var Cookie = {
  get: function(name) {
   if (document.cookie.length == 0) return false;
   var _start = document.cookie.indexOf(name+"=");
   if (_start < 0) return false;
    _start  += name.length+1;
    var _end = document.cookie.indexOf(';', _start);
    if (_end==-1) _end = document.cookie.length;
    return unescape(document.cookie.substring(_start,_end));
  },
  destroy: function(name) {
    if (Cookie.get(name)) {
      document.cookie = name+'=;expires=Thu, 01-Jan-70 00:00:01 GMT';
    }
  },
  set: function(name, value, expires, path, domain) {
    if (name.indexOf('=') != -1) return;
    var cookieString = name + '=' + escape(value);
    if (expires) cookieString += '; expires=' + expires.toGMTString();
    if (path) cookieString += '; path=' + path;
    if (domain) cookieString += '; domain=' + domain;
    document.cookie = cookieString;
  }
}