(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);