function get_cookie ( cookie_name ) {
  var results = document.cookie.match ( '(^|;) ?' + cookie_name + '=([^;]*)(;|$)' );
  if ( results )
    return ( unescape ( results[2] ) );
  else
    return null;
}
var c_r=get_cookie("referrer");
var c_l=get_cookie("location");
var c_d=get_cookie("refdate");