+%
+%
+%$cgi->param('custnum') =~ /^(\d*)$/ or die "Illegal custnum!";
+%my $custnum = $1;
+%my $cust_main = qsearchs('cust_main', { 'custnum' => $custnum } )
+% or die "unknown custnum $custnum";
+%
+%my $error = '';
+%if ( $cgi->param('payby') =~ /^(CARD|CHEK)$/ ) {
+% my %payby2bop = (
+% 'CARD' => 'CC',
+% 'CHEK' => 'ECHECK',
+% );
+% my $bop = $payby2bop{$1};
+% $cgi->param('refund') =~ /^(\d*)(\.\d{2})?$/
+% or die "illegal refund amount ". $cgi->param('refund');
+% my $refund = "$1$2";
+% $cgi->param('paynum') =~ /^(\d*)$/ or die "Illegal paynum!";
+% my $paynum = $1;
+% my $reason = $cgi->param('reason');
+% $error = $cust_main->realtime_refund_bop( $bop, 'amount' => $refund,
+% 'paynum' => $paynum,
+% 'reason' => $reason, );
+%} else {
+% die 'unimplemented';
+% #my $new = new FS::cust_refund ( {
+% # map {
+% # $_, scalar($cgi->param($_));
+% # } ( fields('cust_refund'), 'paynum' )
+% #} );
+% #$error = $new->insert;
+%}
+%
+%
+%if ( $error ) {
+% $cgi->param('error', $error);
+% print $cgi->redirect(popurl(2). "cust_refund.cgi?". $cgi->query_string );
+%} else {
+% print $cgi->redirect(popurl(3). "view/cust_main.cgi?$custnum");
+%}
+%
+%