anchor.diff:          <p class="textbody">
             <A HREF="#introduction">Introduction</A><br>
             <A HREF="#searchhelp">Search</A><br>
  +          <A HREF="#searchavdhelp">Advanced Search</A><br>
  +          <A HREF="#searchresults">Search Results</A><br>
             <A HREF="#conceptdetails">Concept Details</A><br>
  -          <A HREF="#hierarchy">View NCIt Hierarchy</A><br>
  +          <A HREF="#hierarchy">View Hierarchy</A><br>
             <A HREF="#sources">Sources</A><br>
             <A HREF="#knownissues">Known Issues</A><br>
             <A HREF="#additionalinformation">Additional Information</A>
  
positive.code:             <td><h2><A NAME="conceptdetails">Concept Details</A></h2></td>
              <td align="right"><a href="#"><img src="<%= request.getContextPath() %>/images/up_arrow.jpg" width="16" height="16" border="0" alt="top" /></a></td>
            </tr></table>
            Detailed information on the selected concept is grouped and shown on several related pages:
           <ul>
              <li>Tabbed information gives the concepts meaning, labels, and direct relationships:
  
negative.code:         </p>
          <p class="textbody">
            <table width="725px" cellpadding="0" cellspacing="0" border="0"><tr>
              <td><h2><A NAME="hierarchy">View Hierarchy</A></h2></td>
              <td align="right"><a href="#"><img src="<%= request.getContextPath() %>/images/up_arrow.jpg" width="16" height="16" border="0" alt="top" /></a></td>
            </tr></table>
            <!-- ************* View Hierarchy ************** -->
            Many sources have hierarchies of concepts, arranged from the most general at the top to the most
            specific at the bottom leaf nodes. Most common are "is-a" hierarchies, where child concepts are
            subtypes of their parent(s) (e.g., Mold is-a Fungus), but other relationships, such as "part-of",
            are also used by some source terminologies. The browser provides several ways of viewing hierarchies
            when they are available.
            <br><br>
            Click on the <b>View NCIt Hierarchy</b> link at the top of the page to bring up a separate window showing the
            NCI Thesaurus hierarchy as presented through NCIm concepts. Some details:
            <ul>
              <li>At first, only the top level nodes of the hierarchy are shown.
              <li>At each level, concepts are listed alphabetically by concept name.
              <li>Browse through the levels by clicking on the + next to each concept.
              <li>Click on the concept name itself to see the concepts details in the main browser window.
            </ul>
            <b>Source</b> drop-down box: If you select a source with a concept hierarchy that can be viewed, an
            icon will appear to the right of the source selection box; click on the icon to view the hierarchy
            in a separate window.
          </p>
          <p class="textbody">
            <table width="725px" cellpadding="0" cellspacing="0" border="0"><tr>
              <td><h2><A NAME="sources">Sources</A></h2></td>
              <td align="right"><a href="#"><img src="<%= request.getContextPath() %>/images/up_arrow.jpg" width="16" height="16" border="0" alt="top" /></a></td>
            </tr></table>
            <!-- ************* Sources ************** -->
            Click on the
            <a href="#" onclick="javascript:window.open('<%=request.getContextPath() %>/pages/source_help_info.jsf',
            '_blank','top=100, left=100, height=740, width=780, status=no, menubar=no, resizable=yes, scrollbars=yes, toolbar=no, location=no, directories=no');">
  