Htaccess - anti-pic-hot-link excl. subdomains

Hi,

The code mentioned below is great....

RewriteCond %{HTTP_REFERER} !^$
RewriteCond %{HTTP_REFERER} !^http://(www\.)?mysite\.com/.*$ [NC]
RewriteRule .*\.(gif|jpg)$ - [F,L]

However, I would like to have a subdomain, like sub.mysite.com, and show pictures on it....

Can you help me?

Thanks,
Jerome

Found it,

RewriteCond %{HTTP_REFERER} !^http://(www\.)?mysite\.com/.*$ [NC]

Need to be rewritten as:

RewriteCond %{HTTP_REFERER} !^http://(www|sub\.)?mysite\.com/.*$ [NC]

Thanks anyway