/*! Copyright (c) 2009 Brandon Aaron (http://brandonaaron.net)
 * Dual licensed under the MIT (http://www.opensource.org/licenses/mit-license.php)
 * and GPL (http://www.opensource.org/licenses/gpl-license.php) licenses.
 * 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.
 *
 * Version: 3.0.2
 * 
 * Requires: 1.2.2+
 */
(function (b) {
    function d(a) {
        var f = [].slice.call(arguments, 1)
            , e = 0;
        a = b.event.fix(a || window.event);
        a.type = "mousewheel";
        if (a.wheelDelta) { e = a.wheelDelta / 120;
        }
        if (a.detail) { e = -a.detail / 3;
        }
        f.unshift(a, e);
        return b.event.handle.apply(this, f)
    }
    var c = ["DOMMouseScroll", "mousewheel"];
    b.event.special.mousewheel = {
        setup: function () {
            if (this.addEventListener) {
                for (var a = c.length; a;) { this.addEventListener(c[--a], d, false);
                } } else { this.onmousewheel = d
                }
        }
        , teardown: function () {
            if (this.removeEventListener) {
                for (var a = c.length; a;) { this.removeEventListener(c[--a], d, false);
                } } else { this.onmousewheel = null
                }
        }
    };
    b.fn.extend(
        {
            mousewheel: function (a) {
                return a ? this.bind("mousewheel", a) : this.trigger("mousewheel")
            }
            , unmousewheel: function (a) {
                return this.unbind("mousewheel", a)
            }
        }
    )
})(jQuery);