[рони]

name_tux,

var n = 4;
	function makeDroppable(e) {
	  e.preventDefault();
	}
	function dragImg(e) {
	  e.dataTransfer.setData("text/plain", e.target.id);
	}
	function dropImg(e) {
	  e.preventDefault();
	  var rdata = e.dataTransfer.getData("text/plain");
	  var x = "draggable-element-" + e.target.innerHTML;
	  if(rdata !=x)return;
	  e.target.innerHTML = "";
	  e.target.appendChild(document.getElementById(rdata))
	  n--;
	  if(!n)alert("win!")
	}