title: Highcharts - Different Marker for Each Point of Area Plot
body: <p>I'm trying to have a different marker for each point in my Highcharts area plot. I want the marker to be a wind barb png (shows the average wind direction and speed for a month), which is generated by the icons.php script on-demand. Here is what I have for my data block in my series:</p>
  
  <pre><code>series:[{
    data:[
      { x: 'January', y: 3717.71, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=219.38009049774)'}},
      { x: 'February', y: 3894.63, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=215.49200799201)'}},
      { x: 'March', y: 3628.49, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=193.80027422303)'}},
      { x: 'April', y: 2901.39, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=180.85734200743)'}},
      { x: 'May', y: 1756.8, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=171.72764227642)'}},
      { x: 'June', y: 1290.4, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=191.62322274882)'}},
      { x: 'July', y: 997.85, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=187.95557570263)'}},
      { x: 'August', y: 1035.04, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=180.14449541284)'}},
      { x: 'September', y: 1650.05, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=173.00561797753)'}},
      { x: 'October', y: 3154.83, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=188.1064690027)'}},
      { x: 'November', y: 3158.45, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=192.06400742115)'}},
      { x: 'December', y: 4075.64, marker:{ symbol: 'url(http://sample.ip.address/icons.php?type=barb&amp;size=5&amp;wspd=0&amp;dir=215.48698384201)'}}]},
  ],
  </code></pre>
  
  <p>I've even tried this with the url being to a static image. I still get this same error in Firebug: </p>
  
  <pre><code>TypeError: f[a] is undefined
  </code></pre>
  
  <p>Any help is greatly appreciated!</p>