How to create an image side border on the main content area

[blueuniverse]

Fairly self explanatory title. What I want is an image border to hug the left and right sides of my main content area (i.e. the whole block down the page from (<!-- content table -->) in the html).

How would I go about doing this?

[Fraik]

Well, if its anything like I think you mean, here's how I did it:

1: Make a background picture thats just a few px high but as wide as your forum is including the graphic borders
2: Create a new div class in your css file, make sure to give it a background and width property
3: Open the new div class in your header, and then close it in your footer.

Here's how the class is defined in my CSS:
.bg {
background-image: url(images/gradients/forumbg.jpg);
align: center;
margin: 0px auto;
width: 985px;
}