把 JavaScript 當作 temporary data pool (AS3 和 AS2 溝通)

將 SWF9(from Flex2)收到的 Flashvars 變數, 傳給 JS
SWF8 需要時或被載入後再由 JS 取出
SWF9: AS3

private var paramObj:Object;
private function init():void{
 paramObj = Application.application.parameters;
 ExternalInterface.call('setMyVars', paramObj);
}

JavaScript:

var myVars;
function setMyVars(v){
 myVars = v;
 /*
 var s='';
 for(var i in v){
  s+= i+' : '+v[i]+'\n';
 }
 alert(s);
 */
}
function getMyVars(){
 return myVars;
}

SWF8: AS2

import flash.external.ExternalInterface;
var myVars = ExternalInterface.call('getMyVars');

JavaScript 的 alert() 有時也是個很好的除錯工具