popup.setSize(new Dimension(300, 200));
popup.setLayout(new BorderLayout());
popup.add("Center", pp);
popup.show();
pp.init();
while(!pp.waitForCompletion());
popup.setVisible(false);
if (pp.canceled())
return null;
Base64Encoder encoder =
new Base64Encoder(pp.getUserName()+":"+pp.getPassword());