/**
     * returns my threads topics XML
     * @param $wp			return whole page XML
     */
    function getMyThreadsXML($wp)
    {
        global $gConf;
        $user = $this->getLoginUser();
        $fdb = new DbForum();
        $f = $fdb->getForum($forum_id);
        if (!$user) {
            return $this->_no_access($wp);
        }
        $x1 = <<<EOF
<forum>
\t<title>My Topics</title>
\t<desc>Topics you participate in</desc>
</forum>
EOF;
        $x2 = '';
        $user_last_act = (int) $fdb->getUserLastActivity($user);
        $a = $fdb->getMyThreadsTopics($user);
        reset($a);
        $t = '';
        while (list(, $r) = each($a)) {
            $lp = $fdb->getTopicPost($r['topic_id'], 'last');
            $fp = $fdb->getTopicPost($r['topic_id'], 'first');
            $td = $fdb->getTopicDesc($r['topic_id']);
            $this->_buld_topic_desc($td);
            if (!$user) {
                $new_topic = 0;
            } else {
                $new_topic = $this->isNewTopic($r['topic_id'], $r['last_post_when'], $user_last_act) ? 1 : 0;
            }
            encode_post_text($r['topic_title'], $wp, 1);
            $t .= <<<EOF
<topic id="{$r['topic_id']}" new="{$new_topic}" lpt="{$r['last_post_when']}" lut="{$user_last_act}">
\t<url>javascript:return vod(0);</url>
\t<onclick>return f.selectTopic({$r['topic_id']});</onclick>
\t<title>{$r['topic_title']}</title>
\t<desc>{$td}</desc>
\t<count>{$r['count_posts']}</count>
\t<last_u>{$lp['user']}</last_u>
\t<last_d>{$lp['when']}</last_d>
\t<first_u>{$fp['user']}</first_u>
\t<first_d>{$fp['when']}</first_d>
</topic>
EOF;
        }
        $p = '';
        $num = $fdb->getTopicsNum($forum_id);
        for ($i = 0; $i < $num; $i += $gConf['topics_per_page']) {
            $p .= '<p c="' . ($start >= $i && $start < $i + $gConf['topics_per_page'] ? 1 : 0) . '" start="' . $i . '">' . ($i / $gConf['topics_per_page'] + 1) . '</p>';
        }
        if ($wp) {
            $li = $this->_getLoginInfo();
            return $this->addHeaderFooter($li, "<topics><pages>{$p}</pages>{$x2}{$x1}{$t}</topics>");
        } else {
            $cu = $this->getUrlsXml();
            return "<root>{$cu}<topics><pages>{$p}</pages>{$x2}{$x1}{$t}</topics></root>";
        }
    }