/*! Copyright (c) 2010 Brandon Aaron (http://brandonaaron.net)
* Licensed under the MIT License (LICENSE.txt).
*
* Thanks to: http://adomas.org/javascript-mouse-wheel/ for some pointers.
* Thanks to: Mathias Bank(http://www.mathias-bank.de) for a scope bug fix.
* Thanks to: Seamus Leahy for adding deltaX and deltaY
*
* Version: 3.0.4
*
* Requires: 1.2.2+
*/

(function(d){
    function g(a){
        var b=a||window.event,i=[].slice.call(arguments,1),c=0,h=0,e=0;
        a=d.event.fix(b);
        a.type="mousewheel";
        if(a.wheelDelta)c=a.wheelDelta/120;
        if(a.detail)c=-a.detail/3;
        e=c;
        if(b.axis!==undefined&&b.axis===b.HORIZONTAL_AXIS){
            e=0;
            h=-1*c
            }
            if(b.wheelDeltaY!==undefined)e=b.wheelDeltaY/120;
        if(b.wheelDeltaX!==undefined)h=-1*b.wheelDeltaX/120;
        i.unshift(a,c,h,e);
        return d.event.handle.apply(this,i)
        }
        var f=["DOMMouseScroll","mousewheel"];
    d.event.special.mousewheel={
        setup:function(){
            if(this.addEventListener)for(var a=
                f.length;a;)this.addEventListener(f[--a],g,false);else this.onmousewheel=g
                },
        teardown:function(){
            if(this.removeEventListener)for(var a=f.length;a;)this.removeEventListener(f[--a],g,false);else this.onmousewheel=null
                }
            };

d.fn.extend({
    mousewheel:function(a){
        return a?this.bind("mousewheel",a):this.trigger("mousewheel")
        },
    unmousewheel:function(a){
        return this.unbind("mousewheel",a)
        }
    })
})(jQuery);