Untitled

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1">
  <title>Regenerate Hash page</title>
  <script src="http://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.js" type="text/javascript"></script>
  <link href="http://netdna.bootstrapcdn.com/font-awesome/4.6.1/css/font-awesome.css" rel="stylesheet prefetch" />
</head>
<body>
<script type="text/javascript">
$(document).ready( function() {
        $("#refresh-code").click(function(){

        $.ajax({
               url: "hash.exe.php",
               success: function(html){ alert(html);
                        $(".reg-code > span").html(html);
                },
                error: function (request, status, error) {
                alert(request.responseText);
                }
              });
        });
});
</script>

<p class="reg-code">Hash: <span></span><i class="fa fa-refresh" aria-hidden="true" id="refresh-code"></i></p>

</body>
</html>