Просмотр поста

$post = здесь значение айдишника поста;
$post_ref = mysql_fetch_array(mysql_query("SELECT * FROM `forum` WHERE `id` = '" . $post ."';"));
$tema = $post_ref['refid'];
$tema_ref = mysql_fetch_array(mysql_query("SELECT * FROM `forum` WHERE `id` = '" . $tema ."';"));
$razdel = $tema_ref['refid'];

самый корявый способ