public Object getFreemarkerModels(ValueStack valueStack,
HttpServletRequest httpServletRequest,
HttpServletResponse httpServletResponse) {
Map<String, TagModel> models = new HashMap<String, TagModel>(2);
models.put(HEAD_TAG_NAME, new HeadModel(valueStack, httpServletRequest,
httpServletResponse));
models.put(JSCALENDAR_TAG_NAME, new JSCalendarModel(valueStack,
httpServletRequest, httpServletResponse));
return models;