[bicubic_bublic]

это AS3 - не пишите во фреймах...

	public class Star extends Sprite {
 
		private var timer:Timer;
 
		private var minTime:Number = 3000;
		private var maxTime:Number = 20000;
 
		public function Star () {
			timer = new Timer(Math.round(Math.random() * (maxTime - minTime) + minTime), 1);
			timer.addEventListener(TimerEvent.TIMER_COMPLETE, onTimerComplete);
			timer.start();
		}
 
		public function onTimerComplete(e:Event = null) {
			visible = !visible;
			timer.delay = Math.round(Math.random() * (maxTime - minTime) + minTime);
			timer.reset();
			timer.start();
		}
 
    }