//+ Jonas Raoni Soares Silva
//@ http://jsfromhell.com/array/shuffle [rev. #1]
shuffle = function(v)
{
	for(var j, x, i = v.length; i; j = parseInt(Math.random() * i), x = v[--i], v[i] = v[j], v[j] = x);
	return v;
};