jQuery validation with HTML5 browser validation fallback

file.html

<!-- jQuery -->
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery/2.0.3/jquery.min.js"></script>
<script>window.jQuery || document.write('<script src="/js/vendor/jquery-2.0.3.min.js"><\x3C/script>')</script>

<!-- jQuery Validate -->
<script src="//cdnjs.cloudflare.com/ajax/libs/jquery-validate/1.11.1/jquery.validate.min.js"></script>
<script>window.jQuery.validator || document.write('<script src="/js/vendor/jquery.validate-1.11.1.min.js"><\x3C/script>')</script>

<script>
    // DOM ready
    $(function() {
        // Check dependencies
        if(window.jQuery && window.jQuery.validator) {
            // Disable native validation
            $('form').attr('novalidate', 'novalidate');
        }
    });
</script>