Introducing Javascript

Currently, the Markov GUI works only for 8 possible states, and I have considered that in the future I may want to change this. Perhaps I will want just 4 states for simple basslines, or 16 states for octave-spanning melodies. Either way, I had no idea how this would be possible as the code,

(edit: I settled on using just 8 states... I will keep the option in mind)