Remove border on *just* sidebox *headers*??

I wanted to know if it was possible to not have a border on the sidebox header, but have a border everywhere else on the sidebox.

My reason is because I'm using a custom background image for my sidebox header which has rounded corners, but having the border makes it not look right on the header.

I dont want to remove the border completely, but only remove it on the header area.

Thanks.
Here's a screenshot for reference:
http://i36.tinypic.com/2enz69h.png

You can cut the red part from here:

.leftBoxContainer, .rightBoxContainer {
margin: 0em;
border: 1px solid #9a9a9a;
border-bottom: 5px solid #336633;
margin-top: 1.5em;
}

and paste it here:

.sideBoxContent {
background-color: #ffffff;
padding: 0.4em;

}

stevesh:

You can cut the red part from here:

.leftBoxContainer, .rightBoxContainer {
margin: 0em;
border: 1px solid #9a9a9a;
border-bottom: 5px solid #336633;
margin-top: 1.5em;
}

and paste it here:

.sideBoxContent {
background-color: #ffffff;
padding: 0.4em;

}

Well I'll be damned.
It worked. Thank you sir!