APEX

I recently ran chrome's profiler and it stated that I could speed things up by caching js, css and images. I read up on caching and found out the server can return an 'expires' line and that until that date is reached, the browser will cache the images, etc...

So I am trying to cache in the browser apex's js files, images, etc... I've been unable to find out how to accomplish this.

Any ideas welcome.

Please note, I am not asking about caching regions and pages. I know this is easily done in apex. I want our production site to download css, js and images into the browser cache once (or maybe once a day) and then use those. I've noticed grabbing 150 images and jquery.js, and all the other files downloaded takes significant time, seconds.

-Thanks