I am using graphael to draw barcharts for my data, and couldn't figure out how to give the bar charts a label.
var r = Raphael(element);
r.hbarchart(10, 20, 500, 220, barData, {colors:colors, type:'square'}).hover(fin, fout);
Call label
on your chart object.
var barChart = r.g.barchart(0, 0, 200, 200, [3,2,1]);
barChart.label(['a','b','c']);