

Tk file selector, based on work by Mario J Silva 
(msilva@mercenary.cs.berkeley.edu).

The file selector mimicks Framemaker's file selector.

fileselect [command] [purpose] [windowname]

After selecting OK, "command" will be executed, with the name of the
toplevel window that the file selector is using and the name of the
file that was selected.

If "purpose" is defined, it will be displayed in the request box.

If "windowname" is defined, it will be used as the name of the toplevel
window.  If not, it will default to ".file_select".
