js设为首页和加入收藏

function setAsHomePage(url) {
    if (document.all) { // For IE
        document.body.style.behavior = 'url(#default#homepage)';
        document.body.setHomePage(url);
    } else if (window.sidebar) { // For Firefox
        if (window.netscape) {
            try {
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
            } catch (e) {
                alert("此操作被浏览器拒绝！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'");
            }
        }
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage', url);
    } else {
        alert("您的浏览器不支持自动设置首页，请手动设置！");
    }
}

function addToFavorites(title, url) {
    if (window.sidebar && window.sidebar.addPanel) { // For Firefox
        window.sidebar.addPanel(title, url, "");
    } else if (document.all) { // For IE
        window.external.AddFavorite(url, title);
    } else if (window.opera && window.print) { // For Opera
        return true;
    } else {
        alert('请按 Ctrl+D 将本页加入书签');
    }
}