function openWindow ( PAGE, WIDTH, HEIGHT ) {
  var winString = "height=" + HEIGHT + ",width=" + WIDTH + ",screenX=50,screenY=50,directories=0,location=0,menubar=0,resizable=0,scrollbars=1,status=0,toolbar=0" ;
  newWindow = window.open( PAGE, "newwin" , winString) ;
  newWindow.focus();
}