I have written a javascript layers navigation bar which works but when I click on one of the links in
the bar and then hit the back button the link that I have clicked to it disappears from the nav bar.

It is really strange. If you don't know what I mean go to:
http://www.ufas.f2s.com/aboutus.htm and click on the awards link (Ufas league -> Awards) then click the back button and look for
the same link, it will not be there.

Any ideas?

Suhail