i am trying to post data via HTTP Post using name value key pair. But I am unable to post . The post url is http://mastercp.openweb.co.za/api/dbg_dump.asp .Should I include some header also while posting? Thanks

public class MainActivity extends Activity {
    Button ok;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.profile);
        ok=(Button)findViewById(R.id.but_signup_login);



        ok.setOnClickListener(new OnClickListener() {


            public void onClick(View arg0) {


                System.out.println("Clicked");
        DownloadWebPageTask task = new DownloadWebPageTask();
        task.execute(new String[] { "http://mastercp.openweb.co.za/api/dbg_dump.asp" });}});
    }






    public void postData() {
        // Create a new HttpClient and Post Header
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://mastercp.openweb.co.za/api/dbg_dump.asp");

        System.out.println("Clicked again");
        try {
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(34);
            String amount ="Ashish";
            nameValuePairs.add(new BasicNameValuePair("User_Type", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Email", "[email protected]"));
            nameValuePairs.add(new BasicNameValuePair("User_Email_In", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Pass", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Mobile", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Mobile_In", amount));
            nameValuePairs.add(new BasicNameValuePair("User_ADSL", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Org", amount));
            nameValuePairs.add(new BasicNameValuePair("User_VAT", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Name", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Surname", amount));
            nameValuePairs.add(new BasicNameValuePair("User_RegNo", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Address", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Town", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Code", amount));
            nameValuePairs.add(new BasicNameValuePair("User_State", amount));
            nameValuePairs.add(new BasicNameValuePair("User_Country", amount));
            nameValuePairs.add(new BasicNameValuePair("User_ADSL", amount));
            nameValuePairs.add(new BasicNameValuePair("User_ADSL_Address", amount));
            nameValuePairs.add(new BasicNameValuePair("Payment_CC_Alt", amount));
            nameValuePairs.add(new BasicNameValuePair("Payment_Type", amount));
             nameValuePairs.add(new BasicNameValuePair("CProfile", amount));
            nameValuePairs.add(new BasicNameValuePair("COrder", amount));
            nameValuePairs.add(new BasicNameValuePair("Debit_Name", amount));
            nameValuePairs.add(new BasicNameValuePair("Debit_Bank", amount));
            nameValuePairs.add(new BasicNameValuePair("Debit_Number", amount));
            nameValuePairs.add(new BasicNameValuePair("Debit_Code", amount));
            nameValuePairs.add(new BasicNameValuePair("Debit_Type", amount));
            nameValuePairs.add(new BasicNameValuePair("TOS_Agree", amount));  
            nameValuePairs.add(new BasicNameValuePair("Code", amount));  
            nameValuePairs.add(new BasicNameValuePair("package_activation", amount));  
            nameValuePairs.add(new BasicNameValuePair("session", amount)); 
            nameValuePairs.add(new BasicNameValuePair("OnceOff", amount));  
            nameValuePairs.add(new BasicNameValuePair("submit-button", amount));  


            try {
                httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));
            } catch (UnsupportedEncodingException e) {
               System.out.println("Unsupported Exception "+e);
                e.printStackTrace();
            }

        }  catch (Exception e) {
            System.out.println("  Exception last"+e);
            // TODO Auto-generated catch block
        }
    } 




    private class DownloadWebPageTask extends AsyncTask<String, Void, String> {
        @Override
        protected String doInBackground(String... urls) {
          String response = "";
          for (String url : urls) {


             postData(); 
          }


        return response;
      }
        @Override
        protected void onPostExecute(String result) {}
}


}