2 // Will speed up references to window, and allows munging its name.
4 // Will speed up references to undefined, and allows munging its name.
6 // Map over jQuery in case of overwrite
7 _jQuery = window.jQuery,
8 // Map over the $ in case of overwrite
11 jQuery = window.jQuery = window.$ = function( selector, context ) {
12 // The jQuery object is actually just the init constructor 'enhanced'
13 return new jQuery.fn.init( selector, context );
16 // A simple way to check for HTML strings or ID strings
17 // (both of which we optimize for)
18 quickExpr = /^[^<]*(<(.|\s)+>)[^>]*$|^#([\w-]+)$/,
19 // Is it a simple selector
20 isSimple = /^.[^:#\[\.,]*$/;
22 jQuery.fn = jQuery.prototype = {
23 init: function( selector, context ) {
24 // Make sure that a selection was provided
25 selector = selector || document;
27 // Handle $(DOMElement)
28 if ( selector.nodeType ) {
31 this.context = selector;
34 // Handle HTML strings
35 if ( typeof selector === "string" ) {
36 // Are we dealing with HTML string or an ID?
37 var match = quickExpr.exec( selector );
39 // Verify a match, and that no context was specified for #id
40 if ( match && (match[1] || !context) ) {
42 // HANDLE: $(html) -> $(array)
44 selector = jQuery.clean( [ match[1] ], context );
48 var elem = document.getElementById( match[3] );
50 // Make sure an element was located
52 // Handle the case where IE and Opera return items
53 // by name instead of ID
54 if ( elem.id != match[3] )
55 return jQuery().find( selector );
57 // Otherwise, we inject the element directly into the jQuery object
58 var ret = jQuery( elem );
59 ret.context = document;
60 ret.selector = selector;
66 // HANDLE: $(expr, [context])
67 // (which is just equivalent to: $(content).find(expr)
69 return jQuery( context ).find( selector );
71 // HANDLE: $(function)
72 // Shortcut for document ready
73 } else if ( jQuery.isFunction( selector ) )
74 return jQuery( document ).ready( selector );
76 // Make sure that old selector state is passed along
77 if ( selector.selector && selector.context ) {
78 this.selector = selector.selector;
79 this.context = selector.context;
82 return this.setArray(jQuery.makeArray(selector));
85 // Start with an empty selector
88 // The current version of jQuery being used
91 // The number of elements contained in the matched element set
96 // Get the Nth element in the matched element set OR
97 // Get the whole matched element set as a clean array
98 get: function( num ) {
99 return num === undefined ?
101 // Return a 'clean' array
102 jQuery.makeArray( this ) :
104 // Return just the object
108 // Take an array of elements and push it onto the stack
109 // (returning the new matched element set)
110 pushStack: function( elems, name, selector ) {
111 // Build a new jQuery matched element set
112 var ret = jQuery( elems );
114 // Add the old object onto the stack (as a reference)
115 ret.prevObject = this;
117 ret.context = this.context;
119 if ( name === "find" )
120 ret.selector = this.selector + (this.selector ? " " : "") + selector;
122 ret.selector = this.selector + "." + name + "(" + selector + ")";
124 // Return the newly-formed element set
128 // Force the current matched set of elements to become
129 // the specified array of elements (destroying the stack in the process)
130 // You should use pushStack() in order to do this, but maintain the stack
131 setArray: function( elems ) {
132 // Resetting the length to 0, then using the native Array push
133 // is a super-fast way to populate an object with array-like properties
135 Array.prototype.push.apply( this, elems );
140 // Execute a callback for every element in the matched set.
141 // (You can seed the arguments with an array of args, but this is
142 // only used internally.)
143 each: function( callback, args ) {
144 return jQuery.each( this, callback, args );
147 // Determine the position of an element within
148 // the matched set of elements
149 index: function( elem ) {
150 // Locate the position of the desired element
151 return jQuery.inArray(
152 // If it receives a jQuery object, the first element is used
153 elem && elem.jquery ? elem[0] : elem
157 attr: function( name, value, type ) {
160 // Look for the case where we're accessing a style value
161 if ( typeof name === "string" )
162 if ( value === undefined )
163 return this[0] && jQuery[ type || "attr" ]( this[0], name );
167 options[ name ] = value;
170 // Check to see if we're setting style values
171 return this.each(function(i){
172 // Set all the styles
173 for ( name in options )
178 name, jQuery.prop( this, options[ name ], type, i, name )
183 css: function( key, value ) {
184 // ignore negative width and height values
185 if ( (key == 'width' || key == 'height') && parseFloat(value) < 0 )
187 return this.attr( key, value, "curCSS" );
190 text: function( text ) {
191 if ( typeof text !== "object" && text != null )
192 return this.empty().append( (this[0] && this[0].ownerDocument || document).createTextNode( text ) );
196 jQuery.each( text || this, function(){
197 jQuery.each( this.childNodes, function(){
198 if ( this.nodeType != 8 )
199 ret += this.nodeType != 1 ?
201 jQuery.fn.text( [ this ] );
208 wrapAll: function( html ) {
210 // The elements to wrap the target around
211 jQuery( html, this[0].ownerDocument )
213 .insertBefore( this[0] )
217 while ( elem.firstChild )
218 elem = elem.firstChild;
227 wrapInner: function( html ) {
228 return this.each(function(){
229 jQuery( this ).contents().wrapAll( html );
233 wrap: function( html ) {
234 return this.each(function(){
235 jQuery( this ).wrapAll( html );
240 return this.domManip(arguments, true, function(elem){
241 if (this.nodeType == 1)
242 this.appendChild( elem );
246 prepend: function() {
247 return this.domManip(arguments, true, function(elem){
248 if (this.nodeType == 1)
249 this.insertBefore( elem, this.firstChild );
254 return this.domManip(arguments, false, function(elem){
255 this.parentNode.insertBefore( elem, this );
260 return this.domManip(arguments, false, function(elem){
261 this.parentNode.insertBefore( elem, this.nextSibling );
266 return this.prevObject || jQuery( [] );
271 find: function( selector ) {
272 if ( this.length === 1 && !/,/.test(selector) ) {
273 var ret = this.pushStack( [], "find", selector );
275 jQuery.find( selector, this[0], ret );
278 var elems = jQuery.map(this, function(elem){
279 return jQuery.find( selector, elem );
282 return this.pushStack( /[^+>] [^+>]/.test( selector ) ?
283 jQuery.unique( elems ) :
284 elems, "find", selector );
288 clone: function( events ) {
290 var ret = this.map(function(){
291 if ( !jQuery.support.noCloneEvent && !jQuery.isXMLDoc(this) ) {
292 // IE copies events bound via attachEvent when
293 // using cloneNode. Calling detachEvent on the
294 // clone will also remove the events from the orignal
295 // In order to get around this, we use innerHTML.
296 // Unfortunately, this means some modifications to
297 // attributes in IE that are actually only stored
298 // as properties will not be copied (such as the
299 // the name attribute on an input).
300 var clone = this.cloneNode(true),
301 container = document.createElement("div");
302 container.appendChild(clone);
303 return jQuery.clean([container.innerHTML])[0];
305 return this.cloneNode(true);
308 // Need to set the expando to null on the cloned set if it exists
309 // removeData doesn't work here, IE removes it from the original as well
310 // this is primarily for IE but the data expando shouldn't be copied over in any browser
311 var clone = ret.find("*").andSelf().each(function(){
312 if ( this[ expando ] !== undefined )
313 this[ expando ] = null;
316 // Copy the events from the original to the clone
317 if ( events === true )
318 this.find("*").andSelf().each(function(i){
319 if (this.nodeType == 3)
321 var events = jQuery.data( this, "events" );
323 for ( var type in events )
324 for ( var handler in events[ type ] )
325 jQuery.event.add( clone[ i ], type, events[ type ][ handler ], events[ type ][ handler ].data );
328 // Return the cloned set
332 filter: function( selector ) {
333 return this.pushStack(
334 jQuery.isFunction( selector ) &&
335 jQuery.grep(this, function(elem, i){
336 return selector.call( elem, i );
339 jQuery.multiFilter( selector, jQuery.grep(this, function(elem){
340 return elem.nodeType === 1;
341 }) ), "filter", selector );
344 closest: function( selector ) {
345 return this.map(function(){
347 while ( cur && cur.ownerDocument ) {
348 if ( jQuery(cur).is(selector) )
350 cur = cur.parentNode;
355 not: function( selector ) {
356 if ( typeof selector === "string" )
357 // test special case where just one selector is passed in
358 if ( isSimple.test( selector ) )
359 return this.pushStack( jQuery.multiFilter( selector, this, true ), "not", selector );
361 selector = jQuery.multiFilter( selector, this );
363 var isArrayLike = selector.length && selector[selector.length - 1] !== undefined && !selector.nodeType;
364 return this.filter(function() {
365 return isArrayLike ? jQuery.inArray( this, selector ) < 0 : this != selector;
369 add: function( selector ) {
370 return this.pushStack( jQuery.unique( jQuery.merge(
372 typeof selector === "string" ?
374 jQuery.makeArray( selector )
378 is: function( selector ) {
379 return !!selector && jQuery.multiFilter( selector, this ).length > 0;
382 hasClass: function( selector ) {
383 return !!selector && this.is( "." + selector );
386 val: function( value ) {
387 if ( value === undefined ) {
391 if( jQuery.nodeName( elem, 'option' ) )
392 return (elem.attributes.value || {}).specified ? elem.value : elem.text;
394 // We need to handle select boxes special
395 if ( jQuery.nodeName( elem, "select" ) ) {
396 var index = elem.selectedIndex,
398 options = elem.options,
399 one = elem.type == "select-one";
401 // Nothing was selected
405 // Loop through all the selected options
406 for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
407 var option = options[ i ];
409 if ( option.selected ) {
410 // Get the specifc value for the option
411 value = jQuery(option).val();
413 // We don't need an array for one selects
417 // Multi-Selects return an array
418 values.push( value );
425 // Everything else, we just grab the value
426 return (elem.value || "").replace(/\r/g, "");
433 if ( typeof value === "number" )
436 return this.each(function(){
437 if ( this.nodeType != 1 )
440 if ( jQuery.isArray(value) && /radio|checkbox/.test( this.type ) )
441 this.checked = (jQuery.inArray(this.value, value) >= 0 ||
442 jQuery.inArray(this.name, value) >= 0);
444 else if ( jQuery.nodeName( this, "select" ) ) {
445 var values = jQuery.makeArray(value);
447 jQuery( "option", this ).each(function(){
448 this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
449 jQuery.inArray( this.text, values ) >= 0);
452 if ( !values.length )
453 this.selectedIndex = -1;
460 html: function( value ) {
461 return value === undefined ?
465 this.empty().append( value );
468 replaceWith: function( value ) {
469 return this.after( value ).remove();
473 return this.slice( i, +i + 1 );
477 return this.pushStack( Array.prototype.slice.apply( this, arguments ),
478 "slice", Array.prototype.slice.call(arguments).join(",") );
481 map: function( callback ) {
482 return this.pushStack( jQuery.map(this, function(elem, i){
483 return callback.call( elem, i, elem );
487 andSelf: function() {
488 return this.add( this.prevObject );
491 domManip: function( args, table, callback ) {
493 var fragment = (this[0].ownerDocument || this[0]).createDocumentFragment(),
494 scripts = jQuery.clean( args, (this[0].ownerDocument || this[0]), fragment ),
495 first = fragment.firstChild,
496 extra = this.length > 1 ? fragment.cloneNode(true) : fragment;
499 for ( var i = 0, l = this.length; i < l; i++ )
500 callback.call( root(this[i], first), i > 0 ? extra.cloneNode(true) : fragment );
503 jQuery.each( scripts, evalScript );
508 function root( elem, cur ) {
509 return table && jQuery.nodeName(elem, "table") && jQuery.nodeName(cur, "tr") ?
510 (elem.getElementsByTagName("tbody")[0] ||
511 elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
517 // Give the init function the jQuery prototype for later instantiation
518 jQuery.fn.init.prototype = jQuery.fn;
520 function evalScript( i, elem ) {
529 jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
531 if ( elem.parentNode )
532 elem.parentNode.removeChild( elem );
539 jQuery.extend = jQuery.fn.extend = function() {
540 // copy reference to target object
541 var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;
543 // Handle a deep copy situation
544 if ( typeof target === "boolean" ) {
546 target = arguments[1] || {};
547 // skip the boolean and the target
551 // Handle case when target is a string or something (possible in deep copy)
552 if ( typeof target !== "object" && !jQuery.isFunction(target) )
555 // extend jQuery itself if only one argument is passed
561 for ( ; i < length; i++ )
562 // Only deal with non-null/undefined values
563 if ( (options = arguments[ i ]) != null )
564 // Extend the base object
565 for ( var name in options ) {
566 var src = target[ name ], copy = options[ name ];
568 // Prevent never-ending loop
569 if ( target === copy )
572 // Recurse if we're merging object values
573 if ( deep && copy && typeof copy === "object" && !copy.nodeType )
574 target[ name ] = jQuery.extend( deep,
575 // Never move original objects, clone them
576 src || ( copy.length != null ? [ ] : { } )
579 // Don't bring in undefined values
580 else if ( copy !== undefined )
581 target[ name ] = copy;
585 // Return the modified object
589 // exclude the following css properties to add px
590 var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
592 defaultView = document.defaultView || {},
593 toString = Object.prototype.toString;
596 noConflict: function( deep ) {
600 window.jQuery = _jQuery;
605 // See test/unit/core.js for details concerning isFunction.
606 // Since version 1.3, DOM methods and functions like alert
607 // aren't supported. They return false on IE (#2968).
608 isFunction: function( obj ) {
609 return toString.call(obj) === "[object Function]";
612 isArray: function( obj ) {
613 return toString.call(obj) === "[object Array]";
616 // check if an element is in a (or is an) XML document
617 isXMLDoc: function( elem ) {
618 return elem.documentElement && !elem.body ||
619 elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
622 // Evalulates a script in a global context
623 globalEval: function( data ) {
624 data = jQuery.trim( data );
627 // Inspired by code by Andrea Giammarchi
628 // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
629 var head = document.getElementsByTagName("head")[0] || document.documentElement,
630 script = document.createElement("script");
632 script.type = "text/javascript";
633 if ( jQuery.support.scriptEval )
634 script.appendChild( document.createTextNode( data ) );
638 // Use insertBefore instead of appendChild to circumvent an IE6 bug.
639 // This arises when a base node is used (#2709).
640 head.insertBefore( script, head.firstChild );
641 head.removeChild( script );
645 nodeName: function( elem, name ) {
646 return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
649 // args is for internal usage only
650 each: function( object, callback, args ) {
651 var name, i = 0, length = object.length;
654 if ( length === undefined ) {
655 for ( name in object )
656 if ( callback.apply( object[ name ], args ) === false )
659 for ( ; i < length; )
660 if ( callback.apply( object[ i++ ], args ) === false )
663 // A special, fast, case for the most common use of each
665 if ( length === undefined ) {
666 for ( name in object )
667 if ( callback.call( object[ name ], name, object[ name ] ) === false )
670 for ( var value = object[0];
671 i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
677 prop: function( elem, value, type, i, name ) {
678 // Handle executable functions
679 if ( jQuery.isFunction( value ) )
680 value = value.call( elem, i );
682 // Handle passing in a number to a CSS property
683 return typeof value === "number" && type == "curCSS" && !exclude.test( name ) ?
689 // internal only, use addClass("class")
690 add: function( elem, classNames ) {
691 jQuery.each((classNames || "").split(/\s+/), function(i, className){
692 if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
693 elem.className += (elem.className ? " " : "") + className;
697 // internal only, use removeClass("class")
698 remove: function( elem, classNames ) {
699 if (elem.nodeType == 1)
700 elem.className = classNames !== undefined ?
701 jQuery.grep(elem.className.split(/\s+/), function(className){
702 return !jQuery.className.has( classNames, className );
707 // internal only, use hasClass("class")
708 has: function( elem, className ) {
709 return jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
713 // A method for quickly swapping in/out CSS properties to get correct calculations
714 swap: function( elem, options, callback ) {
716 // Remember the old values, and insert the new ones
717 for ( var name in options ) {
718 old[ name ] = elem.style[ name ];
719 elem.style[ name ] = options[ name ];
722 callback.call( elem );
724 // Revert the old values
725 for ( var name in options )
726 elem.style[ name ] = old[ name ];
729 css: function( elem, name, force ) {
730 if ( name == "width" || name == "height" ) {
731 var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];
734 val = name == "width" ? elem.offsetWidth : elem.offsetHeight;
735 var padding = 0, border = 0;
736 jQuery.each( which, function() {
737 padding += parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
738 border += parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
740 val -= Math.round(padding + border);
743 if ( jQuery(elem).is(":visible") )
746 jQuery.swap( elem, props, getWH );
748 return Math.max(0, val);
751 return jQuery.curCSS( elem, name, force );
754 curCSS: function( elem, name, force ) {
755 var ret, style = elem.style;
757 // We need to handle opacity special in IE
758 if ( name == "opacity" && !jQuery.support.opacity ) {
759 ret = jQuery.attr( style, "opacity" );
766 // Make sure we're using the right name for getting the float value
767 if ( name.match( /float/i ) )
770 if ( !force && style && style[ name ] )
773 else if ( defaultView.getComputedStyle ) {
775 // Only "float" is needed here
776 if ( name.match( /float/i ) )
779 name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
781 var computedStyle = defaultView.getComputedStyle( elem, null );
784 ret = computedStyle.getPropertyValue( name );
786 // We should always get a number back from opacity
787 if ( name == "opacity" && ret == "" )
790 } else if ( elem.currentStyle ) {
791 var camelCase = name.replace(/\-(\w)/g, function(all, letter){
792 return letter.toUpperCase();
795 ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
797 // From the awesome hack by Dean Edwards
798 // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
800 // If we're not dealing with a regular pixel number
801 // but a number that has a weird ending, we need to convert it to pixels
802 if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) {
803 // Remember the original values
804 var left = style.left, rsLeft = elem.runtimeStyle.left;
806 // Put in the new values to get a computed value out
807 elem.runtimeStyle.left = elem.currentStyle.left;
808 style.left = ret || 0;
809 ret = style.pixelLeft + "px";
811 // Revert the changed values
813 elem.runtimeStyle.left = rsLeft;
820 clean: function( elems, context, fragment ) {
821 context = context || document;
823 // !context.createElement fails in IE with an error but returns typeof 'object'
824 if ( typeof context.createElement === "undefined" )
825 context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
827 // If a single string is passed in and it's a single tag
828 // just do a createElement and skip the rest
829 if ( !fragment && elems.length === 1 && typeof elems[0] === "string" ) {
830 var match = /^<(\w+)\s*\/?>$/.exec(elems[0]);
832 return [ context.createElement( match[1] ) ];
835 var ret = [], scripts = [], div = context.createElement("div");
837 jQuery.each(elems, function(i, elem){
838 if ( typeof elem === "number" )
844 // Convert html string into DOM nodes
845 if ( typeof elem === "string" ) {
846 // Fix "XHTML"-style tags in all browsers
847 elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){
848 return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
850 front + "></" + tag + ">";
853 // Trim whitespace, otherwise indexOf won't work as expected
854 var tags = jQuery.trim( elem ).toLowerCase();
857 // option or optgroup
858 !tags.indexOf("<opt") &&
859 [ 1, "<select multiple='multiple'>", "</select>" ] ||
861 !tags.indexOf("<leg") &&
862 [ 1, "<fieldset>", "</fieldset>" ] ||
864 tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
865 [ 1, "<table>", "</table>" ] ||
867 !tags.indexOf("<tr") &&
868 [ 2, "<table><tbody>", "</tbody></table>" ] ||
870 // <thead> matched above
871 (!tags.indexOf("<td") || !tags.indexOf("<th")) &&
872 [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ] ||
874 !tags.indexOf("<col") &&
875 [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ] ||
877 // IE can't serialize <link> and <script> tags normally
878 !jQuery.support.htmlSerialize &&
879 [ 1, "div<div>", "</div>" ] ||
883 // Go to html and back, then peel off extra wrappers
884 div.innerHTML = wrap[1] + elem + wrap[2];
886 // Move to the right depth
890 // Remove IE's autoinserted <tbody> from table fragments
891 if ( !jQuery.support.tbody ) {
893 // String was a <table>, *may* have spurious <tbody>
894 var tbody = !tags.indexOf("<table") && tags.indexOf("<tbody") < 0 ?
895 div.firstChild && div.firstChild.childNodes :
897 // String was a bare <thead> or <tfoot>
898 wrap[1] == "<table>" && tags.indexOf("<tbody") < 0 ?
902 for ( var j = tbody.length - 1; j >= 0 ; --j )
903 if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length )
904 tbody[ j ].parentNode.removeChild( tbody[ j ] );
908 // IE completely kills leading whitespace when innerHTML is used
909 if ( !jQuery.support.leadingWhitespace && /^\s/.test( elem ) )
910 div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild );
912 elem = jQuery.makeArray( div.childNodes );
918 ret = jQuery.merge( ret, elem );
923 for ( var i = 0; ret[i]; i++ ) {
924 if ( jQuery.nodeName( ret[i], "script" ) ) {
925 scripts.push( ret[i].parentNode.removeChild( ret[i] ) );
927 if ( ret[i].nodeType === 1 )
928 ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );
929 fragment.appendChild( ret[i] );
939 attr: function( elem, name, value ) {
940 // don't set attributes on text and comment nodes
941 if (!elem || elem.nodeType == 3 || elem.nodeType == 8)
944 var notxml = !jQuery.isXMLDoc( elem ),
945 // Whether we are setting (or getting)
946 set = value !== undefined;
948 // Try to normalize/fix the name
949 name = notxml && jQuery.props[ name ] || name;
951 // Only do all the following if this is a node (faster for style)
952 // IE elem.getAttribute passes even for style
953 if ( elem.tagName ) {
955 // These attributes require special treatment
956 var special = /href|src|style/.test( name );
958 // Safari mis-reports the default selected property of a hidden option
959 // Accessing the parent's selectedIndex property fixes it
960 if ( name == "selected" )
961 elem.parentNode.selectedIndex;
963 // If applicable, access the attribute via the DOM 0 way
964 if ( name in elem && notxml && !special ) {
966 // We can't allow the type property to be changed (since it causes problems in IE)
967 if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode )
968 throw "type property can't be changed";
970 elem[ name ] = value;
973 // browsers index elements by id/name on forms, give priority to attributes.
974 if( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) )
975 return elem.getAttributeNode( name ).nodeValue;
977 // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
978 // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
979 if ( name == "tabIndex" ) {
980 var attributeNode = elem.getAttributeNode( "tabIndex" );
981 return attributeNode && attributeNode.specified
982 ? attributeNode.value
983 : elem.nodeName.match(/^(a|area|button|input|object|select|textarea)$/i)
991 if ( !jQuery.support.style && notxml && name == "style" )
992 return jQuery.attr( elem.style, "cssText", value );
995 // convert the value to a string (all browsers do this but IE) see #1070
996 elem.setAttribute( name, "" + value );
998 var attr = !jQuery.support.hrefNormalized && notxml && special
999 // Some attributes require a special call on IE
1000 ? elem.getAttribute( name, 2 )
1001 : elem.getAttribute( name );
1003 // Non-existent attributes return null, we normalize to undefined
1004 return attr === null ? undefined : attr;
1007 // elem is actually elem.style ... set the style
1009 // IE uses filters for opacity
1010 if ( !jQuery.support.opacity && name == "opacity" ) {
1012 // IE has trouble with opacity if it does not have layout
1013 // Force it by setting the zoom level
1016 // Set the alpha filter to set the opacity
1017 elem.filter = (elem.filter || "").replace( /alpha\([^)]*\)/, "" ) +
1018 (parseInt( value ) + '' == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
1021 return elem.filter && elem.filter.indexOf("opacity=") >= 0 ?
1022 (parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100) + '':
1026 name = name.replace(/-([a-z])/ig, function(all, letter){
1027 return letter.toUpperCase();
1031 elem[ name ] = value;
1033 return elem[ name ];
1036 trim: function( text ) {
1037 return (text || "").replace( /^\s+|\s+$/g, "" );
1040 makeArray: function( array ) {
1043 if( array != null ){
1044 var i = array.length;
1045 // The window, strings (and functions) also have 'length'
1046 if( i == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval )
1050 ret[--i] = array[i];
1056 inArray: function( elem, array ) {
1057 for ( var i = 0, length = array.length; i < length; i++ )
1058 // Use === because on IE, window == document
1059 if ( array[ i ] === elem )
1065 merge: function( first, second ) {
1066 // We have to loop this way because IE & Opera overwrite the length
1067 // expando of getElementsByTagName
1068 var i = 0, elem, pos = first.length;
1069 // Also, we need to make sure that the correct elements are being returned
1070 // (IE returns comment nodes in a '*' query)
1071 if ( !jQuery.support.getAll ) {
1072 while ( (elem = second[ i++ ]) != null )
1073 if ( elem.nodeType != 8 )
1074 first[ pos++ ] = elem;
1077 while ( (elem = second[ i++ ]) != null )
1078 first[ pos++ ] = elem;
1083 unique: function( array ) {
1084 var ret = [], done = {};
1088 for ( var i = 0, length = array.length; i < length; i++ ) {
1089 var id = jQuery.data( array[ i ] );
1091 if ( !done[ id ] ) {
1093 ret.push( array[ i ] );
1104 grep: function( elems, callback, inv ) {
1107 // Go through the array, only saving the items
1108 // that pass the validator function
1109 for ( var i = 0, length = elems.length; i < length; i++ )
1110 if ( !inv != !callback( elems[ i ], i ) )
1111 ret.push( elems[ i ] );
1116 map: function( elems, callback ) {
1119 // Go through the array, translating each of the items to their
1120 // new value (or values).
1121 for ( var i = 0, length = elems.length; i < length; i++ ) {
1122 var value = callback( elems[ i ], i );
1124 if ( value != null )
1125 ret[ ret.length ] = value;
1128 return ret.concat.apply( [], ret );
1132 // Use of jQuery.browser is deprecated.
1133 // It's included for backwards compatibility and plugins,
1134 // although they should work to migrate away.
1136 var userAgent = navigator.userAgent.toLowerCase();
1138 // Figure out what browser is being used
1140 version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
1141 safari: /webkit/.test( userAgent ),
1142 opera: /opera/.test( userAgent ),
1143 msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
1144 mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
1147 // Check to see if the W3C box model is being used
1148 jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
1151 parent: function(elem){return elem.parentNode;},
1152 parents: function(elem){return jQuery.dir(elem,"parentNode");},
1153 next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
1154 prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
1155 nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
1156 prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
1157 siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
1158 children: function(elem){return jQuery.sibling(elem.firstChild);},
1159 contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
1160 }, function(name, fn){
1161 jQuery.fn[ name ] = function( selector ) {
1162 var ret = jQuery.map( this, fn );
1164 if ( selector && typeof selector == "string" )
1165 ret = jQuery.multiFilter( selector, ret );
1167 return this.pushStack( jQuery.unique( ret ), name, selector );
1173 prependTo: "prepend",
1174 insertBefore: "before",
1175 insertAfter: "after",
1176 replaceAll: "replaceWith"
1177 }, function(name, original){
1178 jQuery.fn[ name ] = function() {
1179 var args = arguments;
1181 return this.each(function(){
1182 for ( var i = 0, length = args.length; i < length; i++ )
1183 jQuery( args[ i ] )[ original ]( this );
1189 removeAttr: function( name ) {
1190 jQuery.attr( this, name, "" );
1191 if (this.nodeType == 1)
1192 this.removeAttribute( name );
1195 addClass: function( classNames ) {
1196 jQuery.className.add( this, classNames );
1199 removeClass: function( classNames ) {
1200 jQuery.className.remove( this, classNames );
1203 toggleClass: function( classNames, state ) {
1204 if( typeof state !== "boolean" )
1205 state = !jQuery.className.has( this, classNames );
1206 jQuery.className[ state ? "add" : "remove" ]( this, classNames );
1209 remove: function( selector ) {
1210 if ( !selector || jQuery.filter( selector, [ this ] ).length ) {
1211 // Prevent memory leaks
1212 jQuery( "*", this ).add([this]).each(function(){
1213 jQuery.event.remove(this);
1214 jQuery.removeData(this);
1216 if (this.parentNode)
1217 this.parentNode.removeChild( this );
1222 // Remove element nodes and prevent memory leaks
1223 jQuery( ">*", this ).remove();
1225 // Remove any remaining nodes
1226 while ( this.firstChild )
1227 this.removeChild( this.firstChild );
1229 }, function(name, fn){
1230 jQuery.fn[ name ] = function(){
1231 return this.each( fn, arguments );
1235 // Helper function used by the dimensions and offset modules
1236 function num(elem, prop) {
1237 return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0;