// Array Remove - By John Resig (MIT Licensed)
Array.prototype.remove = function(from, to) {
  var rest = this.slice((to || from) + 1 || this.length);
  this.length = from < 0 ? this.length + from : from;
  return this.push.apply(this, rest);
};

Array.prototype.unique = function () {
	var r = new Array();
	o:for(var i = 0, n = this.length; i < n; i++) {
		for(var x = 0, y = r.length; x < y; x++) {
			if(r[x]==this[i]) {
				continue o;
			}
		}
		r[r.length] = this[i];
	}
	return r;
}