@Override
public void handle(PlatformPlaceChangeEvent event) {
ShortcutCellResources s=com.google.gwt.core.shared.GWT.create(ShortcutCellResources.class);
Application app=null;
KV kv=event.getNewPlace().getCurrent();
if(App.Home.getKv().value.equals(kv.value)){
app=getApp(HomeApp.class);
}else if(App.Document.getKv().value.equals(kv.value)){
app=getApp(DocumentApp.class);
}else if(App.Schedule.getKv().value.equals(kv.value)){