Move mc in actionscript

im loading in a xml doc and it loop in the xml doc depeneding on how many node are in it. and attaches the nodes to a mc. the mc has three text fields in it. im trying to move that mc called t over 50px on _y.



			if (id[x] == "New York"){
				t._x = 20;
				t._y = 20;
			}
			else if (id[x] == "LA"){
				t._x = 20;
				t._y = 56;
			}
			else if (id[x] == "Chicago"){
				t._x = 20;
				t._y = 110;
			}

as of right now they load on top of each other. does anyone know how i would go about doing that? thanks in advance.