combox cannot select value (such as demo/checkbox.html)

[GoogleCodeExporter]

What steps will reproduce the problem?
1. in 1.1 the  demo/checkbox.html works and you can change the value
2. in 1.1.1 you can not change the value just can see the options
3.

1.1中的的 demo/checkbox.html 可以改变选项值
1.1.1中的 demo/checkbox.html  下来之后可以看到其它选项   
但是不可选

What is the expected output? What do you see instead?


What version of the product are you using? On what operating system?


Please provide any additional information below.

Original issue reported on code.google.com by cnjoy...@gmail.com on 27 Jun 2010 at 11:47