I am creating a Drag Node diagram. Instead of entering node location etc.. into the xml I want to be able to perform the Add Node using the browser and saving the changes. I tried using the example in the documentation under the section "Getting data using Javascript" but was unsuccessful displaying the xml. Here is my html : 
  
<html> 
	<head> 
    	<script language="JavaScript" src="../FusionCharts/FusionCharts.js"></script> 
	</head> 
<body bgcolor="#ffffff"> 
	<div id="chartdiv" align="center">The chart will appear within this DIV. This text will be replaced by the chart.</div> 
	<script type="text/javascript"> 
    	var myChart = new FusionCharts("../FusionCharts/DragNode.swf", "myChartId", "1100", "700", "0", "1"); 
    	myChart.setXMLUrl("roadmap_creation.xml"); 
    	myChart.render("chartdiv"); 
  
        	function getChartXml(){ 
            	//Get chart from its ID 
            	var charRef = FusionCharts("myChartId"); 
            	var xmlRtn = charRef.getXMLData(); 
            	alert(xmlRtn); 
        	} 
	</script> 
	<center><input type='button' value='Retrieves updated XML' onClick='javascript:getChartXml();'></center> 
</body> 
</html> 
  
example of my xml: 
  
<chart caption='LT2 Roadmap' palette='2' xAxisMinValue='0' xAxisMaxValue='100' yAxisMinValue='0' yAxisMaxValue='100' is3D='1' showFormBtn='1' formAction='process.jsp' viewMode='0' numDivLines='3' divLineColor='000000' divLineThickness='3' alternateHGridColor='A9A9A9' canvasBgColor='D3D3D3' rotateYAxisName='0'> 
   <dataset> 
   </dataset> 
   <connectors color='FF0000' stdThickness='5'> 
   </connectors> 
   <categories> 
  	<category x='1' label='Nov 10' lineDashed='1' showVerticalLine='0' showLabel='1' toolText='Nov 10'/>  
  	<category x='16' label='Dec 10' lineDashed='1' showVerticalLine='1' showLabel='1' toolText='Dec 10'/>  
  	<category x='32' label='Jan 11' lineDashed='1' showVerticalLine='1' showLabel='1' toolText='Jan 11'/>  
  	<category x='48' label='Feb 11' lineDashed='1' showVerticalLine='1' showLabel='1' toolText='Feb 11'/>  
  	<category x='64' label='Mar 11' lineDashed='1' showVerticalLine='1' showLabel='1' toolText='Mar 11'/>  
  	<category x='80' label='Apr 11' lineDashed='1' showVerticalLine='1' showLabel='1' toolText='Apr 11'/>  
  	<category x='99' label='May 10' lineDashed='1' showVerticalLine='0' showLabel='1' toolText='May 10'/>  
   </categories> 
   <TrendLines> 
  	<line startValue='87' color='000000' displayvalue='LT2 Component' isTrendZone='1'/> 
  	<line startValue='62' color='000000' displayvalue='CTIA' isTrendZone='1'/> 
  	<line startValue='37' color='000000' displayvalue='L-TESS' isTrendZone='1'/> 
  	<line startValue='12' color='000000' displayvalue='CTC-IS' isTrendZone='1'/> 
   </TrendLines> 
</chart>  
  
  
  
The alert box is empty. Any help would be appreciated.