Hi, I created a code to get the instance of the button when clicked, but it's not working, any idea how to fix?

Code:
var slotsArray:Array = new Array(slot_01, slot_02);

for (var i=0; i<slotsArray.length; i++)
{
	currentSlot = eval(slotsArray[i]);
	
	currentSlot.onRelease = function():Void
	{
		trace ("Botão " + i + " clicado." );
	}
}