Ah, every time the function is called I'm creating a new event handler. Moved them out of the function and I think I'm there.

Yay!

Course once you switch to IE7 you'll probably find some random annoying error cropping up just to be a pain. :(

You were right :D Just does nothing after the first event in IE, I guess changing the image url doesn't force a reload of the image.

 

I have, however, got it working by forcing a page refresh. I'll try and figure out how to get IE to reload the image because it's much cleaner, but at least I can make it work regardless.