choose 2 options from a list and display there relevant camstream

I would like to offer the viewer a list of webcam live streams where he can choose 2 of the streams this then results in the chosen 2 streams displaying, I have the code for the webcam live streams.

I saw this
Ajax Includes script FF1+ IE5+ Opera8+
This script uses Ajax (DHTML interacting with the server) to let you dynamically include the contents of an external page onto the current document. It's similar in function to the Iframe SSI script below, though uses no frames.

but I dont know if this would do what I need

any advise would be welcome