# format discount
$form->{discount} *= 100;
# format uri
- $form->{homepage} = 'http://' . $form->{homepage} unless $form->{homepage} =~ m|^https?://|;
+ $form->{homepage} = 'http://' . $form->{homepage} unless ((!$form->{homepage}) || $form->{homepage} =~ m|^https?://|);
&form_header;
&form_footer;