Drupal 6 Released - AHAH Forms
Posted: Wed 02/13/2008 by ramiroDrupal 6 was released today. One of the most exciting new features to me — I only recently learned about — is that the AHAH (Asychronous HTML and HTTP) framework made it into the Drupal core. This means you can create asychronous HTTP request, commonly referred to as AJAX, without writing a single line of JavaScript code.
The new Forms API comes with an #ahah attribute that lets you specify the trigger event, e.g. a mouse click, the callback URL that will be requested after the event occurred and the ID value of the HTML element where the server response will be displayed. Pretty awesome stuff.