(805 ILCS 105/108.25) (from Ch. 32, par. 108.25)

Sec. 108.25.

Notice of directors' meetings.

Meetings of
the board of directors shall be held upon such notice as the
bylaws may prescribe.  Attendance of a director at any
meeting shall constitute a waiver of notice of such meeting
except where a director attends a meeting for the express
purpose of objecting to the transaction of any business
because the meeting is not lawfully called or convened.
Unless provided otherwise in the articles of incorporation
or the bylaws, neither the business to be transacted at,
nor the purpose of, any regular or special meeting of the
board of directors need be specified in the notice or waiver
of notice of such meeting, except that no special meeting of
directors may remove a director under Section 108.35(b) of
this Act unless written notice of the proposed removal is
delivered to all directors at least twenty days prior to
such meeting.

(Source: P.A. 84-1423.)