public void ImageChanged(Object sender, ImageChangedEventArgs e)
		{
			// Check that image is not null.
			if (e.Image != null)
			{
				imgMotion.Image = e.Image;
			}
		}
		// Invoke the Changed event; called whenever list changes
		protected virtual void OnImageChanged(ImageChangedEventArgs e)
		{
			if (Changed != null)
				Changed(this, e);
		}