if ($listing['custom_7_allow'] AND !empty($listing['custom_7'])) { 
           
             $youtubecode= '<object width="250" height="190"><param name="movie" value="http://www.youtube.com/v/YOUTUBECODE?fs=1&amp;hl=en_US&amp;rel=0"></param><param name="allowFullScreen" value="true"></param><param name="allowscriptaccess" value="always"></param><embed src="http://www.youtube.com/v/YOUTUBECODE?fs=1&amp;hl=en_US&amp;rel=0" type="application/x-shockwave-flash" allowscriptaccess="always" allowfullscreen="true" width="250" height="190"></embed></object>';

$youtube = str_replace('YOUTUBECODE', $listing['custom_7'],$youtubecode);
$template_content->set('youtube', $youtube);
}