Is This Possible?

I am finishing a shopping cart modification (OSC) and have a question.

On our museum website, Racine Art Museum we have a Flash nav movie.

I know that it is possible to pass variables from php to flash and back again, but can I change the size of the clip based on the amount of information passed?

I'm afraid that this may be out of the scope of this board, but I am a newbie...

JC