codice:
var listener:Object = new Object();
listener.click = function(evt:Object):Void
{
	var name:String = evt.target._name;
	var chk:Boolean = evt.target.selected;
	switch(name)
	{
		case "check1":
			check2.enabled = !chk;
			// azioni
			break;
		case "check2":
			check1.enabled = !chk;
			// azioni
			break;
	}
};
check1.addEventListener("click", listener);
check2.addEventListener("click", listener);