codice:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">

<html>
<head>
<title>Untitled</title>
</head>
<body>
<table>
<tr>
<td onmouseover="this.style.backgroundColor='yellow';" onmouseout="this.style.backgroundColor='';"
 onclick="window.open('http://forum.html.it','titolo',null);">Clicca</td>
</tr>
<tr>
<td onmouseover="this.style.backgroundColor='green';" onmouseout="this.style.backgroundColor='';"
 onclick="window.location = 'http://forum.html.it';">Clicca</td>
</tr>
</table>
</body>
</html>