/**
 * SWFMacMouseWheel v2.0: Mac Mouse Wheel functionality in flash - http://blog.pixelbreaker.com/
 *
 * SWFMacMouseWheel is (c) 2007 Gabriel Bucknall and is released under the MIT License:
 * http://www.opensource.org/licenses/mit-license.php
 *
 * Dependencies: 
 * SWFObject v2.0 rc1 <http://code.google.com/p/swfobject/>
 * Copyright (c) 2007 Geoff Stearns, Michael Williams, and Bobby van der Sluis
 * This software is released under the MIT License <http://www.opensource.org/licenses/mit-license.php>
 */
var swfmacmousewheel = function()
{
	if( !swfobject ) return null;
	

	var u = navigator.userAgent.toLowerCase();
	var p = navigator.platform.toLowerCase();
	var mac = p ? /mac/.test(p) : /mac/.test(u);

	if( mac )
	{
		var regObjArr = [];

		var deltaFilter = function(event)
		{
			var delta = 0;
			if (event.wheelDelta) {
				delta = event.wheelDelta/120;
				if (window.opera) delta = -delta;
			} else if (event.detail) {
				delta = -event.detail;
			}
			if (event.preventDefault) event.preventDefault();
			return delta;
		}

		var deltaDispatcher = function(event)
		{
			var delta = deltaFilter(event);
			var obj;
			for(var i=0; i<regObjArr.length; i++ )
			{
				obj = swfobject.getObjectById(regObjArr[i]);
				if( typeof( obj.externalMouseEvent ) == 'function' ) obj.externalMouseEvent( delta );
			}
		}

	if (window.addEventListener) window.addEventListener('DOMMouseScroll', deltaDispatcher, false);
	window.onmousewheel = document.onmousewheel = deltaDispatcher;
	}

	return {
		/*
			 Public API
		 */
registerObject: function(objectIdStr)
								{

									var u = navigator.userAgent.toLowerCase();
									var p = navigator.platform.toLowerCase();
									var mac = p ? /mac/.test(p) : /mac/.test(u);

									if( mac )
									{
										regObjArr[regObjArr.length] = objectIdStr;
									}
								}
	};
}();