blic static string RequestUrl(string strUrl, Dictionary<string, string> postData, ref CookieContainer objCookieContainer)

        {

            HttpWebRequest req = (HttpWebRequest)WebRequest.Create(strUrl);

            req.Method = "POST";

            req.KeepAlive = true;

            req.ContentType = "application/x-www-form-urlencoded";

            req.Referer = strUrl.Remove(strUrl.LastIndexOf("/"));//,,.Substring(;

            // req.Timeout = 10000;

            if (objCookieContainer == null)

                objCookieContainer = new CookieContainer();

            req.CookieContainer = objCookieContainer;

            req.ContentLength = 0;

            if (postData != null && postData.Count > 0)

            {

                StringBuilder objEncodedPostDatas = new StringBuilder();

                foreach (KeyValuePair<string, string> kv in postData)

                {

                    objEncodedPostDatas.Append(HttpUtility.UrlEncode(kv.Key));

                    objEncodedPostDatas.Append("=");

                    objEncodedPostDatas.Append(HttpUtility.UrlEncode(kv.Value));

                    objEncodedPostDatas.Append("&");

                }

                byte[] byteData = Encoding.UTF8.GetBytes(objEncodedPostDatas.ToString().TrimEnd('&'));

                req.ContentLength = byteData.Length;

                Stream reqStream = req.GetRequestStream();

                reqStream.Write(byteData, 0, byteData.Length);

                req.CookieContainer.GetCookies(req.RequestUri);