         // Get navigation bar on top:
         if let navi = self.tabBarController?.navigationController
             as? MainNavigationController {
+                navi.reset_navigationBar();
                 self.tabBarController?.navigationItem.setLeftBarButtonItems(
-                    [], animated: true)
+                    [self.backBtn], animated: true)
                 self.tabBarController?.navigationItem.setRightBarButtonItems(
                     [], animated: true)
-                navi.reset_navigationBar();
                 self.tabBarController?.navigationItem.title = "Choose a list";
+                self.backBtn.enabled = true
         }
 
         // Populate and display table:

        }
    }

}


    let userColumnName = "user"
    let ListTitleColumnName = "title"

    // Table itself:
    @IBOutlet var addToListTableView: UITableView!

    // Navigation:
    var backBtn: UIBarButtonItem = UIBarButtonItem()
    let backBtnAction = "backBtnClicked:"
    let backBtnString = String.fontAwesomeIconWithName(.ChevronLeft) + " Cancel"

    // MARK: Override methods: ----------------------------------------------
    /* viewDidLoad:
