Advanced Masking Effect Help

Hey everyone:

I’m trying to create a masking effect that draws the shape of a fancy curved “W”. Regular masking can only reveal the parts that it moves over, however I would like to create a mask that can “draw” my shape.

It sounds like a very simple animation but I’m not sure how to use the masking technique or an action script that can do that.

I’d appreciate any help.

Thanks!

A-dawg