Problem with 2 Datepickers On Same Page

Problem with 2 Datepickers On Same Page

I'm new to Datepicker and cannot seem to get 2 Datepickers on one page to work using your example. The first one works but not the second one. This should be simple! Here's the code:

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>jQuery UI Datepicker - Default functionality</title>
  <link rel="stylesheet" href="//code.jquery.com/ui/1.11.4/themes/smoothness/jquery-ui.css">
  <script src="//code.jquery.com/jquery-1.10.2.js"></script>
  <script src="//code.jquery.com/ui/1.11.4/jquery-ui.js"></script>
  <link rel="stylesheet" href="/resources/demos/style.css">
  <script>
  $(function() {
    $( "#datepicker" ).datepicker();
  });
  </script>
 
</head>
<body>
<div>
<p>Start Date: <input type="text" id="datepicker"></p>
</div>
<div>
 <p>End Date: <input type="text" id="datepicker"></p>
</div>
 
</body>
</html