anchor.diff:                          </li>
                       </ul>
                   </li>
  -                <li class="treeview">
  -                    <a href="../courseInfo/${user.id}"><i class="fa fa-university"></i><span> Course Info</span></a>
  -                </li>
  +                
               </ul>
               <!-- /.sidebar-menu -->
           </section>
  
positive.code:                                             <input type="checkbox" class="cb" value="${list.todolistidx}">
                                          </c:otherwise>
                                      </c:choose>
                                      <span class="text">${list.content}</span>
  
                                      <small class="label label-danger" prettydate><i
                                              class="fa fa-clock-o"></i>${list.enddate}</small>
  
                                      <div class="tools">
                                          <i class="fa fa-edit"></i>
                                          <i class="fa fa-trash-o"></i>
                                      </div>
                                      </li>
                                  </c:forEach>
                              </ul>
                          </div>
  
negative.code:                         <i class="fa fa-ellipsis-v"></i>
                          <i class="fa fa-ellipsis-v"></i>
                        </span>
                       
                                      <c:choose>
                                          <c:when test="${list.ok=='0'}">
                                              <input type="checkbox" class="cb" checked value="${list.todolistidx}">
  