links still active in hidden layer

Hi folks, I am really stuck on this and would appreciate any help...

The site in question is my design portfolio page

www.dib.co.uk

...and yes, i fully appreciate that code could be a lot less clunky!

The main function of the page is based on a script from Bratta.com from
2001, written by Michael van Ouwerkerk, called PageSlideFade, a great
script still in use by quite a few folks eg
http://www.schoenberg-online.de/schoems/Archiv/archiv1.htm


Everything works fine except for the following on Mozilla browsers (i
have NN6 and Firefox1):

- the links on the left navigation show/hide the content layers, which
can be scrolled etc. Fine.
- If the links on the left were labelled 1 to 5 and you activate each
in turn (ie 12345) then fine. However in Mozilla if you go "backwards"
in order, eg click link 3 then 2, the correct div is shown BUT the
links dont work - in fact the "hotspots" are retained from the previous
(now hidden) layer - ie the link is not visible but the pointer cursor
becomes a "hand" where the link would be in the previously shown layer
(3 in the example above).

Can anyone help or set me in the right direction? I have adding
this.focus to the selected layer, but that did'nt work. Bratta.com
seems to have been lost long ago and I cant seem to find the original
author on the web anymore.


Thanks, dan