public class @ax-actionscript-book-PodcastPlayer-com-example-programmingas3-podcastplayer-URLService extends EventDispatcher
      {
          public var url:String;
          //public var rssData:String;
          public var loader:URLLoader;
          
          public function @ax-actionscript-book-PodcastPlayer-com-example-programmingas3-podcastplayer-URLService(url:String):void
          {
              this.url = url;
          }
          
          public function send():void
          {
              loader = new URLLoader();
              var request:URLRequest = new URLRequest(this.url);
              
              loader.addEventListener(Event.COMPLETE, onLoadComplete);
              loader.addEventListener(IOErrorEvent.IO_ERROR, onIOError);
              loader.addEventListener(ProgressEvent.PROGRESS, onLoadProgress);
              loader.addEventListener(SecurityErrorEvent.SECURITY_ERROR, onSecurityError);
              loader.addEventListener(HTTPStatusEvent.HTTP_STATUS, onHTTPStatus);
              
              loader.load(request);
          }
          
          public function onLoadComplete(event:Event):void
          {
              var loaded:URLLoader = event.target as URLLoader;
              if (loaded != null && loaded.data != null)
              {
                  //this.rssData = loaded.data;
                  
                  var dataEvent:DataEvent = new DataEvent(DataEvent.DATA);
                  dataEvent.data = loaded.data;
                  dispatchEvent(dataEvent);
              }
              else
              {
                  trace("No data was received.");
                  
                  var errorEvent:IOErrorEvent = new IOErrorEvent(IOErrorEvent.IO_ERROR);
                  errorEvent.text = "No data was received.";
                  dispatchEvent(errorEvent);
              }
          }
  
          public function onHTTPStatus(event:HTTPStatusEvent):void
          {
              trace("HTTPStatus: " + event.status);
              var newEvent:Event = event.clone();
              dispatchEvent(newEvent);
          }
  
          public function onLoadProgress(event:ProgressEvent):void
          {
              trace("Progress: " + event.bytesLoaded + "/" + event.bytesTotal + " = " + 100 * (event.bytesLoaded / event.bytesTotal) + "%");
              var newEvent:Event = event.clone();
              dispatchEvent(newEvent);
          }
                  
          public function onIOError(event:IOErrorEvent):void
          {
              trace("IOError: " + event.text);
              var newEvent:Event = event.clone();
              dispatchEvent(newEvent);
          }
          
          public function onSecurityError(event:SecurityErrorEvent):void
          {
              trace("SecurityError: " + event.text);
              var newEvent:Event = event.clone();
              dispatchEvent(newEvent);
          }
      }
  }