1 /**

     2  * jQuery Cookie plugin

     3  *

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

     5  * Dual licensed under the MIT and GPL licenses:

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

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

     8  *

     9  */

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

    11 

    12     // key and at least value given, set cookie...

    13     if (arguments.length > 1 && String(value) !== "[object Object]") {

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

    15 

    16         if (value === null || value === undefined) {

    17             options.expires = -1;

    18         }

    19 

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

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

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

    23         }

    24 

    25         value = String(value);

    26 

    27         return (document.cookie = [

    28             encodeURIComponent(key), '=',

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

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

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

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

    33             options.secure ? '; secure' : ''

    34         ].join(''));

    35     }

    36 

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

    38     options = value || {};

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

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

    41 };