function favorite(URL, title)
{
    try
    {
        window.external.addFavorite(URL, title);
    }
    catch (e)
    {
        try
        {
            window.sidebar.addPanel(title, URL, "");
        }
        catch (e)
        {
            alert("加入收藏失败，请使用Ctrl+D进行添加");
        }
    }
}
function homePage(obj,val)
{
  try{
                obj.style.behavior='url(#default#homepage)';
                obj.setHomePage(val);
        }
        catch(e){
                if(window.netscape) {
                        try {
                                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect");  
                        }  
                        catch (e)  { 
                                alert("此操作被浏览器拒绝！");  
                        }
                        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService
(Components.interfaces.nsIPrefBranch);
                        prefs.setCharPref('browser.startup.homepage',val);
                 }
        }
 }