public void UncrossPoint(XYDataSeries whichDataSeries)
		{
			if (whichDataSeries == XY1DataSeries)
			{
				_XY1DataSeries_Internal.RemoveCross();
			}
			else if (whichDataSeries == XY2DataSeries)
			{
				_XY2DataSeries_Internal.RemoveCross();
			}
			else if (whichDataSeries == XY3DataSeries)
			{
				_XY3DataSeries_Internal.RemoveCross();
			}
			else if (whichDataSeries == XY4DataSeries)
			{
				_XY4DataSeries_Internal.RemoveCross();
			}
		}
		public void CrossPoint(XYDataSeries whichDataSeries, int pointX, double pointY)
		{
			if (whichDataSeries == XY1DataSeries)
			{
				_XY1DataSeries_Internal.DrawCross(pointX, pointY);
			}
			else if (whichDataSeries == XY2DataSeries)
			{
				_XY2DataSeries_Internal.DrawCross(pointX, pointY);
			}
			else if (whichDataSeries == XY3DataSeries)
			{
				_XY3DataSeries_Internal.DrawCross(pointX, pointY);
			}
			else if (whichDataSeries == XY4DataSeries)
			{
				_XY4DataSeries_Internal.DrawCross(pointX, pointY);
			}
		}