They are appointed by district courts.
Illinois general assembly
The congress
im pretty sure it is the executive branch. the president is the one who chooses the people that become judges
The registered voters of Illinois.
9 is it a total of 5 judges
They are elected.
As of 2013, there are over one thousand judges in Illinois. Some of the names of the judges are Brad K. Bleyer, Mark M. Boie, Mark H. Clarke, and James R. Moore.
The President of the United States nominates judges for the Supreme Court "by and with the advice and consent of the Senate" (Article 2 of the Constitution).
This question makes no sense. Do you mean what qualifications do they need? Some Illinois judges are elected and some are appointed. Those that are elected go up for retention periodically and people get to vote whether to retain them (none are ever not retained no matter how bad they may be).
Judges may be appointed by the governor to fill a vacancy until the term is up for election, but normally they are elected.
The president nominates supreme court judges, and the legislative branch chooses from those nominees. The Legislative branch can write laws, but the President can veto them.
Circuit Judges are elected to office for a 6 year term.