function OpenWin(url,name,width,height) {
  var str = "height=" + height + ",innerHeight=" + height;
  str += ",width=" + width + ",innerWidth=" + width;
  if (window.screen) {
    var ah = screen.availHeight - 30;
    var aw = screen.availWidth - 10;
    var xc = Math.floor((aw - width) / 2);
    var yc = Math.floor((ah - height) / 2);
    str += ",left=" + xc + ",screenX=" + xc;
    str += ",top=" + yc + ",screenY=" + yc;
    // alert(screen.availWidth + "x" + screen.availHeight + "\n" + xc + "x" + yc);
  }
  str += ",directories=0,location=0,menubar=0,personalbar=0,scrollbars=0,status=0,toolbar=0";
  return window.open(url,name,str);
}