Bug Description: Not able to navigate using tab key for below mentioned scenario,this is very inconvenient for user when user is used to use mouse.

Steps to reproduce:
1.Install jre1.6.0(b29)
2.Import notepad.jnlp from (http://java.sun.com/products/javawebstart/apps/notepad.jnlp)
3.Launch JavaApplicationCacheViewer.
4.Using keyboard Click "Launch Online" button
5.Notepad application will popup close the application using Alt + SpaceBar + C
6.Now the focus will be in "Launch Offline" button which is disabled component.

now user don't have any option to navigate within the "JavaApplicationCacheViewer"
which stops user to use JavaApplicationCacheViewer using keyboard.

###@###.### 2005-03-29 14:48:49 GMT