$all_minutes = $total_hours + $total_minutes;
    $total_time = $total_time + $all_minutes;
    $total_time_hours += int($total_time / 60);

##</code><code>##

    $all_minutes = $total_hours + $total_minutes;
    $total_time_hours = int($all_minutes / 60);

##</code><code>##

   $row[0] = "&nbsp;" if($row[0] eq "");
   $row[1] = "&nbsp;" if($row[1] eq "");
   $row[2] = "&nbsp;" if($row[2] eq "");
   etc..

##</code><code>##

   foreach $item(@row){
      $item = "&nbsp;" if($item eq "");
   }