- Dygraph.addEvent(this.mouseEventElement_, 'mousemove', function(e) {
- dygraph.mouseMove_(e);
- });
- Dygraph.addEvent(this.mouseEventElement_, 'mouseout', function(e) {
- dygraph.mouseOut_(e);
- });
+
+ this.mouseMoveHandler = function(e) {
+ dygraph.mouseMove_(e);
+ };
+ Dygraph.addEvent(this.mouseEventElement_, 'mousemove', this.mouseMoveHandler);
+
+ this.mouseOutHandler = function(e) {
+ dygraph.mouseOut_(e);
+ };
+ Dygraph.addEvent(this.mouseEventElement_, 'mouseout', this.mouseOutHandler);