anchor.diff:      return holder;
     };
   
  -  //-----------------------------------------
  +  // - - - - - - - - - - - - - - - - - - - - - - - -
   
     var showFile = function(filenameId) {
       var filename =  $('#radio_' + filenameId);
       filename.click();
       filename.scrollIntoView({ direction: 'vertical' });
     };
  +
  +  // - - - - - - - - - - - - - - - - - - - - - - - -
   
     var show = function(tag) {
       // preserve diff on/off state
  
positive.code:       }
      });
    };
  
    var forkFailedDialog = function(reason) {
      var message =
  
negative.code:     });
    };
  
    // - - - - - - - - - - - - - - - - - - - - - - - -
  
    var deleteAllCurrentFiles = function() {
      $.each(cd.filenames(), function(_, filename) {
  