Ajax-Kommentare: Nicht immer rel=external

<?php
    require_once('../../../wp-config.php');
    global $comment, $comments, $post, $wpdb, $authordata;
    $id = (int) $_POST['id'];
    $post = &get_post($id);
    $comments = $wpdb->get_results("SELECT * FROM $wpdb->comments WHERE comment_post_ID = '$id' AND comment_approved = '1' ORDER BY comment_date");


    $authordata = get_userdata($post->post_author);
?>


<?php $comment_num = 1; //initialize comment counter ?>


<div id="comText<?php echo $id; ?>"> 


    <div class="ajax-comments-wrapper">
        
            <?php foreach ($comments as $comment) : ?>
                <?php $authcomment=''; if ($comment->comment_author_email == $authordata->user_email) { $authcomment=1; } ?>
                
                <div class="ajax-comment<?php if ($authcomment) {echo '-alt';} ?>">
                    <div class="ajax-comment-header<?php if ($authcomment) {echo '-alt';} ?>"><a id="comment-<?php comment_ID() ?>"></a>
                        <span class="ajax-comment-info">
                               <?php if ('' == $comment->comment_type) { ?>
                                <?php comment_date('d.m.Y') ?> | 
                                <?php comment_time('G:i') ?> | 
                                #<?php echo $comment_num; ?>
                            <?php } elseif ('trackback' == $comment->comment_type) { ?>
                                <?php _e('Trackback'); ?>
                            <?php } elseif ('pingback' == $comment->comment_type) { ?>
                                <?php _e('Pingback'); ?>
                            <?php } ?>
                          </span>


                        <span class="ajax-comment-author"><?php comment_author_link('rel="external"') ?></span>
                    </div>
                    <div class="ajax-comment-text">
                        <?php comment_text('rel="external"') ?>
                    </div>
                </div>
                <?php $comment_num++; ?>
            <?php endforeach; /* end for each comment */ ?>
    
        <span class="ajax-options"><a href="<?php comments_link(); ?>">Kommentieren</a></span>


    </div>
</div>