Ajax and the Yahoo! Connection Manager Aptos CA

provided by: 
Originally published at Internet.com

The introduction of Ajax techniques to the web has spurred a series of JavaScript libraries designed to aid in cross-browser Ajax coding. A search for Ajax libraries on your favorite search engine will reveal a plethora of libraries claiming to be the best for such tasks. Recently, Yahoo! released some of its JavaScript utilities to the public; among them is the Connection Manager.

With Ajax making heavy use of XMLHttp, many developers are looking for ways to equalize the differences between browser implementations. The Yahoo! Connection Manager does this by handling all of the processing behind the scenes, exposing a simple API that frees developers from cross-browser concerns.

Before beginning, make sure you read the Yahoo! license agreement for JavaScript components at http://developer.yahoo.net/yui/license.txt. It's a standard BSD-style license, but you should be sure to read it over anyway. You can download the Connect Managed code from http://developer.yahoo.net/yui/connection/index.html#download. The code download includes the source code as well as documentation, but no examples.

Setup

There are two JavaScript files necessary to use the Connection Manager: YAHOO.js, which sets up the YAHOO namespace (this file is used by all the Yahoo! JavaScript components), and connection.js, which contains the XMLHttp code. The files must be included in this order as well: