js实现html中的收藏或加入首页

    <script type="text/javascript">
    function SetHome(obj) {
        try {
            obj.style.behavior = 'url(#default#homepage)';
            obj.setHomePage('http://www.baidu.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.baidu.com/'设置为首页。");
            }
        }
    }
    function AddFavorite() {
        if (document.all) {
            window.external.addFavorite('http://www.baidu.com', '百度');
        }
        else if (window.sidebar) {
        window.sidebar.addPanel('百度', 'http://www.baidu.com', "");
        }
    }
</script>


  <img src="images/fav.gif" align=absmiddle /><a href="#" onClick="javascript:AddFavorite();">加入收藏</a>
    <img src="images/home.gif" align=absmiddle /><a href="#" onClick="javascript:SetHome(this);">设为首页</a>






<a target="_self" href="链接地址" onClick="this.style.behavior='url(#default#homepage)';this.setHomePage('链接地址');">设为首页</a>
<a href="链接地址" onClick="window.external.AddFavorite(document.location.href,document.title)">加入收藏</a>