anchor.diff:        return element;
       }
     };
  +
  +  var findOrCreateRenderElement = function(index) {
  +    if ($('#render-' + index).isPresent()) {
  +      return $('#render-' + index);
  +    } else {
  +      var element = $('<div>').attr('id', 'render-' + index);
  +      $('#render').append(element);
  +      return element;
  +    }
  +  };
  +
  +
   
     var getPanelClass = function(result) {
       if (result.stderr && !result.score) {
  
positive.code:             showStatus(msg)
              break;
        }
    };
  
    var printWebsocketOutput = function(msg) {
  
negative.code:             showCanvas();
              handleTurtlebatchCommand(msg);
              break;
          case 'render':
            renderWebsocketOutput(msg);
            break;
          case 'exit':
              killWebsocketAndContainer();
              break;
  