FlickrのPublic Feedを表示するプログラム

gistfile1.html

<button id="listKeio" onclick=getFromWikipedia()>List</button>
<div id="listOfKeio"></div>
<script type="text/javascript">
function jsonFlickrFeed(json) {
  var e = document.getElementById('listOfKeio');
  var i = 0;
  while(i < json.items.length){
    var photo = json.items[i];
        var imageURL = photo.media.m;
        var imgTag = '<img src="' + imageURL + '">';
    e.innerHTML += i + ": " + imgTag + "<br>";
        i = i + 1;
  }
}
 
function getFromWikipedia() {
  var e = document.getElementById('listOfKeio');
  var o = document.createElement("script");
      o.setAttribute("src", "http://api.flickr.com/services/feeds/photos_public.gne?format=json");
  e.appendChild(o);
}
</script>