formatLongMessage necessary

function formatLongMessage($message, $board, $threadid, $page) {
        $output = '';
        $message_exploded = explode('<br>', $message);
        if ((mb_strlen($message)> KU_LINELENGTH || count($message_exploded) > 15) && $page) {
                $message_shortened = '';
                for ($i = 0; $i <= 14; $i++) {
                        if (isset($message_exploded[$i])) {
                                $message_shortened .= $message_exploded[$i] . '<br>';
                        }
                }
                if (mb_strlen($message_shortened) > KU_LINELENGTH) {
                        $message_rest = mb_substr($message_shortened, KU_LINELENGTH);
                        $message_shortened = mb_substr($message_shortened, 0, KU_LINELENGTH);
                        $open_pos = mb_strpos($message_rest, '<');
                        $close_pos = mb_strpos($message_rest, '>');
                        if($open_pos === FALSE and $close_pos or $close_pos < $open_pos){
                                $message_shortened .= mb_substr($message_rest, 0, $close_pos + 1);
                        }
                }
                $message_shortened = closeOpenTags($message_shortened);

                $output = $message_shortened . '<div class="abbrev">' . "\n" .
                '       ' . sprintf(_gettext('Message too long. Click %shere%s to view the full text.'), '<a href="' . KU_BOARDSFOLDER . $board . '/res/' . $threadid . '.html">', '</a>') . "\n" .
                '</div>' . "\n";
        } else {
                $output .= $message . "\n";
        }

        return $output;
}