anchor.diff:  function updateAddActivityButton() {
       addActivityRow();
       resetActivitiesAutocompleter();
  +    resetActivityType();
   }
   
   function registerHandlers() {
  
positive.code:     registerHoverTip($('delete-drop'), "Drag an activity from the grid to delete it")
  }
  
  //Event.observe(window, "dom:loaded", registerHoverTips)
  
  </script>
  
negative.code:     $('add-activity').value = "";
  }
  
  function resetActivityType() {
      $('activity-type-filter').options[0].selected=true;
  }
  
  function createAutocompleter() {
      activitiesAutocompleter = new Ajax.ResetableAutocompleter('activities-autocompleter-input', 'activities-autocompleter-div', '<c:url value="/pages/search/fragment/activities"/>',
      {
  