function addMyFavor() {
    if (document.all)
        window.external.addFavorite(getDomainName(),getTitleName());
    else if (window.sidebar)
        window.sidebar.addPanel(getTitleName(), getDomainName(), "");
}

function setHomepage() {
    if (document.all) {
        document.body.style.behavior='url(#default#homepage)';
        document.body.setHomePage(getDomainName());
    } else if (window.sidebar) {
        if(window.netscape) {
            try { 
                netscape.security.PrivilegeManager.enablePrivilege("UniversalXPConnect"); 
            }  catch (e)  { 
                alert( "该操作被浏览器拒绝，如果想启用该功能，请在地址栏内输入 about:config,然后将项 signed.applets.codebase_principal_support 值该为true" ); 
                return false;
            }
        }
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components. interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage', getDomainName());
    }
}

function getDomainName() {
    return window.location.href;
}

function getTitleName() {
    return document.getElementsByTagName('title')[0].innerHTML;
}