<!DOCTYPE html>
<head>
<title>Recipe</title>
<script src="html5.js"></script>
<script>

window.onload=function() {
  var imgString = "";

  // find all articles 
  var articles = document.getElementsByTagName('article');

  // find all images in articles 
  for (var i = 0; i < articles.length; i++) {
     var imgs = articles[i].getElementsByTagName('img');
 
     // print out src
     for (var j = 0; j < imgs.length; j++) {
       var img = imgs[j];
       imgString+=img.src + "<br />";
     }
   }
   document.getElementById("result").innerHTML=imgString;
}
</script>

</head>
<body>
<div id="result"></div>
<article>
<p><img src="http://image.music.naver.net/album/204/000/001/1846.jpg" alt="" /></p>
<p><img src="http://image.music.naver.net/album/204/000/000/153.jpg" alt="" /></p>
<p><img src="http://image.music.naver.net/album/204/000/150/150563.jpg" alt="" /></p>

</article>
<article>
<p><img src="http://image.music.naver.net/album/204/000/001/1003.jpg" alt="" /></p>
</article>
</body>
// Code goes here

/* Styles go here */