gwt virtual keyboard

I have created a login page and virtual keyboard using gwt designer.
When i click on show keyboard icon in login page, keyboard should come
there and if i press a key that particular key charactor or number
should appear in username field and password field.
How could i implement this using gwt?In short how could I implement a
gwt login page with virtual keyboard?

--
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.