Javascript Array Shuffle

shuffle.js

Array.prototype.shuffle = function() {
	var i = this.length, j, temp;
	if ( i === 0 ) return this;
		while ( --i ) {
			j = Math.floor( Math.random() * ( i + 1 ) );
			temp = this[i];
			this[i] = this[j];
			this[j] = temp;
		}
	return this;
};