codice:
function vai() { 
	parent.this.location.href = document.getElementById('form').menu.options;
	document.getElementById('form').menu.selectedIndex=0; 
}
codice:
<form id="form">
  <select name="menu" onchange="vai()">
    <option value="pagina.htm">1</option>
    <option value="altre2.htm">2</option>
  </select>
</form>
non va

come mai ?

grazie !