Activate window by name in MS-Word

Sub GenerateGlossary()
Dim strSource As String
Dim strDestination As String
Dim strGlossaryName As String

strSource = ActiveWindow.Caption
strGlossaryName = "word"

Documents.Add
ActiveDocument.SaveAs FileName:=strGlossaryName, FileFormat:=wdFormatDocument
strDestination = ActiveWindow.Caption
Windows(strSource).Activate
End Sub