title: object.style.left returns nothing in javascript?
body: <p>I am unable to access the left position of an image element. Here is the <a href="http://jsfiddle.net/G9Y8w/1/" rel="nofollow">my jsFiddle</a>.
  The alert box is displaying nothing.</p>
  
  <pre><code>&lt;!DOCTYPE html&gt;
  &lt;html&gt;
  &lt;img src="pan.jpg" id="uno" width="600" /&gt;
  &lt;style&gt;
  #uno
  {
  position:relative;
  left:100px;
  }
  &lt;/style&gt;
  &lt;script&gt;
       alert(document.getElementById("uno").style.left);
  &lt;/script&gt;
  &lt;/html&gt;
  </code></pre>