anchor.diff:  		sortable="false"
   		class="iconColumn" 
   		headerClass="iconColumn">
  -		<c:url var="url" value="${baseURL}${matrix.phyloWSPath}"><c:param name="format">rdf</c:param></c:url>
  +		<c:url var="url" value="${matrix.phyloWSPath.purl}"><c:param name="format">rdf</c:param></c:url>
   		<a href="${url}">
   			<img 
   				class="iconButton" 
  
positive.code: 		sortable="false"
  		class="iconColumn" 
  		headerClass="iconColumn">
  		<c:url var="url" value="${baseURL}${matrix.phyloWSPath}"><c:param name="format">html</c:param></c:url>
  		<a href="${url}">		
  			<img 
  				class="iconButton" 
  
negative.code: 
  <c:set var="currentSection" scope="request" value="Matrices"/>
  <c:set var="headerPrefix" scope="request" value="${currentSection} for "/>
  
  <jsp:include page="nav.jsp"/>
  
  