By default, if you use the template tag included with Ajax Validation, the script will be placed inside HTML <script> tags and served up this way. This is usually fine for development, however for production it is reccomended you serve Ajax Validation with your seperate static media server.
To do this you should copy the jquery-ajax-validation.js file from ajax_validation/static/js/ and put it somewhere in the directory structure where the rest of your site’s static media is. You should then replace all instances of {% include_validation %} with:
<script type="text/javascript" src="PATH_TO_FILE_HERE"></script>
where PATH_TO_FILE_HERE is the location your media server is serving the file from.