js collection & set as homepage

 <script type="text/javascript">
        //收藏本页
        function AddFavorite(sURL, sTitle) {
            try {
                window.external.addFavorite(sURL, sTitle);
            }
            catch (e) {
                try {
                    window.sidebar.addPanel(sTitle, sURL, "");
                }
                catch (e) {
                    alert("加入收藏失败，请使用Ctrl+D进行添加");
                };
            };
        };

        //收藏设置页面（首页）
        function addToFavorite() {
            var d = "http://www.test.com/";
            var c = "测试";
            if (document.all) {
                window.external.AddFavorite(d, c);
            } else {
                if (window.sidebar) {
                    window.sidebar.addPanel(c, d, "");
                } else {
                    alert("对不起，您的浏览器不支持此操作!\n请您使用菜单栏或Ctrl+D收藏本站。");
                }
            }
        }

        //设为首页
        function SetHome(obj) {
            try {
                obj.style.behavior = 'url(#default#homepage)';
                obj.setHomePage('http://www.test.com/');
            } catch (e) {
                if (window.netscape) {
                    try {
                        netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");
                    } catch (e) {
                        alert("抱歉，此操作被浏览器拒绝！\n\n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'");
                    };
                } else {
                    alert("抱歉，您所使用的浏览器无法完成此操作。\n\n您需要手动将'http://www.test.com/'设置为首页。");
                };
            };
        };
    </script>

    <div class="demo">
        <a href="javascript:void(0);" id="setHomePage" onclick="SetHome(this)" style="behavior:url(#default#homepage);">设为首页</a>
        <a href="javascript:addToFavorite()">收藏本页</a>
        <a href="javascript:AddFavorite(document.location.href,document.title);">收藏本页</a>
    </div>