function OpenWin(sPage, sWindow, width, height) {
  if (!width) width = 500;
  if (!height) height = 500;  
  if (!sWindow) sWindow = "";
    var winRef = window.open(sPage,sWindow,'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,width=' + width + ',height=' + height);
    winRef.focus();
}