User blog comment:Sarah Manley/Test the Expanded Wiki Navigation/@comment-3279487-20111013223739/@comment-2093602-20111021183146

If you can find the wiki, I can take a look for you if you want.

I actually developed one myself as well. , though I don't know how stable it is since I only tested it myself. (Doesn't work on Opera for example, though it works with the latest IE funnily enough). I originally created it for the old Navigation so we had a third level. We no longer use it now though.