Flash CS4 Slideshow

programming flash
1

Can anybody help with my slideshow. I am new to flash, and im studying on evening courses. I learnt this but its not working. I really need some help

var myTimer: Timer = new Timer(2000);
myTimer.start();

myTimer.addEventListener(TimerEvent.TIMER, nextPic)

function nextPic(e:TimerEvent):void {

if (currentFrame ==5)

{
    
    gotoAndStop(1);
    
}
else
{
    nextFrame();
}

}