After many failed attempts of trying to find a modal window that worked like facebox and used prototype, I gave up and started to write one from scratch. In the process I found the first port made by Phil Burrows. It wasn’t perfect but it was enough for me to build off of so with a few tweaks I was able to allow window resizing and let the box center itself. You can view the changes on my github.
Screenshot:

[...] after a little digging, I came across this re-write by Scott Davis. Beautifully coded, simple, and runs off the Prototype library. Just what I was [...]
It doesn’t work mate. Why add it if you don’t test it first?
Or maybe add some instructions so people can use it.
Sorry, but this is typical of the web – you think “great – some guy has come accross the same issue” then find it’s not been done right and just wastes everyones time.
Test, doccument and the text again please please please.
Perhaps it is usefull ;)
http://jerik.blogspot.com/2009/01/adding-facebox-for-prototype-to-your.html