拡張子:txtvbswsfjsphpjavahtmlutf8sjis
( function () {

	var lastTime = 0;
	var vendors = [ 'ms', 'moz', 'webkit', 'o' ];

	for ( var x = 0; x < vendors.length && !window.requestAnimationFrame; ++ x ) {

		window.requestAnimationFrame = window[ vendors[ x ] + 'RequestAnimationFrame' ];
		window.cancelAnimationFrame = window[ vendors[ x ] + 'CancelAnimationFrame' ] || window[ vendors[ x ] + 'CancelRequestAnimationFrame' ];

	}

	if ( window.requestAnimationFrame === undefined ) {

		window.requestAnimationFrame = function ( callback ) {

			var currTime = Date.now(), timeToCall = Math.max( 0, 16 - ( currTime - lastTime ) );
			var id = window.setTimeout( function() { callback( currTime + timeToCall ); }, timeToCall );
			lastTime = currTime + timeToCall;
			return id;

		};

	}

	window.cancelAnimationFrame = window.cancelAnimationFrame || function ( id ) { window.clearTimeout( id ) };

}() );