case ST_CUSTOMER : return array(TB_PREF."debtors_master", null, "debtor_no", "debtor_ref", null);
case ST_SUPPLIER : return array(TB_PREF."suppliers", null, "supplier_id", "supp_ref", null);
case ST_ITEM : return array(TB_PREF."item_codes", null, "id", "stock_id", null);
case ST_CUSTOMER : return array(TB_PREF."debtors_master", null, "debtor_no", "debtor_ref", null);
case ST_SUPPLIER : return array(TB_PREF."suppliers", null, "supplier_id", "supp_ref", null);
case ST_ITEM : return array(TB_PREF."item_codes", null, "id", "stock_id", null);