http://www.jb51.net/article/29890.htm
http://blog.csdn.net/wlchn/article/details/50318653
http://blog.csdn.net/u013066244/article/details/51954198
http://www.jb51.net/article/96446.htm
http://haoningabc.iteye.com/blog/1593640
http://blog.csdn.net/u013066244/article/details/51954198
http://www.oschina.net/code/snippet_203508_7090
http://www.oschina.net/code/snippet_203508_7090
http://rubaxa.github.io/Sortable/
