I like this a lot. I can't stand those image galleries where the frame resizes itself every time you load a new picture. There's a little bug in Firefox 15.0.1 (sorry, not an Administrator):

1) Advance to the last page -- progress is 99.99%. 2) Go back one page -- progress stays at 99.99%. 3) Go back another page -- progress is 57.08% (which happens to be correct).