/*
 * ! 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);