giving up

I give up on the animation. To me it seems that there is no simple
solution in JavaScript to this. Part of the problem are the browser's
navigation buttons. I'd have to add exceptions to all given possible
navigation outcomes. Plus the page's own navigation and the galleries,
which I intend to be updated on a single file. I guess the later is
already a big improvement over the old page. At least I won't have to
upload the galleries four times every time.