老谢博客

function comment_author_link_window() {
global $comment;
$url = get_comment_author_url();
$author = get_comment_author();
 
if ( empty( $url ) || 'http://' == $url )
$return = $author;
else
$return = "<a href='$url' rel='external nofollow' target='_blank'>$author</a>";
return $return;
}
add_filter('get_comment_author_link', 'comment_author_link_window');