diff --git a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTable.java b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTable.java
index 71e642ec7..86724f3cb 100644
--- a/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTable.java
+++ b/ganttzk/src/main/java/org/zkoss/ganttz/timetracker/TimeTrackedTable.java
@@ -1,21 +1,25 @@
 package org.zkoss.ganttz.timetracker;
 
+import java.util.List;
+import java.util.concurrent.Callable;
+
 import org.zkoss.zul.ListModel;
+import org.zkoss.zul.ListModelList;
 import org.zkoss.zul.RowRenderer;
 
-public class TimeTrackedTable extends TimeTrackerComponent {
+public class TimeTrackedTable<T> extends TimeTrackerComponent {
 
-    private final ListModel listModel;
+    private final Callable<List<T>> data;
+    private final ICellForDetailItemRenderer<T> cellRenderer;
 
-    private final RowRenderer rowRenderer;
-
-    public TimeTrackedTable(ListModel listModel, RowRenderer rowRenderer,
+    public TimeTrackedTable(Callable<List<T>> dataSource,
+            ICellForDetailItemRenderer<T> cellRenderer,
             TimeTracker timeTracker,
             String idTimeTrackerElement) {
         super(timeTracker, "~./ganttz/zul/timetracker/secondlevelgrid.zul",
                 idTimeTrackerElement);
-        this.listModel = listModel;
-        this.rowRenderer = rowRenderer;
+        this.data = dataSource;
+        this.cellRenderer = cellRenderer;
     }
 
     @Override
@@ -23,11 +27,20 @@ public class TimeTrackedTable extends TimeTrackerComponent {
     }
 
     public ListModel getTableModel() {
-        return listModel;
+        return new ListModelList(getData());
     }
 
-    public RowRenderer getGridRenderer() {
-        return rowRenderer;
+    private List<T> getData() {
+        try {
+            return data.call();
+        } catch (Exception e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    public RowRenderer getRowRenderer() {
+        return OnDetailItemsRowRenderer.create(cellRenderer,
+                getDetailsSecondLevel());
     }
 
 }
diff --git a/ganttzk/src/main/resources/web/ganttz/zul/timetracker/secondlevelgrid.zul b/ganttzk/src/main/resources/web/ganttz/zul/timetracker/secondlevelgrid.zul
index 4a6a101d7..cc14e5628 100644
--- a/ganttzk/src/main/resources/web/ganttz/zul/timetracker/secondlevelgrid.zul
+++ b/ganttzk/src/main/resources/web/ganttz/zul/timetracker/secondlevelgrid.zul
@@ -1,5 +1,6 @@
 <zk>
-<grid width="${top.horizontalSize+2}" model="${top.tableModel}">
+<grid width="${top.horizontalSize+2}" model="${top.tableModel}"
+    rowRenderer="${top.rowRenderer}">
     <columns>
         <column label="${each.name}" width="${each.size}"
                     forEach="${top.detailsSecondLevel}"></column>
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/FakeTimeTrackableTableController.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/FakeTimeTrackableTableController.java
new file mode 100644
index 000000000..442b3ab50
--- /dev/null
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/FakeTimeTrackableTableController.java
@@ -0,0 +1,86 @@
+package org.navalplanner.web;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import java.util.concurrent.Callable;
+
+import org.joda.time.Days;
+import org.joda.time.LocalDate;
+import org.zkoss.ganttz.timetracker.ICellForDetailItemRenderer;
+import org.zkoss.ganttz.timetracker.TimeTrackedTable;
+import org.zkoss.ganttz.timetracker.TimeTracker;
+import org.zkoss.ganttz.timetracker.zoom.DetailItem;
+import org.zkoss.ganttz.util.Interval;
+import org.zkoss.zk.ui.Component;
+import org.zkoss.zk.ui.util.GenericForwardComposer;
+import org.zkoss.zul.Div;
+import org.zkoss.zul.Label;
+
+public class FakeTimeTrackableTableController extends GenericForwardComposer {
+
+    private Div insertionPoint;
+    private TimeTrackedTable<FakeData> timeTrackedTable;
+
+    @Override
+    public void doAfterCompose(Component comp) throws Exception {
+        super.doAfterCompose(comp);
+
+        timeTrackedTable = new TimeTrackedTable<FakeData>(getDataSource(),
+                getRenderer(), new TimeTracker(createExampleInterval()),
+                "timetrackedtable");
+        insertionPoint.appendChild(timeTrackedTable);
+        timeTrackedTable.afterCompose();
+    }
+
+    private Callable<List<FakeData>> getDataSource() {
+        return new Callable<List<FakeData>>() {
+
+            @Override
+            public List<FakeData> call() throws Exception {
+                List<FakeData> result = new ArrayList<FakeData>();
+                for (int i = 0; i < 10; i++) {
+                    result.add(new FakeData(6));
+                }
+                return result;
+            }
+        };
+    }
+
+    private ICellForDetailItemRenderer<FakeData> getRenderer() {
+        return new ICellForDetailItemRenderer<FakeData>() {
+
+            @Override
+            public Component cellFor(DetailItem item, FakeData data) {
+                Label label = new Label();
+                label.setValue(data.getHoursForDetailItem(item) + "h");
+                return label;
+            }
+        };
+    }
+
+    private Interval createExampleInterval() {
+        LocalDate start = new LocalDate(2008, 1, 1);
+        LocalDate end = new LocalDate(2009, 1, 1);
+        return new Interval(asDate(start), asDate(end));
+    }
+
+    private Date asDate(LocalDate start) {
+        return start.toDateMidnight().toDate();
+    }
+
+}
+
+class FakeData {
+    private final int hoursPerDay;
+
+    FakeData(int hoursPerDay) {
+        this.hoursPerDay = hoursPerDay;
+    }
+
+    public int getHoursForDetailItem(DetailItem detail) {
+        Days daysBetween = Days.daysBetween(detail.getStartDate(),
+                detail.getEndDate());
+        return daysBetween.getDays() * hoursPerDay;
+    }
+}
diff --git a/navalplanner-webapp/src/main/webapp/planner/testtimetrackabletable.zul b/navalplanner-webapp/src/main/webapp/planner/testtimetrackabletable.zul
new file mode 100644
index 000000000..ccb9a7880
--- /dev/null
+++ b/navalplanner-webapp/src/main/webapp/planner/testtimetrackabletable.zul
@@ -0,0 +1,19 @@
+<?page title="${i18n:_('Navalpro: Scheduling')}"?>
+<?init class="org.zkoss.zkplus.databind.AnnotateDataBinderInit" ?>
+<?init class="org.zkoss.zk.ui.util.Composition" arg0="/common/layout/template.zul"?>
+<?taglib uri="/WEB-INF/tld/i18n.tld" prefix="i18n"?>
+<?link rel="stylesheet" type="text/css" href="/planner/css/ganttzk.css"?>
+<?link rel="stylesheet" type="text/css" href="/common/css/navalpro_v01.css"?>
+<?link rel="stylesheet" type="text/css" href="/common/css/navalpro_zk.css"?>
+<?variable-resolver class="org.zkoss.zkplus.spring.DelegatingVariableResolver"?>
+<zk>
+
+<zscript><![CDATA[
+    fakeController = new org.navalplanner.web.FakeTimeTrackableTableController();
+]]>
+</zscript>
+
+    <div id="insertionPoint" apply="${fakeController}">
+    </div>
+
+</zk>
\ No newline at end of file