Timer Code

I wrote the following simple code in a form's event procedures, in order to create a splash screen for my application. The form remains open all the time, I meant it to close after cnt>10. I checked with message boxes and it seems that cnt never increases to more than 1. Any ideas why ?

Private Sub Form_Load()
Dim cnt As Integer
Me.TimerInterval = 1000 'timer interval 1 second
cnt = 0
End Sub

Private Sub Form_Timer()
Dim cnt As Integer
cnt = cnt + 1
If cnt > 10 Then
Me.TimerInterval = 0
DoCmd.Close acForm, Me.Name 'here I want the form to close
End If
End Sub

Where can one find what terms such as acForm, Me.Name, acPreview etc mean ?