So you’ve loaded that new AJAX fragment using AJAX commands but you want to change the page title too?
The JavaScript
Create a new JavaScript plugin called jquery.changePageTitle.js and add it to the same pages your AJAX will be running in. Inside the JavaScript add…
The PHP
Alongside your other AJAX Commands in your Drupal module AJAX callback add the code below replacing ‘My great page title’ with any string or PHP string variable you want.
Bonus
A good suggestion to improve consistency is to format the title including the site name in the same way Drupal does it by default.