function _oauth_success()
 {
     session_start();
     $data = $_SESSION['asg_500px_data'];
     $connection = new ASG_500px_OAuth($data['consumer_key'], $data['consumer_secret'], $_SESSION['asg_500px_oauth_token'], $_SESSION['asg_500px_oauth_token_secret']);
     $access_token = $connection->getAccessToken($_REQUEST['oauth_verifier']);
     require dirname(__FILE__) . "/auth-success.php";
     exit;
 }