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 http://kopen.marktplaats.nl/opensearch.php?b=1&amp;q=koi&amp;g=395&amp;u=425&amp;ts=0&amp;pa=1&amp;t=1&amp;s=10; (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="http://kopen.marktplaats.nl/opensearch.php?b=1&amp;q=koi&amp;g=395&amp;u=425&amp;ts=0&amp;pa=1&amp;t=1&amp;s=10">http://kopen.marktplaats.nl/opensearch.php?b=1&amp;q=koi&amp;g=395&amp;u=425&amp;ts=0&amp;pa=1&amp;t=1&amp;s=10</a> works first in your browser and that the feed passes a <a href="http://feedvalidator.org/check.cgi?url=http%3A%2F%2Fkopen.marktplaats.nl%2Fopensearch.php%3Fb%3D1%26amp%3Bq%3Dkoi%26amp%3Bg%3D395%26amp%3Bu%3D425%26amp%3Bts%3D0%26amp%3Bpa%3D1%26amp%3Bt%3D1%26amp%3Bs%3D10">validator test</a>.</p></div>');