Array.prototype.unique = function(){
for(var a in this)
for(var b in this)
if(this[a] === this[b] && a !== b)
delete this[b];
}


Attempted duplication of the PHP function. This will remove any of the objects in an array that are identical, but it will leave the original. This might mess up the numbers, but I'm not sure. Never really tried with it.