var
  popupWindow;

function checkWindow() {
  if (!popupWindow.closed)
    setTimeout('checkWindow()', 250);
  else
    location.reload(true);
}

function openWindow(url, autoupdate, features) {
  popupWindow = window.open(url, 'window', 
    'toolbar=0,location=0,directories=0,status=0,menubar=0,width=460,height=370' +
//    ((navigator.appName.indexOf("Netscape") >= 0) ? '420' : '370') +
    ((features) ? ',' + features : ''));
  if (autoupdate)
    checkWindow();
}