How to access tools for Ajax development

When you create Ajax applications you give your users almost like a desktop experience. The data on web pages refreshes without you having to reload the page and different HTML elements metamorphose into something else without having to load a new page. Most Ajax development happens through the different JavaScript libraries available on the Internet like scriptaculous, jQuery, prototype and mootools. Through these tools you can not only manipulate different page elements you can also invoke server side scripting residing in other files from your current file.

This link lists more than 23 tools that can assist you in your Ajax development.