/*jslint browser: true */ /*global jQuery: true */



/**

* jQuery Cookie plugin

*

* Copyright (c) 2010 Klaus Hartl (stilbuero.de)

* Dual licensed under the MIT and GPL licenses:

* http://www.opensource.org/licenses/mit-license.php

* http://www.gnu.org/licenses/gpl.html

*

*/



// TODO JsDoc



/**

* Create a cookie with the given key and value and other optional parameters.

*

* @example $.cookie('the_cookie', 'the_value');

* @desc Set the value of a cookie.

* @example $.cookie('the_cookie', 'the_value', { expires: 7, path: '/', domain: 'jquery.com', secure: true });

* @desc Create a cookie with all available options.

* @example $.cookie('the_cookie', 'the_value');

* @desc Create a session cookie.

* @example $.cookie('the_cookie', null);

* @desc Delete a cookie by passing null as value. Keep in mind that you have to use the same path and domain

* used when the cookie was set.

*

* @param String key The key of the cookie.

* @param String value The value of the cookie.

* @param Object options An object literal containing key/value pairs to provide optional cookie attributes.

* @option Number|Date expires Either an integer specifying the expiration date from now on in days or a Date object.

* If a negative value is specified (e.g. a date in the past), the cookie will be deleted.

* If set to null or omitted, the cookie will be a session cookie and will not be retained

* when the the browser exits.

* @option String path The value of the path atribute of the cookie (default: path of page that created the cookie).

* @option String domain The value of the domain attribute of the cookie (default: domain of page that created the cookie).

* @option Boolean secure If true, the secure attribute of the cookie will be set and the cookie transmission will

* require a secure protocol (like HTTPS).

* @type undefined

*

* @name $.cookie

* @cat Plugins/Cookie

* @author Klaus Hartl/klaus.hartl@stilbuero.de

*/



/**

* Get the value of a cookie with the given key.

*

* @example $.cookie('the_cookie');

* @desc Get the value of a cookie.

*

* @param String key The key of the cookie.

* @return The value of the cookie.

* @type String

*

* @name $.cookie

* @cat Plugins/Cookie

* @author Klaus Hartl/klaus.hartl@stilbuero.de

*/

jQuery.cookie = function (key, value, options) {



    // key and value given, set cookie...

    if (arguments.length > 1 && (value === null || typeof value !== "object")) {

        options = jQuery.extend({}, options);



        if (value === null) {

            options.expires = -1;

        }



        if (typeof options.expires === 'number') {

            var days = options.expires, t = options.expires = new Date();

            t.setDate(t.getDate() + days);

        }



        return (document.cookie = [

            encodeURIComponent(key), '=',

            options.raw ? String(value) : encodeURIComponent(String(value)),

            options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE

            options.path ? '; path=' + options.path : '',

            options.domain ? '; domain=' + options.domain : '',

            options.secure ? '; secure' : ''

        ].join(''));

    }



    // key and possibly options given, get cookie...

    options = value || {};

    var result, decode = options.raw ? function (s) { return s; } : decodeURIComponent;

    return (result = new RegExp('(?:^|; )' + encodeURIComponent(key) + '=([^;]*)').exec(document.cookie)) ? decode(result[1]) : null;

};