anchor.diff:  <html>
       <head>
           <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
  -        <meta http-equiv="refresh" content="2">
  +        <%--meta http-equiv="refresh" content="2"--%>
           <title>Autorisatie info</title>
       </head>
       <body>
  
positive.code:                 document.forms[0].role.focus();
              }
          </script>
      </body>
  </html>
  
negative.code:         Lijst met roles:
          <ol>
              <c:if test="${pageContext.request.userPrincipal != null}" >
                  <c:catch>
                      <c:forEach var="r" items="${pageContext.request.userPrincipal.groups}">
                          <li><c:out value="${r.name}"/></li>
                      </c:forEach>
                  </c:catch>
                  <c:catch>
                      <c:forEach var="r" items="${pageContext.request.userPrincipal.roles}">
                          <li><c:out value="${r}"/></li>
                      </c:forEach>
                  </c:catch>
              </c:if>
          </ol>
          <p>
          Test HttpServletRequest.isUserInRole():
          <p>
          <c:if test="${!empty param.role}">
              Rol <b><c:out value="${param.role}"/>: <%= request.isUserInRole(request.getParameter("role")) %></b>
              <p>
          </c:if>
          <form action="${pageContext.request.pathInfo}" method="get">
  