function openWindow(name){
  var wnd=null
  if ((wnd ==null)||wnd.closed)
    wnd = window.open(name, "MSPB","left=100,top=100,height=450,width=800,status=no,toolbar=no,menubar=no,location=no,resizable=no,scrollbars=yes");
  else
    wnd.focus();  
}