iap problem

my code is:  if i use alertwin after **  iTransaction.SubmitL();
 nd i wait for  few second the application get the text from the server but ,if i pressed the button when alertwin show the we get app closed panic.
  pls solve why.



        RConnection iConnection;
    

         RSocketServ iSocketServ;
       iSocketServ.Connect();
       iConnection.Open(iSocketServ,KConnectionTypeDefault);

       // open the IAP communications database
      CCommsDatabase* commDB = CCommsDatabase::NewL(EDatabaseTypeIAP);
      CleanupStack::PushL(commDB);

      // initialize a view
      CCommsDbConnectionPrefTableView* commDBView =
      commDB->OpenConnectionPrefTableInRankOrderLC(ECommDbConnectionDirectionOutgoing);

      // go to the first record
      User::LeaveIfError(commDBView->GotoFirstRecord());

      // Declare a prefTableView Object.
      CCommsDbConnectionPrefTableView::TCommDbIapConnectionPref pref;

      // read the connection preferences
      commDBView->ReadConnectionPreferenceL(pref);
      TUint32 iapID = pref.iBearer.iIapId;

      // pop and destroy the IAP View
      CleanupStack::PopAndDestroy(commDBView);

      // pop and destroy the database object
      CleanupStack::PopAndDestroy(commDB);

      // Now we have the iap Id. Use it to connect for the connection.
      // Create a connection preference variable.
      TCommDbConnPref connectPref;

      // setup preferences
      connectPref.SetDialogPreference(ECommDbDialogPrefDoNotPrompt);
      //connectPref.SetDirection(ECommDbConnectionDirectionOutgoing);
   //   connectPref.SetBearerSet(ECommDbBearerGPRS);
   //   connectPref.SetIapId(iapID);

      // start a synchronous connection
      CEikonEnv::Static()->AlertWin(_L("123"));
      TInt errConnect = iConnection.Start(connectPref);
      
      CEikonEnv::Static()->AlertWin(_L("456  "));
      // associate the current socket server session and rconnection object

      RStringPool strP = iSession.StringPool();
      RHTTPConnectionInfo connInfo = iSession.ConnectionInfo();
      connInfo.SetPropertyL ( strP.StringF(HTTP::EHttpSocketServ,
      RHTTPSession::GetTable() ),
      THTTPHdrVal (iSocketServ.Handle()) );
      TInt connPtr = REINTERPRET_CAST(TInt, &(iConnection));
      connInfo.SetPropertyL ( strP.StringF(HTTP::EHttpSocketConnection,
      RHTTPSession::GetTable() ),
      THTTPHdrVal (connPtr) );


   /*   
       CApaCommandLine* cmdLine=CApaCommandLine::NewLC();
       cmdLine->SetCommandL(EApaCommandOpen);
       cmdLine->SetLibraryNameL(KOperaBrowser);

       TBuf<256> url;
       url.Copy(_L("http://www.dodo.com/a.txt"));

       cmdLine->SetDocumentNameL(url);
       RApaLsSession session;
       session.Connect();
       session.StartApp(*cmdLine);
       CleanupStack::PopAndDestroy(cmdLine); // cmdLine*/
        


      // Parse string to URI (as defined in RFC2396)
        TUriParser8 uri;
       uri.Parse(aUri);

   // Get request method string for HTTP GET
        RStringF method = iSession.StringPool().StringF(HTTP::EGET,
       RHTTPSession::GetTable());
      //   CEikonEnv::Static()->AlertWin(_L("789  "));

   // Open transaction with previous method and parsed uri. This class will
   // receive transaction events in MHFRunL and MHFRunError.
       iTransaction = iSession.OpenTransactionL(uri, *this, method);

   // Set headers for request; user agent and accepted content type
     RHTTPHeaders hdr = iTransaction.Request().GetHeaderCollection();
     SetHeaderL(hdr, HTTP::EUserAgent, KUserAgent);
     SetHeaderL(hdr, HTTP::EAccept, KAccept);
     // CEikonEnv::Static()->AlertWin(_L("988  "));
   // Submit the transaction. After this the framework will give transaction
   // events via MHFRunL and MHFRunError.
       CEikonEnv::Static()->AlertWin(_L("222  "));
      
        iTransaction.SubmitL();
      
    CEikonEnv::Static()->AlertWin(_L("777  "));

        iRunning = ETrue;
      
      
       _LIT(KConnecting,"Connecting...");
   
      iConnection.Close();
   
      iSocketServ.Close();
         
   

      // CleanupStack::PopAndDestroy(1);