% $cgi->param('refund') =~ /^(\d*)(\.\d{2})?$/
% or die "illegal refund amount ". $cgi->param('refund');
% my $refund = "$1$2";
% $cgi->param('refund') =~ /^(\d*)(\.\d{2})?$/
% or die "illegal refund amount ". $cgi->param('refund');
% my $refund = "$1$2";