import flash.events.MouseEvent;

var select:String;

for(var i:int = 0; i < 9; i++){
	this["btn" + i].addEventListener(MouseEvent.ROLL_OVER, onOver);
	this["btn" + i].addEventListener(MouseEvent.ROLL_OUT, onOut);
	this["btn" + i].addEventListener(MouseEvent.CLICK, onClick);
}

function onOver(e:MouseEvent):void{
	var indice:String = ((e.currentTarget).name).slice(3,4);
	if (select != indice){
		over.x = this["btn" + indice].x - 100;
		over.y = this["btn" + indice].y - 100;
		over.alpha = 1;
	}
}
function onOut(e:MouseEvent):void{
	over.alpha = 0;
}
function onClick(e:MouseEvent):void{
    var indice:String = ((e.currentTarget).name).slice(3,4);
	clicked.x = this["btn" + indice].x - 100;
	clicked.y = this["btn" + indice].y - 100;
	over.alpha = 0;
	clicked.alpha = 1;
	select = indice;
}