public String Request(String cmd) {                                       
        String fromServer;
        StringBuffer ret = new StringBuffer();

        // send command to server
        System.out.println("Client.Request(): Sending \"" + cmd + "\" to server...\n");
        out.println(cmd);
        
        try {
            // wait for response from server
            while ((fromServer = in.readLine()) != null) {                                                	                                             
                System.out.println("Client.Request(): FromServer: " + fromServer + "\n");
                ret.append(fromServer);                
            }
        } catch (IOException e) {
            return e.toString();
        }                
        return ret.toString();
    }