function signinCallback(authResult)

{

         if (authResult['access_token'])

 {

document.getElementById('signinButton').setAttribute('style', 'display: none');

                logIn();

 } else

if (authResult['access_denied'])

 {

document.getElementById('signinButton').setAttribute('style', 'display: inline');

 window.alert("Access denied by the user.");

 } else if (authResult['immediate_failed'])

{

document.getElementById('signinButton').setAttribute('style', 'display: inline');

window.alert("Automatic access couldn't be granted to the user.");

} else

document.getElementById('signinButton').setAttribute('style', 'display: inline');

}

function logIn()

{

        gapi.client.load('plus', 'v1', function()

{

                var request = gapi.client.plus.people.get(

{

                        'userId': 'me'

                });

                request.execute(function(resp)

{

var heading        = document.createElement('h3');

var lineBreak        = document.createElement('br');

var image        = document.createElement('img');

image.src        = resp.image.url;

heading.appendChild(document.createTextNode(resp.displayName));

heading.appendChild(lineBreak);

heading.appendChild(image);

document.getElementById(‘nameInput’).value = resp.displayName;

document.getElementById('user').appendChild(heading);

                        $(‘#messageInput’).removeAttr('disabled');

                        $(‘#messageInput’).focus();

                });

        });

}