2 * jQuery - New Wave Javascript
4 * Copyright (c) 2006 John Resig (jquery.com)
5 * Licensed under the MIT License:
6 * http://www.opensource.org/licenses/mit-license.php
12 // Global undefined variable
13 window.undefined = window.undefined;
16 * Create a new jQuery Object
19 function jQuery(a,c) {
21 // Shortcut for document ready (because $(document).each() is silly)
22 if ( a && a.constructor == Function )
23 return $(document).ready(a);
25 // Make sure t hat a selection was provided
26 a = a || jQuery.context || document;
29 * Handle support for overriding other $() functions. Way too many libraries
30 * provide this function to simply ignore it and overwrite it.
33 // Check to see if this is a possible collision case
34 if ( jQuery._$ && !c && a.constructor == String &&
36 // Make sure that the expression is a colliding one
37 !/[^a-zA-Z0-9_-]/.test(a) &&
39 // and that there are no elements that match it
40 // (this is the one truly ambiguous case)
41 !document.getElementsByTagName(a).length )
43 // Use the default method, in case it works some voodoo
44 return jQuery._$( a );
46 // Watch for when a jQuery object is passed as the selector
50 // Watch for when a jQuery object is passed at the context
52 return $(c.get()).find(a);
54 // If the context is global, return a new object
56 return new jQuery(a,c);
58 // Watch for when an array is passed in
59 this.get( a.constructor == Array ?
60 // Assume that it's an array of DOM Elements
63 // Find the matching elements and save them for later
64 jQuery.find( a, c ) );
66 var fn = arguments[ arguments.length - 1 ];
67 if ( fn && fn.constructor == Function )
71 // Map over the $ in case of overwrite
75 // Map the jQuery namespace to the '$' one
78 jQuery.fn = jQuery.prototype = {
80 * The current SVN version of jQuery.
90 * The number of elements currently matched.
92 * @example $("img").length;
93 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
102 * The number of elements currently matched.
104 * @example $("img").size();
105 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
116 * Access all matched elements. This serves as a backwards-compatible
117 * way of accessing all matched elements (other than the jQuery object
118 * itself, which is, in fact, an array of elements).
120 * @example $("img").get();
121 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
122 * @result [ <img src="test1.jpg"/> <img src="test2.jpg"/> ]
125 * @type Array<Element>
129 * Access a single matched element. <tt>num</tt> is used to access the
130 * <tt>num</tt>th element matched.
132 * @example $("img").get(1);
133 * @before <img src="test1.jpg"/> <img src="test2.jpg"/>
134 * @result [ <img src="test1.jpg"/> ]
138 * @param Number num Access the element in the <tt>num</tt>th position.
142 * Set the jQuery object to an array of elements.
144 * @example $("img").get([ document.body ]);
145 * @result $("img").get() == [ document.body ]
150 * @param Elements elems An array of elements
152 get: function( num ) {
153 // Watch for when an array (of elements) is passed in
154 if ( num && num.constructor == Array ) {
156 // Use a tricky hack to make the jQuery object
157 // look and feel like an array
159 [].push.apply( this, num );
163 return num == undefined ?
165 // Return a 'clean' array
166 jQuery.map( this, function(a){ return a } ) :
168 // Return just the object
173 * Execute a function within the context of every matched element.
174 * This means that every time the passed-in function is executed
175 * (which is once for every element matched) the 'this' keyword
176 * points to the specific element.
178 * Additionally, the function, when executed, is passed a single
179 * argument representing the position of the element in the matched
182 * @example $("img").each(function(){ this.src = "test.jpg"; });
183 * @before <img/> <img/>
184 * @result <img src="test.jpg"/> <img src="test.jpg"/>
188 * @param Function fn A function to execute
190 each: function( fn ) {
191 // Iterate through all of the matched elements
192 for ( var i = 0; i < this.length; i++ )
194 // Execute the function within the context of each element
195 fn.apply( this[i], [i] );
201 * Access a property on the first matched element.
202 * This method makes it easy to retreive a property value
203 * from the first matched element.
205 * @example $("img").attr("src");
206 * @before <img src="test.jpg"/>
211 * @param String name The name of the property to access.
215 * Set a hash of key/value object properties to all matched elements.
216 * This serves as the best way to set a large number of properties
217 * on all matched elements.
219 * @example $("img").attr({ src: "test.jpg", alt: "Test Image" });
221 * @result <img src="test.jpg" alt="Test Image"/>
225 * @param Hash prop A set of key/value pairs to set as object properties.
229 * Set a single property to a value, on all matched elements.
231 * @example $("img").attr("src","test.jpg");
233 * @result <img src="test.jpg"/>
237 * @param String key The name of the property to set.
238 * @param Object value The value to set the property to.
240 attr: function( key, value, type ) {
241 // Check to see if we're setting style values
242 return key.constructor != String || value ?
243 this.each(function(){
244 // See if we're setting a hash of styles
245 if ( value == undefined )
246 // Set all the styles
247 for ( var prop in key )
249 type ? this.style : this,
253 // See if we're setting a single key/value style
256 type ? this.style : this,
261 // Look for the case where we're accessing a style value
262 jQuery[ type || "attr" ]( this[0], key );
266 * Access a style property on the first matched element.
267 * This method makes it easy to retreive a style property value
268 * from the first matched element.
270 * @example $("p").css("red");
271 * @before <p style="color:red;">Test Paragraph.</p>
276 * @param String name The name of the property to access.
280 * Set a hash of key/value style properties to all matched elements.
281 * This serves as the best way to set a large number of style properties
282 * on all matched elements.
284 * @example $("p").css({ color: "red", background: "blue" });
285 * @before <p>Test Paragraph.</p>
286 * @result <p style="color:red; background:blue;">Test Paragraph.</p>
290 * @param Hash prop A set of key/value pairs to set as style properties.
294 * Set a single style property to a value, on all matched elements.
296 * @example $("p").css("color","red");
297 * @before <p>Test Paragraph.</p>
298 * @result <p style="color:red;">Test Paragraph.</p>
302 * @param String key The name of the property to set.
303 * @param Object value The value to set the property to.
305 css: function( key, value ) {
306 return this.attr( key, value, "css" );
310 * Retreive the text contents of all matched elements. The result is
311 * a string that contains the combined text contents of all matched
312 * elements. This method works on both HTML and XML documents.
314 * @example $("p").text();
315 * @before <p>Test Paragraph.</p>
316 * @result Test Paragraph.
324 for ( var j = 0; j < e.length; j++ ) {
325 var r = e[j].childNodes;
326 for ( var i = 0; i < r.length; i++ )
327 t += r[i].nodeType != 1 ?
328 r[i].nodeValue : jQuery.fn.text([ r[i] ]);
334 * Wrap all matched elements with a structure of other elements.
335 * This wrapping process is most useful for injecting additional
336 * stucture into a document, without ruining the original semantic
337 * qualities of a document.
339 * The way that is works is that it goes through the first element argument
340 * provided and finds the deepest element within the structure - it is that
341 * element that will en-wrap everything else.
343 * @example $("p").wrap("<div class='wrap'></div>");
344 * @before <p>Test Paragraph.</p>
345 * @result <div class='wrap'><p>Test Paragraph.</p></div>
349 * @any String html A string of HTML, that will be created on the fly and wrapped around the target.
350 * @any Element elem A DOM element that will be wrapped.
351 * @any Array<Element> elems An array of elements, the first of which will be wrapped.
352 * @any Object obj Any object, converted to a string, then a text node.
355 // The elements to wrap the target around
356 var a = jQuery.clean(arguments);
358 // Wrap each of the matched elements individually
359 return this.each(function(){
360 // Clone the structure that we're using to wrap
361 var b = a[0].cloneNode(true);
363 // Insert it before the element to be wrapped
364 this.parentNode.insertBefore( b, this );
366 // Find he deepest point in the wrap structure
367 while ( b.firstChild )
370 // Move the matched element to within the wrap structure
371 b.appendChild( this );
376 * Append any number of elements to the inside of all matched elements.
377 * This operation is similar to doing an <tt>appendChild</tt> to all the
378 * specified elements, adding them into the document.
380 * @example $("p").append("<b>Hello</b>");
381 * @before <p>I would like to say: </p>
382 * @result <p>I would like to say: <b>Hello</b></p>
386 * @any String html A string of HTML, that will be created on the fly and appended to the target.
387 * @any Element elem A DOM element that will be appended.
388 * @any Array<Element> elems An array of elements, all of which will be appended.
389 * @any Object obj Any object, converted to a string, then a text node.
392 return this.domManip(arguments, true, 1, function(a){
393 this.appendChild( a );
398 * Prepend any number of elements to the inside of all matched elements.
399 * This operation is the best way to insert a set of elements inside, at the
400 * beginning, of all the matched element.
402 * @example $("p").prepend("<b>Hello</b>");
403 * @before <p>, how are you?</p>
404 * @result <p><b>Hello</b>, how are you?</p>
408 * @any String html A string of HTML, that will be created on the fly and prepended to the target.
409 * @any Element elem A DOM element that will be prepended.
410 * @any Array<Element> elems An array of elements, all of which will be prepended.
411 * @any Object obj Any object, converted to a string, then a text node.
413 prepend: function() {
414 return this.domManip(arguments, true, -1, function(a){
415 this.insertBefore( a, this.firstChild );
420 * Insert any number of elements before each of the matched elements.
422 * @example $("p").before("<b>Hello</b>");
423 * @before <p>how are you?</p>
424 * @result <b>Hello</b><p>how are you?</p>
428 * @any String html A string of HTML, that will be created on the fly and inserted.
429 * @any Element elem A DOM element that will beinserted.
430 * @any Array<Element> elems An array of elements, all of which will be inserted.
431 * @any Object obj Any object, converted to a string, then a text node.
434 return this.domManip(arguments, false, 1, function(a){
435 this.parentNode.insertBefore( a, this );
440 * Insert any number of elements after each of the matched elements.
442 * @example $("p").after("<p>I'm doing fine.</p>");
443 * @before <p>How are you?</p>
444 * @result <p>How are you?</p><p>I'm doing fine.</p>
448 * @any String html A string of HTML, that will be created on the fly and inserted.
449 * @any Element elem A DOM element that will beinserted.
450 * @any Array<Element> elems An array of elements, all of which will be inserted.
451 * @any Object obj Any object, converted to a string, then a text node.
454 return this.domManip(arguments, false, -1, function(a){
455 this.parentNode.insertBefore( a, this.nextSibling );
460 * End the most recent 'destructive' operation, reverting the list of matched elements
461 * back to its previous state. After an end operation, the list of matched elements will
462 * revert to the last state of matched elements.
464 * @example $("p").find("span").end();
465 * @before <p><span>Hello</span>, how are you?</p>
466 * @result $("p").find("span").end() == [ <p>...</p> ]
472 return this.get( this.stack.pop() );
476 * Searches for all elements that match the specified expression.
477 * This method is the optimal way of finding additional descendant
478 * elements with which to process.
480 * All searching is done using a jQuery expression. The expression can be
481 * written using CSS 1-3 Selector sytax, or basic XPath.
483 * @example $("p").find("span");
484 * @before <p><span>Hello</span>, how are you?</p>
485 * @result $("p").find("span") == [ <span>Hello</span> ]
489 * @param String expr An expression to search with.
492 return this.pushStack( jQuery.map( this, function(a){
493 return jQuery.find(t,a);
497 filter: function(t) {
498 return t.constructor == Array ?
500 this.pushStack( jQuery.map(this,function(a){
501 for ( var i = 0; i < t.length; i++ )
502 if ( jQuery.filter(t[i],[a]).r.length )
506 this.pushStack( jQuery.filter(t,this).r, arguments );
510 return this.pushStack( t.constructor == String ?
511 jQuery.filter(t,this,false).r :
512 jQuery.grep(this,function(a){ return a != t; }), arguments );
516 return this.pushStack( jQuery.merge( this, t.constructor == String ?
517 jQuery.find(t) : t.constructor == Array ? t : [t] ), arguments );
521 * A wrapper function for each() to be used by append and prepend.
522 * Handles cases where you're trying to modify the inner contents of
523 * a table, when you actually need to work with the tbody.
526 * @param {String} expr The expression with which to filter
530 return jQuery.filter(expr,this).r.length > 0;
539 * @param Boolean table
541 * @param Function fn The function doing the DOM manipulation.
544 domManip: function(args, table, dir, fn){
545 var clone = this.size() > 1;
546 var a = jQuery.clean(args);
548 return this.each(function(){
551 if ( table && this.nodeName == "TABLE" ) {
552 var tbody = this.getElementsByTagName("tbody");
554 if ( !tbody.length ) {
555 obj = document.createElement("tbody");
556 this.appendChild( obj );
561 for ( var i = ( dir < 0 ? a.length - 1 : 0 );
562 i != ( dir < 0 ? dir : a.length ); i += dir )
563 fn.apply( obj, [ a[i] ] );
576 pushStack: function(a,args) {
577 var fn = args && args[args.length-1];
579 if ( !fn || fn.constructor != Function ) {
580 if ( !this.stack ) this.stack = [];
581 this.stack.push( this.get() );
584 var old = this.get();
586 if ( fn.constructor == Function )
587 return this.each( fn );
594 extend: function(obj,prop) {
\r if ( !prop ) {
\r prop = obj;
\r obj = this;
\r }
\r \r for ( var i in prop )
\r obj[i] = prop[i];
\r \r return obj;
\r }
597 jQuery.extend = jQuery.fn.extend;
600 var b = navigator.userAgent.toLowerCase();
602 // Figure out what browser is being used
604 safari: /webkit/.test(b),
605 opera: /opera/.test(b),
606 msie: /msie/.test(b) && !/opera/.test(b),
607 mozilla: /mozilla/.test(b) && !/compatible/.test(b)
610 // Check to see if the W3C box model is being used
611 jQuery.boxModel = !jQuery.browser.msie || document.compatMode == "CSS1Compat";
614 parent: "a.parentNode",
615 parents: jQuery.parents,
616 ancestors: jQuery.parents,
617 next: "a.nextSibling",
618 prev: "a.previousSibling",
619 siblings: jQuery.sibling
622 for ( var i in axis ) new function(){
624 jQuery.fn[ i ] = function(a) {
625 var ret = jQuery.map(this,t);
626 if ( a ) ret = jQuery.filter(a,ret).r;
627 return this.pushStack( ret, arguments );
631 /*var to = ["append","prepend","before","after"];
633 for ( var i = 0; i < to.length; i++ ) new function(){
635 jQuery.fn[ n + "To" ] = function(){
637 return this.each(function(){
638 for ( var i = 0; i < a.length; i++ )
646 this.style.display = this.oldblock ? this.oldblock : "";
647 if ( jQuery.css(this,"display") == "none" )
648 this.style.display = "block";
652 this.oldblock = jQuery.css(this,"display");
653 if ( this.oldblock == "none" )
654 this.oldblock = "block";
655 this.style.display = "none";
659 var d = jQuery.css(this,"display");
660 $(this)[ !d || d == "none" ? "show" : "hide" ]();
663 addClass: function(c){
664 jQuery.className.add(this,c);
667 removeClass: function(c){
668 jQuery.className.remove(this,c);
671 toggleClass: function( c ){
672 jQuery.className[ jQuery.className.has(this,a) ? "remove" : "add" ](this,c);
676 if ( !a || jQuery.filter( [this], a ).r )
677 this.parentNode.removeChild( this );
681 while ( this.firstChild )
682 this.removeChild( this.firstChild );
685 bind: function( type, fn ) {
686 jQuery.event.add( this, type, fn );
689 unbind: function( type, fn ) {
690 jQuery.event.remove( this, type, fn );
693 trigger: function( type ) {
694 jQuery.event.trigger( this, type );
698 for ( var i in each ) new function() {
700 jQuery.fn[ i ] = function() {
701 var args = arguments;
702 return this.each(function(){
703 n.apply( this, args );
720 for ( var i in attr ) new function() {
722 jQuery.fn[ i ] = function(h) {
723 return h == undefined ?
724 this.length ? this[0][n] : null :
729 var css = "width,height,top,left,position,float,overflow,color,background".split(",");
731 for ( var i in css ) new function() {
733 jQuery.fn[ i ] = function(h) {
734 return h == undefined ?
735 this.length ? jQuery.css( this[0], n ) : null :
745 if (jQuery.className.has(o,c)) return;
746 o.className += ( o.className ? " " : "" ) + c;
748 remove: function(o,c){
749 o.className = !c ? "" :
751 new RegExp("(^|\\s*\\b[^-])"+c+"($|\\b(?=[^-]))", "g"), "");
756 return new RegExp("(^|\\s)" + a + "(\\s|$)").test(e);
761 * Swap in/out style options.
764 swap: function(e,o,f) {
766 e.style["old"+i] = e.style[i];
771 e.style[i] = e.style["old"+i];
775 if ( p == "height" || p == "width" ) {
776 var old = {}, oHeight, oWidth, d = ["Top","Bottom","Right","Left"];
779 old["padding" + d[i]] = 0;
780 old["border" + d[i] + "Width"] = 0;
783 jQuery.swap( e, old, function() {
784 if (jQuery.css(e,"display") != "none") {
785 oHeight = e.offsetHeight;
786 oWidth = e.offsetWidth;
788 jQuery.swap( e, { visibility: "hidden", position: "absolute", display: "" },
790 oHeight = e.clientHeight;
791 oWidth = e.clientWidth;
795 return p == "height" ? oHeight : oWidth;
802 else if (e.currentStyle)
803 r = e.currentStyle[p];
804 else if (document.defaultView && document.defaultView.getComputedStyle) {
805 p = p.replace(/([A-Z])/g,"-$1").toLowerCase();
806 var s = document.defaultView.getComputedStyle(e,"");
807 r = s ? s.getPropertyValue(p) : null;
815 for ( var i = 0; i < a.length; i++ ) {
816 if ( a[i].constructor == String ) {
818 if ( !a[i].indexOf("<tr") ) {
820 a[i] = "<table>" + a[i] + "</table>";
821 } else if ( !a[i].indexOf("<td") || !a[i].indexOf("<th") ) {
823 a[i] = "<table><tbody><tr>" + a[i] + "</tr></tbody></table>";
826 var div = document.createElement("div");
827 div.innerHTML = a[i];
830 div = div.firstChild.firstChild;
831 if ( td ) div = div.firstChild;
834 for ( var j = 0; j < div.childNodes.length; j++ )
835 r.push( div.childNodes[j] );
836 } else if ( a[i].jquery || a[i].length && !a[i].nodeType )
837 for ( var k = 0; k < a[i].length; k++ )
839 else if ( a[i] !== null )
840 r.push( a[i].nodeType ? a[i] : document.createTextNode(a[i].toString()) );
846 "": "m[2]== '*'||a.nodeName.toUpperCase()==m[2].toUpperCase()",
847 "#": "a.getAttribute('id')&&a.getAttribute('id')==m[2]",
855 last: "i==r.length-1",
860 "first-child": "jQuery.sibling(a,0).cur",
861 "last-child": "jQuery.sibling(a,0).last",
862 "only-child": "jQuery.sibling(a).length==1",
865 parent: "a.childNodes.length",
866 empty: "!a.childNodes.length",
869 contains: "(a.innerText||a.innerHTML).indexOf(m[3])>=0",
872 visible: "jQuery.css(a,'display')!='none'&&jQuery.css(a,'visibility')!='hidden'",
873 hidden: "jQuery.css(a,'display')=='none'||jQuery.css(a,'visibility')=='hidden'",
876 enabled: "!a.disabled",
877 disabled: "a.disabled",
880 ".": "jQuery.className.has(a,m[2])",
884 "^=": "!z.indexOf(m[4])",
885 "$=": "z.substr(z.length - m[4].length,m[4].length)==m[4]",
886 "*=": "z.indexOf(m[4])>=0",
889 "[": "jQuery.find(m[2],a).length"
893 "\\.\\.|/\\.\\.", "a.parentNode",
894 ">|/", "jQuery.sibling(a.firstChild)",
895 "\\+", "jQuery.sibling(a).next",
898 var s = jQuery.sibling(a);
900 for ( var i = s.n; i < s.length; i++ )
906 find: function( t, context ) {
907 // Make sure that the context is a DOM Element
908 if ( context && context.getElementsByTagName == undefined )
911 // Set the correct context (if none is provided)
912 context = context || jQuery.context || document;
914 if ( t.constructor != String ) return [t];
916 if ( !t.indexOf("//") ) {
917 context = context.documentElement;
918 t = t.substr(2,t.length);
919 } else if ( !t.indexOf("/") ) {
920 context = context.documentElement;
921 t = t.substr(1,t.length);
922 // FIX Assume the root element is right :(
923 if ( t.indexOf("/") >= 1 )
924 t = t.substr(t.indexOf("/"),t.length);
931 while ( t.length > 0 && last != t ) {
935 t = jQuery.trim(t).replace( /^\/\//i, "" );
937 var foundToken = false;
939 for ( var i = 0; i < jQuery.token.length; i += 2 ) {
940 var re = new RegExp("^(" + jQuery.token[i] + ")");
944 r = ret = jQuery.map( ret, jQuery.token[i+1] );
945 t = jQuery.trim( t.replace( re, "" ) );
951 if ( !t.indexOf(",") || !t.indexOf("|") ) {
952 if ( ret[0] == context ) ret.shift();
953 done = jQuery.merge( done, ret );
955 t = " " + t.substr(1,t.length);
957 var re2 = /^([#.]?)([a-z0-9\\*_-]*)/i;
961 // Ummm, should make this work in all XML docs
962 var oid = document.getElementById(m[2]);
963 r = ret = oid ? [oid] : [];
964 t = t.replace( re2, "" );
966 if ( !m[2] || m[1] == "." ) m[2] = "*";
968 for ( var i = 0; i < ret.length; i++ )
971 jQuery.getAll(ret[i]) :
972 ret[i].getElementsByTagName(m[2])
979 var val = jQuery.filter(t,r);
981 t = jQuery.trim(val.t);
985 if ( ret && ret[0] == context ) ret.shift();
986 done = jQuery.merge( done, ret );
991 getAll: function(o,r) {
993 var s = o.childNodes;
994 for ( var i = 0; i < s.length; i++ )
995 if ( s[i].nodeType == 1 ) {
997 jQuery.getAll( s[i], r );
1002 attr: function(o,a,v){
1003 if ( a && a.constructor == String ) {
1006 "class": "className",
1010 a = (fix[a] && fix[a].replace && fix[a] || a)
1011 .replace(/-([a-z])/ig,function(z,b){
1012 return b.toUpperCase();
1015 if ( v != undefined ) {
1017 if ( o.setAttribute && a != "disabled" )
1018 o.setAttribute(a,v);
1021 return o[a] || o.getAttribute && o.getAttribute(a) || "";
1026 filter: function(t,r,not) {
1027 // Figure out if we're doing regular, or inverse, filtering
1028 var g = not !== false ? jQuery.grep :
1029 function(a,f) {return jQuery.grep(a,f,true);};
1031 // Look for a string-like sequence
1032 var str = "([a-zA-Z*_-][a-zA-Z0-9_-]*)";
1034 // Look for something (optionally) enclosed with quotes
1035 var qstr = " *'?\"?([^'\"]*)'?\"? *";
1037 while ( t && /^[a-zA-Z\[*:.#]/.test(t) ) {
1039 // [@foo], [@foo=bar], etc.
1040 var re = new RegExp("^\\[ *@" + str + " *([!*$^=]*) *" + qstr + "\\]");
1043 // Re-organize the match
1044 if ( m ) m = ["", "@", m[2], m[1], m[3]];
1049 re = new RegExp("^(\\[)" + qstr + "\\]");
1054 // :contains(test), :not(.foo)
1056 re = new RegExp("^(:)" + str + "\\(" + qstr + "\\)");
1061 // :foo, .foo, #foo, foo
1063 re = new RegExp("^([:.#]*)" + str);
1067 // Remove what we just matched
1068 t = t.replace( re, "" );
1070 // :not() is a special case that can be optomized by
1071 // keeping it out of the expression list
1072 if ( m[1] == ":" && m[2] == "not" )
1073 r = jQuery.filter(m[3],r,false).r;
1075 // Otherwise, find the expression to execute
1077 var f = jQuery.expr[m[1]];
1078 if ( f.constructor != String )
1079 f = jQuery.expr[m[1]][m[2]];
1081 // Build a custom macro to enclose it
1082 eval("f = function(a,i){" +
1083 ( m[1] == "@" ? "z=jQuery.attr(a,m[3]);" : "" ) +
1084 "return " + f + "}");
1086 // Execute it against the current filter
1091 // Return an array of filtered elements (r)
1092 // and the modified expression string (t)
1093 return { r: r, t: t };
1097 * Remove the whitespace from the beginning and end of a string.
1102 * @param String str The string to trim.
1105 return t.replace(/^\s+|\s+$/g, "");
1109 * All ancestors of a given element.
1113 * @type Array<Element>
1114 * @param Element elem The element to find the ancestors of.
1116 parents: function(a){
1118 var c = a.parentNode;
1119 while ( c && c != document ) {
1127 * All elements on a specified axis.
1132 * @param Element elem The element to find all the siblings of (including itself).
1134 sibling: function(a,n) {
1136 var tmp = a.parentNode.childNodes;
1137 for ( var i = 0; i < tmp.length; i++ ) {
1138 if ( tmp[i].nodeType == 1 )
1139 type.push( tmp[i] );
1141 type.n = type.length - 1;
1143 type.last = type.n == type.length - 1;
1145 n == "even" && type.n % 2 == 0 ||
1146 n == "odd" && type.n % 2 ||
1148 type.next = type[type.n + 1];
1153 * Merge two arrays together, removing all duplicates.
1158 * @param Array a The first array to merge.
1159 * @param Array b The second array to merge.
1161 merge: function(a,b) {
1164 // Move b over to the new array (this helps to avoid
1165 // StaticNodeList instances)
1166 for ( var k = 0; k < b.length; k++ )
1169 // Now check for duplicates between a and b and only
1170 // add the unique items
1171 for ( var i = 0; i < a.length; i++ ) {
1174 // The collision-checking process
1175 for ( var j = 0; j < b.length; j++ )
1179 // If the item is unique, add it
1188 * Remove items that aren't matched in an array. The function passed
1189 * in to this method will be passed two arguments: 'a' (which is the
1190 * array item) and 'i' (which is the index of the item in the array).
1195 * @param Array array The Array to find items in.
1196 * @param Function fn The function to process each item against.
1197 * @param Boolean inv Invert the selection - select the opposite of the function.
1199 grep: function(a,f,s) {
1200 // If a string is passed in for the function, make a function
1201 // for it (a handy shortcut)
1202 if ( f.constructor == String )
1203 f = new Function("a","i","return " + f);
1207 // Go through the array, only saving the items
1208 // that pass the validator function
1209 for ( var i = 0; i < a.length; i++ )
1210 if ( !s && f(a[i],i) || s && !f(a[i],i) )
1217 * Translate all items in array to another array of items. The translation function
1218 * that is provided to this method is passed one argument: 'a' (the item to be
1219 * translated). If an array is returned, that array is mapped out and merged into
1220 * the full array. Additionally, returning 'null' or 'undefined' will delete the item
1221 * from the array. Both of these changes imply that the size of the array may not
1222 * be the same size upon completion, as it was when it started.
1227 * @param Array array The Array to translate.
1228 * @param Function fn The function to process each item against.
1230 map: function(a,f) {
1231 // If a string is passed in for the function, make a function
1232 // for it (a handy shortcut)
1233 if ( f.constructor == String )
1234 f = new Function("a","return " + f);
1238 // Go through the array, translating each of the items to their
1239 // new value (or values).
1240 for ( var i = 0; i < a.length; i++ ) {
1242 if ( t !== null && t != undefined ) {
1243 if ( t.constructor != Array ) t = [t];
1244 r = jQuery.merge( t, r );
1251 * A number of helper functions used for managing events.
1252 * Many of the ideas behind this code orignated from Dean Edwards' addEvent library.
1256 // Bind an event to an element
1257 // Original by Dean Edwards
1258 add: function(element, type, handler) {
1259 // For whatever reason, IE has trouble passing the window object
1260 // around, causing it to be cloned in the process
1261 if ( jQuery.browser.msie && element.setInterval != undefined )
1264 // Make sure that the function being executed has a unique ID
1265 if ( !handler.guid )
1266 handler.guid = this.guid++;
1268 // Init the element's event structure
1269 if (!element.events)
1270 element.events = {};
1272 // Get the current list of functions bound to this event
1273 var handlers = element.events[type];
1275 // If it hasn't been initialized yet
1277 // Init the event handler queue
1278 handlers = element.events[type] = {};
1280 // Remember an existing handler, if it's already there
1281 if (element["on" + type])
1282 handlers[0] = element["on" + type];
1285 // Add the function to the element's handler list
1286 handlers[handler.guid] = handler;
1288 // And bind the global event handler to the element
1289 element["on" + type] = this.handle;
1291 // Remember the function in a global list (for triggering)
1292 if (!this.global[type])
1293 this.global[type] = [];
1294 this.global[type].push( element );
1300 // Detach an event or set of events from an element
1301 remove: function(element, type, handler) {
1303 if (type && element.events[type])
1305 delete element.events[type][handler.guid];
1307 for ( var i in element.events[type] )
1308 delete element.events[type][i];
1310 for ( var j in element.events )
1311 this.remove( element, j );
1314 trigger: function(type,data,element) {
1315 // Touch up the incoming data
1318 // Handle a global trigger
1320 var g = this.global[type];
1322 for ( var i = 0; i < g.length; i++ )
1323 this.trigger( type, data, g[i] );
1325 // Handle triggering a single element
1326 } else if ( element["on" + type] ) {
1327 // Pass along a fake event
1328 data.unshift( this.fix({ type: type, target: element }) );
1330 // Trigger the event
1331 element["on" + type].apply( element, data );
1335 handle: function(event) {
1336 event = event || jQuery.event.fix( window.event );
1338 // If no correct event was found, fail
1339 if ( !event ) return;
1341 var returnValue = true;
1343 for ( var j in this.events[event.type] ) {
1344 if (this.events[event.type][j](event) === false) {
1345 event.preventDefault();
1346 event.stopPropagation();
1347 returnValue = false;
1354 fix: function(event) {
1356 event.preventDefault = function() {
1357 this.returnValue = false;
1360 event.stopPropagation = function() {
1361 this.cancelBubble = true;