$inv->Comments = $cart->Comments;
$inv->supplier_id = $cart->supplier_id;
$inv->tran_date = $cart->orig_order_date;
$inv->reference = $ref;
$inv->supp_reference = $cart->supp_ref;
$inv->Comments = $cart->Comments;
$inv->supplier_id = $cart->supplier_id;
$inv->tran_date = $cart->orig_order_date;
$inv->reference = $ref;
$inv->supp_reference = $cart->supp_ref;