function partsbox_onMouseOver(obj)
{
    obj.style.border = '1px solid #000000';
    var imgname = obj.id + "img";
    var imgu = document.getElementById(imgname);
    imgu.src = 'img/'+imgname+'-on.jpg';
}
function partsbox_onMouseOut(obj)
{
    obj.style.border = '1px solid #cccccc';
    var imgname = obj.id + "img";
    var imgu = document.getElementById(imgname);
    imgu.src = 'img/'+imgname+'-off.jpg';
}