function addCookie() {

    var aUrls = document.URL.split("/");
    var vDomainName = "http://" + aUrls[2] + "/";
    var description = document.title;

    if (document.all) {
        window.external.addFavorite(vDomainName, description);
    }
    else if (window.sidebar) {
        window.sidebar.addPanel(aUrls, document.URL, "");

    }
}

function setHomepage() {

    var aUrls = document.URL.split("/");
    var vDomainName = "http://" + aUrls[2] + "/";
    var description = document.title;

    if (document.all) {
        document.body.style.behavior = 'url(#default#homepage)';
        document.body.setHomePage(vDomainName);

    }
    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");
            }
        }
        var prefs = Components.classes['@mozilla.org/preferences-service;1'].getService(Components.interfaces.nsIPrefBranch);
        prefs.setCharPref('browser.startup.homepage', vDomainName);
    }
}

function myjump(myObj) {
    if (myObj.selectedIndex > 0) {
        myurl = myObj.options[myObj.selectedIndex].value;
        window.open(myurl, "newwin");
    }
}