YUI: Overlay with rounded corners & a knob

This is a test. This is a test. This is a test. This is a test. This is a test.

The HTML

The Javascript

The CSS

#dlg {
    width: 250px;
    height: 150px;
    background-color: #F9F9F9;
    border: 1px solid #636363;
    margin: 0;
    padding: 0;
    position: absolute;
    overflow: visible;
}
#dlg .hd {
    display: none;
}
#dlg .bd {
    padding: .25em;
}
#dlg .corner_tr {
    background-image: url( graphics/tr.gif);
    position: absolute;
    background-repeat: no-repeat;
    top: -1px;
    right: -1px;
    height: 4px;
    width: 4px;
}
#dlg .corner_tl {
    background-image: url( graphics/tl.gif);
    background-repeat: no-repeat;
    position: absolute;
    top: -1px;
    left: -1px;
    height: 4px;
    width: 4px;
}
#dlg .corner_br {
    background-image: url( graphics/br.gif);
    position: absolute;
    background-repeat: no-repeat;
    bottom: -1px;
    right: -1px;
    height: 4px;
    width: 4px;
}
#dlg .corner_bl {
    background-image: url( graphics/bl.gif);
    background-repeat: no-repeat;
    position: absolute;
    bottom: -1px;
    left: -1px;
    height: 4px;
    width: 4px;
}

#dlg .knob {
    background-image: url( graphics/knob.png);
    background-repeat: no-repeat;
    position: absolute;
    top: 60px;
    z-index: 999;
    right: -14px;
    height: 18px;
    width: 14px;
}