Jorn's Form Validation could be this job with related option. Please look example page:
http://jquery.bassistance.de/validate/demo-test/ and you could see relation between "I'd like to receive..." and "Topics". Source code: topic: { required: "#newsletter:checked", minLength: 2 }, Cheers Marco Antonio 2007/10/24, wattaka <[EMAIL PROTECTED]>: > > > I have a set of radio buttions to select different fields in a form, > how can I trigger the validation of these text fields based on the > value of the radio buttons? > > thanks > >