Mouse Over and Blinking effect

programming flash
1

How can I get each individual movie clip to blink every x seconds when the mouse is over it?


var buttonArray:Array = [ mystery, simple, adventure, peace];
var myTimer:Timer = new Timer(1000);

myTimer.addEventListener(TimerEvent.TIMER, glowEffect)


stage.addEventListener(Event.ENTER_FRAME, fitscreen)


function fitscreen(e:Event):void{

for each (var c in buttonArray)
{
    mystery.addEventListener(MouseEvent.ROLL_OVER, fadeIn);
    mystery.addEventListener(MouseEvent.ROLL_OUT, fadeOut);
    mystery.alpha = 1;
}
}

function glowEffect(e:TimerEvent){
           myTimer.start();
    if (this.alpha == 0){
        TweenMax.to(this, 1, {alpha:1});
    }
    
    if (this.alpha == 1){
        TweenMax.to(this, 1, {alpha:0});
    }
}

function fadeIn(e:MouseEvent):void
{
  myTimer.start();  
}