+ <B>o</B> Because editing operations change the content of the buffer to
+ correspond to the window, you should not rely on using buffers
+ for long-term storage of form data.
+
+ The function <B>set_field_status</B> sets the associated status flag of <I>field</I>;
+ <B>field_status</B> gets the current value. The status flag is set to a
+ nonzero value whenever the field changes.
+
+ The function <B>set_max_field</B> sets the maximum size for a dynamic field.
+ An argument of 0 turns off any maximum size threshold for that field.