bug #4198 Hovering over pie chart gives fatal JS error

Signed-off-by: Madhura Jayaratne <madhura.cj@gmail.com>

1 files changed, 6 insertions, 1 deletions

diff --git a/js/chart.js b/js/chart.js
index dcd08cc2ae..fb0d9af584 100644
--- a/js/chart.js
+++ b/js/chart.js
@@ -520,7 +520,12 @@ JQPlotPieChart.prototype = new JQPlotChart();
 JQPlotPieChart.prototype.constructor = JQPlotPieChart;
 
 JQPlotPieChart.prototype.populateOptions = function (dataTable, options) {
-    var optional = {};
+    var optional = {
+        highlighter: {
+            formatString:'%s, %d',
+            useAxesFormatters: false
+        }
+    };
     var compulsory = {
         seriesDefaults : {
             renderer : $.jqplot.PieRenderer