title: Prevent users from login to same system using different browsers (IE and FF)
body: <p>We have a web application where users can login.</p>
  
  <p>Now what we want is that the same user should not be able to login using different browsers.</p>
  
  <p>Basically currently a user using two different browsers (IE and FF) can log in to the same account at the same time.  When you hit the login button, is it possible to invalidate all other logins for that account.</p>
  
  <p>What is the best possible approach to do this?</p>
  
  <p>PS: We are using Struts, Spring and Hibernate in our web application.</p>
  
  <p>Thanks !</p>