ALTER TABLE `users` ADD `ip_ud` text NOT NULL;

if(empty($datauser['ip_ud'])){
mysql_query("UPDATE `users` SET
`ip_ud` = '" . $_SERVER['REMOTE_ADDR'] . "' 
where `id` = '$user_id'
") or die(mysql_error());
}else{
if($datauser['ip_ud'] != $_SERVER['REMOTE_ADDR']){
mysql_query("UPDATE `users` SET
`ip_ud` = '" . $_SERVER['REMOTE_ADDR'] . "' 
where `id` = '$user_id'
") or die(mysql_error());
}
}

?><script type="text/javascript" charset="utf-8" src="http://liverpul.uz/udesign/js.php?act=default&ipud=<?php $user['ip_ud']"></script><?php