[Templates] image sets please

[Wassim M.]

Hello,       I was wondering if any of you could be so kind and assist me with this vexing issue. I have a HUGE directory of pictures that are numbered 1,2,3,4,5,6, etc, etc.. I have divided this directory into subdirecotry sets of 100. I'm needing to determine which set we are in via the current image number. I would do this processing before calling the template, but, either I don't know how or it's not possible. So, I was looking through the manual and found you can all subs and get return values, my issue now is, I can get a value returned, but, I can't get the value I want passed. I need to pass the picture number from the template itself because each template can contain more than one sets worth of pictures, here is my example/non-working code: Any help is appreciated.   An example image call in the template:  <img src="" border="1">   And my $vars has this in it:  "set" => get_set()   The get_set routine:   sub get_set { ######################################## ## Determine the set we are in ########################################      my $pic = $_[0];    my $set;      if ($pic >= 1000) {           $set = substr($pic,0,2) . "00";      } elsif ($pic <= 1000 && $pic >= 100)  {           $set = substr($pic,0,1) . "00";      } else {           $set = "0";      }      return $set;   }   Thanks, Wassim