Add ndn-ping example.
diff --git a/js/examples/ndnping/ndn-ping.html b/js/examples/ndnping/ndn-ping.html
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+++ b/js/examples/ndnping/ndn-ping.html
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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN"
+"http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
+<!--
+ See COPYING for copyright and distribution information.
+-->
+<html>
+<head>
+<title>NDN Ping</title>
+
+<!--
+ ndn-js.js
+ is a concatented, compressed version of the library,
+ built in tools/build
+-->
+<script type="text/javascript" src="ndn-js.js"></script>
+<script type="text/javascript" src="ndn-ping.js"></script>
+
+</head>
+
+<body>
+
+ <h1>NDN Ping example</h1>
+
+ Using ping responder on NDN testbed, which responds to Interests in <em>
+ /<topo-prefix>/ping/<random-number></em>.
+
+ <h2>NDN Testbed Status</h2>
+ <p>Testbed content ping results retrieved using <a href="http://github.com/remap/ndn-js">NDN.js</a>, a javascript client library for NDN.</p>
+ <table border="0" width="40%" id="pingreport" style="margin-left:20px">
+ </table>
+ <p> </p>
+
+
+</body>
+</html>