Want to help me achieve "Zen?"

Hello,

I posted this before but I've done a little more digging and can ask my question with a little more specificity. For the sake of discussion, I know CSS and XHTML fairly well but am a novice (at best) at PHP.

My problem is that I'm having trouble getting my site to display a right sidebar only, as opposed to a left sidebar. I also want to go about it correctly so I don't break anything because I'll need some pages to display a small sidebar on the left as well.

My understanding right now is that Zen allows for body classes of "two-sidebars," "sidebar-left" and "sidebar-right." I believe that what I need to do is set the XHTML and PHP to work together to display the page with the "sidebar-right" body class. These selectors are all present and editable in zen.css.

When I go to template.php I see ifelse statements that apply the appropriate sidebar body class to the applicable variable.

In the page.tpl.php file I find a php command telling the body class to be written in the code.

Now, here is my problem. It's probably my lack of knowledge of PHP, but if I read this right then $body_classes is a variable but I don't know how to find out where that body class is determined, when in template.php all of the body classes are listed.

If I could find where I am able to choose the body class that is to be "printed" in page.tpl.php then I'm pretty sure I'd have the answer to my problem, by setting the "template-right" body class to the page.

I feel like I'm getting close to closing the gap in the circle, anybody care to help me close the last part of the gap? Or am I running in the wrong direction?

Thanks.