jQuery 2 and fallback for jQuery 1.9

jQuery.js

<!--[if lte IE 8]>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script>
    <script>window.jQuery || document.write('<script src="assets/js/vendor/jquery-1.10.2.min.js"><\/script>')</script>
<![endif]-->
 
<!--[if gt IE 8]><!-->
    <script src="//ajax.googleapis.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
    <script>window.jQuery || document.write('<script src="assets/js/vendor/jquery-2.0.3.min.js"><\/script>')</script>
<!--<![endif]-->