/* requires prototype.js */

var Cookie = {
  /*
   * Options:
   * - expires: number of days from now
   * - path: request path, defaults to '/'
   * - domain: domain name
   * - secure: true or false
   */
  set: function(name, value) {
    var options = Object.extend($H({
      path: '/'
    }), arguments[2] || {});
    var cookie = escape(name) + '=' + escape(value || '');
    if(options.expires == false) {
      cookie += '; expires=' + new Date(2038, 0, 17, 19, 14, 07).toGMTString();
    } else if(options.expires) {
      var d = new Date();
      d.setTime(d.getTime() + (86400000 * parseFloat(options.expires)));
      cookie += '; expires=' + d.toGMTString();
    }
    if(options.path)   cookie += '; path=' + options.path;
    if(options.domain) cookie += '; domain=' + options.domain;
    if(options.secure) cookie += '; secure';
    return (document.cookie = cookie);
  },
  get: function(name) {
    var cookie = document.cookie.match(new RegExp('(^|;)\\s*' + escape(name) + '=([^;\\s]*)'));
    return (cookie ? unescape(cookie[2]) : null);
  },
  all: function() {
    return document.cookie.split(/\s*;\s*/).collect(function(cookie) { return cookie.split('=')[0] });
  },
  erase: function(name) {
    var cookie = Cookie.get(name) || true;
    Cookie.set(name, '', {expires: -1});
    return cookie;
  },
  accept: function() {
    if (typeof navigator.cookieEnabled == 'boolean') {
      return navigator.cookieEnabled;
    }
    Cookie.set('_test', '1');
    return (Cookie.erase('_test') === '1');
  }
};