FBML - Supported languages

Hey,

Does anyone know where I can find a list of the programming language that you can use within FBML/fan page.

I know that you can use HTML/Javascript, what else? (AJAX, etc..?)

It's much easier to do with Python, IMHO:

hxxp://wiki.developers.facebook.com/index.php/UseryFacebook_Tutorial

hxxp://www.chickenwingsw.com/scratches/python/django-facebook-1

hxxp://stackoverflow.com/questions/1613772/accessing-facebook-connect-fbml-cookie-via-pyfacebook

They had a developers console, but the link is down and I can't retrieve it for now. Also, note that AJAX is not a programming language, just a framework.