Some websites have been allowing their advertisers to build flash animations that grow over the page, perform their animation, and then shrink to a small location in the corner. Some of these animations are transparent, in that you can see the page content behind it.
For example right now at www.gamespy.com
they have an ad for Honda that shows the car driving through the screen (of course when you go there it probably wont be there anymore). I have not been able to find a single reference anywhere on how to do this. Could some one please tell me where I can find out how to do this.
Thank you very much.