/*! 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 ($) { var types = ["DOMMouseScroll", "mousewheel"]; $.event.special.mousewheel = { setup: function () { if (this.addEventListener) for (var i = types.length; i; ) this.addEventListener(types[--i], handler, false); else this.onmousewheel = handler }, teardown: function () { if (this.removeEventListener) for (var i = types.length; i; ) this.removeEventListener(types[--i], handler, false); else this.onmousewheel = null } }; $.fn.extend({ mousewheel: function (fn) { return fn ? this.bind("mousewheel", fn) : this.trigger("mousewheel") }, unmousewheel: function (fn) { return this.unbind("mousewheel", fn) } }); function handler(event) { var orgEvent = event || window.event, args = [].slice.call(arguments, 1), delta = 0, returnValue = true, deltaX = 0, deltaY = 0; event = $.event.fix(orgEvent); event.type = "mousewheel"; if (event.wheelDelta) delta = event.wheelDelta / 120; if (event.detail) delta = -event.detail / 3; deltaY = delta; if (orgEvent.axis !== undefined && orgEvent.axis === orgEvent.HORIZONTAL_AXIS) { deltaY = 0; deltaX = -1 * delta } if (orgEvent.wheelDeltaY !== undefined) deltaY = orgEvent.wheelDeltaY / 120; if (orgEvent.wheelDeltaX !== undefined) deltaX = -1 * orgEvent.wheelDeltaX / 120; args.unshift(event, delta, deltaX, deltaY); return $.event.handle.apply(this, args) } })(jQuery);