How to make parent window read only and background color to gray when dialogbox open

Hi All,

How to make parent window read only and background color to gray when
dialogbox open.
like swing dialog model.

appreciate your help

Thanks
Dayananda B V

--
You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group.
To post to this group, send email to google-web-toolkit@googlegroups.com.
To unsubscribe from this group, send email to google-web-toolkit+unsubscribe@googlegroups.com.
For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.