String calendarID = ureq.getParameter(PARAM_ID);
fireEvent(ureq, new KalendarGUIAddEvent(calendarID, new Date()));
} else if (command.equals(CMD_TOGGLE_DISPLAY)) {
String calendarID = ureq.getParameter(PARAM_ID);
KalendarRenderWrapper calendarWrapper = findKalendarRenderWrapper(calendarID);
KalendarConfig config = calendarWrapper.getKalendarConfig();
config.setVis(!config.isVis());
CalendarManagerFactory.getInstance().getCalendarManager().saveKalendarConfigForIdentity(
config, calendarWrapper.getKalendar(), ureq);
fireEvent(ureq, Event.CHANGED_EVENT);
} else if (command.equals(CMD_CHOOSE_COLOR)) {
String calendarID = ureq.getParameter(PARAM_ID);