Add AJAX/JQuery functionality to an existing login modal for OSCommerce (Bootstrap Version)

I would like your help in adding AJAX/JQuery login functionality to an existing login modal for OSCommerce (Bootstrap Version). The itemized goals are below... 1. I would like you to keep the login modal largely intact and just add the necessary AJAX/JQuery code (along with the necessary supporting AJAX/JQuery files) so that the login modal can perform the login WITHOUT a page reload. 2. Ideally, you will add an option (true/false) for AJAX/JQuery login to the admin>modules>content>login modal section so that AJAX/JQuery login can be turned on/off. 3. Ideally, the nav bar should be updated too to reflect the login. I am proficient with PHP but not familiar enough with AJAX/JQuery to accomplish this mod myself. I will review your code and install the final code in my store myself. I would like you to set up your own fresh install of OSCommerce (Edge Bootstrap Version) for development. Please indicate if you have developed addons for OSCommerce in the past and which ones at addons.oscommerce.com. Extreme preference will be given to freelancers that understand how OSCommerce works (especially the Bootstrap Version) and can accomplish this task independently. OSCommerce (Edge Bootstrap Version) is found here... [login to view URL] The login modal I would like you to modify is found here... [login to view URL] By the way, the login modal code will need the paths to be hard-coded for the Edge Bootstrap Version. Other than that it's a drop in install.