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 var pos = jQuery.expr.match.POS.test( selector ) ? jQuery(selector) : null;
347 return this.map(function(){
349 while ( cur && cur.ownerDocument ) {
350 if ( pos ? pos.index(cur) > -1 : jQuery(cur).is(selector) )
352 cur = cur.parentNode;
357 not: function( selector ) {
358 if ( typeof selector === "string" )
359 // test special case where just one selector is passed in
360 if ( isSimple.test( selector ) )
361 return this.pushStack( jQuery.multiFilter( selector, this, true ), "not", selector );
363 selector = jQuery.multiFilter( selector, this );
365 var isArrayLike = selector.length && selector[selector.length - 1] !== undefined && !selector.nodeType;
366 return this.filter(function() {
367 return isArrayLike ? jQuery.inArray( this, selector ) < 0 : this != selector;
371 add: function( selector ) {
372 return this.pushStack( jQuery.unique( jQuery.merge(
374 typeof selector === "string" ?
376 jQuery.makeArray( selector )
380 is: function( selector ) {
381 return !!selector && jQuery.multiFilter( selector, this ).length > 0;
384 hasClass: function( selector ) {
385 return !!selector && this.is( "." + selector );
388 val: function( value ) {
389 if ( value === undefined ) {
393 if( jQuery.nodeName( elem, 'option' ) )
394 return (elem.attributes.value || {}).specified ? elem.value : elem.text;
396 // We need to handle select boxes special
397 if ( jQuery.nodeName( elem, "select" ) ) {
398 var index = elem.selectedIndex,
400 options = elem.options,
401 one = elem.type == "select-one";
403 // Nothing was selected
407 // Loop through all the selected options
408 for ( var i = one ? index : 0, max = one ? index + 1 : options.length; i < max; i++ ) {
409 var option = options[ i ];
411 if ( option.selected ) {
412 // Get the specifc value for the option
413 value = jQuery(option).val();
415 // We don't need an array for one selects
419 // Multi-Selects return an array
420 values.push( value );
427 // Everything else, we just grab the value
428 return (elem.value || "").replace(/\r/g, "");
435 if ( typeof value === "number" )
438 return this.each(function(){
439 if ( this.nodeType != 1 )
442 if ( jQuery.isArray(value) && /radio|checkbox/.test( this.type ) )
443 this.checked = (jQuery.inArray(this.value, value) >= 0 ||
444 jQuery.inArray(this.name, value) >= 0);
446 else if ( jQuery.nodeName( this, "select" ) ) {
447 var values = jQuery.makeArray(value);
449 jQuery( "option", this ).each(function(){
450 this.selected = (jQuery.inArray( this.value, values ) >= 0 ||
451 jQuery.inArray( this.text, values ) >= 0);
454 if ( !values.length )
455 this.selectedIndex = -1;
462 html: function( value ) {
463 return value === undefined ?
467 this.empty().append( value );
470 replaceWith: function( value ) {
471 return this.after( value ).remove();
475 return this.slice( i, +i + 1 );
479 return this.pushStack( Array.prototype.slice.apply( this, arguments ),
480 "slice", Array.prototype.slice.call(arguments).join(",") );
483 map: function( callback ) {
484 return this.pushStack( jQuery.map(this, function(elem, i){
485 return callback.call( elem, i, elem );
489 andSelf: function() {
490 return this.add( this.prevObject );
493 domManip: function( args, table, callback ) {
495 var fragment = (this[0].ownerDocument || this[0]).createDocumentFragment(),
496 scripts = jQuery.clean( args, (this[0].ownerDocument || this[0]), fragment ),
497 first = fragment.firstChild,
498 extra = this.length > 1 ? fragment.cloneNode(true) : fragment;
501 for ( var i = 0, l = this.length; i < l; i++ )
502 callback.call( root(this[i], first), i > 0 ? extra.cloneNode(true) : fragment );
505 jQuery.each( scripts, evalScript );
510 function root( elem, cur ) {
511 return table && jQuery.nodeName(elem, "table") && jQuery.nodeName(cur, "tr") ?
512 (elem.getElementsByTagName("tbody")[0] ||
513 elem.appendChild(elem.ownerDocument.createElement("tbody"))) :
519 // Give the init function the jQuery prototype for later instantiation
520 jQuery.fn.init.prototype = jQuery.fn;
522 function evalScript( i, elem ) {
531 jQuery.globalEval( elem.text || elem.textContent || elem.innerHTML || "" );
533 if ( elem.parentNode )
534 elem.parentNode.removeChild( elem );
541 jQuery.extend = jQuery.fn.extend = function() {
542 // copy reference to target object
543 var target = arguments[0] || {}, i = 1, length = arguments.length, deep = false, options;
545 // Handle a deep copy situation
546 if ( typeof target === "boolean" ) {
548 target = arguments[1] || {};
549 // skip the boolean and the target
553 // Handle case when target is a string or something (possible in deep copy)
554 if ( typeof target !== "object" && !jQuery.isFunction(target) )
557 // extend jQuery itself if only one argument is passed
563 for ( ; i < length; i++ )
564 // Only deal with non-null/undefined values
565 if ( (options = arguments[ i ]) != null )
566 // Extend the base object
567 for ( var name in options ) {
568 var src = target[ name ], copy = options[ name ];
570 // Prevent never-ending loop
571 if ( target === copy )
574 // Recurse if we're merging object values
575 if ( deep && copy && typeof copy === "object" && !copy.nodeType )
576 target[ name ] = jQuery.extend( deep,
577 // Never move original objects, clone them
578 src || ( copy.length != null ? [ ] : { } )
581 // Don't bring in undefined values
582 else if ( copy !== undefined )
583 target[ name ] = copy;
587 // Return the modified object
591 // exclude the following css properties to add px
592 var exclude = /z-?index|font-?weight|opacity|zoom|line-?height/i,
594 defaultView = document.defaultView || {},
595 toString = Object.prototype.toString;
598 noConflict: function( deep ) {
602 window.jQuery = _jQuery;
607 // See test/unit/core.js for details concerning isFunction.
608 // Since version 1.3, DOM methods and functions like alert
609 // aren't supported. They return false on IE (#2968).
610 isFunction: function( obj ) {
611 return toString.call(obj) === "[object Function]";
614 isArray: function( obj ) {
615 return toString.call(obj) === "[object Array]";
618 // check if an element is in a (or is an) XML document
619 isXMLDoc: function( elem ) {
620 return elem.documentElement && !elem.body ||
621 elem.tagName && elem.ownerDocument && !elem.ownerDocument.body;
624 // Evalulates a script in a global context
625 globalEval: function( data ) {
626 data = jQuery.trim( data );
629 // Inspired by code by Andrea Giammarchi
630 // http://webreflection.blogspot.com/2007/08/global-scope-evaluation-and-dom.html
631 var head = document.getElementsByTagName("head")[0] || document.documentElement,
632 script = document.createElement("script");
634 script.type = "text/javascript";
635 if ( jQuery.support.scriptEval )
636 script.appendChild( document.createTextNode( data ) );
640 // Use insertBefore instead of appendChild to circumvent an IE6 bug.
641 // This arises when a base node is used (#2709).
642 head.insertBefore( script, head.firstChild );
643 head.removeChild( script );
647 nodeName: function( elem, name ) {
648 return elem.nodeName && elem.nodeName.toUpperCase() == name.toUpperCase();
651 // args is for internal usage only
652 each: function( object, callback, args ) {
653 var name, i = 0, length = object.length;
656 if ( length === undefined ) {
657 for ( name in object )
658 if ( callback.apply( object[ name ], args ) === false )
661 for ( ; i < length; )
662 if ( callback.apply( object[ i++ ], args ) === false )
665 // A special, fast, case for the most common use of each
667 if ( length === undefined ) {
668 for ( name in object )
669 if ( callback.call( object[ name ], name, object[ name ] ) === false )
672 for ( var value = object[0];
673 i < length && callback.call( value, i, value ) !== false; value = object[++i] ){}
679 prop: function( elem, value, type, i, name ) {
680 // Handle executable functions
681 if ( jQuery.isFunction( value ) )
682 value = value.call( elem, i );
684 // Handle passing in a number to a CSS property
685 return typeof value === "number" && type == "curCSS" && !exclude.test( name ) ?
691 // internal only, use addClass("class")
692 add: function( elem, classNames ) {
693 jQuery.each((classNames || "").split(/\s+/), function(i, className){
694 if ( elem.nodeType == 1 && !jQuery.className.has( elem.className, className ) )
695 elem.className += (elem.className ? " " : "") + className;
699 // internal only, use removeClass("class")
700 remove: function( elem, classNames ) {
701 if (elem.nodeType == 1)
702 elem.className = classNames !== undefined ?
703 jQuery.grep(elem.className.split(/\s+/), function(className){
704 return !jQuery.className.has( classNames, className );
709 // internal only, use hasClass("class")
710 has: function( elem, className ) {
711 return jQuery.inArray( className, (elem.className || elem).toString().split(/\s+/) ) > -1;
715 // A method for quickly swapping in/out CSS properties to get correct calculations
716 swap: function( elem, options, callback ) {
718 // Remember the old values, and insert the new ones
719 for ( var name in options ) {
720 old[ name ] = elem.style[ name ];
721 elem.style[ name ] = options[ name ];
724 callback.call( elem );
726 // Revert the old values
727 for ( var name in options )
728 elem.style[ name ] = old[ name ];
731 css: function( elem, name, force ) {
732 if ( name == "width" || name == "height" ) {
733 var val, props = { position: "absolute", visibility: "hidden", display:"block" }, which = name == "width" ? [ "Left", "Right" ] : [ "Top", "Bottom" ];
736 val = name == "width" ? elem.offsetWidth : elem.offsetHeight;
737 var padding = 0, border = 0;
738 jQuery.each( which, function() {
739 padding += parseFloat(jQuery.curCSS( elem, "padding" + this, true)) || 0;
740 border += parseFloat(jQuery.curCSS( elem, "border" + this + "Width", true)) || 0;
742 val -= Math.round(padding + border);
745 if ( jQuery(elem).is(":visible") )
748 jQuery.swap( elem, props, getWH );
750 return Math.max(0, val);
753 return jQuery.curCSS( elem, name, force );
756 curCSS: function( elem, name, force ) {
757 var ret, style = elem.style;
759 // We need to handle opacity special in IE
760 if ( name == "opacity" && !jQuery.support.opacity ) {
761 ret = jQuery.attr( style, "opacity" );
768 // Make sure we're using the right name for getting the float value
769 if ( name.match( /float/i ) )
772 if ( !force && style && style[ name ] )
775 else if ( defaultView.getComputedStyle ) {
777 // Only "float" is needed here
778 if ( name.match( /float/i ) )
781 name = name.replace( /([A-Z])/g, "-$1" ).toLowerCase();
783 var computedStyle = defaultView.getComputedStyle( elem, null );
786 ret = computedStyle.getPropertyValue( name );
788 // We should always get a number back from opacity
789 if ( name == "opacity" && ret == "" )
792 } else if ( elem.currentStyle ) {
793 var camelCase = name.replace(/\-(\w)/g, function(all, letter){
794 return letter.toUpperCase();
797 ret = elem.currentStyle[ name ] || elem.currentStyle[ camelCase ];
799 // From the awesome hack by Dean Edwards
800 // http://erik.eae.net/archives/2007/07/27/18.54.15/#comment-102291
802 // If we're not dealing with a regular pixel number
803 // but a number that has a weird ending, we need to convert it to pixels
804 if ( !/^\d+(px)?$/i.test( ret ) && /^\d/.test( ret ) ) {
805 // Remember the original values
806 var left = style.left, rsLeft = elem.runtimeStyle.left;
808 // Put in the new values to get a computed value out
809 elem.runtimeStyle.left = elem.currentStyle.left;
810 style.left = ret || 0;
811 ret = style.pixelLeft + "px";
813 // Revert the changed values
815 elem.runtimeStyle.left = rsLeft;
822 clean: function( elems, context, fragment ) {
823 context = context || document;
825 // !context.createElement fails in IE with an error but returns typeof 'object'
826 if ( typeof context.createElement === "undefined" )
827 context = context.ownerDocument || context[0] && context[0].ownerDocument || document;
829 // If a single string is passed in and it's a single tag
830 // just do a createElement and skip the rest
831 if ( !fragment && elems.length === 1 && typeof elems[0] === "string" ) {
832 var match = /^<(\w+)\s*\/?>$/.exec(elems[0]);
834 return [ context.createElement( match[1] ) ];
837 var ret = [], scripts = [], div = context.createElement("div");
839 jQuery.each(elems, function(i, elem){
840 if ( typeof elem === "number" )
846 // Convert html string into DOM nodes
847 if ( typeof elem === "string" ) {
848 // Fix "XHTML"-style tags in all browsers
849 elem = elem.replace(/(<(\w+)[^>]*?)\/>/g, function(all, front, tag){
850 return tag.match(/^(abbr|br|col|img|input|link|meta|param|hr|area|embed)$/i) ?
852 front + "></" + tag + ">";
855 // Trim whitespace, otherwise indexOf won't work as expected
856 var tags = jQuery.trim( elem ).toLowerCase();
859 // option or optgroup
860 !tags.indexOf("<opt") &&
861 [ 1, "<select multiple='multiple'>", "</select>" ] ||
863 !tags.indexOf("<leg") &&
864 [ 1, "<fieldset>", "</fieldset>" ] ||
866 tags.match(/^<(thead|tbody|tfoot|colg|cap)/) &&
867 [ 1, "<table>", "</table>" ] ||
869 !tags.indexOf("<tr") &&
870 [ 2, "<table><tbody>", "</tbody></table>" ] ||
872 // <thead> matched above
873 (!tags.indexOf("<td") || !tags.indexOf("<th")) &&
874 [ 3, "<table><tbody><tr>", "</tr></tbody></table>" ] ||
876 !tags.indexOf("<col") &&
877 [ 2, "<table><tbody></tbody><colgroup>", "</colgroup></table>" ] ||
879 // IE can't serialize <link> and <script> tags normally
880 !jQuery.support.htmlSerialize &&
881 [ 1, "div<div>", "</div>" ] ||
885 // Go to html and back, then peel off extra wrappers
886 div.innerHTML = wrap[1] + elem + wrap[2];
888 // Move to the right depth
892 // Remove IE's autoinserted <tbody> from table fragments
893 if ( !jQuery.support.tbody ) {
895 // String was a <table>, *may* have spurious <tbody>
896 var tbody = !tags.indexOf("<table") && tags.indexOf("<tbody") < 0 ?
897 div.firstChild && div.firstChild.childNodes :
899 // String was a bare <thead> or <tfoot>
900 wrap[1] == "<table>" && tags.indexOf("<tbody") < 0 ?
904 for ( var j = tbody.length - 1; j >= 0 ; --j )
905 if ( jQuery.nodeName( tbody[ j ], "tbody" ) && !tbody[ j ].childNodes.length )
906 tbody[ j ].parentNode.removeChild( tbody[ j ] );
910 // IE completely kills leading whitespace when innerHTML is used
911 if ( !jQuery.support.leadingWhitespace && /^\s/.test( elem ) )
912 div.insertBefore( context.createTextNode( elem.match(/^\s*/)[0] ), div.firstChild );
914 elem = jQuery.makeArray( div.childNodes );
920 ret = jQuery.merge( ret, elem );
925 for ( var i = 0; ret[i]; i++ ) {
926 if ( jQuery.nodeName( ret[i], "script" ) && (!ret[i].type || ret[i].type === "text/javascript") ) {
927 scripts.push( ret[i].parentNode ? ret[i].parentNode.removeChild( ret[i] ) : ret[i] );
929 if ( ret[i].nodeType === 1 )
930 ret.splice.apply( ret, [i + 1, 0].concat(jQuery.makeArray(ret[i].getElementsByTagName("script"))) );
931 fragment.appendChild( ret[i] );
941 attr: function( elem, name, value ) {
942 // don't set attributes on text and comment nodes
943 if (!elem || elem.nodeType == 3 || elem.nodeType == 8)
946 var notxml = !jQuery.isXMLDoc( elem ),
947 // Whether we are setting (or getting)
948 set = value !== undefined;
950 // Try to normalize/fix the name
951 name = notxml && jQuery.props[ name ] || name;
953 // Only do all the following if this is a node (faster for style)
954 // IE elem.getAttribute passes even for style
955 if ( elem.tagName ) {
957 // These attributes require special treatment
958 var special = /href|src|style/.test( name );
960 // Safari mis-reports the default selected property of a hidden option
961 // Accessing the parent's selectedIndex property fixes it
962 if ( name == "selected" )
963 elem.parentNode.selectedIndex;
965 // If applicable, access the attribute via the DOM 0 way
966 if ( name in elem && notxml && !special ) {
968 // We can't allow the type property to be changed (since it causes problems in IE)
969 if ( name == "type" && jQuery.nodeName( elem, "input" ) && elem.parentNode )
970 throw "type property can't be changed";
972 elem[ name ] = value;
975 // browsers index elements by id/name on forms, give priority to attributes.
976 if( jQuery.nodeName( elem, "form" ) && elem.getAttributeNode(name) )
977 return elem.getAttributeNode( name ).nodeValue;
979 // elem.tabIndex doesn't always return the correct value when it hasn't been explicitly set
980 // http://fluidproject.org/blog/2008/01/09/getting-setting-and-removing-tabindex-values-with-javascript/
981 if ( name == "tabIndex" ) {
982 var attributeNode = elem.getAttributeNode( "tabIndex" );
983 return attributeNode && attributeNode.specified
984 ? attributeNode.value
985 : elem.nodeName.match(/^(a|area|button|input|object|select|textarea)$/i)
993 if ( !jQuery.support.style && notxml && name == "style" )
994 return jQuery.attr( elem.style, "cssText", value );
997 // convert the value to a string (all browsers do this but IE) see #1070
998 elem.setAttribute( name, "" + value );
1000 var attr = !jQuery.support.hrefNormalized && notxml && special
1001 // Some attributes require a special call on IE
1002 ? elem.getAttribute( name, 2 )
1003 : elem.getAttribute( name );
1005 // Non-existent attributes return null, we normalize to undefined
1006 return attr === null ? undefined : attr;
1009 // elem is actually elem.style ... set the style
1011 // IE uses filters for opacity
1012 if ( !jQuery.support.opacity && name == "opacity" ) {
1014 // IE has trouble with opacity if it does not have layout
1015 // Force it by setting the zoom level
1018 // Set the alpha filter to set the opacity
1019 elem.filter = (elem.filter || "").replace( /alpha\([^)]*\)/, "" ) +
1020 (parseInt( value ) + '' == "NaN" ? "" : "alpha(opacity=" + value * 100 + ")");
1023 return elem.filter && elem.filter.indexOf("opacity=") >= 0 ?
1024 (parseFloat( elem.filter.match(/opacity=([^)]*)/)[1] ) / 100) + '':
1028 name = name.replace(/-([a-z])/ig, function(all, letter){
1029 return letter.toUpperCase();
1033 elem[ name ] = value;
1035 return elem[ name ];
1038 trim: function( text ) {
1039 return (text || "").replace( /^\s+|\s+$/g, "" );
1042 makeArray: function( array ) {
1045 if( array != null ){
1046 var i = array.length;
1047 // The window, strings (and functions) also have 'length'
1048 if( i == null || typeof array === "string" || jQuery.isFunction(array) || array.setInterval )
1052 ret[--i] = array[i];
1058 inArray: function( elem, array ) {
1059 for ( var i = 0, length = array.length; i < length; i++ )
1060 // Use === because on IE, window == document
1061 if ( array[ i ] === elem )
1067 merge: function( first, second ) {
1068 // We have to loop this way because IE & Opera overwrite the length
1069 // expando of getElementsByTagName
1070 var i = 0, elem, pos = first.length;
1071 // Also, we need to make sure that the correct elements are being returned
1072 // (IE returns comment nodes in a '*' query)
1073 if ( !jQuery.support.getAll ) {
1074 while ( (elem = second[ i++ ]) != null )
1075 if ( elem.nodeType != 8 )
1076 first[ pos++ ] = elem;
1079 while ( (elem = second[ i++ ]) != null )
1080 first[ pos++ ] = elem;
1085 unique: function( array ) {
1086 var ret = [], done = {};
1090 for ( var i = 0, length = array.length; i < length; i++ ) {
1091 var id = jQuery.data( array[ i ] );
1093 if ( !done[ id ] ) {
1095 ret.push( array[ i ] );
1106 grep: function( elems, callback, inv ) {
1109 // Go through the array, only saving the items
1110 // that pass the validator function
1111 for ( var i = 0, length = elems.length; i < length; i++ )
1112 if ( !inv != !callback( elems[ i ], i ) )
1113 ret.push( elems[ i ] );
1118 map: function( elems, callback ) {
1121 // Go through the array, translating each of the items to their
1122 // new value (or values).
1123 for ( var i = 0, length = elems.length; i < length; i++ ) {
1124 var value = callback( elems[ i ], i );
1126 if ( value != null )
1127 ret[ ret.length ] = value;
1130 return ret.concat.apply( [], ret );
1134 // Use of jQuery.browser is deprecated.
1135 // It's included for backwards compatibility and plugins,
1136 // although they should work to migrate away.
1138 var userAgent = navigator.userAgent.toLowerCase();
1140 // Figure out what browser is being used
1142 version: (userAgent.match( /.+(?:rv|it|ra|ie)[\/: ]([\d.]+)/ ) || [0,'0'])[1],
1143 safari: /webkit/.test( userAgent ),
1144 opera: /opera/.test( userAgent ),
1145 msie: /msie/.test( userAgent ) && !/opera/.test( userAgent ),
1146 mozilla: /mozilla/.test( userAgent ) && !/(compatible|webkit)/.test( userAgent )
1150 parent: function(elem){return elem.parentNode;},
1151 parents: function(elem){return jQuery.dir(elem,"parentNode");},
1152 next: function(elem){return jQuery.nth(elem,2,"nextSibling");},
1153 prev: function(elem){return jQuery.nth(elem,2,"previousSibling");},
1154 nextAll: function(elem){return jQuery.dir(elem,"nextSibling");},
1155 prevAll: function(elem){return jQuery.dir(elem,"previousSibling");},
1156 siblings: function(elem){return jQuery.sibling(elem.parentNode.firstChild,elem);},
1157 children: function(elem){return jQuery.sibling(elem.firstChild);},
1158 contents: function(elem){return jQuery.nodeName(elem,"iframe")?elem.contentDocument||elem.contentWindow.document:jQuery.makeArray(elem.childNodes);}
1159 }, function(name, fn){
1160 jQuery.fn[ name ] = function( selector ) {
1161 var ret = jQuery.map( this, fn );
1163 if ( selector && typeof selector == "string" )
1164 ret = jQuery.multiFilter( selector, ret );
1166 return this.pushStack( jQuery.unique( ret ), name, selector );
1172 prependTo: "prepend",
1173 insertBefore: "before",
1174 insertAfter: "after",
1175 replaceAll: "replaceWith"
1176 }, function(name, original){
1177 jQuery.fn[ name ] = function() {
1178 var args = arguments;
1180 return this.each(function(){
1181 for ( var i = 0, length = args.length; i < length; i++ )
1182 jQuery( args[ i ] )[ original ]( this );
1188 removeAttr: function( name ) {
1189 jQuery.attr( this, name, "" );
1190 if (this.nodeType == 1)
1191 this.removeAttribute( name );
1194 addClass: function( classNames ) {
1195 jQuery.className.add( this, classNames );
1198 removeClass: function( classNames ) {
1199 jQuery.className.remove( this, classNames );
1202 toggleClass: function( classNames, state ) {
1203 if( typeof state !== "boolean" )
1204 state = !jQuery.className.has( this, classNames );
1205 jQuery.className[ state ? "add" : "remove" ]( this, classNames );
1208 remove: function( selector ) {
1209 if ( !selector || jQuery.filter( selector, [ this ] ).length ) {
1210 // Prevent memory leaks
1211 jQuery( "*", this ).add([this]).each(function(){
1212 jQuery.event.remove(this);
1213 jQuery.removeData(this);
1215 if (this.parentNode)
1216 this.parentNode.removeChild( this );
1221 // Remove element nodes and prevent memory leaks
1222 jQuery( ">*", this ).remove();
1224 // Remove any remaining nodes
1225 while ( this.firstChild )
1226 this.removeChild( this.firstChild );
1228 }, function(name, fn){
1229 jQuery.fn[ name ] = function(){
1230 return this.each( fn, arguments );
1234 // Helper function used by the dimensions and offset modules
1235 function num(elem, prop) {
1236 return elem[0] && parseInt( jQuery.curCSS(elem[0], prop, true), 10 ) || 0;