10.7. Managing Existing Windows
After windows are created, the application may wish to manage them. A simple example is the File | Inspect a Window menu option of the DOM Inspector, which picks up a window for study. An even simpler example is the bottom half of the Window menu in most Mozilla applications, which moves the focus between windows.
Trying to juggle multiple windows can lead to very bad design. In most cases, the user can close a window at any time. This wipes out all the state of that window (except possibly for Java applets and shared XPCOM objects). It is difficult to maintain a rational design when state can disappear arbitrarily. Generally speaking, an application should have one master window, with any other required windows ...
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