public static MNImageLoader GetInstance()
        {
            if (instance == null)
             {
              instance = new MNImageLoader();
             }

             return instance;
        }
 public TaskInfo(string URL, MNImageLoader.ImageLoadedEventHandler ImageLoadedEventHandler)
 {
     this.URL = URL;
     this.ImageLoadedEventHandler = ImageLoadedEventHandler;
 }