How to cache only a part of a view (included views)?

[eluser]CroNiX[/eluser]
He might mean cache as in render the partial view to a file, which is what I do, and not necessarily "browser cache". I have some UL trees with links that are fairly db/code intensive to generate, as they deal with a hierarchy of USA/State/Region/Area/City. I "pre render" those to the filesystem and then just include them when generating the final view. It sped up the process of generating a page by about 4x not having to generate those partials from scratch each time. Then on top of that, the final output uses CI's caching, but a modified version.

I just created a new folder in the views folder, and then include(APPPATH . 'views/folder/statename.php');