function pop() {
  hwin=window.open('', '_hwin', 'toolbar=1,scrollbars=1,location=1,status=1,menubar=1,resizable=1,width=640,height=390');
  hwin.forward;
  hwin.focus();
  hwin.rwin=top;
  hwin.rwin.helpwin=1;
}

function pop2() {
  hwin=window.open('', '_hwin', 'resizable=1,width=350,height=400,scrollbars=yes');
  hwin.forward;
  hwin.focus();
  hwin.rwin=top;
  hwin.rwin.helpwin=1;
}