title: lockscreen on web page
body: <p>I want to create fancy lock screen on my web portal. For javascript and timer I used <a href="https://github.com/maxfierke/jquery-sessionTimeout-bootstrap" rel="nofollow">https://github.com/maxfierke/jquery-sessionTimeout-bootstrap</a> plugin. I got idea from many bootstrap admin templates like: <a href="http://webapplayers.com/inspinia_admin-v1.2/lockscreen.html" rel="nofollow">http://webapplayers.com/inspinia_admin-v1.2/lockscreen.html</a>.</p>
  
  <p>If I use only javascript, page will be displayed (redirected), but, I can easy back on previous page. Maybe I need expand my DB table with new column for detecting lock screen or enough create a cookie with some parameters.</p>
  
  <p>Any idea, what is the best way to solve it?</p>