$_SESSION['supp_trans']->add_grn_to_trans($_POST['GRNNumber'],
$_POST['po_detail_item'], $_POST['item_code'],
$_POST['item_description'], $_POST['qty_recd'],
$_SESSION['supp_trans']->add_grn_to_trans($_POST['GRNNumber'],
$_POST['po_detail_item'], $_POST['item_code'],
$_POST['item_description'], $_POST['qty_recd'],