function getAccessToken(code) {
    //access token URL request
    var url = "https://graph.facebook.com/oauth/access_token?client_id=<Your Key>&redirect_uri=https://www.facebook.com/connect/login_success.html&client_secret=<Your Secret>&code=" +code;
    doWebRequest("GET", url, "", parseAccessToken);
}

//parse the access token
function parseAccessToken(response) {
    accessToken = "access_token=" + parseParameter(response, "access_token");
    console.log("parseAccessToken:"+accessToken);
    //load friends on list
    loadFriends();
}

function parseFriends(response) {
    var data = eval("[" + response + "]")[0].data;
    data = data.sort(sortByName);
    friendsModel.clear();
    for(var i in data) {
        var user = data[i];
        if(user.location!==undefined)
        {
            if(user.location.id !== "" || user.location.name !==  null )
            {
                //save friends data in model
        friendsModel.append({
                        "id": user.id,
                        "name": user.name,
                       // "profileImageUrl":"https://graph.facebook.com/" + user.id + "/picture",
                         "profileImageUrl":user.picture ,
                        "lid":  (user.location!==undefined ? user.location.id : ""),
                        "lname": (user.location!==undefined ? user.location.name : ""),
    });
            }
        }
    }
    //count number of content in the list model
   friendsCount= friendsModel.count;
    console.log("parseFriends : "+friendsCount);
}

function parseFriendsLocation()
    {
           //when friend list is more then zero
        // get information about each friend from the model
        if( i <friendsNumber)
        {
         fid =  friendsModel.get(i).id;
         fname = friendsModel.get(i).name;
         fprofileImageUrl = friendsModel.get(i).profileImageUrl;
            flid = (friendsModel.get(i).lid!==undefined ? friendsModel.get(i).lid : "" );
            flname = (friendsModel.get(i).lname!==undefined ? friendsModel.get(i).lname :"");
         i++;
            if(flname !== "" || flid!== "" )
            {
             //pass friend location to get the latitude and longitude
            feedModel.locationName = flname;
            feedModel.reload();
            }
         else
         {
                //no user
             console.log("no location for the user");
         }
        }
        else
        {
            //count else
            console.log("Stopped : "+friendsNumber);
        }
    }

function addPushPin( latitude, longitude,name,friendImage)
{
             count = map.markers.length
             counter++
     component = Qt.createComponent("PushPin.qml");
    console.log(" Call "+component.status + " " + Component.Null);
    //create pushpin object
     object = component.createObject(container,
                                        { "latid": latitude,  "longit": longitude,"name":name, "friendImage":friendImage}
                                        );
    if (object.status == Component.Ready)
    {
        console.log("Component ready");
        map.addMapObject(object);
         myArray = new Array()
                 for (var i = 0; i<count; i++){
                     myArray.push(map.markers[i])
                 }
                 myArray.push(object)
                 map.markers = myArray
    }
    else // when status is ready add the pushpin on the map
        object.statusChanged.connect(addRemoteImages);
}
//add pushpn on the map
function addRemoteImages()
{
   //     console.log("addRemoteImages");
        map.addMapObject(object);
             myArray = new Array()
                 for (var i = 0; i<count; i++){
                     myArray.push(map.markers[i])
                 }
                 myArray.push(object)
                 map.markers = myArray
}