// foo is <td id="foo">
var o = document.getElementById('foo');
var s = o.style;
s.background =  "url('a.gif')";
s.backgroundRepeat = "repeat";

if (typeof s == 'object') {
   for(key in s) document.writeln(key+':'+s[key]);
}

  
var baseImg = "BASE IMAGE URL";
var headImg = "HEAD IMAGE URL";

function headBase(theTable){
var pTD = theTable.parentNode;
if(pTD.firstChild.nodeName == "DIV"){
return false;
}
var hDiv = document.createElement("div");
hDiv.align = "center";
var hImg = new Image();
hImg.src = headImg;
hDiv.appendChild(hImg);
var bDiv = hDiv.cloneNode(true);
bDiv.firstChild.src = baseImg;
pTD.insertBefore(hDiv, theTable);
if(theTable.nextSibling){
pTD.insertBefore(bDiv, theTable.nextSibling);
}else{
pTD.appendChild(bDiv);
}
}

var iTable = document.getElementsByTagName("table");
if(location.href.match(/com|index.cgi/)){
for(t=4; t<iTable.length; t++){
if(iTable[t].width == "100%" && iTable[t].className == "bordercolor"){
            headBase(iTable[t]);
        }
    }
}