Get the list of files in @list
Set the maximum number per page in $max
Determine from the CGI param "page", which page we're
     supposed to display.  Default to 0 if not set.
Divide the list by $max, round up.  Save this in $chunk.
Take the section of @list from $max*$page to
    ($max*($page+1)-1) or the end, whichever.
Display the list of things from the previous step.
At the end of the page, make links back to this script 
    for each of 0 to $chunk.  Bake page=$chunk into each
    of the link urls.  These will display various pages
    of the list.