(function() {
try {
    var pid = '28678';
    var pidParam = 'pid';
    var tid = 'skrypt';
    var tidParam = "tid";
    var hosts = ['ceneo.pl', 'www.ceneo.pl', 'm.ceneo.pl'];

    var checkLinks = function() {
        var links = document.getElementsByTagName('a');
        for (var i = 0; i < links.length; i++) {
            if (!links[i].href)
                continue;
            var url = new URL(links[i].href);
            if (hosts.includes(url.host)) {
                if (!url.href.includes(pidParam + '=')) {
                    if (url.hash)
                        url.hash += '&';
                     url.hash += pidParam + '=' + pid + '&' + tidParam + '=' + tid;

                    links[i].href = url.href;
                }
            }
        }
    }
    
    window.addEventListener('load', function() {
        checkLinks();
        var body = document.body;
        var config = {
            attributes: true,
            childList: true,
            subtree: true
        };
        var observer = new MutationObserver(checkLinks);
        observer.observe(body, config);
    });
    } catch (e) {}
})()