my $hidden_form = $cgi->start_form(
    -name=>"resubmission,
    -method=>"POST",
    -action=>$input_cgi_location,
  );
  foreach my $p ($cgi->param) {  $hidden_form .= $cgi->hidden($p); }
  $hidden_form .= $cgi->submit(
    -name=>"resubmitted",
    -value=>"Return to input form",
  );
  $hidden_form .= $cgi->end_form;