JS SDK async

<div id="fb-root"></div>
<script>
window.fbAsyncInit = function() {
   FB.init({
   appId  : '142859072412938',
   status : true, // check login status
   cookie : true, // enable cookies to allow the server to access the session
   xfbml  : true, // parse XFBML
   //channelUrl : '', // channel.html file
   oauth  : true // enable OAuth 2.0
});
	FB.Event.subscribe('auth.login', function(response){
	location.reload();
	});
	FB.Event.subscribe('auth.logout', function(response){
	location.reload();
	});

};
  // Load the SDK Asynchronously
(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/all.js";
  fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));
</script>