ins.addClickHandler( new ClickHandler() {
public void onClick(ClickEvent event) {
if ( !Window.confirm( constants.AboutToInstallSampleRepositoryAreYouSure() ) ) return;
LoadingPopup.showMessage( constants.ImportingAndProcessing() );
ModuleServiceAsync moduleService = GWT.create(ModuleService.class);
moduleService.installSampleRepository(new GenericCallback<java.lang.Void>() {
public void onSuccess(Void v) {
Window.alert(constants.RepositoryInstalledSuccessfully());
hide();
Window.Location.reload();
}