reverted images function

HISTORY.md

@@ -25,6 +25,7 @@ http://visjs.org
 - Added getBoundingBox method.
 - Community fix for SVG images in IE11, thanks @dponch!
 - Fixed repeating stabilized event when the network is already stabilized.
+- Added circularImages, thanks for the contribution @brendon1982!
 
 ### Graph2d
 

lib/network/Images.js

@@ -23,11 +23,10 @@ Images.prototype.setOnloadCallback = function(callback) {
  * @return {Image} img          The image object
  */
 Images.prototype.load = function(url, brokenUrl) {
-  var img = this.images[url];
-  if (img === undefined) {
+  if (this.images[url] == undefined) {
     // create the image
     var me = this;
-    img = new Image();
+    var img = new Image();
     img.onload = function () {
 
       // IE11 fix -- thanks dponch!