loadMovie("esterno.swf",1)
_root.onEnterFrame = function(){
if(_level1.getBytesLoaded()>=_level1.getBytesTotal () && _level1.getBytesTotal()>1024){
_level1.play()
delete _root.onEnterFrame
}
}

Al tastino "off" associ

_level1.stop()

oppure _level1.gotoAndStop(1)

al tastino "on" associ

_level1.play()