[miltorg]

mv = document.querySelectorAll("[id^=v]");
mk = document.querySelectorAll("[id^=k]");

for (let i=0; i < mv.length; i++) {
  mv[i].ondrop = drop_handler;
  mv[i].ondragover = dragover_handler;
  }

for (i=0; i < mk.length; i++) {
  mk[i].ondragstart = dragstart_handler;  
  mk[i].ondragend = dragend_handler;
  }