title: jQuery/javascript - Input fields (user,pass) just like twitter's login?
body: <p>How can I achieve the same effect like twitter's <a href="https://twitter.com/" rel="nofollow">log-in form</a> (the top on the right) - when you click on the username/pass the value "username" stays there until you enter text? Also it's a bit dimmed.</p>
  
  <p>Thank you!</p>