Prototype.js and radio buttons

[MacCult]

Hi,

I am doing a form validation using Prototype.js. My problem is validating radio button. I am using Form.Element.Serializers.inputSelector to validate the radio button. I understand that it will return an array. I am wondering how do I go about checking which radio button is checked. Please reply soon.

Thanks.

[KC-Luck]

you should just use $F(buttonID)
it will return the selected @value, if any

[SecretPete]

Instead of:
var typeValue = $F('type');

Use this:
var typeValue = Form.getInputs('myform','radio','type').find(function(radio) { return radio.checked; }).value;

From Rex Chung:
http://www.rexchung.com/2007/02/22/getting-radio-buttons-value-with-prototypejs/

[al.caughey]

I use the function provided at http://xavisys.com/2007/03/using-prototype-javascript-to-get-the-value-of-a-radio-group/