trackFormatter: function(data) { var yValue; if (formatter) { yValue = numberFormatter[formatter](data.y); return numberFormatter[formatter](data.y); } else { yValue = data.y; } return xLabels[parseInt(data.x)] + ': ' + yValue; }
labelFormatter: function(data) { if (formatter) { return numberFormatter[formatter](data.y); } else { return data.y; } }