Close a Frameset in LotusScript

I have searched the forumns and do not see the answer to what would seem to be an easy question. How do you close a frameset using lotusscript. I am making a button to be mailed out that will open a specific frameset on a database. This is not the main frameset set to launch on open, so when I have the open database part… the default frameset opens. The second line of my code it to open the frameset that I want. i am trying to come up with a thrid line that will close the original frameset. Or alternatively, an easier way to accomplish what I am trying to do. Many thanks for your assistance.

Here is my code thus far:

Dim workspace As New NotesUIWorkspace

Call workspace.OpenDatabase _

( “SRV/Apps”, “TeamDb.NSF”, “”, _

"", False, False ) 'Main Frameset Opens

Call workspace.OpenframeSet(“Alternative”)

'Need code to close Main Frameset