Make grass so it is waving around?

hey all,

I just wanted to see, is it possible to make grass on the ground of a flash document, and make it wave around?

Because I want to make a banner and it is for sport, and I want grass to be waving around, then a soccer ball bounce past the screen. Then The soccer ball to zoom past the screen from the opposite direction really fast, and leave the words of my website after it.

Anyway, can anyone help?