FLV redirect @ end of Video

I'm trying to build this project so that I can hand the .swf over to my client's web developer and he can set the page that the .swf will redirect to. We've done this once before by just putting in some "goto" code...but I wasn't the one working on the project.
So here's the specs...
Flash 8 Pro - using the FLVPlayback component. At the end of the FLV we need some AS that will redirect the user to a new site...but we don't know the URL yet...that will be determined by the web people. So what's the generic way of putting in a redirect without having to put in a specific URL?
I hope this makes sense.
Thanks in advance.