#overlay{ 
    background-image: url(/i/overlay.png);
    position: absolute;
    top: 0px;
    left: 0px;
    z-index: 90000;
    width: 100%;
    height: 100%;
}

* html #overlay{
    background-color: #333;
    background-color: transparent;
    background-image: url(blank.gif);
    filter: progid:DXImageTransform.Microsoft.AlphaImageLoader(
        src="/i/overlay.png", sizingMethod="scale");
}

#box{
    width:220px;
    background:#2d2d2d;
    padding:10px;
    border:2px solid #eee;
}

#close{
    position:absolute;
    top:-5px;
    right:-5px;
    cursor:pointer;
}