Cgi Modul

[E.Horn]

How can i call a function in cgi!
i want to make a htmlsite which works with my main programm an gives the
result out!
if i use the functon name it does not work!
wo can i involve a function into this cgi script?
....
   use CGI;
  my $cgi = new CGI;
  use CGI::Carp qw(fatalsToBrowser);



  my $ei=$cgi->param("Search");
  $cgi->default_dtd('-//W3C//DTD HTML 4.01 Transitional//EN');

  print $cgi->header(),
   $cgi->start_html('Da),
 $cgi->h2('Query'),
print start??????
        $cgi->h3($ei),
       $cgi->hr({-noshade => undef, -size => '1'}),
   $cgi->h2({-style => 'color:blue'},
 $cgi->end_html();




how can i use this main programm in thr cgi section, that it becomes
part of the htmlpage?
sub start()
{
 my $d;
 my $date;
 $date=&request("nu");
 $doc=get $date;
 process($doc);

}