Hi!
Ich hoffe das hilft. Ich hab's nur im FF gestestet.
Grüße
Jens
<script type="text/javascript">
function show (temp) {
document.getElementById("t2").style.visibility = "visible";
document.getElementById("t3").style.visibility = "visible";
auswahl = temp.selectedIndex;
if (auswahl==0) {
document.getElementById("t2").style.visibility = "hidden";
document.getElementById("t3").style.visibility = "hidden";
}
if (auswahl==1) document.getElementById("t3").style.visibility = "hidden";
}
</script>
<body>
<form name="form1" method="post" action="">
<input name="textfield" type="text" id="t1" value="1">
<br>
<input name="textfield" type="text" id="t2" value="2">
<br>
<input name="textfield" type="text" id="t3" value="3">
<br><br>
<select id="selecter" name="select" onChange="show(this)">
<option value="1">1</option>
<option value="2">2</option>
<option value="3" selected>3</option>
</select>
</p>
</form>