title: Highcharts, highlight point, without using click event?
body: <p>I need to highlight a column in my bar chart.
  I found this example <a href="http://jsfiddle.net/shawson/CkkbF/8/" rel="nofollow">http://jsfiddle.net/shawson/CkkbF/8/</a></p>
  
  <p>They're using <code>this.update({ color: '#f00' }, true, false)
  </code> in the click event.</p>
  
  <p>My question is, how do I get <code>this</code> so I can change the color, without a click event? What is <code>this</code>?</p>