function bookmarkThisPage(url,title) {
    if (!title) title = document.title;
    if ((navigator.appName == "Microsoft Internet Explorer") && (parseInt(navigator.appVersion) >= 4)) {
        window.external.AddFavorite(url,title);
    } else if (navigator.appName == "Netscape" && window.sidebar) {
        window.sidebar.addPanel(title,url,"");
    } else {
        alert("Press CTRL-D (Netscape) or CTRL-T (Opera) to bookmark");
    }
}

function popupwin(url, w, h)
{
    window.open(url, '','scrollbars=yes,width=' + w + ',height=' + h);
}