Timer not working

programming flash
1

there is no error in the Error window
what is wrong with this code:


function ShortTimer() {
    // creates a new five-second Timer
    var minuteTimer:Timer = new Timer(1000, 5);
    // designates listeners for the interval and completion events
    minuteTimer.addEventListener(TimerEvent.TIMER, onTick);
    minuteTimer.addEventListener(TimerEvent.TIMER_COMPLETE,onTimerComplete);
    // starts the timer ticking
    minuteTimer.start();
}
function onTick(event:TimerEvent):void {
    // displays the tick count so far
    // The target of this event is the Timer instance itself.
    trace("tick " + event.target.currentCount);
}
function onTimerComplete(event:TimerEvent):void {
    trace("Time's Up!");
}