document.cancel()

[Reale_Augello]

... qui:

<script>
function sel()
{
menuc=document.formc.menuc.value;
switch(menuc) {
 case 1:
 document.getElementById('livello').innerHTML='
aaaaaaaaaaaaaa';
 break;
 case 2:
 document.getElementById('livello').innerHTML='
bbbbbbbbbbbbbb';
 break;
 case 3:
 document.getElementById('livello').innerHTML='
cccccccccccccc';
 break;
 }
}

</script>
<div id="livello"></div>

<form name=formc >
<select name="menuc" onchange='sel()'>
<option value=0>seleziona una voce</option>
<option value=1>aaa</option>
<option value=2>bbb</option>
<option value=3>ccc</option>
</select>
</form>

Ciao !