Pass a param within and addeventlistener

1

hello,
i’m stuck in the same thing over and over again, I’ve found some wobly ways around it but there must be a proper way, please help!
I have a property for a movieclip
button.numero
and want to pass it when clicked
button.addEventListener(MouseEvent.CLICK, display )
private function display(evt:MouseEvent){ …

... 
		button.numero = i;
		button.addEventListener(MouseEvent.CLICK, display )
		addChild(button);
		
		}

	
}

private function display(evt:MouseEvent){
		 trace(evt.target.numero);
...