<?xml version="1.0" encoding="utf-8"?>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Cross frame drag and drop: helper file</title>
<style type="text/css">
div
  {width:0;
  height:0;
  border:solid 50px silver;
  border-radius:50px;
  margin-left:auto;}
</style>
<script type="application/ecmascript">
var step = 1;
function start(event)
  {if(step++ == 1)
    {setColor('green silver silver silver');}
  else
    {step = 0;
    setColor('maroon');
    say('Dragstart should be first event to fire.')}
  }
function leavePage(event)
  {if(step++ > 1)
    {setColor('green green silver silver')}
  else
    {step = 0;
    setColor('maroon');
    say('Dragleave should fire after dragstart.')}
  }
function endDrag(event)
  {if(step++ > 2)
    {setColor('green')}
  else
    {step = 0;
    setColor('maroon');
    say('Dragend should fire after dragstart and dragleave.')}
  }
function say(it)
  {document.querySelector('pre').appendChild(document.createTextNode(it + '\n'))}
function setColor(c)
  {document.querySelector('div').setAttribute('style','border-color:' + c)}
</script>
</head>
<body onload="window.getSelection().selectAllChildren(document.querySelector('p'))" ondragleave="leavePage(event)">
<p ondragstart="start(event)" ondragend="endDrag(event)">Drag me</p>
<p>Drag selected text out of frame and drop it somewhere on the page. Both circles should turn green once text is dropped.</p>
<div/>
<pre/>
</body>
</html>