title: Access virtuemart cart and shop for registered user only
body: <p>Can i restrict the access permission for virtuemart cart and shop. It is my client requirement to show add to cart and user cart only for registered user and whenever any visitor try to get cart it will be redirected on login page.
  have any possibility in virtuemart to fix access permission for non register user OR I should to change shop module code to restrict the access.
  Need your suggestion very fast...</p>
  
  <p>Thanks</p>