public class HttpHelper

    {

        public static CookieContainer Cookies = new CookieContainer();

        public static string GetHttpResponse(string url, string postdata)

        {

            try

            {

                HttpWebRequest MyRequest = (HttpWebRequest)WebRequest.Create(url);

                MyRequest.Method = "POST";

                MyRequest.ContentLength = postdata.Length;

                MyRequest.CookieContainer = Cookies;

                MyRequest.KeepAlive = true;

                MyRequest.AllowAutoRedirect = true;

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

                MyRequest.UserAgent = "	Mozilla/5.0 (Windows NT 5.1; rv:14.0) Gecko/20100101 Firefox/14.0.1";

                MyRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";



                if (postdata != null)

                {

                    ASCIIEncoding MyEncoding = new ASCIIEncoding();

                    byte[] MyByte = MyEncoding.GetBytes(postdata);

                    Stream MyStream = MyRequest.GetRequestStream();

                    MyStream.Write(MyByte, 0, postdata.Length);