title: how to : limit xaxis labels in highcharts to prevent overlap
body: <p>My data series points look like this in firebug:</p>
  
  <pre><code>
  l false 
  r true  
  x 1339214400000 //from a mysql datetime
  y 0
  </code></pre>
  
  <p>How do I define my xaxis so it will only show as many labels as it can without overlapping?</p>
  
  <p>I've tried tickInterval, tickPixelInterval and dateTimeLabelFormats but nothing is working so far.</p>
  
  <p>Currently I define my xaxis like so: <pre><code><br>
  xAxis: {
       labels: {
        formatter: function() {
          var date = new Date(this.value);<br>
          return Highcharts.dateFormat('%b %d ', date);
            }
          }<br>
      } 
  </code></pre></p>
  
  <p>Thanks</p>