public void SetImage(string img_url)
        {
            CookieAwareWebClient wc = new CookieAwareWebClient();
            wc.m_container = cc;
            Image i = Utils.GetImageFromBytes(Comm.DecompressBytes(wc.DownloadData(img_url)));

            Utils.FitImageNicely(ref this.picCAPTCHA, i);
        }