Interaction between as3 class

Hi, I’m new with Action Script 3.0 and I need your help to complete my first task.

I have two movie clips running in my project: “Sleepball” and “Ball”. I’ve linked both of them to the proper file (Sleepball.as and Ball.as). Currently it works fine, my event handlers are working pretty well and it does exactly what I need them to do. However, I would like to add an action to my class Sleepball in order to start (awake) my movie clip Ball, which is stopped in its constructor.

Basically, I need to trigger Ball.start() from my Sleepball.awake(m:MouseEvent) method.

Thank you for help folks.