function initFrames () {
  var sw = screen.width;
  var sh = screen.height;
  var rs = true;
  if (sw < 800 || sh < 600) {
    rs = false;
  }
  if (sw < 800) {
    bl = "0";
    br = "0";
  } else {
    bl = "0";
    br = "*";
  }
  if (sh < 768) {
    ih = "*";
    is = "AUTO";
    lh = "0";
  } else {
    ih = "480";
    is = "NO";
    lh = "*";
  }
  return rs;
}