anchor.diff:              </script>
           </c:if>
   
  -        <script type="text/javascript">
  -            Ext.onReady(function() {
  -                var featureSourceId = Ext.get('featureSourceId');
  -                var simpleFeatureTypeId = Ext.get('simpleFeatureTypeId');
  -                featureSourceId.on('change', function() {
  -                    featureSourceChange(featureSourceId);
  -                });
  -                simpleFeatureTypeId.on('change', function() {
  -                    simpleFeatureTypeChange(simpleFeatureTypeId);
  -                });
  -                function getOption(value, text, selected) {
  -                    var selectedtext = '';
  -                    if(selected) {
  -                        selectedtext = ' selected="selected"'
  -                    }
  -                    return '<option value="' + value + '"' + selectedtext + '>' + text + '</option>';
  -                }
  -                function featureSourceChange(featureSourceId) {
  -                    var selectedValue = parseInt(featureSourceId.getValue());
  -                    
  -                    var simpleFeatureTypeId = Ext.get('simpleFeatureTypeId');
  -                    // We are now emptying dom and adding options manully, don't know if this is optimal
  -                    simpleFeatureTypeId.dom.innerHTML = '';
  -                    simpleFeatureTypeId.insertHtml('beforeEnd', getOption(-1, 'Kies...', true));
  -                    
  -                        if(selectedValue != 1) {
  -                        Ext.Ajax.request({ 
  -                            url: '<stripes:url beanclass="nl.b3p.viewer.admin.stripes.AttributeActionBean" event="getFeatureTypes"/>', 
  -                            params: { 
  -                                featureSourceId: selectedValue
  -                            }, 
  -                            success: function ( result, request ) {
  -                                result = JSON.parse(result.responseText);
  -                                Ext.Array.each(result, function(item) {
  -                                    simpleFeatureTypeId.insertHtml('beforeEnd', getOption(item.id, item.name, false));
  -                                });                              
  -                            },
  -                            failure: function() {
  -                                Ext.MessageBox.alert("Foutmelding", "Er is een onbekende fout opgetreden");
  -                            }
  -                        });
  -                    }
  -                }
  -                // Init with change, because a certain select value can be preselected
  -                featureSourceChange(featureSourceId);
  -            });
  -        </script>
       </stripes:layout-component>
   </stripes:layout-render>
positive.code: 
                  <stripes:submit name="save" value="Kaartlaag opslaan"/>
                  <stripes:submit name="cancel" value="Annuleren"/>
              </c:if>
          </stripes:form>
  
  
negative.code:                     <tr>
                          <td>Attribuutbron:</td>
                          <td>
                              <stripes:select name="featureSourceId" id="featureSourceId">
                                  <stripes:option value="1">Kies..</stripes:option>
                                  <c:forEach var="source" items="${actionBean.featureSources}">
                                      <stripes:option value="${source.id}"><c:out value="${source.name}"/></stripes:option>
                                  </c:forEach>
                              </stripes:select>
                          </td>
                      </tr>
                      <tr>
  