public Integer addSite(Integer parentId, String siteName, Integer organId) {
Site vo = new Site();
vo.setSiteName(siteName);
if (parentId != null) vo.setParent(siteDAO.get(parentId));
Organ organVo = new Organ();
organVo.setId(organId);
vo.setOrgan(organVo);
siteDAO.persist(vo);
return vo.getId();
}
