(function(A){A.fn.extend({mousewheel:function(B){if(!B.guid){B.guid=A.event.guid++}if(!A.event._mwCache){A.event._mwCache=[]}return this.each(function(){if(this._mwHandlers){return this._mwHandlers.push(B)}else{this._mwHandlers=[]}this._mwHandlers.push(B);var C=this;this._mwHandler=function(F){F=A.event.fix(F||window.event);A.extend(F,this._mwCursorPos||{});var G=0,E=true;if(F.wheelDelta){G=F.wheelDelta/120}if(F.detail){G=-F.detail/3}if(window.opera){G=-F.wheelDelta}for(var D=0;D<C._mwHandlers.length;D++){if(C._mwHandlers[D]){if(C._mwHandlers[D].call(C,F,G)===false){E=false;F.preventDefault();F.stopPropagation()}}}return E};if(A.browser.mozilla&&!this._mwFixCursorPos){this._mwFixCursorPos=function(D){this._mwCursorPos={pageX:D.pageX,pageY:D.pageY,clientX:D.clientX,clientY:D.clientY}};A(this).bind("mousemove",this._mwFixCursorPos)}if(this.addEventListener){if(A.browser.mozilla){this.addEventListener("DOMMouseScroll",this._mwHandler,false)}else{this.addEventListener("mousewheel",this._mwHandler,false)}}else{this.onmousewheel=this._mwHandler}A.event._mwCache.push(A(this))})},unmousewheel:function(B){return this.each(function(){if(B&&this._mwHandlers){for(var C=0;C<this._mwHandlers.length;C++){if(this._mwHandlers[C]&&this._mwHandlers[C].guid==B.guid){delete this._mwHandlers[C]}}}else{if(A.browser.mozilla&&!this._mwFixCursorPos){A(this).unbind("mousemove",this._mwFixCursorPos)}if(this.addEventListener){if(A.browser.mozilla){this.removeEventListener("DOMMouseScroll",this._mwHandler,false)}else{this.removeEventListener("mousewheel",this._mwHandler,false)}}else{this.onmousewheel=null}this._mwHandlers=this._mwHandler=this._mwFixCursorPos=this._mwCursorPos=null}})}});A(window).one("unload",function(){var C=A.event._mwCache||[];for(var B=0;B<C.length;B++){C[B].unmousewheel()}})})(jQuery);