anchor.diff:                  addEditor(textareaId);
               }
               var i = 0;
  +
  +            //navigator update
  +
  +            var nav_ = $('.navigator');
  +            nav_.find('li.sec_nav').addClass('detach');
  +
               $(this).find('p').each(function (el) {
  +                var sec_id = $(this).attr('data-section_id');
                   var id = $(this).find('textarea').attr('id');
                   var seq_id = id.replace(/paragraphs_attributes.*/, 'seq');
                   $('#' + seq_id).val(i++)
  +
  +                //navigator update
  +                var list_ = nav_.find('li.sec_nav[data-section_id='+sec_id+']').detach();
  +                list_.removeClass('detach');
  +                var last_ = nav_.find('li.sec_nav').not('.detach').last();
  +                if (last_.length > 0) {
  +                    last_.after(list_);
  +                }
  +                else {
  +                    nav_.prepend(list_);
  +                }
               });
           }
       });
  
positive.code:     function removeSolutionSection(el, hide) {
          if (confirm('<%=j t('pages.proposals.edit.confirm_paragraph_deletion')%>')) {
              var section_ = $(el).parent().parent();
              var solution_id = $(el).attr('data-solution_id');
              var section_id = $(el).attr('data-section_id');
              if (hide) {
                  $('input[name="proposal\[solutions_attributes\]\[' + solution_id + '\]\[sections_attributes\]\[' + section_id + '\]\[_destroy\]"]').val(1);
  
negative.code:                     section_.remove();
                  });
              }
  
              //navigator update
              //var solution_id = $(this).attr('data-solution_id');
              //var nav_ = $('li[data-solution_id='+solution_id+'] .sub_navigator');
              //nav_.find('li[data-section_id='+section_id+']').remove();
          }
      }
  
  