         let params: [String: String] = ["pseudo": self.user.pseudo as String, "latitude": String(self.user.latitude), "longitude": String(self.user.longitude), "state": String(self.user.state)]
         self.apiService.updateLocation(params) { (user, err) in
         }
+        self.user = UserService.getUserInSession()
+        self.mapView.removeAnnotations(self.annotations)
     }
     
     @IBAction func paramButtonClic(sender: AnyObject) {

        super.viewDidLoad()
        self.hideKeyboardWhenTappedAround()
        initSearchField()
        self.updateLocation()
        
        mapView.delegate = self
        

        initButton(contactButton, icon:"fa-users", submenu: true)
        initButton(findMeButton, icon:"fa-street-view", submenu: true)
        
        //gestion de la localisation de l'utilisateur
        self.locationManager.delegate = self
        self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
