In a case of first impression, a state appeals panel has ruled that the earnings of a parent’s S corporation should not be counted as income in calculating child-support payments. Deepalakshmi Moorthy and Channa Mallik Arjuna were married from December 2000 through June 2003 and had a daughter together in March 2002. As part of a divorce judgment in Cook County Circuit Court, Moorthy received full custody of their daughter, and Arjuna was ordered to pay 20 percent of his $45,000 income as an employee of …