passare valori da Textbox a select

[br1]

Una cosa simile?

<script>
function aggiungi() {
	f = document.myFrm;
	t = f.myTxt.value;
	s = f.mySel;
	a = t.split();
	for (i=0;i<a.length;i++) {
		s.options[s.length] = new Option(a[i]);
	}
}
</script>
<form name=myFrm>
<select name=mySel>
</select>


<input type=text name=myTxt>
<input type=button value=Add onclick="aggiungi()">
</form>

ciao