AHAH: Asychronous HTML and HTTP
microformats.org
AHAH is a very simple technique for dynamically updating web pages using JavaScript (http://en.wikipedia.org/wiki/JavaScript). It involves using XMLHTTPRequest (http://en.wikipedia.org/wiki/XMLHTTP) to retrieve (X)HTML (http://en.wikipedia.org/wiki/HTML)
AHAH is a very simple technique for dynamically updating web pages using JavaScript (http://en.wikipedia.org/wiki/JavaScript). It involves using XMLHTTPRequest (http://en.wikipedia.org/wiki/XMLHTTP) to retrieve (X)HTML (http://en.wikipedia.org/wiki/HTML)