Milonic JavaScript Menu

I've taken out the unnecessary code (zeros and "none") and fixed the broken submenu -- over-hasty cutting and pasting! :oops:

I wonder if the black menu was NS4 misinterpreting my illegal "none" values -- does it say "top" now? I tried to test i myself, but NS4 seems to have vanished off my old ...

I am using a fixed side menu at the top of the page and a following 'top' menu to get you back to it once you scroll down the page. Can I safely position the scrolling one in the same space as the side menu, so that it 'hides' behind it until I scroll down, and then emerges? I've tried it in recent ...