function initDrag() {
  var source = document.getElementById("dragme");
  var dest = document.getElementById("text");
  source.addEventListener("dragstart", function(ev) {
    ev.dataTransfer.setData("text/plain", "Hello");
    return true;
  }, false);
  dest.addEventListener("dragover", function(ev) {
    ev.preventDefault();
    return false;
  }, false);
  dest.addEventListener("drop", function(ev) {
    var text = ev.dataTransfer.getData("text/plain");
    dest.textContent += text;
    ev.stopPropagation();
    return false;
  }, false);
}