function openPopup(url) {
    window.open(url, "popup_id", "scrollbars,resizable,width=300,height=400");
    return false;
}

function openPopup(url, width, height) {
    window.open(url, "popup_id", "scrollbars,resizable,width=" + width + ",height=" + height);
    return false;
}

function drucken(notify) {
    if (window.print) {
        window.print();
        window.close();
    } else {
        window.alert(notify);
        window.close();
    }
}