function di20(id, newSrc) {     
    var theImage = FWFindImage(document, id, 0);     
    if (theImage) {     
        theImage.src = newSrc;     
    }     
}          
/* Functions that track and set toggle group button states. */          
function FWFindImage(doc, name, j) {     
    var theImage = false;     
    if (doc.images) {     
        theImage = doc.images[name];     
    }     
    if (theImage) {     
        return theImage;     
    }     
    if (doc.layers) {     
        for (j = 0; j < doc.layers.length; j++) {     
            theImage = FWFindImage(doc.layers[j].document, name, 0);     
            if (theImage) {     
                return (theImage);     
            }     
        }     
    }     
    return (false);     
}