function get_border_properties() {
    return array("top" => array("width" => $this->__get("border_top_width"),
                                "style" => $this->__get("border_top_style"),
                                "color" => $this->__get("border_top_color")),
                 "bottom" => array("width" => $this->__get("border_bottom_width"),
                                   "style" => $this->__get("border_bottom_style"),
                                   "color" => $this->__get("border_bottom_color")),
                 "right" => array("width" => $this->__get("border_right_width"),
                                  "style" => $this->__get("border_right_style"),
                                  "color" => $this->__get("border_right_color")),
                 "left" => array("width" => $this->__get("border_left_width"),
                                 "style" => $this->__get("border_left_style"),
                                 "color" => $this->__get("border_left_color")));
  }