I found this questions asking how to do this in many different forums, so I will describe here how to implement a solution using PHP and AJAX.
The logical flow for the problem should be:
Write an event handler for the first drop down box to get …
The viewer will learn the basics of jQuery including how to code hide show and toggles.
Reference your jQuery libraries:
Include your new external js/jQuery file:
Write your first lines of code to setup your site for jQuery…