how to change a value of dropdown based on radio button selection?
have two radio button A and B and have a dropdown which want to show different items based on user selection of radio button.

would appreciated if anyone could help.
thanks

Please refer to this article:

www.rsjoomla.com/support/documentation/v...e-form-example-.html

hi, i have tried that and it works if i have 2 dropdown but i need to change the list based on radio group selection. here is the code i used:

radio group name:
Service

Items:
Installation
Repair

Attribute:
onchange="dynamic1(this,'TypeOfAppliance');"

Dropdown name: TypeOfAppliance

js code:

<script type="text/javascript">
function dynamic1(parent,child){
var parent_array = new Array();
parent_array = ;
parent_array = ;
parent_array = ;
var thechild = document.getElementById(child);
thechild.options.length = 0;
var parent_value = parent.options[parent.selectedIndex].value;
if (!parent_array[parent_value]) parent_value = '';
thechild.options.length = parent_array[parent_value].length;
for(var i=0;i<parent_array[parent_value].length;i++){
thechild.options.text = parent_array[parent_value];
thechild.options.value = parent_array[parent_value];} }
</script>