<script type="text/javascript">
<!--
function displayInput(o){
var elm1 = document.getElementById("foo");
var elm2 = document.getElementById("bar");
switch(o.selectedIndex){
case 0:
// Ingenting händer. Coolt...
break;
case 1:
elm1.style.visibility = (elm1.style.visibility == "hidden") ? "visible" : "hidden";
break;
case 2:
// Ingenting händer. Ännu coolare...
break;
case 3:
elm2.style.visibility = (elm2.style.visibility == "hidden") ? "visible" : "hidden";
break;
}
};
//-->
</script>
<body>
<form>
<select onchange="displayInput(this)">
<option value="1">Alternativ 1</option>
<option value="2">Alternativ 2</option>
<option value="3">Alternativ 3</option>
<option value="4">Alternativ 4</option>
</select>
<div>
<input type="text" id="foo">
<input type="text" id="bar">
</div>
</form>
</body>
:)