could you explain in a few words what are those functions?

i didnt really understand what did you program in the last massage was supposed to do... and where is the bug.. but nevermind, i got the concept i think....

instead of a[16], b,c,d,e........ i should write chartype[16] for exmp? to keep it organized?
and the enum ans switch are for the same purpose? just to keep it easy to view? would it be better if it would just be shorter??

thanks alot for your replay!!
moshe