chart1O.getSeriesDefaults().setRenderer("$.jqplot.BarRenderer");
chart1O.getSeriesDefaults().setRendererOptions(
new PlotBarRendererOptions().setBarPadding(10d).setBarMargin(10d));
chart1O.getLegend().setShow(true).setLocation(PlotLegendLocation.nw);
chart1O.getAxes().getXaxis().setRenderer("$.jqplot.CategoryAxisRenderer")
.setRendererOptions(new PlotAxisRendererOptions().setSortMergedLabels(true));
chart1O.getAxes().getYaxis().setMin(0).setMax(20).setNumberTicks(6);
add(chart1);
}