function subwin(html, w, h)
{
    var x = 0;
    var y = 0;

    var size = ',width=' + w + ',height=' + h;
    var xy = ',top=' + y + ",left=" + x;
    var attr = 'toolbar=no,location=no,directories=no,status=no,'
      + 'menubar=no,resizable=yes,scrollbars=yes';

    window.open(html, 'traffic', attr + size + xy);
}