nicht angemeldet
<html>
<head>
<script>
function UpdateDD()
{
for (var i = document.form1.ddmenu.length; i >=0; i--)
{
document.form1.ddmenu.options[i] = null;
}
}
</script>
</head>
<body>
<form name="form1">
<select name="ddmenu">
<option value="eins" selected>Eins</option>
<option value="zwei">Zwei</option>
<option value="drei">Drei</option>
<option value="vier">Vier</option>
<option value="fuenf">Fünf</option>
<option value="sechs">Sechs</option>
</select>
</form>
[..........]
<a href="javascript:UpdateDD();">UpdateDD</a>
</body>
</html>