title: Suddenly cannot read property DateAxisRenderer
body: <p>After some weeks, my jqPlot suddenly stopped working. </p>
  
  <p>My Chrome return error message: </p>
  
  <blockquote>
    <p>Uncaught TypeError: Cannot read property 'DateAxisRenderer' of
    undefined.</p>
  </blockquote>
  
  <p>I've never faced this problem before. Any hints, guys?</p>
  
  <pre><code>$(document).ready(function(){
      var month = &lt;?php echo $month ;?&gt;;
      var maxDay = &lt;?php echo $maxDay;?&gt;;
      var max = &lt;?php echo $max;?&gt;;
      var min = &lt;?php echo $min;?&gt;;
      var data = &lt;?php echo json_encode($all_data) ?&gt;;
      var arr = new Array(maxDay);
  
      for (var i=0; i&lt;data.length; i++) {
          arr[i] = new Array(2);
          arr[i][0] = data[i]['date'];
          arr[i][1] = data[i]['total'];
      }
      var plot1 = $.jqplot('chart2', [arr], {
  
        title:'Month ' + month ,
          axes:{
            xaxis:{
              renderer:$.jqplot.DateAxisRenderer,
              tickOptions:{
                formatString:'%b&amp;nbsp;%#d'
              },
              tickInterval : '1 days'
            },
            yaxis:{
              tickOptions:{
              formatString:'%.2f'
            },
            min:min,
            max:max
          }
        },
        highlighter: {
          show: true,
          sizeAdjust: 2
        },
        cursor: {
          show: false
        }
  
      });
  });
  </code></pre>