In GNU Emacs it is possible to figure out the "age" of a buffer, using the variable buffer-display-time*. Does XEmacs have something similar? * buffer-display-time's value is (15475 21452 293193) Local in buffer *scratch*; global value is nil Automatically becomes buffer-local when set in any fashion. Documentation: Time stamp updated each time this buffer is displayed in a window. The function `set-window-buffer' updates this variable to the value obtained by calling `current-time'. -- John Paul Wallington