How do you set cache-control for static (gif, jpg) resources

[Keith Bottner]

I am trying to find out how I can set my static content for images,
javascript and css to have a different cache-control setting. It appears
that Tomcat always returns Cache-Control: no-cache with every response. I
want to specify certain static resources such as gif and jpg to have
Cache-Control: public,max-age=7200.
 
Does anyone know how to configure Tomcat to do this? I have Googled
everywhere with no luck!
 
Keith