document.write('<div class="rss-box">');
document.write('<p class="rss-item"><em>Error:</em> Feed failed! Causes may be (1) No data  found for RSS feed https://www.e-stredovek.cz/forum/app.php/smartfeed/feed?f=12&amp;f=3&amp;f=13&amp;f=5&amp;f=14&amp;f=6&amp;f=9&amp;f=7&amp;f=8&amp;f=20&amp;t=2&amp;x=10&amp;s=4&amp;i=10&amp;y=2&amp;d=3&amp;w=10&amp;fn=1; (2) There are no items are available for this feed; (3) The RSS feed does not validate.<br /><br /> Please verify that the URL <a href="https://www.e-stredovek.cz/forum/app.php/smartfeed/feed?f=12&amp;f=3&amp;f=13&amp;f=5&amp;f=14&amp;f=6&amp;f=9&amp;f=7&amp;f=8&amp;f=20&amp;t=2&amp;x=10&amp;s=4&amp;i=10&amp;y=2&amp;d=3&amp;w=10&amp;fn=1">https://www.e-stredovek.cz/forum/app.php/smartfeed/feed?f=12&amp;f=3&amp;f=13&amp;f=5&amp;f=14&amp;f=6&amp;f=9&amp;f=7&amp;f=8&amp;f=20&amp;t=2&amp;x=10&amp;s=4&amp;i=10&amp;y=2&amp;d=3&amp;w=10&amp;fn=1</a> works first in your browser and that the feed passes a <a href="http://feedvalidator.org/check.cgi?url=https%3A%2F%2Fwww.e-stredovek.cz%2Fforum%2Fapp.php%2Fsmartfeed%2Ffeed%3Ff%3D12%26amp%3Bf%3D3%26amp%3Bf%3D13%26amp%3Bf%3D5%26amp%3Bf%3D14%26amp%3Bf%3D6%26amp%3Bf%3D9%26amp%3Bf%3D7%26amp%3Bf%3D8%26amp%3Bf%3D20%26amp%3Bt%3D2%26amp%3Bx%3D10%26amp%3Bs%3D4%26amp%3Bi%3D10%26amp%3By%3D2%26amp%3Bd%3D3%26amp%3Bw%3D10%26amp%3Bfn%3D1">validator test</a>.</p></div>');