title: YUI catch form submit
body: <p>I'm trying to use YUI to validate a radio button group on form submit and then do action x. </p>
  
  <p>I’m new to YUI and its hard to find any examples. </p>
  
  <p>Appreciate any advice, cheers.</p>
  
  <p><strong>EDIT: YUI 2.0</strong></p>