title: ajax loading into the jqPlot
body: <p>I need to make a chart using a jqPlot with data array like</p>
  
  <pre><code>[[2010-06-30 18:40:11, 18], [2010-06-30 18:42:17, 25]...]
  </code></pre>
  
  <p>it works great with the official example for "dateAxisRenderer plugin"</p>
  
  <p>but now i need to make ajax-loaded chart. it seems to me that "AJAX JSON Data Renderer" method can't use dates as a "x" data source and only can take "y" values from simple [y1,y2,y3] array. how can i make him to take both coords from my array - date for "x" and number for "y"?
  JSON example:</p>
  
  <pre><code>$(document).ready(function(){
  var ajaxDataRenderer = function(url, plot, options) {
  var ret = null;
  $.ajax({
    async: false,
    url: url,
    dataType:"json",
    success: function(data) {
      ret = data;
    }}
  );
  return ret;
  };
  
  var jsonurl = "jsondata.php";
  
  var plot2 = $.jqplot('chart2', jsonurl,{
    title: "AJAX JSON Data Renderer",
    dataRenderer: ajaxDataRenderer,
    dataRendererOptions: {
      unusedOptionalUrl: jsonurl
    }
    });
  });
  </code></pre>
  
  <p>thanks.</p>