function cookie_exists(Name) {
// Slightly modified from Netscape's JavaScript guide.
// We just want to know whether the cookie exists;
// we don't care what its value is.
   var search = Name + "="
   if (document.cookie.length > 0) { // if there are any cookies
      offset = document.cookie.indexOf(search) 
      return (offset != -1); // offset != -1 means the cookie exists 
   } // if document.cookie.length > 0
} // function cookie_exists

  function rate_page(rating) {
    var page, re, path;
    path=escape(document.location.pathname);
    re=/pictures\/.*\/.*\.html/;
    if (re.test(document.location.pathname)) {
      // Hack!
      page="../rating.html";
    } else {
      page="rating.html";
    }
    page= page + "?" + "page=" + path + "&title=" + escape(document.title) + "&rating=" + escape(rating) + (cookie_exists(path) ? "&ar=1" : "&ar=0");
    rate_window=window.open(page, "rate_window_name", "hotkeys=yes,innerHeight=150,innerWidth=250,resizable=yes,scrollbars=yes"); //"directories,location,menubar,status,toolbar=no");
    rate_window.focus();
  }