Windows 2003 AD and Login Scripts

I am running a 7 site, 1 domain Windows 2003 Active Directory domain. I have a user that floats between two offices and needs drive mappings to servers at each location. The problem is that the drive letters that are mapped are the same at both locations (H and S). Is there a way through the login script that I can connect him to the proper server depending the site that he logs in from?