Ajax contact Joomla Module
Ajax contact Joomla Module is a Joomla module that uses core ajax component com_ajax to utilize the ajax technology.
It also has validation feature. A user fills in form and submit, upon submitting the form it does not refresh full page, rather using ajax technology only that form is submitted and request sent asynchronous to the server, Server then process request and responds. Respond is then shown to user in form of success or failure message at the top of form.
It is very suitable if you don't want full page contact and want contact form to be in home, may be to the right left sides or in bottom. Or you have one page website and want to place it on that page.