title: update yiiwheels highchart via javascript
body: <p>I'm using highchart widget from yiiwheels (extension for Yii framework):</p>
  
  <pre><code>&lt;?php $this-&gt;widget('yiiwheels.widgets.highcharts.WhHighCharts',array(
  'pluginOptions' =&gt; array(
              'title' =&gt; array('text' =&gt; 'Fruit Consumption'),
              'xAxis' =&gt; array('categories' =&gt; array('Apples', 'Bananas', 'Oranges')),
              'yAxis' =&gt; array('title' =&gt; array('text' =&gt; 'Fruit eaten')),
              'series' =&gt; array(
                  array('name' =&gt; 'Jane', 'data' =&gt; array(1, 0, 4)),
                  array('name' =&gt; 'John', 'data' =&gt; array(5, 7, 3))
              )
          )
      ));?&gt;
  echo TbHtml::button('Refresh Chart', array('id'=&gt;'refreshButton')); ?&gt;
  
  &lt;script type="text/javascript"&gt;
      $('#refreshButton').click(function() {
          var chart = $('#container').highcharts(); // THIS IS NOT WORKING, HELP!!!
          chart.series[0].setData([129.2, 144.0, 176.0, 135.6, 148.5] ); // sample data
  });
  &lt;/script&gt;
  </code></pre>
  
  <p>This works well if I use native highcharts.js from highcharts.com
  But like I said, I use yiiwheels's highcharts widget.
  How can I fix this, how to refer my chart from javascript/jquery?
  Thanks</p>