[FlashCS3]Help needed!

Am in need of help and would be eternally grateful for anyone that can solve my problem

I’ve basically created a flash movie that’s a drawing pad which works fine- but in the corner there is a button to clear the screen (of whatever drawings there are on the page) which should be followed by a movie of a ball rolling off the stage and giving you a blank screen so you can have a new clear space to draw on.

The problem is that the movie (of the ball rolling off the stage) plays first then it clears the screen (of the drawings) after, and I need it to be the other way around (So that the stage is clear and after that the movie will play). I’ve attached the movie… please can someone help i’m at the end of my tether