Word VBA code to insert a document footer in all sections of a document

I'm trying to write some VBA to automate the process of stripping out the first 13  characters of the document name and insert that result as a right-justified footer in all sections of my document.  Everything works EXCEPT I can get the for each loop to work for all the other sections of the document.  Here is my code.   I know it's something to do with the footer properties that I'm missing that casuing it not to work in all sections.  Any help would be greatly appreiciated!

oboefajitaman

Sub stripdocumentname()
 
    Dim namelcase As String
    Dim sec As Section
     
    namelcase = LCase(Mid(ActiveDocument.Name, 13))
                       
        If ActiveWindow.View.SplitSpecial <> wdPaneNone Then
            ActiveWindow.Panes(2).Close
        End If
       
        If ActiveWindow.ActivePane.View.Type = wdNormalView Or ActiveWindow. _
            ActivePane.View.Type = wdOutlineView Then
            ActiveWindow.ActivePane.View.Type = wdPrintView
        End If
       
        For Each sec In ActiveDocument.Sections
            ActiveDocument.PageSetup.DifferentFirstPageHeaderFooter = False
            ActiveWindow.ActivePane.View.SeekView = wdSeekCurrentPageFooter
            Selection.ParagraphFormat.Alignment = wdAlignParagraphRight
            Selection.InsertBefore (namelcase)
            Selection.Font.Size = 7
            ActiveWindow.ActivePane.View.SeekView = wdSeekMainDocument
        Next sec

End Sub