function Cookie(document, name, hours, path, domain, secure)
{
  this.$document = document;
  this.$name = name;
  if (hours)
    this.$expiration = new Date((new Date()).getTime() + hours*3600000);
  else this.$expiration = null;
  if (path) this.$path = path; else this.$path = null;
  if (domain) this.$domain = domain; else this.$domain = null;
  if (secure) this.$secure = true; else this.$secure = false;

  this.write = writeCookie;
  this.read = readCookie;
  this.remove = removeCookie;
}

function writeCookie()
{
  var cookieval = "";
  for (var prop in this)
  {
    if ((prop.charAt(0) == '$') || ((typeof this[prop] == 'function')))
      continue;
    if (cookieval != "") cookieval += '&';
    cookieval += prop + ':' + escape(this[prop]);
  }

  var cookie = this.$name + '=' + cookieval;
  if (this.$expiration) cookie += '; expires=' + this.$expiration.toGMTString();
  if (this.$path) cookie += '; path=' + this.$path;
  if (this.$domain) cookie += '; domain=' + this.$domain;
  if (this.$secure) cookie += '; secure';

  this.$document.cookie = cookie;
}

function readCookie()
{
  var allcookies = this.$document.cookie;
  if (allcookies == "") return false;

  var start = allcookies.indexOf(this.$name + '=');
  if (start == -1) return false;
  start += this.$name.length + 1;
  var end = allcookies.indexOf(';', start);
  if (end == -1) end = allcookies.length;
  var cookieval = allcookies.substring(start, end);

  var a = cookieval.split('&');
  for (var i=0; i < a.length; i++)
    a[i] = a[i].split(':');

  for (var i=0; i < a.length; i++)
  {
    this[a[i][0]] = unescape(a[i][1]);
  }

  return true;
}

function removeCookie()
{
  var cookie;
  cookie = this.$name + '=';
  if (this.$path) cookie += '; path=' + this.$path;
  if (this.$domain) cookie += '; domain=' + this.$domain;
  cookie += '; expires=Fri, 02-Jan-1970 00:00:00 GMT';

  this.$document.cookie = cookie;
}