function Cookiemanager(name, defaultExpiration, expirationUnits, defaultDomain, defaultPath) {
  this.name = name;
  this.defaultExpiration = this.getExpiration(defaultExpiration,expirationUnits);
  this.defaultDomain = (defaultDomain)?defaultDomain:(document.domain.search(/[a-zA-Z]/) == -1)?document.domain:document.domain.substring(document.domain.indexOf('.') + 1,document.domain.length);
  this.defaultPath = (defaultPath)?defaultPath:'/';
  this.cookies = new Object();
  this.expiration = new Object();
  this.domain = new Object();
  this.path = new Object();
  window.onunload = new Function (this.name+'.setDocumentCookies();');
  this.getDocumentCookies();
}

Cookiemanager.prototype.getExpiration = function(expiration, units) {

  expiration = (expiration)?expiration:7;
  units = (units)?units:'days';
  var date = new Date();

  switch(units) {
    case 'years':
    date.setFullYear(date.getFullYear() + expiration);
    break;
    case 'months':
    date.setMonth(date.getMonth() + expiration);
    break;
    case 'days':
    date.setTime(date.getTime()+(expiration*24*60*60*1000));
    break;
    case 'hours':
    date.setTime(date.getTime()+(expiration*60*60*1000));
    break;
    case 'minutes':
    date.setTime(date.getTime()+(expiration*60*1000));
    break;
    case 'seconds':
    date.setTime(date.getTime()+(expiration*1000));
    break;
    default:
    date.setTime(date.getTime()+expiration);
    break;
  }
  return date.toGMTString();
}

Cookiemanager.prototype.getDocumentCookies = function() {
  var cookie,pair;
  var cookies = document.cookie.split(';');
  var len = cookies.length;
  for(var i=0;i < len;i++) {
    cookie = cookies[i];
    while (cookie.charAt(0)==' ')
      cookie = cookie.substring(1,cookie.length);
    pair = cookie.split('=');
    this.cookies[pair[0]] = pair[1];
  }
}

Cookiemanager.prototype.setDocumentCookies = function() {

  var expires = '';
  var cookies = '';
  var domain = '';
  var path = '';

  for(var name in this.cookies) {
    expires = (this.expiration[name])?this.expiration[name]:this.defaultExpiration;
    path = (this.path[name])?this.path[name]:this.defaultPath;
    domain = (this.domain[name])?this.domain[name]:this.defaultDomain;
    cookies = name + '=' + this.cookies[name] + '; expires=' + expires + '; path=' + path + '; domain=' + domain;
    document.cookie = cookies;
  }

  return true;
}

Cookiemanager.prototype.getCookie = function(cookieName) {
  var cookie = this.cookies[cookieName];
  return (cookie)?cookie:false;
}

Cookiemanager.prototype.setCookie = function(cookieName, cookieValue, expiration, expirationUnits, domain, path) {
  this.cookies[cookieName] = cookieValue;
  if (expiration)
    this.expiration[cookieName] = this.getExpiration(expiration,expirationUnits);
  if (domain)
    this.domain[cookieName] = domain;
  if (path)
    this.path[cookieName] = path;
  return true;
}

var cookieManager = new Cookiemanager('cookieManager', 1, 'years');