anche questo non funziona c@zzo...

codice:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Documento senza titolo</title>
</head>
<body>

[img]mappa.gif[/img]
<map name="mappa" id="immagine">
<area shape="rect" coords="0, 0, 50, 50" href="http://www.google.it"
onmouseover="document.images[1].src='mappa_1.gif'" onmouseout="document.images[1].src='mappa.gif'" alt="alt1"></area>
<area shape="rect" coords="50, 0, 100, 50" href="http://www.html.it"
onmouseover="document.images[1].src='mappa_2.gif'" onmouseout="document.images[1].src='mappa.gif'" alt="alt2"></area>
</map>


</body>
</html>