I have found a article below,but I don't try it successful,some code below is wrong.Could anyone try it and post the right code,or other better method that embed fusioncharts in flex app? 
I want to use flex to get data from webservice and send the data to fusioncharts,what can i do? 
load a swf from outside and call its function 
Lets suppose you have a swf(Column3D.swf) and you don't have code(FLA) for it but you need to call its function(setDataXML) from Flex and need to send parameters.  
 
How it can be done through JAVASCRIPT  
 
<HTML>  
  
<HEAD>  
  
<TITLE>FusionCharts & JavaScript - Updating chart using setDataXML() Method</TITLE>  
  
<SCRIPT LANGUAGE=