var Cookie = {
	data : {},
	options : {
		expires : 1,
		domain : "",
		path : "",
		secure : false
	},

	init : function(options, data) {
		Cookie.options = Object.extend(Cookie.options, options || {});

		var payload = Cookie.retrieve();
		if (payload) {
			Cookie.data = payload.evalJSON();
		} else {
			Cookie.data = data || {};
		}
		Cookie.store();
	},
	getData : function(key) {
		return Cookie.data[key];
	},
	setData : function(key, value) {
		Cookie.data[key] = value;
		Cookie.store();
	},
	removeData : function(key) {
		delete Cookie.data[key];
		Cookie.store();
	},
	retrieve : function() {
		var start = document.cookie.indexOf(Cookie.options.name + "=");

		if (start == -1) {
			return null;
		}
		if (Cookie.options.name != document.cookie.substr(start,
				Cookie.options.name.length)) {
			return null;
		}

		var len = start + Cookie.options.name.length + 1;
		var end = document.cookie.indexOf(';', len);

		if (end == -1) {
			end = document.cookie.length;
		}
		return unescape(document.cookie.substring(len, end));
	},
	store : function() {
		var expires = '';

		if (Cookie.options.expires) {
			var today = new Date();
			expires = Cookie.options.expires * 86400000;
			expires = ';expires=' + new Date(today.getTime() + expires);
		}

		document.cookie = Cookie.options.name + '='
				+ escape(Object.toJSON(Cookie.data)) + Cookie.getOptions()
				+ expires;
	},
	erase : function() {
		document.cookie = Cookie.options.name + '=' + Cookie.getOptions()
				+ ';expires=Thu, 01-Jan-1970 00:00:01 GMT';
	},
	getOptions : function() {
		return (Cookie.options.path ? ';path=' + Cookie.options.path : '')
				+ (Cookie.options.domain ? ';domain=' + Cookie.options.domain
						: '') + (Cookie.options.secure ? ';secure' : '');
	}
};