                 self.sessionViews![i] = sessionView!
             }
             // Set title for header session
-            if self.dataSource?.respondsToSelector("titleForHeaderAtSession:") != nil {
-                let sesionTitle: String = self.dataSource!.titleForHeaderAtSession(i)
-                sessionView?.button?.setTitle(sesionTitle, forState: UIControlState.Normal)
-            }
+            let sesionTitle: String? = self.dataSource?.titleForHeaderAtSession(i)
+            sessionView?.button?.setTitle(sesionTitle, forState: UIControlState.Normal)
         }
         
         // Init menu item for session

        } else {
            return self.dataSource?.viewControllerForIndexPath!(indexPath)
        }
        
        return nil
    }
    
    func saveViewControler(controller: UIViewController?, atIndexPath indexPath: NSIndexPath) {

        if let tDic = thumbnailDic[indexPath.row] {
            return tDic
        } else {
            //return self.dataSource?.thumbnailImageAtIndexPath!(indexPath)
            return nil
        }
    }
    
    func saveThumbnailImage(image: UIImage?, atIndexPath indexPath: NSIndexPath) {
