anchor.diff:          
           <% 
               AnimalModel theModel = (AnimalModel) pageContext.getAttribute("mdl");
  -            pageContext.setAttribute("emailAddress", theModel.getSubmitter().emailAddress());
  -            pageContext.setAttribute("displayName", theModel.getSubmitter().displayName());
  +            if (theModel.getSubmitter() != null) {
  +                pageContext.setAttribute("emailAddress", theModel.getSubmitter().emailAddress());
  +                pageContext.setAttribute("displayName", theModel.getSubmitter().displayName());
  +            }
  +            else {
  +                pageContext.setAttribute("emailAddress", "");
  +                pageContext.setAttribute("displayName", "");
  +            }
           %>
   		<tr>
   			<td class="GreyBox" width="20%"><b>Submitted by</b></td>
  
positive.code: 		</tr>
  
          <% 
              pageContext.setAttribute("emailAddress", theModel.getPrincipalInvestigator().emailAddress());
              pageContext.setAttribute("displayName", theModel.getPrincipalInvestigator().displayName());
          %>
                    
  		<tr>
  
negative.code: 			<td class="WhiteBox" width="20%"><b>Website for add. info</b></td>
  			<td class="WhiteBoxRightEnd" width="80%">
  				<P>
  				<a href="<c:out value="${mdl.url}"/>" ><c:out value="${mdl.url}"/></a>
  				</P>&nbsp;
  			</td>
  		</tr>		
  