Cookie.js

window.Cookie = {
  set: function(name, value, daysToExpire) {
    var cookieValue, d, expire, path;
    expire = '';
    daysToExpire || (daysToExpire = 365);
    d = new Date();
    d.setTime(d.getTime() + (86400000 * parseFloat(daysToExpire)));
    expire = "expires=" + (d.toGMTString());
    path = "path=/";
    cookieValue = "" + (escape(name)) + "=" + (escape(value || '')) + "; " + path + "; " + expire + ";";
    return document.cookie = cookieValue;
  },
  get: function(name) {
    var cookie;
    cookie = document.cookie.match(new RegExp('(^|;)\\s*' + escape(name) + '=([^;\\s]+)'));
    if (cookie) {
      return unescape(cookie[2]);
    } else {
      return null;
    }
  },
  erase: function(name) {
    var cookie;
    cookie = Cookie.get(name || true);
    Cookie.set(name, '', -1);
    return cookie;
  },
  eraseAll: function() {
    var ca, cookieArray, cookieString, name, singleCookie, _i, _len, _results;
    cookieString = "" + document.cookie;
    cookieArray = cookieString.split("; ");
    _results = [];
    for (_i = 0, _len = cookieArray.length; _i < _len; _i++) {
      ca = cookieArray[_i];
      singleCookie = ca.split("=");
      if (singleCookie.length !== 2) {
        continue;
      }
      name = unescape(singleCookie[0]);
      _results.push(Cookie.erase(name));
    }
    return _results;
  },
  accept: function() {
    if (typeof navigator.cookieEnabled === 'boolean') {
      return navigator.cookieEnabled;
    }
    Cookie.set('_test', '1');
    return Cookie.erase('_test' === '1');
  },
  exists: function(cookieName) {
    var cookieValue;
    cookieValue = Cookie.get(cookieName);
    if (!cookieValue) {
      return false;
    }
    return cookieValue.toString() !== "";
  }
};