mattsnider

// Modified from http://mattsnider.com/cross-browser-and-legacy-supported-requestframeanimation/
// LICENSE: MIT: http://mattsnider.com/projects/license/

(function(w) {
    "use strict";
    // most browsers have an implementation
    w.requestAnimationFrame = w.requestAnimationFrame ||
            w.mozRequestAnimationFrame || w.webkitRequestAnimationFrame ||
            w.msRequestAnimationFrame;
    w.cancelAnimationFrame = w.cancelAnimationFrame ||