String username = "username_here";
  String password = "password_here";
  String posterous_url = "url_string_here";
  String read_data = "";

  void setup() {
      try {
        URLAuthReader.authenticated_http_request(posterous_url, username, password);
        read_data = URLAuthReader.read_http_request();
        println(read_data);
      }

      catch (Exception e) {
        println("error reading data from the web");
      }
  }

  void draw() {
  }