Setting Users Permission

[Lean]

Hi,
i recently create a database wich has a log in screen what i want is that
when a user logs in, he/she just see a specific form so they cannot
see/change other users data. Im using Access 2003 and this is the code when
the user enter the username and password a form is displayed


Private Sub cboEmployee_AfterUpdate()
'After selecting user name set focus to password field
Me.txtPassword.SetFocus
End Sub

Private Sub cmdLogin_Click()

'Check to see if data is entered into the UserName combo box

If IsNull(Me.cboEmployee) Or Me.cboEmployee = "" Then
MsgBox "You must enter a User Name.", vbOKOnly, "Required Data"
Me.cboEmployee.SetFocus
Exit Sub
End If

'Check to see if data is entered into the password box

If IsNull(Me.txtPassword) Or Me.txtPassword = "" Then
MsgBox "You must enter a Password.", vbOKOnly, "Required Data"
Me.txtPassword.SetFocus
Exit Sub
End If

'Check value of password in tblEmployees to see if this
'matches value chosen in combo box

If Me.txtPassword.Value = DLookup("strEmpPassword", "tblEmployees", _
"[lngEmpID]=" & Me.cboEmployee.Value) Then

lngMyEmpID = Me.cboEmployee.Value

'Close logon form and open splash screen

DoCmd.Close acForm, "frmLogon", acSaveNo
DoCmd.OpenForm "TodayLeads"

Else
MsgBox "Password Invalid. Please Try Again", vbOKOnly, _
"Invalid Entry!"
Me.txtPassword.SetFocus
End If

'If User Enters incorrect password 3 times database will shutdown

intLogonAttempts = intLogonAttempts + 1
If intLogonAttempts > 3 Then
MsgBox "You do not have access to this database.Please contact
admin.", _
vbCritical, "Restricted Access!"
Application.Quit
End If

End Sub