anchor.diff:                dictionary = (String) request.getParameter("dictionary");
                 code = (String) request.getParameter("code");
                 type = (String) request.getParameter("type");
  -             
               }
  +            if (dictionary == null) {
  +                dictionary = "NCI Thesaurus";
  +            }            
               if (type == null) {
                   type = "properties";
               }
  
positive.code:                      type.compareTo("all") != 0) {
                  type = "properties";     
              }
                         
              dictionary = "NCI Thesaurus";
              request.getSession().setAttribute("dictionary", dictionary);
              request.getSession().setAttribute("type", type);
              request.getSession().setAttribute("singleton", "false");
              String vers = null;
              String ltag = null;
              
              Concept c = DataUtils.getConceptByCode(dictionary, vers, ltag, code);
              String name = "";
              if (c != null) {
                 request.getSession().setAttribute("concept", c);
                 request.getSession().setAttribute("code", code);
                 name = c.getEntityDescription().getContent();
              } else {
                 name = "The server encountered an internal error that prevented it from fulfilling this request.";
                 code = "";
              }
  
             
            if (c != null) {
            %>
  		  <div class="texttitle-blue">
  		      <%=name%> (Code <%=code%>)
  
negative.code:           <%
            } else {
            %>
   		  <div class="textbody">
  		      <%=name%>
  		  </div> 
  	  <%	  
  