anchor.diff:             anchorName = anchors[i].innerHTML; 
              if ( anchorName == portalPageName) { 
                  displayPortlets(anchors[i]);
  -               
  -               if(navigationTree){
  -                   findAndSelect(portalPageName,navigationTree.rootNode);
  +               if(dijit.byId("navigationTree")){
  +                   findAndSelect(portalPageName,dijit.byId("navigationTree").rootNode);
                  }
                  return;
              }
  
positive.code:        store: treeStore
     });
         
     navigationTree = new dijit.Tree
             (
           {  model: treeModel,
              showRoot: false,
  
negative.code:             }
          }
          //make sure the ancestor node expanded before
           var firstNode = getTreeNode(navigationTree,pathToExpandItems[0],treeStore);     
           expandParent(firstNode.getParent());
          
          for (i = 0;;i++) {
              node  = getTreeNode(navigationTree,pathToExpandItems[i],treeStore);
              if(i < pathToExpandItems.length-1)
                  navigationTree._expandNode(node);
              else 
              {
  