jquery: how to check if all radio buttons in a div are selected

Question

my html looks like this

Answer 1

Looking for something along these lines? http://jsfiddle.net/gXsZp/3/

   Q1
  
  
  
  
Q2

  
  
  
    
Q3  

  
  
  







$('#btn').click(function(){
    if ( $('#div1 input:radio:checked').size() == 3 )    
        return true;
    return false;
});