AddType "text/javascript;charset=UTF-8" .jgz .js
AddEncoding gzip .jgz

<IfModule expires_module>
    ExpiresActive On
    ExpiresDefault A86400
</IfModule>

<IfModule rewrite_module>
    RewriteEngine on
    #RewriteCond %{HTTP_USER_AGENT} ".*Safari.*" [OR]
    RewriteCond %{HTTP_USER_AGENT} ".*MSIE 6.*" [OR]
    RewriteCond %{HTTP:Accept-Encoding} !gzip
    RewriteRule (.*)\.jgz$ $1.js [L]
</IfModule>