End dating users in bulk.

Hi,

I have to end date bulk user accounts (1000+) from fnd_user table and I have got the following code

DECLARE
   CURSOR usercur
   IS
      SELECT fu.user_name
        FROM apps.fnd_user fu
       WHERE user_name = 'TESTACCOUNT';
BEGIN

   FOR myuser IN usercur
   LOOP
      fnd_user_pkg.updateuser(
         x_user_name      => myuser.user_name
       , x_owner          => 'CUST'
       , x_end_date       => SYSDATE
      );
   END LOOP;

END;

COMMIT;

that works for a single user with a user_name.

Please suggest what modifications do I need to make to that the code so that it runs recursively and end dates every user at one go.