photoshop web photo gallery

Hi

I was just testing some experiments, but I think it can save me a lot of time if I just ask my question here.

Think two websites and photoshop generated web photo gallery

Website A, flash website, when you click a button - pop-up appears with this gallery

Website B is also a flash website, but here I want the gallery INSIDE the flashfile.

Is it in any way possible to make this first gallery also appear in the second website? But not with a pop-up.
So that if you update one website, the other is also automatically updated?

I'm not an advanced actioncript-writer. (medium will do the trick)
I already looked up some things about crossdomain-policys and how much trouble it can cause.
So perhaps any of you has some good tips and tricks related to this topic?

Many thanks in advance!