anchor.diff:  <%@ page import="java.util.Vector"%>
   <%@ page import="org.LexGrid.concepts.Concept" %>
   <%@ page import="gov.nih.nci.evs.browser.utils.HTTPUtils" %>
  +<%@ page import="gov.nih.nci.evs.browser.common.Constants" %>
   
   <script type="text/javascript" src="<%= request.getContextPath() %>/js/yui/yahoo-min.js" ></script>
   <script type="text/javascript" src="<%= request.getContextPath() %>/js/yui/event-min.js" ></script>
  
positive.code: 
        tree = new YAHOO.widget.TreeView("treecontainer");
        var ontology_node_id = document.forms["pg_form"].ontology_node_id.value;
        var ontology_display_name = "NCI Thesaurus";
  
        if (ontology_node_id == null || ontology_node_id == "null")
        {
  
negative.code:     }
  
      function onClickViewEntireOntology(ontology_display_name) {
        var ontology_display_name = Constants.CODING_SCHEME_NAME;//document.pg_form.ontology_display_name.value;
        tree = new YAHOO.widget.TreeView("treecontainer");
        tree.draw();
        resetRootDesc();
  