Thank you for responding to my previous message. Another suggestion that occurs to me is this: let's say a teacher teaches a common subject to two groups at the same time in the same room. Then, in the time table's final HTML output, both groups are printed in the vertical time slots, which makes it appear a little crowded. Printing just one group in each vertical time slots would be feasible, in my opinion. Please try to make it happen.
Regards!
Regards!