<html>
<head>
<script type="text/javascript">
<!--
function tekstzichtbaar () {
dropdown = document.form.dropdownbox;
if(dropdown.options[dropdown.selectedIndex].value == "optie1") {
document.form.tekstvak1.style.visibility="visible";
document.form.tekstvak2.style.visibility="hidden";
document.form.tekstvak3.style.visibility="hidden";
}
if(dropdown.options[dropdown.selectedIndex].value == "optie2") {
document.form.tekstvak1.style.visibility="hidden";
document.form.tekstvak2.style.visibility="visible";
document.form.tekstvak3.style.visibility="hidden";
}
if(dropdown.options[dropdown.selectedIndex].value == "optie3") {
document.form.tekstvak1.style.visibility="hidden";
document.form.tekstvak2.style.visibility="hidden";
document.form.tekstvak3.style.visibility="visible";
}
}
//-->
</script>
</head>
<body>
<form name="form">
<select name="dropdownbox" onChange="tekstzichtbaar();">
<option value="optie1" checked>
Optie 1
</option>
<option value="optie2">
Optie 2
</option>
<option value="optie3">
Optie 3
</option>
</select>
<input type="text" name="tekstvak1" style="visibility: hidden;">
<input type="text" name="tekstvak2" style="visibility: hidden;">
<input type="text" name="tekstvak3" style="visibility: hidden;">
</form>
</body>
</html>