ช่วยแนะนำวิธีการ Logout ด้วย Facebook Javascript SDK หน่อยครับ

function statusChangeCallback(response) {

    	if (response.status === 'connected') {
      		show();
    	}
  	}

  	function Login() {
    	FB.login(function(response) {
      		statusChangeCallback(response);
    	});
  	}

  	function Logout() {
  		FB.logout(function(response) {;

                (ไม่รู้ว่าต้องทำยังไงครับ ให้มัน Logout ออกจากระบบ facebook)

  		});
	}


  	window.fbAsyncInit = function() {
  		FB.init({
    		appId      : '1448334xxxxxxxxx',
    		cookie     : true,  
    		xfbml      : true,  
    		version    : 'v2.1' 
  		});

  		FB.getLoginStatus(function(response) {
    		statusChangeCallback(response);
  		});
  	};

  	(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'));


  	function show() {
    	FB.api('/me',{fields: "id,age_range,picture,birthday,email,first_name,gender,middle_name,name"}, 
    		function(response) {

    		console.log('API response', response);

    		var d = new Date();
			var time = "วัน" + d.getDay() + "<br>" + d.getDate() + ":"+ + d.getHours() + ":" + d.getMinutes() + ":" + d.getSeconds();


      		//$('.imgfacebook').attr({src:'http://graph.facebook.com/'+response.id+'/picture?type=normal'});
      		$(".imgfacebook").html('<img src="' + response.picture.data.url + '"> ');
      		$(".name").html(response.name);
      		$(".id").html(response.id);
      		$(".email").html(response.email);
      		$(".gender").html(response.gender);
      		$(".url").html(response.link);
      		$("h1").html(time);

      		//window.location.replace("http://stackoverflow.com"); redirect page
    	});
  	}