Web photo album, is this possible in CGI

Hi all,

I am wanting to put something together where every time the script executes 
it looks into a set directory for photos and then builds a web page with 
those photos, or even a enlargeable thumbnail of the photo, in kind of a 
photo album way.  I don't know if something like this can be done in CGI or 
not, and figure I would ask and see what everyone here says before I give it 
a try, if it is possible maybe someone would have any tips or pointers that 
would be helpful.