JCIFS Window Authentication in Java

Question

Currently I was using jcifs to manage the window authentication. I've got few questions:

1. The first time the user run the page and types in wrong password, when user try to key in again the password remain there. Even if I close the browser run again the password still remain there.
   How to remove the password?

2. Can I implement like after 3 times failed login attempts it will redirect user to certain page or show some message instead of show blank page.