anchor.diff:    <form target="_self" method="post" action="/v1/interactive">
       <!-- <select name="task" id="task_name"> -->
       Task: <select name="task" id="task_name" onchange="get_task_data();">
  +
         <% @task_names.each do |task_name| %>
           <%
             # Create the task
  
positive.code:   <script type="text/javascript">
  
        function get_task_data(){
          url = document.URL.concat("/tasks.json");
          var xmlhttp = new XMLHttpRequest();
          xmlhttp.onreadystatechange = function() {
              if (xmlhttp.readyState == 4 && xmlhttp.status == 200) {
                  var hash = JSON.parse(xmlhttp.responseText);
                  //alert(xmlhttp.responseText);
                  parse_tasks(hash);
              }
          }
          xmlhttp.open("GET", url, true);
  
negative.code:           <% end %>
            ><%= task_name %>
          </option>
  
      <% end %>
      </select><br/>
  
  