This will be old news for some, but it is so useful i thought i would post it here. If you need some JavaScript code to do Flash player version detection, check out the the Moock FPI (Flash Player Inspector) that Colin Moock has put together. This is the best JavaScript Flash detection code I have seen.

Note : I am planning to integrate it into my site, but had some problems with Radio inserting HTML markup into my JavaScript. If anyone has any solutions, post them in the comments.

Update : Dave Winer sent me this link, which describes how to fix the problem with Radio inserting HTML markup whenever it see JavaScript comments.