Polyfill all browsers requestAnimationFrame

requestAnimationFrame.js

window.requestAnimationFrame = function(){
    return (
        window.requestAnimationFrame       ||
        window.webkitRequestAnimationFrame ||
        window.mozRequestAnimationFrame    ||
        window.oRequestAnimationFrame      ||
        window.msRequestAnimationFrame     ||
        function(/* function */ callback){
            window.setTimeout(callback, (fadeInDuration + fadeOutDuration));
        }
    );
}();