CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications
Read more and download from the below link.
http://codeigniter.com/
CodeIgniter is a powerful PHP framework with a very small footprint, built for PHP coders who need a simple and elegant toolkit to create full-featured web applications
Read more and download from the below link.
http://codeigniter.com/
Here’s a lighbox application based on the extremely popular YUI (Yahoo UI) library.


Check out the video demo.
Read more and download the source from the below link.
http://nicora.net/projects/photoViewer/index.cfm/home
Shadowbox is a cross-browser, cross-platform, cleanly-coded and fully-documented media viewer application written entirely in JavaScript. Using Shadowbox, website authors can display pictures and movies in all major browsers without navigating away from the linking page.

Check out the video demo
Read more and download the source from the below link.
http://mjijackson.com/shadowbox/
This is yet another jQuery based lightbox implementation. Clicking on the image thumbnail loads the image in a modal dialog as shown in the screen shots below.


Check out the video demo.
Read more and download the source from the below link.
http://leandrovieira.com/projects/jquery/lightbox/
jTagging is a lightweight jQuery based solution which enables users to enter tags more easily.

Check out the video demo.
Read more and download the source from the below link.
http://www.alcoholwang.cn/jquery/jTagging.htm
I came across an article that teaches how to implement chained SELECT using PHP and AJAX.
Check out the video demo.
Read more and download the source from the below link.
http://www.dhtmlgoodies.com/index.html?whichScript=ajax_chained_select
Here is an extremely simply PHP based AJAX chat application. Requies only two files.
(index.html, w.php)
index.html reads the content & sends your message to w.php
w.php writes the content and prunes it to $maxlines lines
Check out the video demo.
Read more and download the source from the below link.
http://www.linuxuser.at/index.php?title=Most_Simple_Ajax_Chat_Ever
Datejs is an open-source JavaScript Date Library.
Comprehensive, yet simple, stealthy and fast. Datejs has passed all trials and is ready to strike

Check out the video demo
Read more and download the source at
http://www.datejs.com/
Quick tutorial to learn using jQuery to build your AJAX app.