<!-- SCRIPT FOR CREATING A COOKIE AND SETTING EXPIRY DATE -->
<!-- hide from old browsers
function getCookieExpireDate(noDays){
  var today = new Date()
 var expr = new Date(today.getTime()+noDays*24*60*60*1000)
  return  expr.toGMTString()
  }
function makeCookie(name, data, noDays){
  var cookieStr = name + "="+ data
  if (makeCookie.arguments.length > 2){
    cookieStr += "; expires=" + getCookieExpireDate(noDays)
    }
  document.cookie = cookieStr
  } //-->


<!-- SCRIPT FOR READING COOKIE -->
<!-- hide from old browsers
<!-- Get user information -->

function readCookie(cookieName){
   var searchName = cookieName + "="
   var cookies = document.cookie
   var start = cookies.indexOf(cookieName)
   if (start == -1){ // cookie not found 
     return ""
     }
   start += searchName.length //start of the cookie data
   var end = cookies.indexOf(";", start)
   if (end == -1){
     end = cookies.length
     }
   return cookies.substring(start, end)
   }
//-->


<!-- SCRIPT THAT DETERMINES THE CURRENT USER epi -->
<!-- hide from old browsers
<!-- Get user information -->
var temp=location.search.substr(1).split("?");
var epi="none"
var user
if (temp!=""&&temp!="user=") 
	{user=location.search.substr(1).split("?");
         epi=user[0].split("=")[1];}
else
	{epi=readCookie("epi");
       if (epi=="")
          {epi="none"};
       user="user="+epi;}

makeCookie("epi",epi,14600)
//-->