设为首页+添加收藏ie6，ie7，ie8，Firefox

<script language="JavaScript">  
    <!--   
    /**   
     * 添加收藏 
     * @param {} sURL 收藏链接地址   
     * @param {} sTitle 收藏标题   
     */   
   function addBookmark(url, title) { 
    if(document.all) { 
        try
        { 
            window.external.addFavorite(url, title); 
        } 
        catch (e1) 
        { 
            try
            { 
                window.external.addToFavoritesBar(url, title); 
            } 
            catch (e2) 
            {
                alert('加入收藏失败，请您手工加入。') 
            } 
        } 
    } else if (window.external) {
        window.sidebar.addPanel(title, url,""); 
    } else { 
        alert('加入收藏失败，请您手工加入。')
    }
   
    }  

    /**   
     * 设为首页
     * @param {} obj 当前对象，一般是使用this引用。   
     * @param {} vrl 主页URL   
     */   
    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("此操作被浏览器拒绝！/n请在浏览器地址栏输入“about:config”并回车/n然后将 [signed.applets.codebase_principal_support]的值设置为'true',双击即可。");   
                }   
                var prefs = Components.classes['@mozilla.org/preferences-service;1']   
                        .getService(Components.interfaces.nsIPrefBranch);   
                prefs.setCharPref('browser.startup.homepage', vrl);   
            }   
        }   
    }   
    //-->  
    </script>