title: Highcharts: Show special marker on column chart
body: <p>I want to put markers on a column chart.</p>
  
  <p>To be precise the chart is a for runs scored in each over in the game of cricket. (a sample generated graph as of now: <a href="http://img839.imageshack.us/img839/6091/screenshot20111117at124.png">http://img839.imageshack.us/img839/6091/screenshot20111117at124.png</a>)</p>
  
  <p>Now what I actually want is to show in which over the wicket fell (something like: <a href="http://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Dudley_Nourse_Graph.png/350px-Dudley_Nourse_Graph.png">http://upload.wikimedia.org/wikipedia/commons/thumb/a/a0/Dudley_Nourse_Graph.png/350px-Dudley_Nourse_Graph.png</a>), the blue dots on top of the columns.</p>
  
  <p>Is it possible to accomplish this in highcharts?
  I see a snippet of this in this chart (something like sun depicted here: <a href="http://www.highcharts.com/demo/spline-symbols">http://www.highcharts.com/demo/spline-symbols</a>).</p>