Æliens

    <mx:Script>
      <![CDATA[
      import flash.events.MouseEvent;
     
      [Bindable] public var config:String = "config.xml";
      private var xml:XML;
      private var urlLoader:URLLoader = new URLLoader();
      [Bindable] public var hello:String = "hello (default) world";
      [Bindable] public var message:String = "(default) world";
      [Bindable] public var button:String = "(default) click me!";
  

     private function init():void {
      config = Application.application.parameters.config;
      urlLoader.addEventListener(Event.COMPLETE,loaded);
      urlLoader.load(new  URLRequest(config));
     }
  

  
      private function loaded(e:Event):void{
      xml =  new XML(e.target.data);
     button = xml..button.@text;
     message = xml..button.@panel;
     hello = xml..button;
      //trace(xml);
      }
  

      private function handler ( event:MouseEvent ):void
      {
        field.text = hello;
      }
      ]]>
    </mx:Script>
  

    
    <mx:Panel 
      title="{message}" horizontalAlign="center"
      paddingTop="10" paddingBottom="10" paddingLeft="10" paddingRight="10" 
    >
      <mx:Label id="field" width="180" fontWeight="bold" fontSize="24"/>
      <mx:Button label="{button}" click="handler(event);" />
    </mx:Panel>
  </mx:Application>