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>

<script type="text/JavaScript">
<!--
function MM_jumpMenu(targ,selObj,restore){ //v3.0
eval(targ+".location='"+selObj.options[selObj.selectedIndex].value+"'");
if (restore) selObj.selectedIndex=0;
}
//-->
</script>

</head>

<body>

<form action="">
<fieldset>
<legend>Siti per webmaster</legend>

<select name="siti" onChange="MM_jumpMenu('parent',this,0)" >
<option value="" >Seleziona </option>
<option value="foto.jpg" >Mia foto </option>
<option value="http://www.html.it">frephp.html.it </option>
<option value="http://freasp.html.it">freasp.html.it </option>
</select>
</fieldset>
</form> 

</body>
</html>
La prossima volta posta il codice usamdo i tag [CODE][/CODE] per agevolare la leggibilità