image instead of color

[justhaveaquestion]

Forum URL: lovemychihuahua.proboards23.com

Would someone please end my frustration. I've been searching for the answer, but can't seem to find it. I'm sure it's right in front of my face. My question is, how do I make my background of a certain section of my boards an image instead of a color? I don't want all the sections of my boards to be this image, just this certain one (rainbow bridge). Thanks in advance and sorry for being such a doofus.

[iDunk]

What exactly do you want changed?
-Computerpros

[kapt]

Global Footer:

<script type="text/javascript">
<!--
/*
Main page/boards image highlight

Created by Peter

This code cannot be reposted at anywhere other than SSDesigns or ProBoards, without permission.

This header must stay intact at all times.
*/

// Image for the mouseover
var overImage = "URL OF IMAGE GOES HERE";

var iCell = document.getElementsByTagName("td");

for(c = 0; c < iCell.length; c ++){
if(iCell.item(c).className.match(/^windowbg/i) && iCell.item(c).width.match(/^(66|48|43)%/)){
if(document.all){
iCell.item(c).onmouseenter = function(){
this.style.backgroundImage = "url('" + overImage + "')";
}
iCell.item(c).onmouseleave = function(){
this.style.backgroundImage = "";
}
} else {
for(a = 0; a < iCell.item(c).attributes.length; a ++){
if(iCell.item(c).attributes.item(a).nodeName.match(/^onmouseover$/i)){
with(iCell.item(c).attributes.item(a)){
nodeValue = "this.style.backgroundImage = 'url(\\'" + overImage + "\\')'; " + nodeValue;
}
}
if(iCell.item(c).attributes.item(a).nodeName.match(/^onmouseout$/i)){
with(iCell.item(c).attributes.item(a)){
nodeValue = "this.style.backgroundImage = ''; " + nodeValue;
}
}
}
}
}
}

//-->
</script>

Kapt~`'-