UnderscoreJS lightweight method: shuffle

shuffle.js

var shuffle = (function(){
	var random = function(min, max) {
		return min + Math.floor(Math.random() * (max - min + 1));
	};

	return function(set) {
		var length = set.length;
		var shuffled = Array(length);
		for (var index = 0, rand; index < length; index++) {
			rand = random(0, index);
			if (rand !== index) shuffled[index] = shuffled[rand];
			shuffled[rand] = set[index];
		}
		return shuffled;
	};
})();