You can choose to show the banner only to visitors from EU countries. In order to achieve this, you need to install the <a href="http://drupal.org/project/smart_ip">smart_ip</a> module or enable the <a href="http://www.php.net/manual/en/function.geoip-country-code-by-name.php">geoip_country_code_by_name()</a> PHP function.