Random weekend project: When's my next "fun" birthday? (date.js, CSS3)

My wife and I figured out today that the next time her birthday will be on a Friday, she'll be 42 years old. Yikes!

But it did give me an idea this simple website and a chance to screw around with date.js (http://www.datejs.com/) and CSS3 (esp @font-face with http://kernest.com).

Source code (what there is of it) is available here: http://bitbucket.org/look/fun-birthday