String contextPath = servletRequest.getContextPath();
String imageBaseUrl = "/BirtImageServlet?imageID=";
// Register new image handler
HTMLRenderOption renderOption = new HTMLRenderOption();
renderOption.setActionHandler(new HTMLActionHandler());
HTMLServerImageHandler imageHandler = new HTMLServerImageHandler();
renderOption.setImageHandler(imageHandler);
renderOption.setImageDirectory(imageDirectory);
renderOption.setBaseImageURL(contextPath + imageBaseUrl);
renderOption.setEmbeddable(false);