use strict;
use warnings;
use Data::Dumper;
use CGI qw(:standard Vars);

print header,
   start_html('sticky checkbox test'),
   start_form,
   checkbox('foo',undef,'ON','Test Check Box'),
   br,
   submit('Submit'),
   reset,
   end_form,
   end_html,
;

if (param('Submit')) {
   print pre(Dumper {Vars});
}
[download]

L-LL-L--L-LL-L--L-LL-L--
-R--R-RR-R--R-RR-R--R-RR
B--B--B--B--B--B--B--B--
H---H---H---H---H---H---
(the triplet paradiddle with high-hat)