in reply to Suggestions for Tk login screen

Can't you just open it as a child window initially or minimize your main window and open a new window and pass the information back? Or even just start with something like the graphic you linked to, pass the information and destroy the window, and move on.

Useless trivia: In the 2004 Las Vegas phone book there are approximately 28 pages of ads for massage, but almost 200 for lawyers.