text: window.fbAsyncInit = function() {
      FB.init({
          appId      : '174529669562516',
          xfbml      : true,
          cookie      :true,
          version    : 'v2.5'
      });
  };
  
  (function(d, s, id) {
      var js, fjs = d.getElementsByTagName(s)[0];
      if (d.getElementById(id)) return;
      js = d.createElement(s); js.id = id;
      js.src = "//connect.facebook.net/en_US/sdk.js";
      fjs.parentNode.insertBefore(js, fjs);
  }(document, 'script', 'facebook-jssdk'));
  
  // This function is called when someone finishes with the Login
  // Button.  See the onlogin handler attached to it in the sample
  // code below.
  function checkLoginState() {
      FB.getLoginStatus(function(response) {
          console.log("getloginstatus"+JSON.stringify(response));
          statusChangeCallback(response);
      });
  }
  
  // This is called with the results from from FB.getLoginStatus().
  function statusChangeCallback(response) {
      console.log('statusChangeCallback');
      console.log(response);
  
      // The response object is returned with a status field that lets the
      // app know the current login status of the person.
      // Full docs on the response object can be found in the documentation
      // for FB.getLoginStatus().
      if (response.status === 'connected') {
          // Logged into your app and Facebook.
          fbLoginsuccess();
      } else if (response.status === 'not_authorized') {
          // The person is logged into Facebook, but not your app.
  
          document.getElementById('status').innerHTML = 'Please log ' +
          'into this app.';
      } else {
          // The person is not logged into Facebook, so we're not sure if
          // they are logged into this app or not.
          document.getElementById('status').innerHTML = 'Please log ' +
          'into Facebook.';
      }
  }
  
  function fbLoginsuccess() {
      console.log('Welcome!  Fetching your information.... ');
      FB.api('/me', function(response) {
  
          console.log('Successful login for: ' + response.name);
          document.getElementById('status').innerHTML =
              'Thanks for logging in, ' + response.name + '!';
      });
  }