Saves the document that is currently open in this application to a different file.
[Visual Basic .NET] Public Sub SaveAsDocument ( _ [ByVal saveAsPath As String], _ [ByVal saveAsCopy As Boolean] _ )
saveAsPath is a string representing a new path and filename for the document that is being saved. [Optional]
saveAsCopy specify True if you want to save a copy of the document to a new filename but keep the original document open in the application; otherwise False. [Optional]
Note, this method does not work in ArcCatalog.