SetEnvIF Referer        ^$ local_allow
SetEnvIF Referer        "ssanweb.com" local_allow
SetEnvIF Referer        "(.*\.)?ssanweb.com" local_allow
<FilesMatch "\.(jpg|jpeg|gif|png|exe|zip|rar|gz|mp[0-9]|wmv|avi|mpg)$">
        Order deny,allow
        allow from env=local_allow
        deny from all
</FilesMatch>