document.getElementById('nextId').innerHTML='<p>下一篇：<a href=/news/lrjk/20090316101932.html>吃香菇对老人心血管有好处!</a></p><p>上一篇：<a href=/news/lrjk/20090316102050.html>蜂蜜老年人的长寿秘方之一</a></p>'