title: Login from outer page
body: <p>I have two websites. I use JSF 2.0 with Primefaces..
  The first website (www.mysiteone.com) has a login page (username + password)..
  I have to login to the first website (www.mysiteone.com) from the second website (www.mysitetwo.com)..
  How can I do that?</p>