function On(name) {

    if (document.images) {

        document.images['def'].src = name;

    }

}

function Off() {

}

function submitData( nId, strBackUrl ) {
    document.detailform.backurl.value = strBackUrl;
    document.detailform.action = 'detail.html?id=' + nId;
    document.detailform.submit();
}