I just tried out your Chapter 2 example XMLHttp Example 1, and I have the following problem.

Upon loading the XMLHttpExample1.htm page, my JavaScript console gives this error:

Error: missing catch or finally after try
Source File: http://localhost/Test2/zxml.js
Line: 1, Column: 183
Source Code:
);}else if($a.useActiveX){if(!$a.XMLHTTP_VER){for(var i=0;i<$a.ARR...

I am using Mozilla Firefox 1.0.4. I also tried this in IE 6.0, where it did not work, but there was no error message.

It looks like something happened to the code, I've alerted the publisher and new code should be uploaded soon. In the meantime you can download the updated code at http://www.nczonline.net/downloads/ .

Regards,
Nicholas

Nicholas C. Zakas
Author, Professional JavaScript for Web Developers (ISBN 0764579088)
http://www.nczonline.net/

That new code fixed it, thanks.