public void openWindow( String pageDescriptorId ) {
ApplicationWindow newWindow = initWindow(createNewWindow());
if ( pageDescriptorId == null ) {
ApplicationPageFactory pageFactory
= (ApplicationPageFactory)services().getService(ApplicationPageFactory.class);
newWindow.showPage(pageFactory.createApplicationPage(newWindow, new MultiViewPageDescriptor()));
}
else {
newWindow.showPage(pageDescriptorId);
}
}