if (!$main::auth->assert('sales_all_edit', 1)) {
# only show own invoices
$where .= " AND a.employee_id = (select id from employee where login= ?)";
if (!$main::auth->assert('sales_all_edit', 1)) {
# only show own invoices
$where .= " AND a.employee_id = (select id from employee where login= ?)";