(function(C){var B=["DOMMouseScroll","mousewheel"];C.event.special.mousewheel={setup:function(){if(this.addEventListener){for(var D=B.length;D;){this.addEventListener(B[--D],A,false)}}else{this.onmousewheel=A}},teardown:function(){if(this.removeEventListener){for(var D=B.length;D;){this.removeEventListener(B[--D],A,false)}}else{this.onmousewheel=null}}};C.fn.extend({mousewheel:function(D){return D?this.bind("mousewheel",D):this.trigger("mousewheel")},unmousewheel:function(D){return this.unbind("mousewheel",D)}});function A(E){var G=[].slice.call(arguments,1),D=0,F=true;E=C.event.fix(E||window.event);E.type="mousewheel";if(E.wheelDelta){D=E.wheelDelta/120}if(E.detail){D=-E.detail/3}G.unshift(E,D);return C.event.handle.apply(this,G)}})(jQuery);