title: how to initialize fullscreen without user interaction
body: <p>Hi i'm beginner and i want to create a web-app and needs help in fullscreen when page is Load... without user interaction</p>
  
  <p>I have something like this at the click function works correctly... but i want to load function at the start page </p>
  
  <pre><code>addEventListener("click", function() 
      {
          var el = document.documentElement , rfs = el.requestFullScreen ||
          el.webkitRequestFullScreen || el.mozRequestFullScreen ;
          rfs.call(el);
      });
  </code></pre>
  
  <p>Someone help me :)</p>
  
  <p>Thank you!</p>