Hi
I use lightroom to build multiple galleries for our website (wwe.dottiecampbell.com). I have a portfolio page that opens the "index" page of each gallery in a NEW window. When someone has looked at the particular portfolio, they can just close the window and the portfolio web page is still there. This is one way to do it.
I am probably going to move to the TTG galleries (
http://lightroom.theturninggate.net/) which seem to have the ability to put a couple of urls on each page of a generated portfolio. You could have one of these URL's always point back to the home page.) You could get those, install in Lightroom and do that. Look at this site:
www.juliestephenson.net/artistbooks.html. (I think the site a bit confusing, but you can see how this TLG gallery has links on the pages of the portfolio.)
good luck.
I am curious as to what you end up with.
ed
baltimore