code: function(e) {
          e.preventDefault();
  
          var options = this.options;
  
          this.element.reveal().positionTo(options.position, e, {
              left: options.xOffset,
              top: options.yOffset
          }, true);
      }
docs: Event handler for positioning the tooltip by the mouse.
  
  @private
  @param {jQuery.Event} e