public void login() {
        if (email.isEmpty() || pass.isEmpty()) {
            NotifyUtil.warn("Acount Data", "You need to specify and account e-mail and password.", false);
            return;
        }
        final ProgressHandle handle = ProgressHandleFactory.createHandle("Connecting to Facebook ...");
        final Runnable task = new Runnable() {

            @Override
            public void run() {
                handle.start();
                handle.switchToIndeterminate();
                FacebookJsonRestClient client = new FacebookJsonRestClient(API_KEY, SECRET);
                client.setIsDesktop(true);
                HttpURLConnection connection;
                List<String> cookies;
                try {
                    String token = client.auth_createToken();
                    String post_url = "http://www.facebook.com/login.php";
                    String get_url = "http://www.facebook.com/login.php" + "?api_key=" + API_KEY + "&v=1.0" + "&auth_token=" + token;
                    HttpURLConnection.setFollowRedirects(true);
                    connection = (HttpURLConnection) new URL(get_url).openConnection();
                    connection.setRequestMethod("GET");
                    connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401");
                    connection.setRequestProperty("Host", "www.facebook.com");
                    connection.setRequestProperty("Accept-Charset", "UFT-8");
                    connection.connect();
                    cookies = connection.getHeaderFields().get("Set-Cookie");
                    connection = (HttpURLConnection) new URL(post_url).openConnection();
                    connection.setRequestMethod("POST");
                    connection.setRequestProperty("User-Agent", "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.2.3) Gecko/20100401");
                    connection.setRequestProperty("Host", "www.facebook.com");
                    connection.setRequestProperty("Accept-Charset", "UFT-8");
                    if (cookies != null) {
                        for (String cookie : cookies) {
                            connection.addRequestProperty("Cookie", cookie.split(";", 2)[0]);
                        }
                    }
                    String params = "api_key=" + API_KEY + "&auth_token=" + token + "&email=" + URLEncoder.encode(email, "UTF-8") + "&pass=" + URLEncoder.encode(pass, "UTF-8") + "&v=1.0";
                    connection.setRequestProperty("Content-Length", Integer.toString(params.length()));
                    connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
                    connection.setDoOutput(true);
                    connection.connect();
                    connection.getOutputStream().write(params.toString().getBytes("UTF-8"));
                    connection.getOutputStream().close();
                    cookies = connection.getHeaderFields().get("Set-Cookie");
                    if (cookies == null) {
                        ActionListener listener = new ActionListener() {

                            @Override
                            public void actionPerformed(ActionEvent e) {
                                String url = "http://www.chartsy.org/facebook/";
                                DesktopUtil.browseAndWarn(url, null);
                            }
                        };
                        NotifyUtil.show("Application Permission", "You need to grant permission first.", MessageType.WARNING, listener, false);
                        connection.disconnect();
                        loggedIn = false;
                    } else {
                        sessionKey = client.auth_getSession(token);
                        sessionSecret = client.getSessionSecret();
                        loggedIn = true;
                    }
                    connection.disconnect();
                    handle.finish();
                } catch (FacebookException fex) {
                    handle.finish();
                    NotifyUtil.error("Login Error", fex.getMessage(), fex, false);
                } catch (IOException ioex) {
                    handle.finish();
                    NotifyUtil.error("Login Error", ioex.getMessage(), ioex, false);
                }
            }
        };
        WindowManager.getDefault().invokeWhenUIReady(task);
    }