[Leonardo]

Let say, I'm making a flash site .... if the person doesn't have flash, what can I do, so it sends the user to an alternate html site instead

[Mihai]

A flash detection script:

http://www.kirupa.com/developer/mx/detection.htm

Or do it the old fashion way and let them choose. Some people prefer seeing the non flash version even if they have flash.

[Leonardo]

A flash detection script:

http://www.kirupa.com/developer/mx/detection.htm

Or do it the old fashion way and let them choose. Some people prefer seeing the non flash version even if they have flash.

Excellent!

I would think about letting them choose though