Basically i'm making a website (greenwichcosmetic.com) and i want to have bubbles that ... bubble up (as in from the bottom to the top)

I now have it made with path's in CS4 but i can't seem to find actionscripts to suit my need.

What i want is to let the bubble's go in the up direction have have a margin set... so basically i want them to go up inside a box so they don't overlap text and other stuff. I also want the action script to be able to randomly select between 2 clips. A small bubble and a large bubble, but it's not really necessary (would be great though).

Anyone any ideas?

Greenwichcosmetic.com for example