Topic: White flash when clicking between galleries

My URL to view the issue.  Doesn't do it for me in Firefox, but does in Safari (I'm Mac):

Hello all - I have four seperate galleries online embedded in HTML frames: Fixed left navigation frame and a nested top frame - the galleries show in the main body.  All frames have a dark background, including the galleries.  When I click on a link for a new gallery, there is a flash of white background for a second or two before the new gallery loads.  I'm assuming it is an HTML issue on my part.  Can you suggest what file I could edit to remove this white flash?

PS: Thanks to Airtight and Felix - I really appreciate your application.  I'm betting that it will get me a job soon as I'm using it for my portfolio site.