从FusionCharts导出图像时缺少什么拼图？

<script type=\"text/javascript\" src=\"FusionCharts/FusionCharts.js\"></script>
<script type=\"text/javascript\" src=\"FusionCharts/FusionChartsExportComponent.js\"></script>

<div class=\"portlet\" id=\"recent-portfolio-trends\">
<div title=\"View graphs and charts of your portfolio.\" class=\"portlet-header\">Recent Portfolio Trends</div>
<div class=\"portlet-content\">
<!-- Trends -->
<span id=\"Trends-OS\">FusionCharts will load here!</span>
<span id=\"Trends-Vol\">FusionCharts will load here!</span>
<div id=\"fcexpDiv\">FusionCharts Export Handler Component</div>
<div id=\"fcexpDiv2\">FusionCharts Export Handler Component 2</div>
<script type=\"text/javascript\">
    var myChart = new FusionCharts( \"FusionCharts/MSColumn2D.swf\", \"column\", \"350\", \"220\", \"0\", \"1\" );
        myChart.setXMLUrl(\"FusionCharts/trends-outstandings.xml\");
        myChart.render(\"Trends-OS\");

    var myExportComponent = new FusionChartsExportObject(\"fcExporter1\", \"FusionCharts/FCExporter.swf\");
    myExportComponent.debugMode = true;
    myExportComponent.exportAttributes.exportAtClient = \'1\';
    myExportComponent.exportFilename = \"Outstanding\";
    myExportComponent.render(\"fcexpDiv\");
</script>

<script type=\"text/javascript\">
    var myChart = new FusionCharts( \"FusionCharts/MSCombi2D.swf\", \"column\", \"350\", \"220\", \"0\", \"1\" );
        myChart.setXMLUrl(\"FusionCharts/trends-volume.xml\");
        myChart.render(\"Trends-Vol\");

    var myExportComponent2 = new FusionChartsExportObject(\"fcExporter2\", \"FusionCharts/FCExporter.swf\");
    myExportComponent2.debugMode = true;
    myExportComponent2.exportAttributes.exportAtClient = \'1\';
    myExportComponent.exportFilename = \"Volume\";
    myExportComponent2.render(\"fcexpDiv2\");
</script>