anchor.diff:          registerCellInputHandlers(input)
       });
       Event.observe('add-activity-button', 'click', addActivityRow)
  +    Event.observe('add-activity-button', 'click', resetActivitiesAutocompleter)
   //    Event.observe('return-to-template', 'click', returnToTemplate)
   }
   
  
positive.code:         this.active = false;
  
          if(this.options.revertOnEsc) this.revertOnEsc()
      }
  
  }) ;
  
negative.code:     Droppables.add( $('deleteDrop'), {accept:'marker',hoverclass: 'hoverActive',onDrop:deleteEvent})
  }
  
  function resetActivitiesAutocompleter() {
      activitiesAutocompleter.reset();
      $('add-activity').name="";
      $('add-activity').value="";
  }
  
  function createAutocompleter() {
      activitiesAutocompleter = new Ajax.RevertableAutocompleter('activities-autocompleter-input','activities-autocompleter-div','<c:url value="/pages/cal/search/activities"/>',
      { method: 'get', paramName: 'searchText', callback: addAdditionalParameters, afterUpdateElement:updateActivity, revertOnEsc:true});
  }
  
  