Wordpress中的谷歌图表

我想在Wordpress页面中显示谷歌图形。

我在这里了解到Wordpress似乎可以使用Javascript。

所以我创建了一个包含基本代码的页面（这是GCharts的例子）。我的页面看起来像：

    <!--Load the AJAX API-->
<script type="text/javascript" src="https://www.google.com/jsapi"></script>
<script type="text/javascript">
  // Load the Visualization API and the piechart package.
  google.load('visualization', '1.0', {'packages':['corechart']});
  // Set a callback to run when the Google Visualization API is loaded.
  google.setOnLoadCallback(drawChart);
  // Callback that creates and populates a data table,
  // instantiates the pie chart, passes in the data and
  // draws it.
  function drawChart() {
    // Create the data table.
    var data = new google.visualization.DataTable();
    data.addColumn('string', 'Topping');
    data.addColumn('number', 'Slices');
    data.addRows([
      ['Mushrooms', 3],
      ['Onions', 1],
      ['Olives', 1],
      ['Zucchini', 1],
      ['Pepperoni', 2]
    ]);
    // Set chart options
    var options = {'title':'How Much Pizza I Ate Last Night',
                   'width':400,
                   'height':300};
    // Instantiate and draw our chart, passing in some options.
    var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
    chart.draw(data, options);
  }
</script>
 <div id="chart_div"></div>

不幸的是，我的网站上没有显示任何内容。

有人知道发生了什么事吗？

感谢

编辑：

我发现<[CDATA[由Wordpress添加的标签。在我的代码中，这个标签可能被一个"]"字符打断，这会导致问题。

这是萤火虫信息：

syntax error

google.setOnLoadCallback(drawChart);</p>
?page_id=22 (line 88, col 43)

我注意到，当我在页面中点击"更新"时，代码变为：

<script type="text/javascript">// <![CDATA[
          // Load the Visualization API and the piechart package.
          google.load('visualization', '1.0', {'packages':['corechart']});
          // Set a callback to run when the Google Visualization API is loaded.
          google.setOnLoadCallback(drawChart);
          // Callback that creates and populates a data table,
          // instantiates the pie chart, passes in the data and
          // draws it.
          function drawChart() {
            // Create the data table.
            var data = new google.visualization.DataTable();
            data.addColumn('string', 'Topping');
            data.addColumn('number', 'Slices');
            data.addRows([
              ['Mushrooms', 3],
              ['Onions', 1],
              ['Olives', 1],
              ['Zucchini', 1],
              ['Pepperoni', 2]
            ]);
            // Set chart options
            var options = {'title':'How Much Pizza I Ate Last Night',
                           'width':400,
                           'height':300};
            // Instantiate and draw our chart, passing in some options.
            var chart = new google.visualization.PieChart(document.getElementById('chart_div'));
            chart.draw(data, options);
          }
// ]]></script>