IE 取虚拟目录名称和绝对路径的获取

//获取网站虚拟目录名称
function GetVirtualDirectoryName() {
    var pathname = location.pathname;
    var pos = pathname.indexOf(‘/‘);
    return pathname.substr(0, pos);
}
//获取网站标头
//绝对路径的时候使用
function GetHeader() {
    var host = location.host;
    var dirName = GetVirtualDirectoryName();
    return "http://" + host + "/" + dirName;
}