hidden('wo_ref', $_POST['wo_ref']);
hidden('units_issued', $_POST['units_issued']);
hidden('released', $_POST['released']);
hidden('released_date', $_POST['released_date']);
hidden('selected_id', $selected_id);
hidden('wo_ref', $_POST['wo_ref']);
hidden('units_issued', $_POST['units_issued']);
hidden('released', $_POST['released']);
hidden('released_date', $_POST['released_date']);
hidden('selected_id', $selected_id);