$sql = "INSERT INTO ".TB_PREF."prices (stock_id, sales_type_id, curr_abrev, price)
VALUES (".db_escape($stock_id).", ".db_escape($sales_type_id)
.", ".db_escape($curr_abrev).", ".db_escape($price).")";
$sql = "INSERT INTO ".TB_PREF."prices (stock_id, sales_type_id, curr_abrev, price)
VALUES (".db_escape($stock_id).", ".db_escape($sales_type_id)
.", ".db_escape($curr_abrev).", ".db_escape($price).")";