So I have one include on a site working, but I want to be able to change multiple ones based on different link clicks. Basically I want to be able to "skin" a site with a different color theme with the different includes (I think) being A) Content, B) Header Image, and C) CSS Style. I've played around with it and searched online but couldn't find a good tutorial, and I'm not that great at creating code from scratch. Any suggestions? Thanks.