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

        // key and at least value given, set cookie...
        if (arguments.length > 1 && (!/Object/.test(Object.prototype.toString.call(value)) || value === null || value === undefined)) {
            options = $.extend({}, options);

            if (value === null || value === undefined) {
                options.expires = -1;
            }

            if (typeof options.expires === 'number') {
                var days = options.expires,
                    t = options.expires = new Date();
                t.setDate(t.getDate() + days);
            }

            value = String(value);

            return (document.cookie = [
            encodeURIComponent(key), '=', options.raw ? value : encodeURIComponent(value), options.expires ? '; expires=' + options.expires.toUTCString() : '', 
            options.path ? '; path=' + options.path : '', options.domain ? '; domain=' + options.domain : '', options.secure ? '; secure' : ''].join(''));
        }
        options = value || {};
        var decode = options.raw ?
        function (s) {
            return s;
        } : decodeURIComponent;

        var pairs = document.cookie.split('; ');
        for (var i = 0, pair; pair = pairs[i] && pairs[i].split('='); i++) {
            if (decode(pair[0]) === key) return decode(pair[1] || ''); 
        }
        return null;
    };
})(jQuery);