jquery script http://tech.it168.com/a2012/0206/1307/000001307783_all.shtml http://blog.csdn.net/lyatzhongkong/article/details/6969913 http://www.css88.com/jqapi-1.9/ http://zhidao.baidu.com/question/553009404.html http://zhidao.baidu.com/question/334751505.html