RewriteEngine on
RewriteCond %{HTTP_REFERER} !^http://(www\.)?dragonneo\.com [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?dragonneo\.net [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?ktab\.tv [NC]
RewriteCond %{HTTP_REFERER} !^http://(www\.)?ktabtv\.com [NC]
RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} ^http://.*$
RewriteRule \.(jpe?g|gif|bmp|png)$ http://dragonneo.net/images/directlinks.gif [L]