anchor.diff:                      <%
                           if ("outages".equals(mode)) {
                       %>
  -                    <a href="<%=request.getRequestURI()%>?mode=alarms&heatmap=<%=heatmap%>&category=<%=category%>&foreignSource=<%=foreignSource%>&monitoredService=<%=monitoredService%>">Alarms</a> / <b>Outages</b>
  +                    <a href="<%=request.getRequestURI()%>?mode=alarms&amp;heatmap=<%=heatmap%>&amp;category=<%=category%>&amp;foreignSource=<%=foreignSource%>&amp;monitoredService=<%=monitoredService%>">Alarms</a> / <b>Outages</b>
                       <%
                       } else {
                       %>
  -                    <b>Alarms</b> / <a href="<%=request.getRequestURI()%>?mode=outages&heatmap=<%=heatmap%>&category=<%=category%>&foreignSource=<%=foreignSource%>&monitoredService=<%=monitoredService%>">Outages</a>
  +                    <b>Alarms</b> / <a href="<%=request.getRequestURI()%>?mode=outages&amp;heatmap=<%=heatmap%>&amp;category=<%=category%>&amp;foreignSource=<%=foreignSource%>&amp;monitoredService=<%=monitoredService%>">Outages</a>
                       <%
                           }
                       %>
  
positive.code: 
  <div id="heatmap-box" class="panel panel-default">
      <div class="panel-heading">
          <h3 class="panel-title"><a href="heatmap/index.jsp?mode=<%=mode%>&heatmap=<%=heatmap%>&foreignSource=<%=foreignSource%>&category=<%=category%>&monitoredService=<%=monitoredService%>"><%=title%>
          </a></h3>
      </div>
  
  
negative.code:                     <%
                          if ("foreignSources".equals(heatmap) || "nodesByForeignSource".equals(heatmap)) {
                      %>
                      <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&amp;heatmap=categories">Categories</a> / <b>Foreign Sources</b> / <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&amp;heatmap=monitoredServices">Services</a>
                      <%
                      } else {
                          if ("categories".equals(heatmap) ||"nodesByCategory".equals(heatmap)) {
                      %>
                      <b>Categories</b> / <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&amp;heatmap=foreignSources">Foreign Sources</a> / <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&amp;heatmap=monitoredServices">Services</a>
                      <%
                      } else {
                      %>
                      <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&amp;heatmap=categories">Categories</a> / <a href="<%=request.getRequestURI()%>?mode=<%=mode%>&amp;heatmap=foreignSources">Foreign Sources</a> / <b>Services</b>
                      <%
                              }
                          }
  