Help with Automatic refreshing

Question

I got this graph that I can slide with my finger, Im wondering if its possible to update it automatic with this code?
//Function for sliding graph.
   protected function mouseDownHandler(event:MouseEvent):void
    lastX = event.stageX;
    systemManager.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
    systemManager.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
   protected function mouseMoveHandler(event:MouseEvent):void
    var delta:Number = (lastX - event.stageX) / chart.width * viewportMax;
    if (hAxis.minimum + delta < 0)
     hAxis.minimum = 0;
     hAxis.maximum = viewportMax;
    else if (hAxis.maximum + delta  > chart.dataProvider.length - 0)
     hAxis.maximum = chart.dataProvider.length - 0;
     hAxis.minimum = hAxis.maximum - viewportMax;
    else
     hAxis.minimum += delta;
     hAxis.maximum += delta;
    lastX = event.stageX;
   protected function mouseUpHandler(event:MouseEvent):void
    systemManager.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
    systemManager.removeEventListener(MouseEvent.MOUSE_MOVE, mouseUpHandler);

Answer 1

Here is the whole graph code, the source is the "myArray", it gets updated thru UDP.
I guess something have to be done in the "mouseMoveHandler". Tried to change different things, but it
still scolls with finger only, and does not update by itself. There should be a way to make it scroll by itself, dont you agree?
<fx:Script>
  <![CDATA[
   import flash.events.TimerEvent;
   import flash.utils.Timer;  
   import flashx.textLayout.events.ScrollEvent;  
   import mx.collections.ArrayCollection;
   import mx.events.FlexEvent;
   import mx.rpc.events.AbstractEvent;  
   public var NewValue:Object; 
   public var Value:String;
   public var myTimer:Timer;
   public var PowerNumber:Number;
   //Function for UDP graph.
   protected var lastX:Number = 0;  
   [Bindable]
   protected var viewportMax:Number = 10;
   private function creationCompleteHandler():void
    completeHandler();
    init();
   protected function completeHandler():void
    chart.dataProvider = myArray;
   protected function mouseDownHandler(event:MouseEvent):void
    lastX = event.stageX;
    systemManager.addEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
    systemManager.addEventListener(MouseEvent.MOUSE_UP, mouseUpHandler);
   protected function mouseMoveHandler(event:MouseEvent):void
    var delta:Number = (lastX - event.stageX) / chart.width * viewportMax;
    if (hAxis.minimum + delta < 0)
     hAxis.minimum = 0;
     hAxis.maximum = viewportMax;
    else if (hAxis.maximum + delta  > chart.dataProvider.length - 1)
     hAxis.maximum = chart.dataProvider.length - 1;
     hAxis.minimum = hAxis.maximum - viewportMax;
    else
     hAxis.minimum += delta;
     hAxis.maximum += delta;
    lastX = event.stageX;
   protected function mouseUpHandler(event:MouseEvent):void
    systemManager.removeEventListener(MouseEvent.MOUSE_MOVE, mouseMoveHandler);
    systemManager.removeEventListener(MouseEvent.MOUSE_MOVE, mouseUpHandler);
   public var myArray:ArrayCollection = new ArrayCollection();
   public function initTimer():void
    var myTimer:Timer = new Timer(500, 0);
    myTimer.addEventListener("timer", timerHandler);
    myTimer.start();
   //Function for UDP graph.
   public function timerHandler(event:TimerEvent):void
    var obj:Object = new Object();   
    obj.time = getTimer();   
    obj.Value = NewValue;
    myArray.addItem(obj);
   //Function for UDP graph.
   protected function applicationCompleteHandler(event:FlexEvent):void
    udpSocket = new UDPSocket();
    udpSocket.addEventListener(DatagramSocketDataEvent.DATA, udpDataHandler);
    udpSocket.bind(1000);
    udpSocket.receive();   
    initTimer();
   //Incomming UDP for graph (Tracking).
   protected function udpDataHandler(event:DatagramSocketDataEvent):void
    var Value:String = event.data.readUTFBytes(event.data.bytesAvailable);
    if(Value)
     NewValue = Value;
    else
     NewValue = 0;
  ]]>
</fx:Script>
<fx:Declarations>
  <mx:SolidColorStroke id = "s1" color="0x0000ff" weight="2"/>
</fx:Declarations>
<mx:LineChart id="chart"  x="51" y="141" width="875" height="190" paddingLeft="5" paddingRight="5"
      showDataTips="true"
      mouseDown="mouseDownHandler(event)">
  <mx:series>  
   <mx:LineSeries yField="Value" form="curve" displayName="Tracking" lineStroke="{s1}"/>  
  </mx:series>
  <mx:horizontalAxis> 
   <mx:LinearAxis id="hAxis" minimum="0" maximum="{viewportMax}"/> 
  </mx:horizontalAxis>
</mx:LineChart>
</s:Application>