TextField focus on UIAlertView

Question

Hello,

I have a subclass of UIAlertView with 2 UITextField for login / password.

My problem is that when I have finished to type my login and change the focus to the password field, there is a cursor on the login field and on the password field, but the focus is on the password field, so my question is, how can I make the cursor disappear on the login field ?

Thanks for your help.