var jsCode = '';

jsCode += '<'+'a href="http://www.isoregister.com/buyads/createAds.php" ta';
jsCode += 'rget="_blank" title="Place your own banner here"><'+'img src="h';
jsCode += 'ttp://www.isoregister.com/resources/adbannersd/728x90/defaul';
jsCode += 't.jpg" alt="Place your own banner here" border="0" /><'+'/a>';

document.write(jsCode);