Flash- Zeitleistenanimation mit Timer

import flash.utils.Timer;
import flash.events.TimerEvent;
var breite:Number = 1300;
var speed:Number = -3;


var myTimer:Timer = new Timer(50);
myTimer.addEventListener(TimerEvent.TIMER, timerFunction);

myTimer.start();

function timerFunction(event:TimerEvent)
{
	if (hero.currentFrame == 15)
	{
		hero.gotoAndStop(2);
	}
	else
	{
		hero.gotoAndStop(hero.currentFrame+1);
	}
	
	 if (panorama.x <  -  breite)
    {
        panorama.x = panorama.x+breite + speed;
    }
    else if (panorama.x > 0)
    {
        panorama.x +=   -  breite + speed;
    }
    else
    {
        panorama.x +=  speed;
    }
}