plotBandBefore.setRange(new DateTimeRange(masterChartMinDate,
new Date((long) min)));
plotBandBefore.setColor(new RGBA(0, 0, 0, 0.2f));
masterDateTimeAxis.addPlotBand(plotBandBefore);
masterDateTimeAxis.removePlotBand("mask-after");
DateTimePlotBand plotBandAfter = new DateTimePlotBand(
"mask-after");
plotBandAfter.setRange(new DateTimeRange(new Date((long) max),
masterChartMaxDate));
plotBandAfter.setColor(new RGBA(0, 0, 0, 0.2f));