GarbageCollection - is this safe?

programming flash
1

Hi!

I was just wondering if anyone could comfirm of this is OK with regards to garbage collection. As you can see, the timer is local (and has limited repeatCount) and the listener is anonymous and the listener is weak.

protected function _flashErrorField():void
{
	var t:Timer = new Timer(250, 4);
	t.addEventListener(TimerEvent.TIMER, function():void{_errorField.visible = !_errorField.visible;}, false, 0, true);
	t.start();
}