title: Catch showing scrollbar event
body: <p>I have a fluid div with relative positioning. Inside this div I have a timeline which consists of several labels indicating time. When scrollbar appears I need to refresh the positioning of  timeline. But the only event I can think of is:</p>
  
  <pre><code>$(window).resize(function(event) {
      ...
  });
  </code></pre>
  
  <p>and it doesn't fire. It fires only if I press, for example, f12 in chrome in order to open development tools. But if I get scrollbar in natural way (because a lot of content) I can't figure out how to catch this event</p>