// Get cookie values
function GetCookieValue(offset)
{
  var endstr = document.cookie.indexOf (";", offset);
  if (endstr == -1)
      endstr = document.cookie.length;
  //document.write(unescape(document.cookie.substring(offset, endstr)));
  return unescape(document.cookie.substring(offset, endstr));
}

function ReportCookieValue (cookieName) 
{
  var arg = cookieName + "=";
  var alen = arg.length;
  var clen = document.cookie.length;
  var i = 0;
    while (i < clen) 
    {
      var j = i + alen;
      var sub = document.cookie.substring(i,j);
      if (sub == arg)
      {
         return GetCookieValue(j);
        }
      else i = document.cookie.indexOf(" ", i) + 1;
      if (i == 0) break; 
    }    
    return null;
}