public void onExit(ActionEvent ae) {
 		
 		getWorkpageContainer().closeAllWorkpages(false, new Runnable() {
 			public void run() {
 				SessionUtils.initSessionObjects(null);
 
 				LogonMBean logon = (LogonMBean) getOwningDispatcher().getDispatchedBean(LogonMBean.class);
 				if (logon != null) {
 					logon.setPassword(null);
 					logon.setUser(null);
 				}
 		                HttpSessionAccess.getCurrentDialogSession().invalidate();
 			}
 		});
 

 	getWorkpage().addLifecycleListener(new WorkpageDefaultLifecycleListener() {
 			public void reactOnDestroyed() {
 				super.reactOnDestroyed();
 				BufferedContentMgr.remove(m_downloadProvider);
 			}
 
 			public boolean close() {
 				if (!m_dirty)
 					return true;
 				else {
 					YESNOPopup.createInstance("UnsavedData", "Data was changed. Do you really want to exit?", new YESNOPopup.IYesNoListener() {
 						public void reactOnNo() {
 						}
 
 						public void reactOnYes() {
 							getWorkpageContainer().closeWorkpageForced(getWorkpage());
 							if (getCloseContinueOperation() != null)
 								getCloseContinueOperation().run();
 						}
 					});
 					return false;
 				}
 			}
 		});