Event.observe(window,'load',function () {
  var userid = 0;
  var login_name = "";
  var e;
  if(document.cookie) {
      /* alert(document.cookie); */
    /RPOINFID=([^\;]*)/.exec(document.cookie);
    var cookie = RegExp.$1;
    var tmp = cookie.split("-");
    if(tmp.length == 5) {
      userid = parseInt(tmp[0]);
      login_name = unescape(unescape(unescape(tmp[2])));
    }
  }
  if(userid > 0) {
    if ( (e=$('login_name')) ) e.innerHTML = login_name;
    if ( (e=$('guest')) ) e.style.display = 'none';
    if ( (e=$('user')) ) e.style.display = 'block';
  }
});