% ret = tk_yesno(text [, default])
%
% Open a window with 'text' printed and asking for YES or NO, the
% default being 'default'. The return value is 0 for YES and 1 for NO
% (the default if 'default' is not specified)
%
% see also: tk_dialog
CROSS-REFERENCE INFORMATION
This function calls:
tk_dialog % value = tk_dialog(title, text, bitmap, default, ...)
