Photo Gallery Using XML and Flash

1

I think this is a great XML / Flash photo gallery, but I want to add another feature to it. I like that you can scoll through the photos with the next or previous button and / or use the arrow keys. However, I want the photos to rotate or scroll automatically based on a certain amount of timing passing. I have added the following code and can not get it to work. Has anyone done this or can anyone tell what I am doing wrong with the code?

time = getTimer();
delay = 6500;

if (Number(getTimer()) > Number(time) + delay){
nextImage();
} else if (Number(getTimer()) < Number(time) + delay){
prevImage();
}