使用Windows身份验证与PHP？

情景：

我有一个网站，需要将安全和访问时异地的区域。我希望用户输入用于工作在Web表单进行登录的用户名和密码。表单将发送用户名和密码来验证它。如果它工作在用户登录

I have a area of a website that needs to be secure and accessible when offsite. I want the user to enter the username and password used to login at work in a web form. The form will send the username and password to authenticate it. If it works the user is logged in.

我需要使用的一种形式而不是弹出登录框。 PHP是preferred但我很灵活。任何想法，我指出了正确的方向？

I need to use a form not a pop-up login box. PHP is preferred but I'm flexible. Any ideas to point me in the right direction?

我的雇主，他们已经建立了一个使用弹出框几个安全区域。我需要的东西来完成我需要使用Web表单。

My employer has a few secure areas they have set up that uses the "pop-up box". For what I need to accomplish I need to use a web form.