anchor.diff:  
   
   <div id="experimentDescription">
  -    <a id="goto-experiment" class="thick-link" title="Experiment Page"
  -       href="${experimentURL}">${experimentDescription}</a>
  +    <a id="goto-experiment" class="thick-link" href="${experimentURL}">${experimentDescription}</a>
       <c:if test="${hasExtraInfo}">
           <a id="extra-info"
              href="${applicationProperties.buildServerURL(pageContext.request)}/external-resources/${experimentAccession}/extra-info.png">
  
positive.code: <%--
    ~ Copyright 2008-2013 Microarray Informatics Team, EMBL-European Bioinformatics Institute
    ~
    ~ Licensed under the Apache License, Version 2.0 (the "License");
    ~ you may not use this file except in compliance with the License.
    ~ You may obtain a copy of the License at
    ~
    ~ http://www.apache.org/licenses/LICENSE-2.0
    ~
    ~ Unless required by applicable law or agreed to in writing, software
    ~ distributed under the License is distributed on an "AS IS" BASIS,
    ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    ~ See the License for the specific language governing permissions and
    ~ limitations under the License.
    ~
    ~
    ~ For further details of the Gene Expression Atlas project, including source code,
    ~ downloads and documentation, please see:
    ~
    ~ http://gxa.github.com/gxa
    --%>
  <%@ page contentType="text/html;charset=UTF-8" language="java" %>
  
  <%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
  
negative.code: 
              var $pubmedGeneQueries = $('.pubmed-genequery');
  
              $pubmedGeneQueries.tooltip({
                  tooltipClass: "gxaHelpTooltip"
              });
  
              $pubmedGeneQueries.click(function (event) {
                  var pubmedId = $(event.target).attr("data-pubmed-id");
  