title: onmousedown - left or right?
body: <p>First of all, I am not looking for jQuery solution, just simple pure Javascript code, inside of an element.</p>
  <p>Let's say we have following html code:</p>
  <pre><code>&lt;select onmousedown=&quot; ??? &quot;&gt;...&lt;/select&gt;
  </code></pre>
  <p>I want a simple script inside of the element to show popup message <code>alert()</code> with information which button was pushed down and what is a relative position of the element to the document <code>&lt;body&gt;</code> - something like <code>offset()</code> in jQuery.</p>