function showBlock(id) {
    document.getElementById(id).style.display = "block";
}
function hideBlock(id) {
    document.getElementById(id).style.display = "none";
}
function showDetail(width, height, uri) {
    var scroll = "no";
    var top = 0, left = 0;
    if ( width > screen.width - 10 || height > screen.height - 28 ) scroll = "yes";
    if ( height < screen.height - 28 ) top = Math.floor((screen.height - height) / 2 -  14);
    if ( width < screen.width - 10 ) left = Math.floor((screen.width - width) / 2 - 5);
    width = Math.min(width, screen.width - 10);
    height = Math.min(height, screen.height - 28);
    var wnd = window.open(uri, "", "scrollbars=yes,resizable=yes,width=" + width + ",height=" + height + ",left=" + left + ",top=" + top);
    wnd.document.close();
}