Alright, a very preliminary patch is available for this functionality. I've done some limited testing and it seems to work. It won't flag anything new if you haven't visited the gallery. It only tells you new since your last visit and you have to visit once for us to know when you visited last. This way on your first visit it doesn't flag anything as new because it's all new. If any album then gets added and you come back a week later it will then flag the album in question as new. That make any sense? You can find it here:
http://www.spider.org/gallery
There are two files. One file is the patch, newsince.patch for the following files:
/view_album.php
/session.php
/classes/Album.php
I'm going to modify /albums.php too but haven't added that yet.
The next file is new_since_last_visit.gif which is just a small red logo to display when the album is new, copy it to /images or create your own and modify the following line in classes/Album.php after you've applied the patch to point to your own image.
return print "<IMG SRC="/images/new_since_last_visit.gif"><br>";
Finally to apply this patch do the following in your gallery root directory.
patch -p1 < /path/to/newsince.patch
Remember to backup the files that will be patched. I haven't added any comments to what I've added. I will when I fidle next.
Oh! This was all done on gallery v1.3.1 if you're using a previous version it may or maynot work.
Enjoy.
Paul