User Logins & Access Levels

I have a database where I have customized the user login function. My table (tblEmployees) contains four fields (lngEmpID, strEmpName, strEmpPassword, strAccess). When launched, the user selects their EmpName from a combo-box and enters their EmpPassword.

What I cannot figure out is how to get their Access (access level: Admin, User, Viewer) from tblEmployee and use it to limit buttons, forms and user data (allow the user to edit their data in a form, but not see other's).

I tried using DLookup() in the form Load event:

('strAccessLevel = DLookup("[strAccess]", "[tblEmployees]", "lngEmpID = lngMyEmpID"))

But I appear to be way off. I am trying to use lngEmpID determined at login (lngMyEmpID is a variable set in a separate module).

How do I get the data from Access (field in tblEmployees) to use in a form's Load event in order to limit button, form access to non-Admin users? How do I filter tblEmployee data in form based on the EmpID or EmpName logged in?

Thanks.

Jeff Monroe