Stylesheet switcher tutorial

Hi everyone,
I would like to ask the class if somebody is interested in a small tutorial explaining how to have alternative stylesheet and be able to switch to it from within the page. I talked about it in my previous posts. If anyone has such desire to do it on his own website, I think it would be helpful if I post step be step procedure how to do that ( Of course it can be done in different ways, I’ll post my version).