTML to all paragraphs.
660 * @example $("p").prepend( $("#foo")[0] );
661 * @before <p>I would like to say: </p><b id="foo">Hello</b>
662 * @result <p><b id="foo">Hello</b>I would like to say: </p>
663 * @desc Prepends an Element to all paragraphs.
665 * @example $("p").prepend( $("b") );
666 * @before <p>I would like to say: </p><b>Hello</b>
667 * @result <p><b>Hello</b>I would like to say: </p>
668 * @desc Prepends a jQuery object (similar to an Array of DOM Elements) to all paragraphs.
672 * @param <Content> content Content to prepend to the target.
673 * @cat DOM/Manipulation
674 * @see append(<Content>)
675 * @see before(<Content>)
676 * @see after(<Content>)
678 prepend: function() {
679 return this.domManip(arguments, true, -1, function(a){
680 this.insertBefore( a, this.firstChild );
685 * Insert content before each of the matched elements.
687 * @example $("p").before("<b>Hello</b>");
688 * @before <p>I would like to say: </p>
689 * @result <b>Hello</b><p>I would like to say: </p>
690 * @desc Inserts some HTML before all paragraphs.
692 * @example $("p").before( $("#foo")[0] );
693 * @before <p>I would like to say: </p><b id="foo">Hello</b>
694 * @result <b id="foo">Hello</b><p>I would like to say: </p>
695 * @desc Inserts an Element before all paragraphs.
697 * @example $("p").before( $("b") );
698 * @before <p>I would like to say: </p><b>Hello</b>
699 * @result <b>Hello</b><p>I would like to say: </p>
700 * @desc Inserts a jQuery object (similar to an Array of DOM Elements) before all paragraphs.
704 * @param <Content> content Content to insert before each target.
705 * @cat DOM/Manipulation
706 * @see append(<Content>)
707 * @see prepend(<Content>)
708 * @see after(<Content>)
711 return this.domManip(arguments, false, 1, function(a){
712 this.parentNode.insertBefore( a, this );
717 * Insert content after each of the matched elements.
719 * @example $("p").after("<b>Hello</b>");
720 * @before <p>I would like to say: </p>
721 * @result <p>I would like to say: </p><b>Hello</b>
722 * @desc Inserts some HTML after all paragraphs.
724 * @example $("p").after( $("#foo")[0] );
725 * @before <b id="foo">Hello</b><p>I would like to say: </p>
726 * @result <p>I would like to say: </p><b id="foo">Hello</b>
727 * @desc Inserts an Element after all paragraphs.
729 * @example $("p").after( $("b") );
730 * @before <b>Hello</b><p>I would like to say: </p>
731 * @result <p>I would like to say: </p><b>Hello</b>
732 * @desc Inserts a jQuery object (similar to an Array of DOM Elements) after all paragraphs.
736 * @param <Content> content Content to insert after each target.
737 * @cat DOM/Manipulation
738 * @see append(<Content>)
739 * @see prepend(<Content>)
740 * @see before(<Content>)
743 return this.domManip(arguments, false, -1, function(a){
744 this.parentNode.insertBefore( a, this.nextSibling );
749 * End the most recent 'destructive' operation, reverting the list of matched elements
750 * back to its previous state. After an end operation, the list of matched elements will
751 * revert to the last state of matched elements.
753 * If there was no destructive operation before, an empty set is returned.
755 * @example $("p").find("span").end();
756 * @before <p><span>Hello</span>, how are you?</p>
757 * @result [ <p>...</p> ]
758 * @desc Selects all paragraphs, finds span elements inside these, and reverts the
759 * selection back to the paragraphs.
763 * @cat DOM/Traversing
766 return this.prevObject || jQuery([]);
770 * Searches for all elements that match the specified expression.
772 * This method is a good way to find additional descendant
773 * elements with which to process.
775 * All searching is done using a jQuery expression. The expression can be
776 * written using CSS 1-3 Selector syntax, or basic XPath.
778 * @example $("p").find("span");
779 * @before <p><span>Hello</span>, how are you?</p>
780 * @result [ <span>Hello</span> ]
781 * @desc Starts with all paragraphs and searches for descendant span
782 * elements, same as $("p span")
786 * @param String expr An expression to search with.
787 * @cat DOM/Traversing
790 return this.pushStack( jQuery.map( this, function(a){
791 return jQuery.find(t,a);
796 * Clone matched DOM Elements and select the clones.
798 * This is useful for moving copies of the elements to another
799 * location in the DOM.
801 * @example $("b").clone().prependTo("p");
802 * @before <b>Hello</b><p>, how are you?</p>
803 * @result <b>Hello</b><p><b>Hello</b>, how are you?</p>
804 * @desc Clones all b elements (and selects the clones) and prepends them to all paragraphs.
808 * @cat DOM/Manipulation
810 clone: function(deep) {
811 return this.pushStack( jQuery.map( this, function(a){
812 return a.cloneNode( deep != undefined ? deep : true );
817 * Removes all elements from the set of matched elements that do not
818 * match the specified expression(s). This method is used to narrow down
819 * the results of a search.
821 * Provide a comma-separated list of expressions to apply multiple filters at once.
823 * @example $("p").filter(".selected")
824 * @before <p class="selected">Hello</p><p>How are you?</p>
825 * @result [ <p class="selected">Hello</p> ]
826 * @desc Selects all paragraphs and removes those without a class "selected".
828 * @example $("p").filter(".selected, :first")
829 * @before <p>Hello</p><p>Hello Again</p><p class="selected">And Again</p>
830 * @result [ <p>Hello</p>, <p class="selected">And Again</p> ]
831 * @desc Selects all paragraphs and removes those without class "selected" and being the first one.
835 * @param String expression Expression(s) to search with.
836 * @cat DOM/Traversing
840 * Removes all elements from the set of matched elements that do not
841 * pass the specified filter. This method is used to narrow down
842 * the results of a search.
844 * @example $("p").filter(function(index) {
845 * return $("ol", this).length == 0;
847 * @before <p><ol><li>Hello</li></ol></p><p>How are you?</p>
848 * @result [ <p>How are you?</p> ]
849 * @desc Remove all elements that have a child ol element
853 * @param Function filter A function to use for filtering
854 * @cat DOM/Traversing
856 filter: function(t) {
857 return this.pushStack(
858 t.constructor == Function &&
859 jQuery.grep(this, function(el, index){
860 return t.apply(el, [index])
863 jQuery.multiFilter(t,this) );
867 * Removes the specified Element from the set of matched elements. This
868 * method is used to remove a single Element from a jQuery object.
870 * @example $("p").not( $("#selected")[0] )
871 * @before <p>Hello</p><p id="selected">Hello Again</p>
872 * @result [ <p>Hello</p> ]
873 * @desc Removes the element with the ID "selected" from the set of all paragraphs.
877 * @param Element el An element to remove from the set
878 * @cat DOM/Traversing
882 * Removes elements matching the specified expression from the set
883 * of matched elements. This method is used to remove one or more
884 * elements from a jQuery object.
886 * @example $("p").not("#selected")
887 * @before <p>Hello</p><p id="selected">Hello Again</p>
888 * @result [ <p>Hello</p> ]
889 * @desc Removes the element with the ID "selected" from the set of all paragraphs.
893 * @param String expr An expression with which to remove matching elements
894 * @cat DOM/Traversing
898 * Removes any elements inside the array of elements from the set
899 * of matched elements. This method is used to remove one or more
900 * elements from a jQuery object.
902 * @example $("p").not( $("div p.selected") )
903 * @before <div><p>Hello</p><p class="selected">Hello Again</p></div>
904 * @result [ <p>Hello</p> ]
905 * @desc Removes all elements that match "div p.selected" from the total set of all paragraphs.
909 * @param Array|jQuery elems A set of elements to remove from the jQuery set of matched elements.
910 * @cat DOM/Traversing
913 return this.pushStack(
914 t.constructor == String &&
915 jQuery.multiFilter(t,this,true) ||
917 jQuery.grep(this,function(a){
918 if ( t.constructor == Array || t.jquery )
919 return !jQuery.inArray( t, a );
926 * Adds the elements matched by the expression to the jQuery object. This
927 * can be used to concatenate the result sets of two expressions.
929 * @example $("p").add("span")
930 * @before <p>Hello</p><p><span>Hello Again</span></p>
931 * @result [ <p>Hello</p>, <span>Hello Again</span> ]
935 * @param String expr An expression whose matched elements are added
936 * @cat DOM/Traversing
940 * Adds the on the fly created elements to the jQuery object.
942 * @example $("p").add("<span>Again</span>")
943 * @before <p>Hello</p>
944 * @result [ <p>Hello</p>, <span>Again</span> ]
948 * @param String html A string of HTML to create on the fly.
949 * @cat DOM/Traversing
953 * Adds one or more Elements to the set of matched elements.
955 * This is used to add a set of Elements to a jQuery object.
957 * @example $("p").add( document.getElementById("a") )
958 * @before <p>Hello</p><p><span id="a">Hello Again</span></p>
959 * @result [ <p>Hello</p>, <span id="a">Hello Again</span> ]
961 * @example $("p").add([document.getElementById("a"), document.getElementById("b")])
962 * @before <p>Hello</p><p><span id="a">Hello Again</span><span id="b">And Again</span></p>
963 * @result [ <p>Hello</p>, <span id="a">Hello Again</span>, <span id="b">And Again</span> ]
967 * @param Element|Array<Element> elements One or more Elements to add
968 * @cat DOM/Traversing
971 return this.pushStack( jQuery.merge(
973 typeof t == "string" ? jQuery(t).get() : t )
978 * Checks the current selection against an expression and returns true,
979 * if at least one element of the selection fits the given expression.
981 * Does return false, if no element fits or the expression is not valid.
983 * filter(String) is used internally, therefore all rules that apply there
986 * @example $("input[@type='checkbox']").parent().is("form")
987 * @before <form><input type="checkbox" /></form>
989 * @desc Returns true, because the parent of the input is a form element
991 * @example $("input[@type='checkbox']").parent().is("form")
992 * @before <form><p><input type="checkbox" /></p></form>
994 * @desc Returns false, because the parent of the input is a p element
998 * @param String expr The expression with which to filter
999 * @cat DOM/Traversing
1001 is: function(expr) {
1002 return expr ? jQuery.filter(expr,this).r.length > 0 : false;
1006 * Get the current value of the first matched element.
1008 * @example $("input").val();
1009 * @before <input type="text" value="some text"/>
1010 * @result "some text"
1014 * @cat DOM/Attributes
1018 * Set the value of every matched element.
1020 * @example $("input").val("test");
1021 * @before <input type="text" value="some text"/>
1022 * @result <input type="text" value="test"/>
1026 * @param String val Set the property to the specified value.
1027 * @cat DOM/Attributes
1029 val: function( val ) {
1030 return val == undefined ?
1031 ( this.length ? this[0].value : null ) :
1032 this.attr( "value", val );
1036 * Get the html contents of the first matched element.
1037 * This property is not available on XML documents.
1039 * @example $("div").html();
1040 * @before <div><input/></div>
1045 * @cat DOM/Attributes
1049 * Set the html contents of every matched element.
1050 * This property is not available on XML documents.
1052 * @example $("div").html("<b>new stuff</b>");
1053 * @before <div><input/></div>
1054 * @result <div><b>new stuff</b></div>
1058 * @param String val Set the html contents to the specified value.
1059 * @cat DOM/Attributes
1061 html: function( val ) {
1062 return val == undefined ?
1063 ( this.length ? this[0].innerHTML : null ) :
1064 this.empty().append( val );
1071 * @param Boolean table Insert TBODY in TABLEs if one is not found.
1072 * @param Number dir If dir<0, process args in reverse order.
1073 * @param Function fn The function doing the DOM manipulation.
1077 domManip: function(args, table, dir, fn){
1078 var clone = this.length > 1;
1079 var a = jQuery.clean(args);
1083 return this.each(function(){
1086 if ( table && this.nodeName.toUpperCase() == "TABLE" && a[0].nodeName.toUpperCase() == "TR" )
1087 obj = this.getElementsByTagName("tbody")[0] || this.appendChild(document.createElement("tbody"));
1089 for ( var i = 0, al = a.length; i < al; i++ )
1090 fn.apply( obj, [ clone ? a[i].cloneNode(true) : a[i] ] );
1097 * Extends the jQuery object itself. Can be used to add functions into
1098 * the jQuery namespace and to add plugin methods (plugins).
1100 * @example jQuery.fn.extend({
1101 * check: function() {
1102 * return this.each(function() { this.checked = true; });
1104 * uncheck: function() {
1105 * return this.each(function() { this.checked = false; });
1108 * $("input[@type=checkbox]").check();
1109 * $("input[@type=radio]").uncheck();
1110 * @desc Adds two plugin methods.
1112 * @example jQuery.extend({
1113 * min: function(a, b) { return a < b ? a : b; },
1114 * max: function(a, b) { return a > b ? a : b; }
1116 * @desc Adds two functions into the jQuery namespace
1119 * @param Object prop The object that will be merged into the jQuery object
1125 * Extend one object with one or more others, returning the original,
1126 * modified, object. This is a great utility for simple inheritance.
1128 * @example var settings = { validate: false, limit: 5, name: "foo" };
1129 * var options = { validate: true, name: "bar" };
1130 * jQuery.extend(settings, options);
1131 * @result settings == { validate: true, limit: 5, name: "bar" }
1132 * @desc Merge settings and options, modifying settings
1134 * @example var defaults = { validate: false, limit: 5, name: "foo" };
1135 * var options = { validate: true, name: "bar" };
1136 * var settings = jQuery.extend({}, defaults, options);
1137 * @result settings == { validate: true, limit: 5, name: "bar" }
1138 * @desc Merge defaults and options, without modifying the defaults
1141 * @param Object target The object to extend
1142 * @param Object prop1 The object that will be merged into the first.
1143 * @param Object propN (optional) More objects to merge into the first
1147 jQuery.extend = jQuery.fn.extend = function() {
1148 // copy reference to target object
1149 var target = arguments[0],
1152 // extend jQuery itself if only one argument is passed
1153 if ( arguments.length == 1 ) {
1158 while (prop = arguments[a++])
1159 // Extend the base object
1160 for ( var i in prop ) target[i] = prop[i];
1162 // Return the modified object
1168 * Run this function to give control of the $ variable back
1169 * to whichever library first implemented it. This helps to make
1170 * sure that jQuery doesn't conflict with the $ object
1171 * of other libraries.
1173 * By using this function, you will only be able to access jQuery
1174 * using the 'jQuery' variable. For example, where you used to do
1175 * $("div p"), you now must do jQuery("div p").
1177 * @example jQuery.noConflict();
1178 * // Do something with jQuery
1179 * jQuery("div p").hide();
1180 * // Do something with another library's $()
1181 * $("content").style.display = 'none';
1182 * @desc Maps the original object that was referenced by $ back to $
1184 * @example jQuery.noConflict();
1187 * // more code using $ as alias to jQuery
1190 * // other code using $ as an alias to the other library
1191 * @desc Reverts the $ alias and then creates and executes a
1192 * function to provide the $ as a jQuery alias inside the functions
1193 * scope. Inside the function the original $ object is not available.
1194 * This works well for most plugins that don't rely on any other library.
1197 * @name $.noConflict
1201 noConflict: function() {
1207 * A generic iterator function, which can be used to seemlessly
1208 * iterate over both objects and arrays. This function is not the same
1209 * as $().each() - which is used to iterate, exclusively, over a jQuery
1210 * object. This function can be used to iterate over anything.
1212 * The callback has two arguments:the key (objects) or index (arrays) as first
1213 * the first, and the value as the second.
1215 * @example $.each( [0,1,2], function(i, n){
1216 * alert( "Item #" + i + ": " + n );
1218 * @desc This is an example of iterating over the items in an array,
1219 * accessing both the current item and its index.
1221 * @example $.each( { name: "John", lang: "JS" }, function(i, n){
1222 * alert( "Name: " + i + ", Value: " + n );
1225 * @desc This is an example of iterating over the properties in an
1226 * Object, accessing both the current item and its key.
1229 * @param Object obj The object, or array, to iterate over.
1230 * @param Function fn The function that will be executed on every object.
1234 // args is for internal usage only
1235 each: function( obj, fn, args ) {
1236 if ( obj.length == undefined )
1237 for ( var i in obj )
1238 fn.apply( obj[i], args || [i, obj[i]] );
1240 for ( var i = 0, ol = obj.length; i < ol; i++ )
1241 if ( fn.apply( obj[i], args || [i, obj[i]] ) === false ) break;
1245 prop: function(elem, value, type){
1246 // Handle executable functions
1247 if ( value.constructor == Function )
1248 return value.call( elem )
1250 // Handle passing in a number to a CSS property
1251 if ( value.constructor == Number && type == "css" )
1252 return value + "px";
1258 // internal only, use addClass("class")
1259 add: function( elem, c ){
1260 jQuery.each( c.split(/\s+/), function(i, cur){
1261 if ( !jQuery.className.has( elem.className, cur ) )
1262 elem.className += ( elem.className ? " " : "" ) + cur;
1266 // internal only, use removeClass("class")
1267 remove: function( elem, c ){
1268 elem.className = c ?
1269 jQuery.grep( elem.className.split(/\s+/), function(cur){
1270 return !jQuery.className.has( c, cur );
1274 // internal only, use is(".class")
1275 has: function( t, c ) {
1276 t = t.className || t;
1277 return t && new RegExp("(^|\\s)" + c + "(\\s|$)").test( t );
1282 * Swap in/out style options.
1285 swap: function(e,o,f) {
1286 for ( var i in o ) {
1287 e.style["old"+i] = e.style[i];
1292 e.style[i] = e.style["old"+i];
1295 css: function(e,p) {
1296 if ( p == "height" || p == "width" ) {
1297 var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
1299 for ( var i = 0, dl = d.length; i < dl; i++ ) {
1300 old["padding" + d[i]] = 0;
1301 old["border" + d[i] + "Width"] = 0;
1304 jQuery.swap( e, old, function() {
1305 if (jQuery.css(e,"display") != "none") {
1306 oHeight = e.offsetHeight;
1307 oWidth = e.offsetWidth;
1309 e = jQuery(e.cloneNode(true))
1310 .find(":radio").removeAttr("checked").end()
1312 visibility: "hidden", position: "absolute", display: "block", right: "0", left: "0"
1313 }).appendTo(e.parentNode)[0];
1315 var parPos = jQuery.css(e.parentNode,"position");
1316 if ( parPos == "" || parPos == "static" )
1317 e.parentNode.style.position = "relative";
1319 oHeight = e.clientHeight;
1320 oWidth = e.clientWidth;
1322 if ( parPos == "" || parPos == "static" )
1323 e.parentNode.style.position = "static";
1325 e.parentNode.removeChild(e);
1329 return p == "height" ? oHeight : oWidth;
1332 return jQuery.curCSS( e, p );
1335 curCSS: function(elem, prop, force) {
1338 if (prop == 'opacity' && jQuery.browser.msie)
1339 return jQuery.attr(elem.style, 'opacity');
1341 if (prop == "float" || prop == "cssFloat")
1342 prop = jQuery.browser.msie ? "styleFloat" : "cssFloat";
1344 if (!force && elem.style[prop])
1345 ret = elem.style[prop];
1347 else if (document.defaultView && document.defaultView.getComputedStyle) {
1349 if (prop == "cssFloat" || prop == "styleFloat")
1352 prop = prop.replace(/([A-Z])/g,"-$1").toLowerCase();
1353 var cur = document.defaultView.getComputedStyle(elem, null);
1356 ret = cur.getPropertyValue(prop);
1357 else if ( prop == 'display' )
1360 jQuery.swap(elem, { display: 'block' }, function() {
1361 var c = document.defaultView.getComputedStyle(this, '');
1362 ret = c && c.getPropertyValue(prop) || '';
1365 } else if (elem.currentStyle) {
1367 var newProp = prop.replace(/\-(\w)/g,function(m,c){return c.toUpperCase();});
1368 ret = elem.currentStyle[prop] || elem.currentStyle[newProp];
1375 clean: function(a) {
1378 for ( var i = 0, al = a.length; i < al; i++ ) {
1381 // Convert html string into DOM nodes
1382 if ( typeof arg == "string" ) {
1383 // Trim whitespace, otherwise indexOf won't work as expected
1384 var s = jQuery.trim(arg), div = document.createElement("div"), tb = [];
1387 // option or optgroup
1388 !s.indexOf("<opt") &&
1389 [1, "<select>", "</select>"] ||
1391 (!s.indexOf("<thead") || !s.indexOf("<tbody") || !s.indexOf("<tfoot")) &&
1392 [1, "<table>", "</table>"] ||
1394 !s.indexOf("<tr") &&
1395 [2, "<table><tbody>", "</tbody></table>"] ||
1397 // <thead> matched above
1398 (!s.indexOf("<td") || !s.indexOf("<th")) &&
1399 [3, "<table><tbody><tr>", "</tr></tbody></table>"] ||
1403 // Go to html and back, then peel off extra wrappers
1404 div.innerHTML = wrap[1] + s + wrap[2];
1406 // Move to the right depth
1408 div = div.firstChild;
1410 // Remove IE's autoinserted <tbody> from table fragments
1411 if ( jQuery.browser.msie ) {
1413 // String was a <table>, *may* have spurious <tbody>
1414 if ( !s.indexOf("<table") && s.indexOf("<tbody") < 0 )
1415 tb = div.firstChild && div.firstChild.childNodes;
1417 // String was a bare <thead> or <tfoot>
1418 else if ( wrap[1] == "<table>" && s.indexOf("<tbody") < 0 )
1419 tb = div.childNodes;
1421 for ( var n = tb.length-1; n >= 0 ; --n )
1422 if ( tb[n].nodeName.toUpperCase() == "TBODY" && !tb[n].childNodes.length )
1423 tb[n].parentNode.removeChild(tb[n]);
1427 arg = div.childNodes;
1433 r = jQuery.merge( r, arg );
1440 attr: function(elem, name, value){
1443 "class": "className",
1444 "float": jQuery.browser.msie ? "styleFloat" : "cssFloat",
1445 cssFloat: jQuery.browser.msie ? "styleFloat" : "cssFloat",
1446 innerHTML: "innerHTML",
1447 className: "className",
1449 disabled: "disabled",
1451 readonly: "readOnly",
1452 selected: "selected"
1455 // IE actually uses filters for opacity ... elem is actually elem.style
1456 if ( name == "opacity" && jQuery.browser.msie && value != undefined ) {
1457 // IE has trouble with opacity if it does not have layout
1458 // Force it by setting the zoom level
1461 // Set the alpha filter to set the opacity
1462 return elem.filter = elem.filter.replace(/alpha\([^\)]*\)/gi,"") +
1463 ( value == 1 ? "" : "alpha(opacity=" + value * 100 + ")" );
1465 } else if ( name == "opacity" && jQuery.browser.msie )
1466 return elem.filter ?
1467 parseFloat( elem.filter.match(/alpha\(opacity=(.*)\)/)[1] ) / 100 : 1;
1469 // Mozilla doesn't play well with opacity 1
1470 if ( name == "opacity" && jQuery.browser.mozilla && value == 1 )
1473 // Certain attributes only work when accessed via the old DOM 0 way
1475 if ( value != undefined ) elem[fix[name]] = value;
1476 return elem[fix[name]];
1478 } else if ( value == undefined && jQuery.browser.msie && elem.nodeName && elem.nodeName.toUpperCase() == 'FORM' && (name == 'action' || name == 'method') )
1479 return elem.getAttributeNode(name).nodeValue;
1481 // IE elem.getAttribute passes even for style
1482 else if ( elem.tagName ) {
1483 if ( value != undefined ) elem.setAttribute( name, value );
1484 return elem.getAttribute( name );
1487 name = name.replace(/-([a-z])/ig,function(z,b){return b.toUpperCase();});
1488 if ( value != undefined ) elem[name] = value;
1494 * Remove the whitespace from the beginning and end of a string.
1496 * @example $.trim(" hello, how are you? ");
1497 * @result "hello, how are you?"
1501 * @param String str The string to trim.
1505 return t.replace(/^\s+|\s+$/g, "");
1508 makeArray: function( a ) {
1511 if ( a.constructor != Array )
1512 for ( var i = 0, al = a.length; i < al; i++ )
1520 inArray: function( b, a ) {
1521 for ( var i = 0, al = a.length; i < al; i++ )
1528 * Merge two arrays together, removing all duplicates.
1530 * The new array is: All the results from the first array, followed
1531 * by the unique results from the second array.
1533 * @example $.merge( [0,1,2], [2,3,4] )
1534 * @result [0,1,2,3,4]
1535 * @desc Merges two arrays, removing the duplicate 2
1537 * @example $.merge( [3,2,1], [4,3,2] )
1539 * @desc Merges two arrays, removing the duplicates 3 and 2
1543 * @param Array first The first array to merge.
1544 * @param Array second The second array to merge.
1547 merge: function(first, second) {
1548 var r = [].slice.call( first, 0 );
1550 // Now check for duplicates between the two arrays
1551 // and only add the unique items
1552 for ( var i = 0, sl = second.length; i < sl; i++ )
1553 // Check for duplicates
1554 if ( jQuery.inArray( second[i], r ) == -1 )
1555 // The item is unique, add it
1556 first.push( second[i] );
1562 * Filter items out of an array, by using a filter function.
1564 * The specified function will be passed two arguments: The
1565 * current array item and the index of the item in the array. The
1566 * function must return 'true' to keep the item in the array,
1567 * false to remove it.
1569 * @example $.grep( [0,1,2], function(i){
1576 * @param Array array The Array to find items in.
1577 * @param Function fn The function to process each item against.
1578 * @param Boolean inv Invert the selection - select the opposite of the function.
1581 grep: function(elems, fn, inv) {
1582 // If a string is passed in for the function, make a function
1583 // for it (a handy shortcut)
1584 if ( typeof fn == "string" )
1585 fn = new Function("a","i","return " + fn);
1589 // Go through the array, only saving the items
1590 // that pass the validator function
1591 for ( var i = 0, el = elems.length; i < el; i++ )
1592 if ( !inv && fn(elems[i],i) || inv && !fn(elems[i],i) )
1593 result.push( elems[i] );
1599 * Translate all items in an array to another array of items.
1601 * The translation function that is provided to this method is
1602 * called for each item in the array and is passed one argument:
1603 * The item to be translated.
1605 * The function can then return the translated value, 'null'
1606 * (to remove the item), or an array of values - which will
1607 * be flattened into the full array.
1609 * @example $.map( [0,1,2], function(i){
1613 * @desc Maps the original array to a new one and adds 4 to each value.
1615 * @example $.map( [0,1,2], function(i){
1616 * return i > 0 ? i + 1 : null;
1619 * @desc Maps the original array to a new one and adds 1 to each
1620 * value if it is bigger then zero, otherwise it's removed-
1622 * @example $.map( [0,1,2], function(i){
1623 * return [ i, i + 1 ];
1625 * @result [0, 1, 1, 2, 2, 3]
1626 * @desc Maps the original array to a new one, each element is added
1627 * with it's original value and the value plus one.
1631 * @param Array array The Array to translate.
1632 * @param Function fn The function to process each item against.
1635 map: function(elems, fn) {
1636 // If a string is passed in for the function, make a function
1637 // for it (a handy shortcut)
1638 if ( typeof fn == "string" )
1639 fn = new Function("a","return " + fn);
1641 var result = [], r = [];
1643 // Go through the array, translating each of the items to their
1644 // new value (or values).
1645 for ( var i = 0, el = elems.length; i < el; i++ ) {
1646 var val = fn(elems[i],i);
1648 if ( val !== null && val != undefined ) {
1649 if ( val.constructor != Array ) val = [val];
1650 result = result.concat( val );
1654 var r = result.length ? [ result[0] ] : [];
1656 check: for ( var i = 1, rl = result.length; i < rl; i++ ) {
1657 for ( var j = 0; j < i; j++ )
1658 if ( result[i] == r[j] )
1661 r.push( result[i] );
1669 * Contains flags for the useragent, read from navigator.userAgent.
1670 * Available flags are: safari, opera, msie, mozilla
1672 * This property is available before the DOM is ready, therefore you can
1673 * use it to add ready events only for certain browsers.
1675 * There are situations where object detections is not reliable enough, in that
1676 * cases it makes sense to use browser detection. Simply try to avoid both!
1678 * A combination of browser and object detection yields quite reliable results.
1680 * @example $.browser.msie
1681 * @desc Returns true if the current useragent is some version of microsoft's internet explorer
1683 * @example if($.browser.safari) { $( function() { alert("this is safari!"); } ); }
1684 * @desc Alerts "this is safari!" only for safari browsers
1693 * Wheather the W3C compliant box model is being used.
1701 var b = navigator.userAgent.toLowerCase();
1703 // Figure out what browser is being used
1705 safari: /webkit/.test(b),
1706 opera: /opera/.test(b),
1707 msie: /msie/.test(b) && !/opera/.test(b),
1708 mozilla: /mozilla/.test(b) && !/(compatible|webkit)/.test(b)
1711 // Check to see if the W3C box model is being used
1712 jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
1716 * Get a set of elements containing the unique parents of the matched
1719 * Can be filtered with an optional expressions.
1721 * @example $("p").parent()
1722 * @before <div><p>Hello</p><p>Hello</p></div>
1723 * @result [ <div><p>Hello</p><p>Hello</p></div> ]
1724 * @desc Find the parent element of each paragraph.
1726 * @example $("p").parent(".selected")
1727 * @before <div><p>Hello</p></div><div class="selected"><p>Hello Again</p></div>
1728 * @result [ <div class="selected"><p>Hello Again</p></div> ]
1729 * @desc Find the parent element of each paragraph with a class "selected".
1733 * @param String expr (optional) An expression to filter the parents with
1734 * @cat DOM/Traversing
1738 * Get a set of elements containing the unique ancestors of the matched
1739 * set of elements (except for the root element).
1741 * Can be filtered with an optional expressions.
1743 * @example $("span").parents()
1744 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
1745 * @result [ <body>...</body>, <div>...</div>, <p><span>Hello</span></p> ]
1746 * @desc Find all parent elements of each span.
1748 * @example $("span").parents("p")
1749 * @before <html><body><div><p><span>Hello</span></p><span>Hello Again</span></div></body></html>
1750 * @result [ <p><span>Hello</span></p> ]
1751 * @desc Find all parent elements of each span that is a paragraph.
1755 * @param String expr (optional) An expression to filter the ancestors with
1756 * @cat DOM/Traversing
1760 * Get a set of elements containing the unique next siblings of each of the
1761 * matched set of elements.
1763 * It only returns the very next sibling, not all next siblings.
1765 * Can be filtered with an optional expressions.
1767 * @example $("p").next()
1768 * @before <p>Hello</p><p>Hello Again</p><div><span>And Again</span></div>
1769 * @result [ <p>Hello Again</p>, <div><span>And Again</span></div> ]
1770 * @desc Find the very next sibling of each paragraph.
1772 * @example $("p").next(".selected")
1773 * @before <p>Hello</p><p class="selected">Hello Again</p><div><span>And Again</span></div>
1774 * @result [ <p class="selected">Hello Again</p> ]
1775 * @desc Find the very next sibling of each paragraph that has a class "selected".
1779 * @param String expr (optional) An expression to filter the next Elements with
1780 * @cat DOM/Traversing
1784 * Get a set of elements containing the unique previous siblings of each of the
1785 * matched set of elements.
1787 * Can be filtered with an optional expressions.
1789 * It only returns the immediately previous sibling, not all previous siblings.
1791 * @example $("p").prev()
1792 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
1793 * @result [ <div><span>Hello Again</span></div> ]
1794 * @desc Find the very previous sibling of each paragraph.
1796 * @example $("p").prev(".selected")
1797 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
1798 * @result [ <div><span>Hello</span></div> ]
1799 * @desc Find the very previous sibling of each paragraph that has a class "selected".
1803 * @param String expr (optional) An expression to filter the previous Elements with
1804 * @cat DOM/Traversing
1808 * Get a set of elements containing all of the unique siblings of each of the
1809 * matched set of elements.
1811 * Can be filtered with an optional expressions.
1813 * @example $("div").siblings()
1814 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
1815 * @result [ <p>Hello</p>, <p>And Again</p> ]
1816 * @desc Find all siblings of each div.
1818 * @example $("div").siblings(".selected")
1819 * @before <div><span>Hello</span></div><p class="selected">Hello Again</p><p>And Again</p>
1820 * @result [ <p class="selected">Hello Again</p> ]
1821 * @desc Find all siblings with a class "selected" of each div.
1825 * @param String expr (optional) An expression to filter the sibling Elements with
1826 * @cat DOM/Traversing
1830 * Get a set of elements containing all of the unique children of each of the
1831 * matched set of elements.
1833 * Can be filtered with an optional expressions.
1835 * @example $("div").children()
1836 * @before <p>Hello</p><div><span>Hello Again</span></div><p>And Again</p>
1837 * @result [ <span>Hello Again</span> ]
1838 * @desc Find all children of each div.
1840 * @example $("div").children(".selected")
1841 * @before <div><span>Hello</span><p class="selected">Hello Again</p><p>And Again</p></div>
1842 * @result [ <p class="selected">Hello Again</p> ]
1843 * @desc Find all children with a class "selected" of each div.
1847 * @param String expr (optional) An expression to filter the child Elements with
1848 * @cat DOM/Traversing
1851 parent: "a.parentNode",
1852 parents: "jQuery.parents(a)",
1853 next: "jQuery.nth(a,2,'nextSibling')",
1854 prev: "jQuery.nth(a,2,'previousSibling')",
1855 siblings: "jQuery.sibling(a.parentNode.firstChild,a)",
1856 children: "jQuery.sibling(a.firstChild)"
1858 jQuery.fn[ i ] = function(a) {
1859 var ret = jQuery.map(this,n);
1860 if ( a && typeof a == "string" )
1861 ret = jQuery.multiFilter(a,ret);
1862 return this.pushStack( ret );
1867 * Append all of the matched elements to another, specified, set of elements.
1868 * This operation is, essentially, the reverse of doing a regular
1869 * $(A).append(B), in that instead of appending B to A, you're appending
1872 * @example $("p").appendTo("#foo");
1873 * @before <p>I would like to say: </p><div id="foo"></div>
1874 * @result <div id="foo"><p>I would like to say: </p></div>
1875 * @desc Appends all paragraphs to the element with the ID "foo"
1879 * @param <Content> content Content to append to the selected element to.
1880 * @cat DOM/Manipulation
1881 * @see append(<Content>)
1885 * Prepend all of the matched elements to another, specified, set of elements.
1886 * This operation is, essentially, the reverse of doing a regular
1887 * $(A).prepend(B), in that instead of prepending B to A, you're prepending
1890 * @example $("p").prependTo("#foo");
1891 * @before <p>I would like to say: </p><div id="foo"><b>Hello</b></div>
1892 * @result <div id="foo"><p>I would like to say: </p><b>Hello</b></div>
1893 * @desc Prepends all paragraphs to the element with the ID "foo"
1897 * @param <Content> content Content to prepend to the selected element to.
1898 * @cat DOM/Manipulation
1899 * @see prepend(<Content>)
1903 * Insert all of the matched elements before another, specified, set of elements.
1904 * This operation is, essentially, the reverse of doing a regular
1905 * $(A).before(B), in that instead of inserting B before A, you're inserting
1908 * @example $("p").insertBefore("#foo");
1909 * @before <div id="foo">Hello</div><p>I would like to say: </p>
1910 * @result <p>I would like to say: </p><div id="foo">Hello</div>
1911 * @desc Same as $("#foo").before("p")
1913 * @name insertBefore
1915 * @param <Content> content Content to insert the selected element before.
1916 * @cat DOM/Manipulation
1917 * @see before(<Content>)
1921 * Insert all of the matched elements after another, specified, set of elements.
1922 * This operation is, essentially, the reverse of doing a regular
1923 * $(A).after(B), in that instead of inserting B after A, you're inserting
1926 * @example $("p").insertAfter("#foo");
1927 * @before <p>I would like to say: </p><div id="foo">Hello</div>
1928 * @result <div id="foo">Hello</div><p>I would like to say: </p>
1929 * @desc Same as $("#foo").after("p")
1933 * @param <Content> content Content to insert the selected element after.
1934 * @cat DOM/Manipulation
1935 * @see after(<Content>)
1940 prependTo: "prepend",
1941 insertBefore: "before",
1942 insertAfter: "after"
1944 jQuery.fn[ i ] = function(){
1946 return this.each(function(){
1947 for ( var j = 0, al = a.length; j < al; j++ )
1948 jQuery(a[j])[n]( this );
1954 * Remove an attribute from each of the matched elements.
1956 * @example $("input").removeAttr("disabled")
1957 * @before <input disabled="disabled"/>
1962 * @param String name The name of the attribute to remove.
1963 * @cat DOM/Attributes
1967 * Adds the specified class(es) to each of the set of matched elements.
1969 * @example $("p").addClass("selected")
1970 * @before <p>Hello</p>
1971 * @result [ <p class="selected">Hello</p> ]
1973 * @example $("p").addClass("selected highlight")
1974 * @before <p>Hello</p>
1975 * @result [ <p class="selected highlight">Hello</p> ]
1979 * @param String class One or more CSS classes to add to the elements
1980 * @cat DOM/Attributes
1981 * @see removeClass(String)
1985 * Removes all or the specified class(es) from the set of matched elements.
1987 * @example $("p").removeClass()
1988 * @before <p class="selected">Hello</p>
1989 * @result [ <p>Hello</p> ]
1991 * @example $("p").removeClass("selected")
1992 * @before <p class="selected first">Hello</p>
1993 * @result [ <p class="first">Hello</p> ]
1995 * @example $("p").removeClass("selected highlight")
1996 * @before <p class="highlight selected first">Hello</p>
1997 * @result [ <p class="first">Hello</p> ]
2001 * @param String class (optional) One or more CSS classes to remove from the elements
2002 * @cat DOM/Attributes
2003 * @see addClass(String)
2007 * Adds the specified class if it is not present, removes it if it is
2010 * @example $("p").toggleClass("selected")
2011 * @before <p>Hello</p><p class="selected">Hello Again</p>
2012 * @result [ <p class="selected">Hello</p>, <p>Hello Again</p> ]
2016 * @param String class A CSS class with which to toggle the elements
2017 * @cat DOM/Attributes
2021 * Removes all matched elements from the DOM. This does NOT remove them from the
2022 * jQuery object, allowing you to use the matched elements further.
2024 * Can be filtered with an optional expressions.
2026 * @example $("p").remove();
2027 * @before <p>Hello</p> how are <p>you?</p>
2030 * @example $("p").remove(".hello");
2031 * @before <p class="hello">Hello</p> how are <p>you?</p>
2032 * @result how are <p>you?</p>
2036 * @param String expr (optional) A jQuery expression to filter elements by.
2037 * @cat DOM/Manipulation
2041 * Removes all child nodes from the set of matched elements.
2043 * @example $("p").empty()
2044 * @before <p>Hello, <span>Person</span> <a href="#">and person</a></p>
2045 * @result [ <p></p> ]
2049 * @cat DOM/Manipulation
2053 removeAttr: function( key ) {
2054 jQuery.attr( this, key, "" );
2055 this.removeAttribute( key );
2057 addClass: function(c){
2058 jQuery.className.add(this,c);
2060 removeClass: function(c){
2061 jQuery.className.remove(this,c);
2063 toggleClass: function( c ){
2064 jQuery.className[ jQuery.className.has(this,c) ? "remove" : "add" ](this, c);
2066 remove: function(a){
2067 if ( !a || jQuery.filter( a, [this] ).r.length )
2068 this.parentNode.removeChild( this );
2071 while ( this.firstChild )
2072 this.removeChild( this.firstChild );
2075 jQuery.fn[ i ] = function() {
2076 return this.each( n, arguments );
2081 * Reduce the set of matched elements to a single element.
2082 * The position of the element in the set of matched elements
2083 * starts at 0 and goes to length - 1.
2085 * @example $("p").eq(1)
2086 * @before <p>This is just a test.</p><p>So is this</p>
2087 * @result [ <p>So is this</p> ]
2091 * @param Number pos The index of the element that you wish to limit to.
2096 * Reduce the set of matched elements to all elements before a given position.
2097 * The position of the element in the set of matched elements
2098 * starts at 0 and goes to length - 1.
2100 * @example $("p").lt(1)
2101 * @before <p>This is just a test.</p><p>So is this</p>
2102 * @result [ <p>This is just a test.</p> ]
2106 * @param Number pos Reduce the set to all elements below this position.
2111 * Reduce the set of matched elements to all elements after a given position.
2112 * The position of the element in the set of matched elements
2113 * starts at 0 and goes to length - 1.
2115 * @example $("p").gt(0)
2116 * @before <p>This is just a test.</p><p>So is this</p>
2117 * @result [ <p>So is this</p> ]
2121 * @param Number pos Reduce the set to all elements after this position.
2126 * Filter the set of elements to those that contain the specified text.
2128 * @example $("p").contains("test")
2129 * @before <p>This is just a test.</p><p>So is this</p>
2130 * @result [ <p>This is just a test.</p> ]
2134 * @param String str The string that will be contained within the text of an element.
2135 * @cat DOM/Traversing
2137 jQuery.each( [ "eq", "lt", "gt", "contains" ], function(i,n){
2138 jQuery.fn[ n ] = function(num,fn) {
2139 return this.filter( ":" + n + "(" + num + ")", fn );
2144 * Get the current computed, pixel, width of the first matched element.
2146 * @example $("p").width();
2147 * @before <p>This is just a test.</p>
2156 * Set the CSS width of every matched element. If no explicit unit
2157 * was specified (like 'em' or '%') then "px" is added to the width.
2159 * @example $("p").width(20);
2160 * @before <p>This is just a test.</p>
2161 * @result <p style="width:20px;">This is just a test.</p>
2163 * @example $("p").width("20em");
2164 * @before <p>This is just a test.</p>
2165 * @result <p style="width:20em;">This is just a test.</p>
2169 * @param Number|String val Set the CSS property to the specified value.
2174 * Get the current computed, pixel, height of the first matched element.
2176 * @example $("p").height();
2177 * @before <p>This is just a test.</p>
2186 * Set the CSS width of every matched element. If no explicit unit
2187 * was specified (like 'em' or '%') then "px" is added to the width.
2189 * @example $("p").height(20);
2190 * @before <p>This is just a test.</p>
2191 * @result <p style="height:20px;">This is just a test.</p>
2193 * @example $("p").height("20em");
2194 * @before <p>This is just a test.</p>
2195 * @result <p style="height:20em;">This is just a test.</p>
2199 * @param Number|String val Set the CSS property to the specified value.
2203 jQuery.each( [ "height", "width" ], function(i,n){
2204 jQuery.fn[ n ] = function(h) {
2205 return h == undefined ?
2206 ( this.length ? jQuery.css( this[0], n ) : null ) :
2207 this.css( n, h.constructor == String ? h : h + "px" );