RewriteEngine on
##RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://dragonmun.com/.*$     [NC]
RewriteCond %{HTTP_REFERER} !^http://www.dragonmun.com/.*$  [NC]
RewriteCond %{HTTP_REFERER} !^http://dragonmun.irev.net/.*$  [NC]
RewriteRule .*\.(gif|GIF|jpg|JPG)$        -                  [F]
##RewriteRule \.(gif|GIF|jpg|JPG)$ http://goatse.cx/hello.jpg [R,L]