Uncaught ReferenceError: jquery is not defined at index:19

Uncaught ReferenceError: jquery is not defined at index:19

<!DOCTYPE html>
<html lang="en">
<head>

<meta http-equiv="X-UA-Compatible" content="IE=edge">

<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1" />
<meta name="description" content="Neon Admin Panel" />
<meta name="author" content="" />

<link rel="icon" href="<?php echo base_url();?>assets2/images/favicon.ico">

<title> ADMIN </title>



<script type="text/javascript">
var $ = jquery.noConflict(); //line 19
$(document).ready(function() {
$('.fancybox').fancybox();
});
</script>
<script type="text/javascript" src="<?php echo base_url();?>fancybox/lib/jquery-1.10.2.min.js"></script>
<script type="text/javascript" src="<?php echo base_url();?>assets2/js/jquery-1.11.3.min.js"></script>
<script type="text/javascript" src="<?php echo base_url();?>fancybox/source/jquery.fancybox.pack.js?v=2.1.6"></script>
<link rel="stylesheet" href="<?php echo base_url();?>fancybox/source/jquery.fancybox.css?v=2.1.6" type="text/css" media="screen" />


<td><?php echo $c['TGL_LAHIR']; ?></td>
<td><a class="fancybox" href="<?php echo base_url();?>foto/<?php echo $c['FOTO'];?>"><img class="fancybox" src="<?php echo base_url();?>foto/"  /></a></td>