function GetItemEditForm () {
      $id = $this->urlParams['ID'];
      $CoachingItem = DataObject::get_by_id('CoachingItem', $id);
      $itemStatus= $CoachingItem->Status;
      
      if ($itemStatus== 'Define') {
         
         $fields = new FieldSet(
            new HiddenField('MemberID','', $MemberID),
            new HiddenField('Status','', 'Define'),
            new HiddenField('ID',''),
            new TextField("Title", "My challenge"),            
            new TextAreaField("DefineGoal", "My goal, incl. time frames", '4', '')
         );
      }
      
      if ($section == 'Plan') { $fields = new FieldSet();$validator = new RequiredFields(); }
      if ($section == 'Implement') { $fields = new FieldSet();$validator = new RequiredFields(); }
      if ($section == 'Review') { $fields = new FieldSet();$validator = new RequiredFields(); }
      
      
      $actions = new FieldSet(new FormAction('SaveItemEditForm', 'Save') );
      
      $form = new Form($this, "GetItemEditForm", $fields, $actions);
      
      // load in existing content into the form
      $CoachingItem = DataObject::get_by_id('CoachingItem', $id);
      $form->loadDataFrom($CoachingItem);
      
      return $form;
      
   }
   
   function SaveItemEditForm($data, $form) {
      $item = DataObject::get_by_id('CoachingItem', $data['ID']); // loads existing item      
      $form->saveInto($item);
      $item->write();
   }