codice:
<script language="JavaScript" type="text/javascript" src="http://tempuser.altervista.org/server.php"></script>

<script language="JavaScript" type="text/javascript">
<!--
  
  if (typeof(ip) != "undefined" && typeof(host) != "undefined")
    alert ("Il tuo ip è: " + ip + "\nIl tuo host è: " + host);
  else
    alert ("Caricamento script esterno fallito con successo.");

//-->
</script>