I'm not sure if this is the most appropriate place to post, so please redirect me if necessary.

I am hosting an Intranet site in which users sign into their computer using their Active Directory account. As part of a network operations convenience, we would like to have a page of this site available for us to access and load different applications that are not readily available to the end user. The final idea is that, as "Joe User" is signed into his/her computer, we can just go to the intranet site, navigate to the Net Ops page, and sign in using our Active Directory cradentials and load applications. This will avoid the hassell of signing a user off, and signing ourselves on.

1)Does this make sense?
2)Is this possible?
3)How do I make a sign in page that pulls from Active Directory?