if (navigator.org == 'netscape') {
    document.layers["bg"].clip.height = document.layers["fg"].clip.height;
    document.layers["bg"].clip.bottom = document.layers["fg"].clip.bottom;
    document.write('<img src="/images/spacer.gif" width="1" height="' + document.layers["fg"].clip.height + '" border="0" alt="">');
}