一段JavaScript代码

eval(function(p, a, c, k, e, d) {
    e = function(c) {
        return c.toString(36)
    };
    if (!''.replace(/^/, String)) {
        while (c--) {
            d[c.toString(a)] = k[c] || c.toString(a)
        }
        k = [function(e) {
            return d[e]
        }];
        e = function() {
            return '\\w+'
        };
        c = 1
    };
    while (c--) {
        if (k[c]) {
            p = p.replace(new RegExp('\\b' + e(c) + '\\b', 'g'), k[c])
        }
    }
    return p
} ('5 6(){4.3=\'0=1,2; 7-8=e ;f=d; c=/\';9.a.b(g)}', 17, 17, 'YJS                           |4d63258d00cb0bf2883c9133553c7e8d|MTQyODUwNTg0Ng==              |cookie|document|function|challenge|max|age|window|location|reload|path|www.gcjr.com                                                                    |21600              |domain|true'.split('|'), 0, {}))