stfairy/oj — pull request #54 by 5lipper (2012-12-31 13:16:08+00:00)
Title: #fix 48

使用时无法显示为button形式，参考http://stackoverflow.com/a/13666752
添加hidden字段

![snapshot2](https://f.cloud.github.com/assets/2444104/36555/30534e46-534c-11e2-8ea0-6d9b32fd96c2.png)