function openWin(loc){
  var width = 640;
  var height = 440;
  var XOffset = (screen.availWidth - width)/2;
  var YOffset = 0;

  window.open(loc, 'showPolicyWin','width=' + width + ',height=' + height + ',screenX=' + XOffset + ',screenY=' + YOffset + ',top=' + YOffset + ',left=' + XOffset + ',toolbar=1,location=1,directories=0,status=0,menubar=1,scrollbars=1,resizable=1,copyhistory=0');
}