* And... The main menu is now entirely CSS driven! I can't believe I managed to do it. The main issue I had for all these years was solved with a simple CSS precedence tweak. Saves about 150 bytes of CSS, at no extra CSS cost (it's pretty much the same.) Will need to clean up more things, though, but it'll come soon. (script.js, index.css)

@ The only browsers that have problems with the new systems are IE. No kidding! IE6 breaks it entirely (I'm not too thrilled about attempting to fix it...), IE7 and IE8 don't show all hovers (who cares, it works perfectly otherwise), and IE9 and IE10 have a bug in top-level menus, which not many people will notice I'm sure. Still, I've disabled the top-level animation for them, because it makes it even harder to notice said issue.

! Fixed a new bug where menus could close if hovering next to the top-level menu arrows. I'm not exactly sure why I never had the problem before, but... Whatever. (index.css)

! Basic fixes for IE6/7 and RTL. IE6 disables menus entirely (only the #navi row is visible), and IE7 needed extra help, notably with #context_menus being renamed to .context.menus loooong ago. Not sure why I forgot to update it... Oh yeah, because I hate IE. (extra.ie*.css, extra.rtl.css)
* And that'll be all for tonight, with an unimportant CSS tweak. (mana.css)