title: Delete Cookies from Webbrowser control in wp7
body: <p>I have a problem with facebook and google logout.  My scenario  is when user first time login with facebook or google for particular site.(using clint api, it will redirect to their own web browser). then it will show the login page . after successfully logout if again login with facebook or google i m trying it's not showing the login page , it directly shows the login success message.(because webbrowser history already there, and i am not able to delete the history) so in this situation multiple user can't login with facebook or google.</p>
  
  <p>have anyone idea? how to solve this problem?</p>