title: Detect drop down openes
body: <p>Is there any way (in plain JS or jQuery) to detetect exactly that moment, a drop down (select-tag) opens? To clarify more, a small example:</p>
  
  <p>If you click 5 times on a select, the following happens:</p>
  
  <pre><code>drop down opens   &gt; Event should fire
  drop down closes
  drop down opens   &gt; Event should fire
  drop down closes
  drop down opens   &gt; Event should fire
  </code></pre>
  
  <p>So far, I just can find events for the click/focus in/focus out.</p>