(function($)
{$.event.special.mousewheel={setup:function()
{var handler=$.event.special.mousewheel.handler;if($.browser.mozilla)
$(this).bind('mousemove.mousewheel',function(event)
{$.data(this,'mwcursorposdata',{pageX:event.pageX,pageY:event.pageY,clientX:event.clientX,clientY:event.clientY});});if(this.addEventListener)
this.addEventListener(($.browser.mozilla?'DOMMouseScroll':'mousewheel'),handler,false);else
this.onmousewheel=handler;},teardown:function()
{var handler=$.event.special.mousewheel.handler;$(this).unbind('mousemove.mousewheel');if(this.removeEventListener)
this.removeEventListener(($.browser.mozilla?'DOMMouseScroll':'mousewheel'),handler,false);else
this.onmousewheel=function(){};$.removeData(this,'mwcursorposdata');},handler:function(event)
{var args=Array.prototype.slice.call(arguments,1);event=$.event.fix(event||window.event);$.extend(event,$.data(this,'mwcursorposdata')||{});var delta=0,returnValue=true;if(event.wheelDelta)delta=event.wheelDelta/120;if(event.detail)delta=-event.detail/3;event.data=event.data||{};event.type="mousewheel";args.unshift(delta);args.unshift(event);return $.event.handle.apply(this,args);}};$.fn.extend({mousewheel:function(fn)
{return fn?this.bind("mousewheel",fn):this.trigger("mousewheel");},unmousewheel:function(fn)
{return this.unbind("mousewheel",fn);}});})(jQuery);