%if ( $error ) {
%  $cgi->param('error', $error);
<% $cgi->redirect(popurl(1). "void-cust_bill.html?". $cgi->query_string ) %>
%} else {
<% $cgi->redirect(popurl(3). "view/cust_main.cgi?". $custnum) %>
%}
<%init>

die "access denied"
  unless $FS::CurrentUser::CurrentUser->access_right('Void invoices');

#untaint invnum
$cgi->param('invnum') =~ /^(\d+)$/ || die "Illegal invnum";
my $invnum = $1;

my $cust_bill = qsearchs('cust_bill',{'invnum'=>$invnum});

my $custnum = $cust_bill->custnum;

my $error = $cust_bill->void( $cgi->param('reason') );

</%init>