POST/GET/REFERRER Simple Function

        private void HKPV(string URL, string PDATA, string GDATA, int INTERVAL, string REFERRER)
        {
            try
            {
                if (GDATA != "" && PDATA == "")
                {
                    URL = URL + GDATA;
                }
                HttpWebRequest req = (HttpWebRequest)WebRequest.Create(URL);
                if (PDATA != "" && GDATA == "")
                {
                    req.Method = "POST";
                    req.ContentType = "application/x-www-form-urlencoded";
                    byte[] buffer = Encoding.ASCII.GetBytes(PDATA);
                    req.ContentLength = buffer.Length;
                    Stream PostData = req.GetRequestStream();
                    PostData.Write(buffer, 0, buffer.Length);
                    PostData.Close();
                }
                // req.Proxy = PROXY;
                if (REFERRER != "")
                {
                    req.Referer = REFERRER;
                }
                HttpWebResponse resp = (HttpWebResponse)req.GetResponse();
                MessageBox.Show(resp.StatusCode + " : " + req.Referer);
                Stream dataStream = resp.GetResponseStream();
                StreamReader reader = new StreamReader(dataStream);
                string responseFromServer = reader.ReadToEnd();
                textBox6.Text = responseFromServer;
            }
            catch (Exception ex)
            {
                MessageBox.Show(Convert.ToString(ex.Message));
                return;
            }
        }