title: login with facebook account
body: <p>we have created a website and which consists of registration and login, what i want to do is i want to add the facilities to the users to login with their facebook login, i am using php and smarty framework, i have google it but i cant find it anywhere, i could not understand much more from <a href="http://www.goldsteintech.com/facebook_connect/overview.php" rel="nofollow">http://www.goldsteintech.com/facebook_connect/overview.php</a>....</p>
  
  <p>Example, here in stackoverflow i haven't signup, instead i login with facebook account, i want to do the same for my website</p>