anchor.diff:  <%@taglib uri="http://java.sun.com/jsp/jstl/fmt" prefix="fmt" %>
   
   <%
  -    String mode = "outages";
  +    String mode = "alarms";
       String title = "";
       String heatmap = "foreignSources";
       String foreignSource = null;
  
positive.code:     <div id="treemap"></div>
  
      <script type="text/javascript">
  
  
          var mouseclickHandler = function (e, data) {
              var nodes = data.nodes;
  
negative.code:         });
      </script>
  </div>
  <div style="float:left;">
  
      <span class="glyphicon glyphicon-retweet" aria-hidden="true"></span>&nbsp;
  
      <%
          if ("outages".equals(mode)) {
      %>
      <a href="<%=request.getRequestURI()%>?mode=alarms&heatmap=<%=heatmap%>&category=<%=category%>&foreignSource=<%=foreignSource%>">Alarms</a> / <b>Outages</b>
      <%
          } else {
      %>
      <b>Alarms</b> / <a href="<%=request.getRequestURI()%>?mode=outages&heatmap=<%=heatmap%>&category=<%=category%>&foreignSource=<%=foreignSource%>">Outages</a>
      <%
          }
      %>
      &nbsp;<span class="glyphicon glyphicon-retweet" aria-hidden="true"></span>&nbsp;
      <%
          if ("foreignSources".equals(heatmap) || "nodesByForeignSource".equals(heatmap)) {
      %>
      <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&heatmap=categories">Categories</a> / <b>Foreign Sources</b>
      <%
          } else {
      %>
      <b>Categories</b> / <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&heatmap=foreignSources">Foreign Sources</a>
      <%
          }
      %>
  
  </div>
  
  <div style="float:right;">
  
      <%
          if ("outages".equals(mode)) {
      %>
  