Flash 8/mx timeline control "back 3 frames"

[meusdesign]

I have created a gallery on a timeline. There is an image every 3 frames, I am looking for a script that when the back button is clicked, it will move back 3 frames in the timeline ( to view the previous image). So far I have only been able to find script that will go to the last frame. Does anyone know a solution to this problem?

thanks for any suggestions,
Mikal

[ZippyDee]

on(release){
_root.gotoAndStop(_currentframe - 3);
}

If it is not on the main timeline, change _root. to the name of the object

[meusdesign]

Thank You i will try it right now