2 * A number of helper functions used for managing events.
3 * Many of the ideas behind this code orignated from
4 * Dean Edwards' addEvent library.
8 // Bind an event to an element
9 // Original by Dean Edwards
10 add: function(element, type, handler, data) {
11 // For whatever reason, IE has trouble passing the window object
12 // around, causing it to be cloned in the process
13 if ( jQuery.browser.msie && element.setInterval != undefined )
16 // Make sure that the function being executed has a unique ID
18 handler.guid = this.guid++;
20 // if data is passed, bind to handler
21 if( data != undefined ) {
22 // Create temporary function pointer to original handler
25 // Create unique handler function, wrapped around original handler
26 handler = function() {
27 // Pass arguments and context to original handler
28 return fn.apply(this, arguments);
31 // Store data in unique handler
34 // Set the guid of unique handler to the same of original handler, so it can be removed
35 handler.guid = fn.guid;
38 // Init the element's event structure
43 element.$handle = function() {
44 jQuery.event.handle.apply(element, arguments);
47 // Get the current list of functions bound to this event
48 var handlers = element.$events[type];
50 // Init the event handler queue
52 handlers = element.$events[type] = {};
54 // And bind the global event handler to the element
55 if (element.addEventListener)
56 element.addEventListener(type, element.$handle, false);
57 else if (element.attachEvent)
58 element.attachEvent("on" + type, element.$handle);
61 // Add the function to the element's handler list
62 handlers[handler.guid] = handler;
64 // Remember the function in a global list (for triggering)
65 if (!this.global[type])
66 this.global[type] = [];
67 // Only add the element to the global list once
68 if (jQuery.inArray(element, this.global[type]) == -1)
69 this.global[type].push( element );
75 // Detach an event or set of events from an element
76 remove: function(element, type, handler) {
77 var events = element.$events, ret, index;
80 // type is actually an event object here
81 if ( type && type.type ) {
82 handler = type.handler;
87 for ( type in events )
88 this.remove( element, type );
90 } else if ( events[type] ) {
91 // remove the given handler for the given type
93 delete events[type][handler.guid];
95 // remove all handlers for the given type
97 for ( handler in element.$events[type] )
98 delete events[type][handler];
100 // remove generic event handler if no more handlers exist
101 for ( ret in events[type] ) break;
103 if (element.removeEventListener)
104 element.removeEventListener(type, element.$handle, false);
105 else if (element.detachEvent)
106 element.detachEvent("on" + type, element.$handle);
110 // Remove element from the global event type cache
111 while ( this.global[type] && ( (index = jQuery.inArray(element, this.global[type])) >= 0 ) )
112 delete this.global[type][index];
116 // Remove the expando if it's no longer used
117 for ( ret in events ) break;
119 element.$handle = element.$events = null;
123 trigger: function(type, data, element) {
124 // Clone the incoming data, if any
125 data = jQuery.makeArray(data || []);
127 // Handle a global trigger
129 jQuery.each( this.global[type] || [], function(){
130 jQuery.event.trigger( type, data, this );
133 // Handle triggering a single element
135 var val, ret, fn = jQuery.isFunction( element[ type ] || null );
137 // Pass along a fake event
138 data.unshift( this.fix({ type: type, target: element }) );
141 if ( (val = this.handle.apply( element, data )) !== false )
142 this.triggered = true;
144 if ( fn && val !== false && !jQuery.nodeName(element, 'a') )
147 this.triggered = false;
151 handle: function(event) {
152 // returned undefined or false
155 // Handle the second event of a trigger and when
156 // an event is called after a page has unloaded
157 if ( typeof jQuery == "undefined" || jQuery.event.triggered )
160 // Empty object is for triggered events with no data
161 event = jQuery.event.fix( event || window.event || {} );
163 var c = this.$events && this.$events[event.type], args = [].slice.call( arguments, 1 );
164 args.unshift( event );
167 // Pass in a reference to the handler function itself
168 // So that we can later remove it
169 args[0].handler = c[j];
170 args[0].data = c[j].data;
172 if ( c[j].apply( this, args ) === false ) {
173 event.preventDefault();
174 event.stopPropagation();
179 // Clean up added properties in IE to prevent memory leak
180 if (jQuery.browser.msie)
181 event.target = event.preventDefault = event.stopPropagation =
182 event.handler = event.data = null;
187 fix: function(event) {
188 // store a copy of the original event object
189 // and clone to set read-only properties
190 var originalEvent = event;
191 event = jQuery.extend({}, originalEvent);
193 // add preventDefault and stopPropagation since
194 // they will not work on the clone
195 event.preventDefault = function() {
196 // if preventDefault exists run it on the original event
197 if (originalEvent.preventDefault)
198 return originalEvent.preventDefault();
199 // otherwise set the returnValue property of the original event to false (IE)
200 originalEvent.returnValue = false;
202 event.stopPropagation = function() {
203 // if stopPropagation exists run it on the original event
204 if (originalEvent.stopPropagation)
205 return originalEvent.stopPropagation();
206 // otherwise set the cancelBubble property of the original event to true (IE)
207 originalEvent.cancelBubble = true;
210 // Fix target property, if necessary
211 if ( !event.target && event.srcElement )
212 event.target = event.srcElement;
214 // check if target is a textnode (safari)
215 if (jQuery.browser.safari && event.target.nodeType == 3)
216 event.target = originalEvent.target.parentNode;
218 // Add relatedTarget, if necessary
219 if ( !event.relatedTarget && event.fromElement )
220 event.relatedTarget = event.fromElement == event.target ? event.toElement : event.fromElement;
222 // Calculate pageX/Y if missing and clientX/Y available
223 if ( event.pageX == null && event.clientX != null ) {
224 var e = document.documentElement || document.body;
225 event.pageX = event.clientX + e.scrollLeft;
226 event.pageY = event.clientY + e.scrollTop;
229 // Add which for key events
230 if ( !event.which && (event.charCode || event.keyCode) )
231 event.which = event.charCode || event.keyCode;
233 // Add metaKey to non-Mac browsers (use ctrl for PC's and Meta for Macs)
234 if ( !event.metaKey && event.ctrlKey )
235 event.metaKey = event.ctrlKey;
237 // Add which for click: 1 == left; 2 == middle; 3 == right
238 // Note: button is not normalized, so don't use it
239 if ( !event.which && event.button )
240 event.which = (event.button & 1 ? 1 : ( event.button & 2 ? 3 : ( event.button & 4 ? 2 : 0 ) ));
249 * Binds a handler to a particular event (like click) for each matched element.
250 * The event handler is passed an event object that you can use to prevent
251 * default behaviour. To stop both default action and event bubbling, your handler
252 * has to return false.
254 * In most cases, you can define your event handlers as anonymous functions
255 * (see first example). In cases where that is not possible, you can pass additional
256 * data as the second parameter (and the handler function as the third), see
259 * Calling bind with an event type of "unload" will automatically
260 * use the one method instead of bind to prevent memory leaks.
262 * @example $("p").bind("click", function(){
263 * alert( $(this).text() );
265 * @before <p>Hello</p>
266 * @result alert("Hello")
268 * @example function handler(event) {
269 * alert(event.data.foo);
271 * $("p").bind("click", {foo: "bar"}, handler)
272 * @result alert("bar")
273 * @desc Pass some additional data to the event handler.
275 * @example $("form").bind("submit", function() { return false; })
276 * @desc Cancel a default action and prevent it from bubbling by returning false
277 * from your function.
279 * @example $("form").bind("submit", function(event){
280 * event.preventDefault();
282 * @desc Cancel only the default action by using the preventDefault method.
285 * @example $("form").bind("submit", function(event){
286 * event.stopPropagation();
288 * @desc Stop only an event from bubbling by using the stopPropagation method.
292 * @param String type An event type
293 * @param Object data (optional) Additional data passed to the event handler as event.data
294 * @param Function fn A function to bind to the event on each of the set of matched elements
297 bind: function( type, data, fn ) {
298 return type == "unload" ? this.one(type, data, fn) : this.each(function(){
299 jQuery.event.add( this, type, fn || data, fn && data );
304 * Binds a handler to a particular event (like click) for each matched element.
305 * The handler is executed only once for each element. Otherwise, the same rules
306 * as described in bind() apply.
307 * The event handler is passed an event object that you can use to prevent
308 * default behaviour. To stop both default action and event bubbling, your handler
309 * has to return false.
311 * In most cases, you can define your event handlers as anonymous functions
312 * (see first example). In cases where that is not possible, you can pass additional
313 * data as the second paramter (and the handler function as the third), see
316 * @example $("p").one("click", function(){
317 * alert( $(this).text() );
319 * @before <p>Hello</p>
320 * @result alert("Hello")
324 * @param String type An event type
325 * @param Object data (optional) Additional data passed to the event handler as event.data
326 * @param Function fn A function to bind to the event on each of the set of matched elements
329 one: function( type, data, fn ) {
330 return this.each(function(){
331 jQuery.event.add( this, type, function(event) {
332 jQuery(this).unbind(event);
333 return (fn || data).apply( this, arguments);
339 * The opposite of bind, removes a bound event from each of the matched
342 * Without any arguments, all bound events are removed.
344 * If the type is provided, all bound events of that type are removed.
346 * If the function that was passed to bind is provided as the second argument,
347 * only that specific event handler is removed.
349 * @example $("p").unbind()
350 * @before <p onclick="alert('Hello');">Hello</p>
351 * @result [ <p>Hello</p> ]
353 * @example $("p").unbind( "click" )
354 * @before <p onclick="alert('Hello');">Hello</p>
355 * @result [ <p>Hello</p> ]
357 * @example $("p").unbind( "click", function() { alert("Hello"); } )
358 * @before <p onclick="alert('Hello');">Hello</p>
359 * @result [ <p>Hello</p> ]
363 * @param String type (optional) An event type
364 * @param Function fn (optional) A function to unbind from the event on each of the set of matched elements
367 unbind: function( type, fn ) {
368 return this.each(function(){
369 jQuery.event.remove( this, type, fn );
374 * Trigger a type of event on every matched element. This will also cause
375 * the default action of the browser with the same name (if one exists)
376 * to be executed. For example, passing 'submit' to the trigger()
377 * function will also cause the browser to submit the form. This
378 * default action can be prevented by returning false from one of
379 * the functions bound to the event.
381 * You can also trigger custom events registered with bind.
383 * @example $("p").trigger("click")
384 * @before <p click="alert('hello')">Hello</p>
385 * @result alert('hello')
387 * @example $("p").click(function(event, a, b) {
388 * // when a normal click fires, a and b are undefined
389 * // for a trigger like below a refers too "foo" and b refers to "bar"
390 * }).trigger("click", ["foo", "bar"]);
391 * @desc Example of how to pass arbitrary data to an event
393 * @example $("p").bind("myEvent",function(event,message1,message2) {
394 * alert(message1 + ' ' + message2);
396 * $("p").trigger("myEvent",["Hello","World"]);
397 * @result alert('Hello World') // One for each paragraph
401 * @param String type An event type to trigger.
402 * @param Array data (optional) Additional data to pass as arguments (after the event object) to the event handler
405 trigger: function( type, data ) {
406 return this.each(function(){
407 jQuery.event.trigger( type, data, this );
412 * Toggle between two function calls every other click.
413 * Whenever a matched element is clicked, the first specified function
414 * is fired, when clicked again, the second is fired. All subsequent
415 * clicks continue to rotate through the two functions.
417 * Use unbind("click") to remove.
419 * @example $("p").toggle(function(){
420 * $(this).addClass("selected");
422 * $(this).removeClass("selected");
427 * @param Function even The function to execute on every even click.
428 * @param Function odd The function to execute on every odd click.
432 // Save reference to arguments for access in closure
435 return this.click(function(e) {
436 // Figure out which function to execute
437 this.lastToggle = 0 == this.lastToggle ? 1 : 0;
439 // Make sure that clicks stop
442 // and execute the function
443 return a[this.lastToggle].apply( this, [e] ) || false;
448 * A method for simulating hovering (moving the mouse on, and off,
449 * an object). This is a custom method which provides an 'in' to a
452 * Whenever the mouse cursor is moved over a matched
453 * element, the first specified function is fired. Whenever the mouse
454 * moves off of the element, the second specified function fires.
455 * Additionally, checks are in place to see if the mouse is still within
456 * the specified element itself (for example, an image inside of a div),
457 * and if it is, it will continue to 'hover', and not move out
458 * (a common error in using a mouseout event handler).
460 * @example $("p").hover(function(){
461 * $(this).addClass("hover");
463 * $(this).removeClass("hover");
468 * @param Function over The function to fire whenever the mouse is moved over a matched element.
469 * @param Function out The function to fire whenever the mouse is moved off of a matched element.
472 hover: function(f,g) {
474 // A private function for handling mouse 'hovering'
475 function handleHover(e) {
476 // Check if mouse(over|out) are still within the same parent element
477 var p = e.relatedTarget;
479 // Traverse up the tree
480 while ( p && p != this ) try { p = p.parentNode } catch(e) { p = this; };
482 // If we actually just moused on to a sub-element, ignore it
483 if ( p == this ) return false;
485 // Execute the right function
486 return (e.type == "mouseover" ? f : g).apply(this, [e]);
489 // Bind the function to the two event listeners
490 return this.mouseover(handleHover).mouseout(handleHover);
494 * Bind a function to be executed whenever the DOM is ready to be
495 * traversed and manipulated. This is probably the most important
496 * function included in the event module, as it can greatly improve
497 * the response times of your web applications.
499 * In a nutshell, this is a solid replacement for using window.onload,
500 * and attaching a function to that. By using this method, your bound function
501 * will be called the instant the DOM is ready to be read and manipulated,
502 * which is when what 99.99% of all JavaScript code needs to run.
504 * There is one argument passed to the ready event handler: A reference to
505 * the jQuery function. You can name that argument whatever you like, and
506 * can therefore stick with the $ alias without risk of naming collisions.
508 * Please ensure you have no code in your <body> onload event handler,
509 * otherwise $(document).ready() may not fire.
511 * You can have as many $(document).ready events on your page as you like.
512 * The functions are then executed in the order they were added.
514 * @example $(document).ready(function(){ Your code here... });
516 * @example jQuery(function($) {
517 * // Your code using failsafe $ alias here...
519 * @desc Uses both the [[Core#.24.28_fn_.29|shortcut]] for $(document).ready() and the argument
520 * to write failsafe jQuery code using the $ alias, without relying on the
525 * @param Function fn The function to be executed when the DOM is ready.
527 * @see $.noConflict()
531 // If the DOM is already ready
532 if ( jQuery.isReady )
533 // Execute the function immediately
534 f.apply( document, [jQuery] );
536 // Otherwise, remember the function for later
538 // Add the function to the wait list
539 jQuery.readyList.push( function() { return f.apply(this, [jQuery]) } );
548 * All the code that makes DOM Ready work nicely.
553 // Handle when the DOM is ready
555 // Make sure that the DOM is not already loaded
556 if ( !jQuery.isReady ) {
557 // Remember that the DOM is ready
558 jQuery.isReady = true;
560 // If there are functions bound, to execute
561 if ( jQuery.readyList ) {
562 // Execute all of them
563 jQuery.each( jQuery.readyList, function(){
564 this.apply( document );
567 // Reset the list of functions
568 jQuery.readyList = null;
570 // Remove event listener to avoid memory leak
571 if ( jQuery.browser.mozilla || jQuery.browser.opera )
572 document.removeEventListener( "DOMContentLoaded", jQuery.ready, false );
574 // Remove script element used by IE hack
575 jQuery(window).load(function(){ jQuery("#__ie_init").remove(); });
583 * Bind a function to the scroll event of each matched element.
585 * @example $("p").scroll( function() { alert("Hello"); } );
586 * @before <p>Hello</p>
587 * @result <p onscroll="alert('Hello');">Hello</p>
591 * @param Function fn A function to bind to the scroll event on each of the matched elements.
596 * Bind a function to the submit event of each matched element.
598 * @example $("#myform").submit( function() {
599 * return $("input", this).val().length > 0;
601 * @before <form id="myform"><input /></form>
602 * @desc Prevents the form submission when the input has no value entered.
606 * @param Function fn A function to bind to the submit event on each of the matched elements.
611 * Trigger the submit event of each matched element. This causes all of the functions
612 * that have been bound to that submit event to be executed, and calls the browser's
613 * default submit action on the matching element(s). This default action can be prevented
614 * by returning false from one of the functions bound to the submit event.
616 * Note: This does not execute the submit method of the form element! If you need to
617 * submit the form via code, you have to use the DOM method, eg. $("form")[0].submit();
619 * @example $("form").submit();
620 * @desc Triggers all submit events registered to the matched form(s), and submits them.
628 * Bind a function to the focus event of each matched element.
630 * @example $("p").focus( function() { alert("Hello"); } );
631 * @before <p>Hello</p>
632 * @result <p onfocus="alert('Hello');">Hello</p>
636 * @param Function fn A function to bind to the focus event on each of the matched elements.
641 * Trigger the focus event of each matched element. This causes all of the functions
642 * that have been bound to thet focus event to be executed.
644 * Note: This does not execute the focus method of the underlying elements! If you need to
645 * focus an element via code, you have to use the DOM method, eg. $("#myinput")[0].focus();
647 * @example $("p").focus();
648 * @before <p onfocus="alert('Hello');">Hello</p>
649 * @result alert('Hello');
657 * Bind a function to the keydown event of each matched element.
659 * @example $("p").keydown( function() { alert("Hello"); } );
660 * @before <p>Hello</p>
661 * @result <p onkeydown="alert('Hello');">Hello</p>
665 * @param Function fn A function to bind to the keydown event on each of the matched elements.
670 * Bind a function to the dblclick event of each matched element.
672 * @example $("p").dblclick( function() { alert("Hello"); } );
673 * @before <p>Hello</p>
674 * @result <p ondblclick="alert('Hello');">Hello</p>
678 * @param Function fn A function to bind to the dblclick event on each of the matched elements.
683 * Bind a function to the keypress event of each matched element.
685 * @example $("p").keypress( function() { alert("Hello"); } );
686 * @before <p>Hello</p>
687 * @result <p onkeypress="alert('Hello');">Hello</p>
691 * @param Function fn A function to bind to the keypress event on each of the matched elements.
696 * Bind a function to the error event of each matched element.
698 * @example $("p").error( function() { alert("Hello"); } );
699 * @before <p>Hello</p>
700 * @result <p onerror="alert('Hello');">Hello</p>
704 * @param Function fn A function to bind to the error event on each of the matched elements.
709 * Bind a function to the blur event of each matched element.
711 * @example $("p").blur( function() { alert("Hello"); } );
712 * @before <p>Hello</p>
713 * @result <p onblur="alert('Hello');">Hello</p>
717 * @param Function fn A function to bind to the blur event on each of the matched elements.
722 * Trigger the blur event of each matched element. This causes all of the functions
723 * that have been bound to that blur event to be executed, and calls the browser's
724 * default blur action on the matching element(s). This default action can be prevented
725 * by returning false from one of the functions bound to the blur event.
727 * Note: This does not execute the blur method of the underlying elements! If you need to
728 * blur an element via code, you have to use the DOM method, eg. $("#myinput")[0].blur();
730 * @example $("p").blur();
731 * @before <p onblur="alert('Hello');">Hello</p>
732 * @result alert('Hello');
740 * Bind a function to the load event of each matched element.
742 * @example $("p").load( function() { alert("Hello"); } );
743 * @before <p>Hello</p>
744 * @result <p onload="alert('Hello');">Hello</p>
748 * @param Function fn A function to bind to the load event on each of the matched elements.
753 * Bind a function to the select event of each matched element.
755 * @example $("p").select( function() { alert("Hello"); } );
756 * @before <p>Hello</p>
757 * @result <p onselect="alert('Hello');">Hello</p>
761 * @param Function fn A function to bind to the select event on each of the matched elements.
766 * Trigger the select event of each matched element. This causes all of the functions
767 * that have been bound to that select event to be executed, and calls the browser's
768 * default select action on the matching element(s). This default action can be prevented
769 * by returning false from one of the functions bound to the select event.
771 * @example $("p").select();
772 * @before <p onselect="alert('Hello');">Hello</p>
773 * @result alert('Hello');
781 * Bind a function to the mouseup event of each matched element.
783 * @example $("p").mouseup( function() { alert("Hello"); } );
784 * @before <p>Hello</p>
785 * @result <p onmouseup="alert('Hello');">Hello</p>
789 * @param Function fn A function to bind to the mouseup event on each of the matched elements.
794 * Bind a function to the unload event of each matched element.
796 * @example $("p").unload( function() { alert("Hello"); } );
797 * @before <p>Hello</p>
798 * @result <p onunload="alert('Hello');">Hello</p>
802 * @param Function fn A function to bind to the unload event on each of the matched elements.
807 * Bind a function to the change event of each matched element.
809 * @example $("p").change( function() { alert("Hello"); } );
810 * @before <p>Hello</p>
811 * @result <p onchange="alert('Hello');">Hello</p>
815 * @param Function fn A function to bind to the change event on each of the matched elements.
820 * Bind a function to the mouseout event of each matched element.
822 * @example $("p").mouseout( function() { alert("Hello"); } );
823 * @before <p>Hello</p>
824 * @result <p onmouseout="alert('Hello');">Hello</p>
828 * @param Function fn A function to bind to the mouseout event on each of the matched elements.
833 * Bind a function to the keyup event of each matched element.
835 * @example $("p").keyup( function() { alert("Hello"); } );
836 * @before <p>Hello</p>
837 * @result <p onkeyup="alert('Hello');">Hello</p>
841 * @param Function fn A function to bind to the keyup event on each of the matched elements.
846 * Bind a function to the click event of each matched element.
848 * @example $("p").click( function() { alert("Hello"); } );
849 * @before <p>Hello</p>
850 * @result <p onclick="alert('Hello');">Hello</p>
854 * @param Function fn A function to bind to the click event on each of the matched elements.
859 * Trigger the click event of each matched element. This causes all of the functions
860 * that have been bound to thet click event to be executed.
862 * @example $("p").click();
863 * @before <p onclick="alert('Hello');">Hello</p>
864 * @result alert('Hello');
872 * Bind a function to the resize event of each matched element.
874 * @example $("p").resize( function() { alert("Hello"); } );
875 * @before <p>Hello</p>
876 * @result <p onresize="alert('Hello');">Hello</p>
880 * @param Function fn A function to bind to the resize event on each of the matched elements.
885 * Bind a function to the mousemove event of each matched element.
887 * @example $("p").mousemove( function() { alert("Hello"); } );
888 * @before <p>Hello</p>
889 * @result <p onmousemove="alert('Hello');">Hello</p>
893 * @param Function fn A function to bind to the mousemove event on each of the matched elements.
898 * Bind a function to the mousedown event of each matched element.
900 * @example $("p").mousedown( function() { alert("Hello"); } );
901 * @before <p>Hello</p>
902 * @result <p onmousedown="alert('Hello');">Hello</p>
906 * @param Function fn A function to bind to the mousedown event on each of the matched elements.
911 * Bind a function to the mouseover event of each matched element.
913 * @example $("p").mouseover( function() { alert("Hello"); } );
914 * @before <p>Hello</p>
915 * @result <p onmouseover="alert('Hello');">Hello</p>
919 * @param Function fn A function to bind to the mousedown event on each of the matched elements.
922 jQuery.each( ("blur,focus,load,resize,scroll,unload,click,dblclick," +
923 "mousedown,mouseup,mousemove,mouseover,mouseout,change,select," +
924 "submit,keydown,keypress,keyup,error").split(","), function(i,o){
926 // Handle event binding
927 jQuery.fn[o] = function(f){
928 return f ? this.bind(o, f) : this.trigger(o);
933 // If Mozilla is used
934 if ( jQuery.browser.mozilla || jQuery.browser.opera )
935 // Use the handy event callback
936 document.addEventListener( "DOMContentLoaded", jQuery.ready, false );
938 // If IE is used, use the excellent hack by Matthias Miller
939 // http://www.outofhanwell.com/blog/index.php?title=the_window_onload_problem_revisited
940 else if ( jQuery.browser.msie ) {
942 // Only works if you document.write() it
943 document.write("<scr" + "ipt id=__ie_init defer=true " +
944 "src=//:><\/script>");
946 // Use the defer script hack
947 var script = document.getElementById("__ie_init");
949 // script does not exist if jQuery is loaded dynamically
951 script.onreadystatechange = function() {
952 if ( this.readyState != "complete" ) return;
960 } else if ( jQuery.browser.safari )
961 // Continually check to see if the document.readyState is valid
962 jQuery.safariTimer = setInterval(function(){
963 // loaded and complete are both valid states
964 if ( document.readyState == "loaded" ||
965 document.readyState == "complete" ) {
967 // If either one are found, remove the timer
968 clearInterval( jQuery.safariTimer );
969 jQuery.safariTimer = null;
971 // and execute any waiting functions
976 // A fallback to window.onload, that will always work
977 jQuery.event.add( window, "load", jQuery.ready );
981 // Clean up after IE to avoid memory leaks
982 if (jQuery.browser.msie)
983 jQuery(window).one("unload", function() {
984 var global = jQuery.event.global;
985 for ( var type in global ) {
986 var els = global[type], i = els.length;
987 if ( i && type != 'unload' )
989 jQuery.event.remove(els[i-1], type);