public BusyGlass(){
  setLayout(new BorderLayout());
  setVisible(false);
  setOpaque(false);
  setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
}

public BusyGlass ( ) { setLayout ( new BorderLayout ( ) ) ; setVisible ( false ) ; setOpaque ( false ) ; setCursor ( Cursor . getPredefinedCursor ( Cursor . WAIT_CURSOR ) ) ; }
create glasspane component to block input on toplevel
