/*
* ===========================================================================
* 
* Wolf3D Browser Version GPL Source Code
* Copyright (C) 2012 id Software LLC, a ZeniMax Media company. 
* 
* This file is part of the Wolf3D Browser Version GPL Source Code ("Wolf3D Browser Source Code").  
* 
* Wolf3D Browser Source Code is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
* 
* Wolf3D Browser Source Code is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
* GNU General Public License for more details.
* 
* You should have received a copy of the GNU General Public License version 2
* along with Wolf3D Browser Source Code.  If not, see <http://www.gnu.org/licenses/>.
* 
* If you have questions concerning this license, you may contact in writing id Software LLC, c/o ZeniMax Media Inc., Suite 120, Rockville, Maryland 20850 USA.
* 
* ===========================================================================
*/


/* requestAnimationFrame polyfill */
(function() {

	window.requestAnimationFrame = (function() {
		return window.requestAnimationFrame
			|| window.webkitRequestAnimationFrame
			|| window.mozRequestAnimationFrame
			|| window.oRequestAnimationFrame
			|| window.msRequestAnimationFrame
			|| function(callback, element) {
				return window.setTimeout(
					function() {
						callback(Date.now());
					}, 1000 / 60
				);
			};
	})();

	window.cancelRequestAnimationFrame = (function() {
		return window.cancelRequestAnimationFrame
			|| window.webkitCancelRequestAnimationFrame
			|| window.mozCancelRequestAnimationFrame
			|| window.oCancelRequestAnimationFrame
			|| window.msCancelRequestAnimationFrame
			|| window.clearTimeout;
	})();

})();