Cosi...
codice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>Untitled</title>
</head>
<body>
<table summary="">
<tr>
<td class="stilebluscuro11">
Indirizzo IP:
Nazionalità: <span id="naz"></span>
Sistema Operativo: <span id="so"></span>
Risoluzione schermo: <span id="ris"></span>
Browser: <span id="bro"></span>
</td>
</tr>
</table>
<script language="JavaScript" type="text/javascript">
<!--
document.getElementById('naz').innerText = navigator.systemLanguage;
document.getElementById('so').innerText = navigator.platform;
document.getElementById('bro').innerText = navigator.appCodeName;
document.getElementById('ris').innerText = screen.width + ' x ' + screen.height;
//-->
</script>
</body>
</html>