fix a bug where autofill fills the login information for you and then because the button is disabled, you can't login. so check to make sure the fields are empty before disabling the button.
fix a bug where autofill fills the login information for you and then because the button is disabled,
you can't login. so check to make sure the fields are empty before disabling the button.

git-svn-id: 60dcf9651b07bc729a3db0984941a1a33fd6e0f2@806 68df8246-1725-11de-bcda-2bb9902f8029

msoftware/subetha,msoftware/subetha,voodoodyne/subetha,voodoodyne/subetha,voodoodyne/subetha,voodoodyne/subetha,msoftware/subetha,msoftware/subetha