Once again. You need to understand JavaScript, and how it interacts with the browser. First, visit the site you want to automate with JavaScript switched off. If the site works, then use the pages without JavaScript. Otherwise, you need to parse the HTML with HTML::Parser or get at the radio elements through the interface of HTML::Form, and then use the values of these elements together with the code I already outlined.

Automating JavaScript-polluted pages is not easy, and you need to understand what the page exactly does before you can automate it.