anchor.diff:  <script type="text/javascript">
   
     var solvedButton = $('#mark-as-solved-button');
  -  var commentOnExerciseButton = $('#comment-exercise-button');
     var addCommentExerciseButton = $('#addCommentExerciseButton');
   
     var thankYouContainer = $('#thank-you-container');
  
positive.code:     jqxhr.fail(ajaxError);
    }
  
    function createCommentOnExercise(file_id, row, editor, commenttext){
        var jqxhr = $.ajax({
            data: {
                comment: {
                    file_id: file_id,
                    row: row,
                    column: 0,
                    text: commenttext,
                    request_id: $('h4#exercise_caption').data('rfc-id')
                }
            },
            dataType: 'json',
            method: 'POST',
            url:  "/comments"
        });
        jqxhr.done(function(response){
            setAnnotations(editor, file_id);
        });
        jqxhr.fail(ajaxError);
    }
  
    function handleSidebarClick(e) {
      var target  = e.domEvent.target;
      var editor =  e.editor;
  
negative.code: 
        $.each(response, function(index, comment) {
          comment.className = 'code-ocean_comment';
        });
        session.setAnnotations(response);
      })
  