function frame_check(target_page)
  {
  var top_window;

  top_window = window;
  while (top_window != top_window.parent)
    top_window = top_window.parent;

  if ((top_window.frames.length != 2) ||
      (top_window.frames[0].name != "kcag_left_nav") ||
      (top_window.frames[1].name != "kcag_main"))
    top_window.location.href = "http://www.kcgrotto.org/index_targeted.html?target=" + target_page;

  return(true);
  }