title: When to use a lightbox effect?
body: <p>We've all seen the popular lightbox effects on the web (e.g. <a href="http://leandrovieira.com/projects/jquery/lightbox/" rel="nofollow noreferrer">JQuery Lightbox</a> and <a href="http://www.shadowbox-js.com/" rel="nofollow noreferrer">Shadowbox</a>). Yesterday I got into a discussion with a client who is completely enamored with lightboxes and wants to use them every time a form is submitted including:</p>
  
  <ul>
  <li>Login forms - click the login button and the lightbox appears with the user name and password fields</li>
  <li>Customer Inquiry forms - Lightbox appears with a "thank you" after form submission</li>
  <li>Registration forms - Lightbox appears with a "thank you" after form submission</li>
  </ul>
  
  <p>I want to know when people think lightboxes should and should not be used and why.</p>