my %hash = $old->hash;
$hash{'setup'} = $cgi->param('setup') ? str2time($cgi->param('setup')) : '';
$hash{'bill'} = $cgi->param('bill') ? str2time($cgi->param('bill')) : '';
my %hash = $old->hash;
$hash{'setup'} = $cgi->param('setup') ? str2time($cgi->param('setup')) : '';
$hash{'bill'} = $cgi->param('bill') ? str2time($cgi->param('bill')) : '';