function SetHome(obj, vrl) {
    try {
        obj.style.behavior = 'url(#default#homepage)'; obj.setHomePage(vrl);
    }
    catch (e) {
        if (window.netscape) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            }
            catch (e) {
                alert("抱歉！您的浏览器不支持直接设为首页。请在浏览器地址栏输入“about:config”并回车然后将 [signed.applets.codebase_principal_support]设置为“true”，点击“加入收藏”后忽略安全提示，即可设置成功。");
            }
            var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
            prefs.setCharPref('browser.startup.homepage', vrl);
        }
    }
}

function addBookmark(title, url) {
    if (document.all) {
        window.external.AddFavorite(url, title);
    } else if (window.sidebar) {
        window.sidebar.addPanel(title, url, "");
    } else if (window.opera && window.print) {
        return true;
    }
}