diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
index 7f4c66774..0bcf945c4 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
@@ -122,39 +122,7 @@ public class Planner extends XulElement {
         this.context = context;
         clear();
         context.add(configuration.getData());
-        visualizeTabs(context, configuration.getTabFactories());
-    }
-
-    private <T> TabsRegistry createTabs(IContext<T> context,
-            List<ITabFactory<T>> factories) {
-        List<ITab> tabs = new ArrayList<ITab>();
-        tabs.add(createTasksPlanningTab());
-        for (ITabFactory<T> factory : factories) {
-            tabs.add(factory.create(context));
-        }
-        TabsRegistry tabsRegistry = new TabsRegistry(this);
-        for (ITab t : tabs) {
-            tabsRegistry.add(t);
-        }
-        return tabsRegistry;
-    }
-
-    private <T> void visualizeTabs(
-            FunctionalityExposedForExtensions<T> context,
-            List<ITabFactory<T>> tabFactories) {
-        TabsRegistry tabs = createTabs(context, tabFactories);
-        registryTabs(tabs);
-        tabs.showFirst();
-    }
-
-    private void registryTabs(TabsRegistry tabs) {
-        if (!getMenuItemsRegisterLocator().isRegistered())
-            return;
-        tabs.registerAtMenu(getMenuItemsRegisterLocator().retrieve());
-    }
-
-    private OnZKDesktopRegistry<IMenuItemsRegister> getMenuItemsRegisterLocator() {
-        return OnZKDesktopRegistry.getLocatorFor(IMenuItemsRegister.class);
+        setupComponents();
     }
 
     private void clear() {
@@ -200,17 +168,17 @@ public class Planner extends XulElement {
         return diagramGraph;
     }
 
-    private TasksPlanningTab createTasksPlanningTab() {
+    private void setupComponents() {
         this.leftPane = new LeftPane(contextualizedGlobalCommands,
                 this.diagramGraph.getTopLevelTasks());
         this.ganttPanel = new GanttPanel(this.context,
                 commandsOnTasksContextualized, editTaskCommand);
-        TasksPlanningTab result = new TasksPlanningTab(this, leftPane,
-                ganttPanel);
-        result.afterCompose();
+        leftPane.setParent(this);
+        ganttPanel.setParent(this);
+        leftPane.afterCompose();
+        ganttPanel.afterCompose();
         this.leftPane
                 .setGoingDownInLastArrowCommand(goingDownInLastArrowCommand);
-        return result;
     }
 
     void removeTask(Task task) {
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java b/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java
deleted file mode 100644
index e55a89b50..000000000
--- a/ganttzk/src/main/java/org/zkoss/ganttz/TasksPlanningTab.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package org.zkoss.ganttz;
-
-import org.zkoss.ganttz.extensions.ITab;
-import org.zkoss.zk.ui.Component;
-
-public class TasksPlanningTab implements ITab {
-
-    private final Planner planner;
-    private final LeftPane leftPane;
-    private final GanttPanel ganttPanel;
-
-    public TasksPlanningTab(Planner planner, LeftPane leftPane,
-            GanttPanel ganttPanel) {
-        this.planner = planner;
-        this.leftPane = leftPane;
-        this.ganttPanel = ganttPanel;
-    }
-
-    public void afterCompose() {
-        leftPane.setParent(planner);
-        ganttPanel.setParent(planner);
-        leftPane.afterCompose();
-        ganttPanel.afterCompose();
-    }
-
-    @Override
-    public void addToParent(Component parent) {
-    }
-
-    @Override
-    public void hide() {
-        leftPane.detach();
-        ganttPanel.detach();
-    }
-
-    @Override
-    public void show() {
-        leftPane.setParent(planner);
-        ganttPanel.setParent(planner);
-        ganttPanel.comingFromAnotherTab();
-    }
-
-    @Override
-    public String getName() {
-        return "Tasks Planning";
-    }
-}
diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java b/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java
index b5c447ab5..e3f9fcd32 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/adapters/PlannerConfiguration.java
@@ -9,7 +9,6 @@ import org.zkoss.ganttz.extensions.ICommand;
 import org.zkoss.ganttz.extensions.ICommandOnTask;
 import org.zkoss.ganttz.extensions.IContext;
 import org.zkoss.ganttz.extensions.IContextWithPlannerTask;
-import org.zkoss.ganttz.extensions.ITabFactory;
 
 /**
  * A object that defines several extension points for gantt planner
@@ -59,8 +58,6 @@ public class PlannerConfiguration<T> {
 
     private ICommandOnTask<T> editTaskCommand = new NullCommandOnTask<T>();
 
-    private List<ITabFactory<T>> tabFactories = new ArrayList<ITabFactory<T>>();
-
     public PlannerConfiguration(IAdapterToTaskFundamentalProperties<T> adapter,
             IStructureNavigator<T> navigator, List<? extends T> data) {
         this.adapter = adapter;
@@ -116,13 +113,4 @@ public class PlannerConfiguration<T> {
         Validate.notNull(editTaskCommand);
         this.editTaskCommand = editTaskCommand;
     }
-
-    public void addTab(ITabFactory<T> tabCreator) {
-        Validate.notNull(tabCreator);
-        this.tabFactories.add(tabCreator);
-    }
-
-    public List<ITabFactory<T>> getTabFactories() {
-        return Collections.unmodifiableList(tabFactories);
-    }
 }
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/DataForPlanner.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/DataForPlanner.java
index e17f76b3b..6787da85b 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/DataForPlanner.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/DataForPlanner.java
@@ -31,7 +31,6 @@ import org.zkoss.ganttz.extensions.ICommandOnTask;
 import org.zkoss.ganttz.extensions.IContext;
 import org.zkoss.ganttz.extensions.IContextWithPlannerTask;
 import org.zkoss.ganttz.extensions.ITab;
-import org.zkoss.ganttz.extensions.ITabFactory;
 import org.zkoss.ganttz.resourceload.ResourcesLoadPanel;
 import org.zkoss.zk.ui.Component;
 
@@ -54,53 +53,9 @@ public class DataForPlanner {
     private PlannerConfiguration<ITaskFundamentalProperties> setup(
             PlannerConfiguration<ITaskFundamentalProperties> configuration) {
         addCommands(configuration);
-        addTabs(configuration);
         return configuration;
     }
 
-    private void addTabs(
-            PlannerConfiguration<ITaskFundamentalProperties> configuration) {
-        configuration.addTab(new ITabFactory<ITaskFundamentalProperties>() {
-
-            @Override
-            public ITab create(
-                    final IContext<ITaskFundamentalProperties> context) {
-                return new ITab() {
-
-                    private Component parent;
-
-                    private ResourcesLoadPanel loadPanel;
-
-                    @Override
-                    public void show() {
-                        loadPanel = new ResourcesLoadPanel(
-                                createFakeDataForResourcesLoad(), context
-                                        .getTimeTracker());
-                        parent.appendChild(loadPanel);
-                        loadPanel.afterCompose();
-                    }
-
-                    @Override
-                    public void hide() {
-                        if (loadPanel != null) {
-                            loadPanel.detach();
-                        }
-                    }
-
-                    @Override
-                    public String getName() {
-                        return _("Resource Load");
-                    }
-
-                    @Override
-                    public void addToParent(Component parent) {
-                        this.parent = parent;
-                    }
-                };
-            }
-        });
-    }
-
     private List<LoadTimelinesGroup> createFakeDataForResourcesLoad() {
         List<LoadTimelinesGroup> result = new ArrayList<LoadTimelinesGroup>();
         LoadTimeLine resource1 = new LoadTimeLine("resource1",