Thanks, I've volunteered for a local group which I'm a member. It's better if you see the page it's on and the js file is inline. The page is:
Click Quiz and then on the first image. Hope it's all there. PS I have copied across a mootools 1.11 version (they all fail). If you want to see the obfuscated one I will have to put it back. I would like to get a source one working.
PS2 the idea of this quiz is to enable people to answer by printing the page as a PDF (config. later). If there was a form version where the answers could be submited as well that would be great.