code: function () {
  		each(this.crosshairs, function (crosshair) {
  			if (crosshair) {
  				crosshair.destroy();
  			}
  		});
  
  		// Destroy and clear local variables
  		if (this.label) {
  			this.label = this.label.destroy();
  		}
  		clearTimeout(this.hideTimer);
  		clearTimeout(this.tooltipTimeout);
  	}
docs: Destroy the tooltip and its elements.