anchor.diff:    <div id="nav">
       <%= link_to 'Home', projects_path %> |
       <%= link_to 'Edit Project', edit_project_path(@project) %>
  +    <br/>
  +    <label id="last_update"></label>
     </div>
   </div>
   
  
positive.code:           newestTimestamp = lastReading[0];
            $("#reading1").html(lastReading[1]);
            $("#reading2").html(lastReading[2]);
          }
  
          if (graph == null) {
  
negative.code:     graph = new Dygraph(document.getElementById("chart"),
          data,
          {
            labels: ["x", "<%= @project.sensor1_name %>", "<%= @project.sensor2_name %>"],
            ylabel: 'Temperature (F)',
            animatedZooms: true
          });
    }
  
  