Problem with Calculated Element

I have added a node to my web dynpro. The purpose of this node is to hold a switch that I toggle based on the date range of the data being shown. I've missed something as the element is ALWAYS set to the current week. Where did I go wrong?

  public static void wdDoModifyView(IPrivateDetailView wdThis, IPrivateDetailView.IContextNode wdContext, com.sap.tc.webdynpro.progmodel.api.IWDView view, boolean firstTime)
  {
    //@@begin wdDoModifyView
    if (firstTime)
    {
		ICalculatedValuesElement elem = wdContext.createCalculatedValuesElement();
		wdContext.nodeCalculatedValues().bind(elem);
		elem.setWeekType(WeekToProcess.CURRENT_WEEK);	
    }
    BuildView(wdContext.currentCalculatedValuesElement().getWeekType(), wdThis, wdContext, view);
    IWDMessageManager msgMgr = wdThis.wdGetAPI().getComponent().getMessageManager();
    java.util.Date mDate = new java.util.Date();
    msgMgr.reportWarning("Do Modify View " + mDate + " Date type " + String.valueOf(wdContext.currentCalculatedValuesElement().getWeekType()));
    //@@end
  }

  //@@begin javadoc:onActionPriorWeek(ServerEvent)
  /** Declared validating event handler. */
  //@@end
  public void onActionPriorWeek(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
  {
    //@@begin onActionPriorWeek(ServerEvent)
	wdContext.currentCalculatedValuesElement().setWeekType(WeekToProcess.PRIOR_WEEK);
	IWDMessageManager msgMgr = wdThis.wdGetAPI().getComponent().getMessageManager();
	java.util.Date mDate = new java.util.Date();
	msgMgr.reportWarning("Prior Week " + mDate + " calc value=" + String.valueOf(wdContext.currentCalculatedValuesElement().getWeekType()) );
	wdContext.currentCalculatedValuesElement().setWeekType(WeekToProcess.CURRENT_WEEK);
	msgMgr.reportWarning("Prior Week " + mDate + " calc value=" + String.valueOf(wdContext.currentCalculatedValuesElement().getWeekType()) );

	GregorianCalendar priorWeekDate = new GregorianCalendar();
	priorWeekDate.setTime(new java.util.Date());
	priorWeekDate.add(GregorianCalendar.DATE,-7);
	wdThis.wdGetEmployeeTimeVerificatioinCustController().getEmployeeTimeData(priorWeekDate.getTime());
    //@@end
  }

  //@@begin javadoc:onActionCurrentWeek(ServerEvent)
  /** Declared validating event handler. */
  //@@end
  public void onActionCurrentWeek(com.sap.tc.webdynpro.progmodel.api.IWDCustomEvent wdEvent )
  {
    //@@begin onActionCurrentWeek(ServerEvent)
	wdContext.currentCalculatedValuesElement().setWeekType(WeekToProcess.CURRENT_WEEK);    
	IWDMessageManager msgMgr = wdThis.wdGetAPI().getComponent().getMessageManager();
	java.util.Date mDate = new java.util.Date();
	msgMgr.reportWarning("Current Week "+ mDate);
	wdThis.wdGetEmployeeTimeVerificatioinCustController().getEmployeeTimeData(new java.util.Date());
    //BuildView(WeekToProcess.CURRENT_WEEK, wdThis, wdContext, view);
  //  wdThis.wdFirePlugDetailViewOut();
   
    //@@end
  }

   //@@begin others
	private static void BuildView(short weekToProcess,IPrivateDetailView wdThis, IPrivateDetailView.IContextNode wdContext, com.sap.tc.webdynpro.progmodel.api.IWDView view)
	{
		IWDMessageManager msgMgr = wdThis.wdGetAPI().getComponent().getMessageManager();
		java.util.Date mDate = new java.util.Date();
	msgMgr.reportWarning("BuildView " + mDate);
	if (wdContext.nodeCalculatedValues().currentCalculatedValuesElement().getWeekType() == WeekToProcess.CURRENT_WEEK)
		{
			msgMgr.reportWarning("Current Week Type");
			IWDButton currentWeekButton = (IWDButton) view.getElement("CurrentWeek");
			IWDButton priorWeekButton = (IWDButton) view.getElement("PriorWeek");
			currentWeekButton.setEnabled(false);
			priorWeekButton.setEnabled(true);
			
		}
		else
		{
			msgMgr.reportWarning("Prior Week Type");
			IWDButton currentWeekButton = (IWDButton) view.getElement("CurrentWeek");
			IWDButton priorWeekButton = (IWDButton) view.getElement("PriorWeek");
			currentWeekButton.setEnabled(true);
			priorWeekButton.setEnabled(false);
		}
		IWDButton verifyButton = (IWDButton) view.getElement("Verify_0");
		verifyButton.setEnabled(false);
                           .... other code
}

Regards,

Diane