// Common cookie functions
// Includes referr code

// name - name of the cookie
// value - value of the cookie
// [expires] - expiration date of the cookie (defaults to end of current session)
// [path] - path for which the cookie is valid (defaults to path of calling document)
// [domain] - domain for which the cookie is valid (defaults to domain of calling document)
// [secure] - Boolean value indicating if the cookie transmission requires a secure transmission
// * an argument defaults when it is assigned null as a placeholder
// * a null placeholder is not required for trailing omitted arguments
function setCookie(name, value, expires, path, domain, secure) {
  var curCookie = name + "=" + escape(value) +
      ((expires) ? "; expires=" + expires.toGMTString() : "") +
      ((path) ? "; path=" + path : "") +
      ((domain) ? "; domain=" + domain : "") +
      ((secure) ? "; secure" : "");
  document.cookie = curCookie;
}

// name - name of the desired cookie
// * return string containing value of specified cookie or null if cookie does not exist
function getCookie(name) {
  var dc = document.cookie;
  var prefix = name + "=";
  var begin = dc.indexOf("; " + prefix);
  if (begin == -1) {
    begin = dc.indexOf(prefix);
    if (begin != 0) return null;
  } else
    begin += 2;
  var end = document.cookie.indexOf(";", begin);
  if (end == -1)
    end = dc.length;
  return unescape(dc.substring(begin + prefix.length, end));
}

// name - name of the cookie
// [path] - path of the cookie (must be same as path used to create cookie)
// [domain] - domain of the cookie (must be same as domain used to create cookie)
// * path and domain default if assigned null or omitted if no explicit argument proceeds
function deleteCookie(name, path, domain) {
  if (getCookie(name)) {
    document.cookie = name + "=" + 
    ((path) ? "; path=" + path : "") +
    ((domain) ? "; domain=" + domain : "") +
    "; expires=Thu, 01-Jan-70 00:00:01 GMT";
  }
}

// date - any instance of the Date object
// * hand all instances of the Date object to this function for "repairs"
function fixDate(date) {
  var base = new Date(0);
  var skew = base.getTime();
  if (skew > 0)
    date.setTime(date.getTime() - skew);
}


// JavaScript Cookie Code
// Tracks Reffering URL, Timestamp
// by Web Wizard

var cDomain = self.location.hostname;
if(cDomain.indexOf(".") < cDomain.lastIndexOf(".")){
  var domainOffset = cDomain.indexOf(".")+1
  cDomain = cDomain.substr(domainOffset);
}

// cDomain is the location domain
// if Referrer domain isn't self and Referrer isn't empty and cookie does not contain a referrer = update cookie
// if(document.referrer.indexOf(cDomain)==-1 && document.referrer!="" && document.cookie.indexOf("referrer=")==-1){
// Now - if Referrer domain isn't self and Referrer isn't empty = update cookie
//if((document.referrer.indexOf(cDomain) == -1) && (document.referrer != "")){
// if Referrer domain isn't self - update cookie

if(document.referrer.indexOf(cDomain) == -1){
var expDays = 90;
var exp = new Date(); 
exp.setTime(exp.getTime() + (expDays*24*60*60*1000));
var refdate = new Date();
// Set Cookie
document.cookie = "referrer=" + escape(document.referrer + "&&&" + refdate.toGMTString()) + "; expires=" + exp.toGMTString() + "; path=/" + "; domain=" + cDomain;
}

var allCookies = document.cookie;
var cPos = allCookies.indexOf("referrer=");
if(cPos != -1){
var cdstart = cPos + 9;
var cdend = allCookies.indexOf(";", cdstart);
if(cdend == -1) cdend = allCookies.length;
var cookieContent = allCookies.substring(cdstart,cdend);
cookieContent = unescape(cookieContent);
var cdatestart = cookieContent.indexOf("&&&", 0);
var cdateend = cookieContent.length;
var cRefer = cookieContent.substring(0,cdatestart);
var cDateRef = cookieContent.substring(cdatestart +2,cdateend)
}
else{
var cRefer = "No cookie";
var cDateRef = "No cookie";
}