diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
index 075daad16..8f020425e 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/Planner.java
@@ -49,6 +49,16 @@ import org.zkoss.zul.api.Button;
 
 public class Planner extends HtmlMacroComponent  {
 
+    public static void registerNeededScripts() {
+        IScriptsRegister register = getScriptsRegister();
+        register.register(ScriptsRequiredByPlanner.class);
+    }
+
+    private static IScriptsRegister getScriptsRegister() {
+        return OnZKDesktopRegistry.getLocatorFor(IScriptsRegister.class)
+                .retrieve();
+    }
+
     private GanttDiagramGraph diagramGraph;
 
     private LeftPane leftPane;
@@ -73,11 +83,6 @@ public class Planner extends HtmlMacroComponent  {
         registerNeededScripts();
     }
 
-    private void registerNeededScripts() {
-        IScriptsRegister register = getScriptsRegister();
-        register.register(ScriptsRequiredByPlanner.class);
-    }
-
     TaskList getTaskList() {
         if (ganttPanel == null) {
             return null;
@@ -281,11 +286,6 @@ public class Planner extends HtmlMacroComponent  {
         getDependencyList().redrawDependencies();
     }
 
-    private IScriptsRegister getScriptsRegister() {
-        return OnZKDesktopRegistry.getLocatorFor(IScriptsRegister.class)
-                .retrieve();
-    }
-
     @Override
     public void afterCompose() {
         super.afterCompose();
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java
index cf059a4fa..4904e18c5 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/tabs/MultipleTabsPlannerController.java
@@ -42,6 +42,7 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.config.BeanDefinition;
 import org.springframework.context.annotation.Scope;
 import org.springframework.stereotype.Component;
+import org.zkoss.ganttz.Planner;
 import org.zkoss.ganttz.TabSwitcher;
 import org.zkoss.ganttz.TabsRegistry;
 import org.zkoss.ganttz.adapters.State;
@@ -201,6 +202,7 @@ public class MultipleTabsPlannerController implements Composer,
 
     @Override
     public void doAfterCompose(org.zkoss.zk.ui.Component comp) throws Exception {
+        Planner.registerNeededScripts();
         tabsSwitcher = (TabSwitcher) comp;
         breadcrumbs = comp.getPage().getFellow("breadcrumbs");
         tabsSwitcher.setConfiguration(buildTabsConfiguration());