function getWikihowAdUnit($num)
{
global $wgUser, $wgLanguageCode;
if ($wgLanguageCode == "en") {
$channelArray = self::getCustomGoogleChannels('adunit' . $num, false);
$channels = $channelArray[0];
} else {
$channels = self::getInternationalChannels();
}
$params = self::getCSIParameters($num);
if ($params['slot'] == null || $params['width'] == null || $params['height'] == null || $params['max_ads'] == null) {
//we don't have the required information, so lets spit out an error message
$tmpl = new EasyTemplate(dirname(__FILE__));
$tmpl->set_vars(array('adId' => $num, 'params' => $params));
$s = $tmpl->execute('wikihowError.tmpl.php');
} else {
$tmpl = new EasyTemplate(dirname(__FILE__));
$tmpl->set_vars(array('adId' => $num, 'channels' => $channels, 'params' => $params));
if (wikihowAds::isABTestArticle()) {
$s = $tmpl->execute('wikihowAdAsync.tmpl.php');
} else {
$s = $tmpl->execute('wikihowAdCSI.tmpl.php');
}
$s = "<div class='wh_ad'>" . $s . "</div>";
}
return $s;
}