// Produces an avatar image with the hCard-compliant photo class
function commenter_link() {
    $commenter = get_comment_author_link();
    if ( ereg( '<a[^>]* class=[^>]+>', $commenter ) ) {
        $commenter = ereg_replace( '(<a[^>]* class=[\'"]?)', '\\1url ' , $commenter );
    } else {
        $commenter = ereg_replace( '(<a )/', '\\1class="url "' , $commenter );
    }
    $avatar_email = get_comment_author_email();
    $avatar = str_replace( "class='avatar", "class='photo avatar", get_avatar( $avatar_email, 80 ) );
    echo $avatar . ' <span class="fn n">' . $commenter . '</span>';
} // end commenter_link


// Custom callback to list comments in the shape style
function custom_comments($comment, $args, $depth) {
  $GLOBALS['comment'] = $comment;
    $GLOBALS['comment_depth'] = $depth;
  ?>
    <li id="comment-<?php comment_ID() ?>" class="<?php comment_class() ?>">
        <div class="comment-author vcard"><?php commenter_link() ?></div>
        <div class="comment-meta"><?php printf(__('Posted %1$s at %2$s <span class="meta-sep">|</span> <a href="%3$s" title="Permalink to this comment">Permalink</a>', 'shape'),
                    get_comment_date(),
                    get_comment_time(),
                    '#comment-' . get_comment_ID() );
                    edit_comment_link(__('Edit', 'shape'), ' <span class="meta-sep">|</span> <span class="edit-link">', '</span>'); ?></div>
  <?php if ($comment->comment_approved == '0') _e("\t\t\t\t\t<span class='unapproved'>Your comment is awaiting moderation.</span>\n", 'shape') ?>
          <div class="comment-content">
            <?php comment_text() ?>
        </div>
        <?php // echo the comment reply link with help from Justin Tadlock http://justintadlock.com/ and Will Norris http://willnorris.com/
            if($args['type'] == 'all' || get_comment_type() == 'comment') :
                comment_reply_link(array_merge($args, array(
                    'reply_text' => __('Reply','shape'),
                    'login_text' => __('Log in to reply.','shape'),
                    'depth' => $depth,
                    'before' => '<div class="comment-reply-link">',
                    'after' => '</div>'
                )));
            endif;
        ?>
<?php } // end custom_comments


// Custom callback to list pings
function custom_pings($comment, $args, $depth) {
       $GLOBALS['comment'] = $comment;
        ?>
            <li id="comment-<?php comment_ID() ?>" class="<?php comment_class() ?>">
                <div class="comment-author"><?php printf(__('By %1$s on %2$s at %3$s', 'shape'),
                        get_comment_author_link(),
                        get_comment_date(),
                        get_comment_time() );
                        edit_comment_link(__('Edit', 'shape'), ' <span class="meta-sep">|</span> <span class="edit-link">', '</span>'); ?></div>
    <?php if ($comment->comment_approved == '0') _e('\t\t\t\t\t<span class="unapproved">Your trackback is awaiting moderation.</span>\n', 'shape') ?>
            <div class="comment-content">
                <?php comment_text() ?>
            </div>
<?php } // end custom_ping