function validate_form(thisform)
{
 var radioButtons;
 var feedbackString;

  var feedback = document.getElementById('jsFeedback');

/*
  if(!thisform.V5[0].checked || !thisform.owner[0].checked || !thisform.writeOff[0].checked || !thisform.mileage[0].checked || !thisform.mot[0].checked || !thisform.mods[0].checked || !thisform.uk[0].checked   ){
     feedbackString = "You need to be able to answer 'Yes' to all the questions before we can buy your bike.";
     radioButtons = 'empty';
  }
*/


  if(!thisform.owner[0].checked || !thisform.writeOff[0].checked   ){
     feedbackString = "You need to be able to answer 'Yes' to all the questions before we can buy your bike.";
     radioButtons = 'empty';
  }



  if(radioButtons == "empty"){
     feedback.innerHTML = feedbackString;
     feedback.style.display="block";
     return false; 
  }
 

  return true;

}