auto timetable generator

I am runing training courses with a couple of friends , we need to schedule our courses based on books and chapters of the book , however we are not around every day so we tend to teach a few chapters wich may take a day or tow days based on how many periods we assigned for those chapters , then anther instructor will continoue doing some chapters until the course finish . So we are not looking for normal timetable plan where it is available at the market , we need special design timetable based on course name , number of books , each book divided to number of chapters , each chapter has didcated number of periods , given by number of teachers , who should do almost the same time of teaching periods .