codice:
mc.addEventListener(MouseEvent.MOUSE_OVER,ingrandisci)
mc.addEventListener(MouseEvent.MOUSE_OUT,riduci)
function ingrandisci(evt:MouseEvent):void{
    mc.scaleX=1.5
    mc.scaleY=1.5
}
function riduci(evt:MouseEvent):void{
    mc.scaleX=1
    mc.scaleY=1
}
mc.btn.addEventListener(MouseEvent.CLICK, onClick)
function onClick(evt:MouseEvent):void{
    trace("ho fatto click")
}