Index: wp-includes/comment-template.php
===================================================================
--- wp-includes/comment-template.php	(revision 10210)
+++ wp-includes/comment-template.php	(working copy)
@@ -984,9 +984,9 @@
 	$link = '';
 
 	if ( get_option('comment_registration') && !$user_ID )
-		$link = '<a rel="nofollow" href="' . site_url('wp-login.php?redirect_to=' . get_permalink()) . '">' . $login_text . '</a>';
+		$link = '<a rel="nofollow" class="comment-reply-login" href="' . site_url('wp-login.php?redirect_to=' . get_permalink()) . '">' . $login_text . '</a>';
 	else
-		$link = "<a rel='nofollow' href='" . wp_specialchars( add_query_arg( 'replytocom', $comment->comment_ID ) ) . "#" . $respond_id . "' onclick='return addComment.moveForm(\"$add_below-$comment->comment_ID\", \"$comment->comment_ID\", \"$respond_id\", \"$post->ID\")'>$reply_text</a>";
+		$link = "<a rel='nofollow' class='comment-reply-text' href='" . wp_specialchars( add_query_arg( 'replytocom', $comment->comment_ID ) ) . "#" . $respond_id . "' onclick='return addComment.moveForm(\"$add_below-$comment->comment_ID\", \"$comment->comment_ID\", \"$respond_id\", \"$post->ID\")'>$reply_text</a>";
 	return apply_filters('comment_reply_link', $before . $link . $after, $args, $comment, $post);
 }