RewriteEngine On
RewriteRule (jsClasses)_(.*)\.js$ $1.js

# Remove lines below if your apache don't support mod_headers

<FilesMatch "\.js\.gz$">
ForceType text/javascript
Header set Content-Encoding: gzip
</FilesMatch>
<FilesMatch "jsClasses\.js$">
RewriteEngine On
RewriteCond %{HTTP:Accept-Encoding} gzip [OR]
RewriteCond %{HTTP:TE} gzip
RewriteCond %{REQUEST_FILENAME}.gz -f
RewriteRule (.*)\.js$ $1\.js.gz [L]
ForceType text/javascript
</FilesMatch>

