Advanced button

Hi all, just a quick question (I hope)…

I’ve just finished making an advanced “easing” tell-target button for a web page I am making as a school project, but I have ran into a problem that I just cant get around.

Basically the button has an animation for the “mouse clicked” state, and when the animation is finished (on the last frame of the clip) I want it to progress to the next scene of the timeline. The only problem is that since the animation is inside a movie clip graphic, it can’t affect the main timeline (to my limited knowledge).

How can I make the timeline progress to the next scene from inside a movie clip?

Any help would be greatly appreciated,
Cheers