<script language="JavaScript" type="text/javascript">    
// Example:    
// writeCookie("myCookie", "my name", 24);    
// Stores the string "my name" in the cookie "myCookie" which expires after 24 hours.    
function writeCookie(name, value, hours)    
{    
  var expire = "";    
  if(hours != null)    
  {    
    expire = new Date((new Date()).getTime() + hours * 3600000);    
    expire = "; expires=" + expire.toGMTString();    
  }    
  document.cookie = name + "=" + escape(value) + expire;    
}    
// Example:    
// alert( readCookie("myCookie" ;    
function readCookie(name)    
{    
  var cookieValue = "";    
  var search = name + "=";    
  if(document.cookie.length > 0)    
  {     
    offset = document.cookie.indexOf(search);    
    if (offset != -1)    
    {     
      offset += search.length;    
      end = document.cookie.indexOf(";", offset);    
      if (end == -1) end = document.cookie.length;    
      cookieValue = unescape(document.cookie.substring(offset, end))    
    }    
  }    
  return cookieValue;    
}    
</script>  