<http://schema.org/description>
"I like using the same PHP script for both AJAX and non-AJAX content requests. Using one script just makes everything easier because it\u2019s only one file to update/edit and it\u2019s one more cache-able request."^^<http://www.w3.org/2001/XMLSchema#string>
<http://rogerstringer.com/2012/04/15/using-the-x-requested-with-header-to-include-content-on-demand/>