The Automatic Cart Recalculate add-on for CS-Cart and Multi-Vendor enables automatic recalculation of the cart's total cost with AJAX without clicking the Recalculate button. Now you can simply enter the number of products or change options, and all the prices will be recalculated automatically.
The Ajax Mega Menu add-on allows you to optimize the work of store site. Now your site can work faster, as menu items are loaded not at once, but only when you put a cursor on them. It greatly saves the time needed to load a page, especially if you have a big menu with lots of items.