(735 ILCS 5/14-103) (from Ch. 110, par. 14-103)
Sec. 14-103. Defendant to plead. Every defendant who is served with summons shall answer or otherwise plead on or before the return day of the summons, unless the time for doing so is extended by the court. If the defendant defaults, judgment by default may be entered by the court. No matters not germane to the distinctive purpose of the proceeding shall be introduced by joinder, counterclaim or otherwise.
(Source: P.A. 90-655, eff. 7-30-98.)