Public health managers in Springfield are hoping to be able to enroll people in Illinois’ opioid alternative program by the end of the month.  Lawmakers agreed last year on a plan to allow people to swap an opioid prescription for a medical marijuana script.  But the Illinois Department of Public Health says the program isn’t ready yet, mainly because the internal paperwork and regulatory structure still aren’t ready.  An IDPH spokeswoman says enrollment is open now, and the hope is to have the rest of the program up and running by the end of the month.