+
+ // Replace the drawCallback function with one that also lets us track
+ // all labels (for the palette.)
+ // If the drawCallback option is not specified, use a null function.
+ var originalDraw = options["drawCallback"] || function() {};
+ options.drawCallback = function(g, isInitial) {
+ Index.palette.setSeries(g.getLabels());
+ // Call the original function, too.
+ originalDraw(g, isInitial);
+ };
+