<?php
$ip = $comment->comment_author_IP[1];
if (!$ip) {$ip = 1;} if ($ip === 0) {$ip = 9;} $ip = ceil($ip/2 );
$avt = "http://bananas.lararala.com/i/av$ip.jpg";
?>
<img src="http://www.gravatar.com/avatar.php?gravatar_id=<?php echo md5(strtolower($comment->comment_author_email)); ?>&rating=X&size=50&default=<?php echo $avt; ?>" />