I am aware that you can put a separate footer onto a specific page by adding in that footer in a template folder that is named for the page.

But can you do that for loading css or jscript files as well by adding in a html_header.php file? I thought that made sense but doesn't work. Is my only alternative to put in php into the html header file?

Can you give me a general set of guidelines as to what can be used in this fashion besides the footer?