what is the best js framework for ajax ?
first iam a beginner in ajax and js,
i found a lot of frameworks but i didn't know which is the best.
And i heared that some of thease frameworks are not updated any more.
I read a book called professional ajax with php and the book author was using a class library called zXml you can find it here but i found that the XMLDOM does not support opera browser it supports only IE and FireFox .
And I heared a lot about prototype class library but i didn't found tutorials using it you can found it here
so iam unable to deciding which is the best updated cross browsers js framework for ajax.

Anoher thing why we couldn't find here in the best developers community site
[sitepoint] an AJAX forum.
thanks