[dimarik]

private function addSubBtns(index:uint, x:Number, y:Number):void {
	var c:Class = getDefinitionByName("SubBtn" + index) as Class;
 
	if (!c) {
		throw new IllegalOperationError('No class');
		return;
	}
 
	var button:DisplayObject = new c() as DisplayObject;
	button.x = x;
	button.y = y;
	this.subBtn[index] = button;
	super.addChild(button);
}

А Galary это по кавовски? =)