anchor.diff:                  // Init with change, because a certain select value can be preselected
                   featureSourceChange(featureSourceId);
               });
  -            
  +
               function reloadGrid(){
  -                Ext.getCmp('editGrid').getStore().load(); 
  +                Ext.getCmp('editGrid').getStore().load();
               }
           </script>
  -        <script type="text/javascript" src="${contextPath}/resources/js/services/attribute.js"></script>
       </stripes:layout-component>
   
   </stripes:layout-render>
  
positive.code:                 <iframe src="<stripes:url beanclass="nl.b3p.viewer.admin.stripes.AttributeActionBean" event="cancel"/>" id="editFrame" frameborder="0"></iframe>
              </div>
          </div>
          
          <script type="text/javascript">
              var gridurl = '<stripes:url beanclass="nl.b3p.viewer.admin.stripes.AttributeActionBean" event="getGridData"/>';
              var editurl = '<stripes:url beanclass="nl.b3p.viewer.admin.stripes.AttributeActionBean" event="edit"/>';
              var activelink = 'menu_attributen';
              
              Ext.onReady(function() {
                  var featureSourceId = Ext.get('featureSourceId');
                  var simpleFeatureTypeId = Ext.get('simpleFeatureTypeId');
  
negative.code:                 function removeChilds(el) {
                      if (el.hasChildNodes()) {
                          while (el.childNodes.length >= 1) {
                              el.removeChild(el.firstChild);
                          }
                      }
                  }
                  function featureSourceChange(featureSourceId) {
                      var selectedValue = parseInt(featureSourceId.getValue());
  
                      var simpleFeatureTypeId = document.getElementById('simpleFeatureTypeId');
                      // We are now emptying dom and adding options manully, don't know if this is optimal
                      removeChilds(simpleFeatureTypeId);
                      simpleFeatureTypeId.appendChild(getOption(-1, 'Kies...', true));
  
                      if(selectedValue != -1) {
                          Ext.Ajax.request({
                              url: '<stripes:url beanclass="nl.b3p.viewer.admin.stripes.AttributeActionBean" event="getFeatureTypes"/>',
                              scope:this,
                              params: {
                                  featureSourceId: selectedValue
                              },
                              success: function ( result, request ) {
                                  result = Ext.JSON.decode(result.responseText);
                                  Ext.Array.each(result, function(item) {
  