var drop = document.getElementById('drop');

 drop.ondrop = function (event)
 {
  event = event || window.event;
  this.innerHTML += "<p>" + event.dataTransfer.getData("Text") + "</p>";
  event.cancelBubble = true;
  return false;
 };
 function cancelEvent () { return false; };

 drop.ondragover = function () { return false; };
 drop.ondragenter = cancelEvent;
 drop.ondragover = cancelEvent;

 var imgs = document.getElementsByTagName('img'),
     i = imgs.length;
 while (i--)
 {
  imgs[i].ondragstart = function (event)
  {
   event = event || window.event;
   event.dataTransfer.setData('Text', this.getAttribute('alt'));
  };
 }