Hi, i tried your code and it didn't display anything. then i tried to give any available XML Source and it displayed. i dont know why your code doesn't work. 
  
  
  
this is the code : 
  
 
  
            var chart={ 
  
                    animation:"1", 
  
                    caption:"JSON Data", 
  
  
  
					categories:{ 
  
                        category:[ 
  
                            {label:"FOOOO"}, 
  
                            {label:"Booooooo"} 
  
                        ] 
  
                    }, 
  
  
  
					dataset:[{             
  
                        seriesName:"Product 1", 
  
                        set:[ 
  
                            { value:"11112"}, 
  
                            {value:"12224"} 
  
                          ] 
  
						}, 
  
  
  
                        {             
  
                        set:[ 
  
                            { value:"12311"}, 
  
                            {value:"14123"} 
  
                        ], 
  
                        seriesName:"Product 2"} 
  
                    ], 
  
  
  
					trendlines:{ 
  
                        line:[ 
  
                            {startValue:6,color:"FFFF00"}, 
  
                            {startValue:10,color:"ff0000",endvalue:"15",isTrendZone:true} 
  
                        ] 
  
                    }, 
  
  
  
					subCaption:"Using FusionCharts.js" 
  
  
  
            }; 
  
  
  
       var chart1 = new FusionCharts("../../Charts/FCF_MSColumn3D.swf", "ChId1", "450", "350", "0", "0"); 
  
  
  
       chart1.setDataJSON(chart); 
  
       //chart1.setDataURL("../FCDashboard/Dashboard/Data/ProductSales.xml");  
  
       chart1.render("chart1div"); 
  
  
  
     
  
  
  
  
  
and here its few html code that i saw on Firebug 1.4.0b4 
  
  
  
 
  
 
  
 
  
  
  
  
  
  
  
I tested on Firefox Mozilla 3.5 
  
  
  
Thanks.. 
  
  
  
----Khd----