POLYFILL for requestAnimationFrame

gistfile1.txt

//=========================================================================
// POLYFILL for requestAnimationFrame
//=========================================================================

if (!window.requestAnimationFrame) { // http://paulirish.com/2011/requestanimationframe-for-smart-animating/
  window.requestAnimationFrame = window.webkitRequestAnimationFrame || 
                                 window.mozRequestAnimationFrame    || 
                                 window.oRequestAnimationFrame      || 
                                 window.msRequestAnimationFrame     || 
                                 function(callback, element) {
                                   window.setTimeout(callback, 1000 / 60);
                                 }
}