var risp;
            var string = "";
            var stringOth = "";
            var objectID;
            var pageAccessToken;
            var rispostaPerToken;
            var stringinterno = "";
            var i;

            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.
                              prova();
                            } else if (response.status === 'not_authorized') {
                              // The person is logged into Facebook, but not your app.
                              document.getElementById('status').innerHTML = "Si prega di effettuare il Login all'applcazione";
                            } 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 = 'Per visualizzare la galleria effettuare Login a Facebook.';
                            }
                          };
            function checkLoginState() {
                            FB.getLoginStatus(function(response) {
                              statusChangeCallback(response);
                            });
                          }
            function prova(){
                FB.api(
                    '/422454964453085/feed', {
                        access_token : pageAccessToken
                    },
                    function (risp){
                        var count=0;
                        var link ="";
                        //risp = response;
                        for (i = 0; i < risp.data.length; i++){
                            if (risp.data[i].type == "photo"){
                                objectID = risp.data[i].object_id;
                                obtainPic(objectID, i);

                            }
                        }

                        $("#galleria").html(string);
                    }
                )
            };


            function     obtainPic(dato, i) {
                FB.api(
                    '/' + dato, {
                        access_token : pageAccessToken
                    }, function (rispDue){
                        link= rispDue.images[3].source;
                        linkGrande = rispDue.images[0].source;
                        if  (rispDue.data[0].description == undefined){
                            if (rispDue.data[0].message == undefined){
                                stringinterno +="<div class='thumbnail col-sm-6 col-md-4 col-lg-4'><img class='imag' src='" + link + "'><div class='caption'><h3>" + rispDue.data[0].from.name + "</h3><p>" + rispDue.data[0].story + "</p></div></div>";
                            } else {
                                stringinterno +="<div class='thumbnail col-sm-6 col-md-4 col-lg-4'><img class='imag' src='" + link +  "'><div class='caption'><h3>" + rispDue.data[0].from.name + "</h3><p>" + rispDue.data[0].message + "</p></div></div>";
                            }
                        }   else {
                            stringinterno +="<div class='thumbnail col-sm-6 col-md-4 col-lg-4'><img class='imag' src='" + link +  "'><div class='caption'><h3>" + rispDue.data[0].from.name + "</h3><p>" + rispDue.data[0].description + "</p></div></div>";
                        }
                    }
                )
            }

            window.fbAsyncInit = function() {


                FB.init({
                    appId      : '866225023436362',
                    cookie     : true,
                    xfbml      : true,
                    version    : 'v2.3'
                });

        FB.getLoginStatus(function(response) {
            pageAccessToken = response.authResponse.accessToken;
            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 = "http://connect.facebook.net/it_IT/sdk.js#xfbml=1&version=v2.3&appId=871644672893047";
                fjs.parentNode.insertBefore(js, fjs);
            }(document, 'script', 'facebook-jssdk'));

            function testAPI() {
                    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 + '!';
                    });
                  }