//set homepage
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);  
        }  
    }  
}  
//加入收藏
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");  
        }  
    }  
}