dbushell

// http://jasonwyatt.tumblr.com/post/10481498815/how-to-correctly-debounce-a-javascript-function
function debounce(fn, debounceDuration)
{
    debounceDuration = debounceDuration || 100;

    return function(){
        if(!fn.debouncing){
            var args = Array.prototype.slice.apply(arguments);
            fn.lastReturnVal = fn.apply(window, args);
            fn.debouncing = true;

paulirish

// http://paulirish.com/2011/requestanimationframe-for-smart-animating/
// http://my.opera.com/emoller/blog/2011/12/20/requestanimationframe-for-smart-er-animating

// requestAnimationFrame polyfill by Erik Möller. fixes from Paul Irish and Tino Zijdel

// MIT license

(function() {
    var lastTime = 0;
    var vendors = ['ms', 'moz', 'webkit', 'o'];