Array.Shuffle.js

// Array shuffle for MooTools

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

});