Hello,
I gone through your current site and have reviewed all provided points that I need to fixed in your Prestashop site and wanted to confirm you that I will fixed all the issues and also add script that you have shared.
As I have extensive expertise in Prestashop Store Development, PSD to Prestashop Conversion and Theme Development, Extension Development, 3rd Party Gateway/App/Plugin/Script Integration etc.. And will provide you complete help according to you.
Looking forward to hear from you soon.
Regards,
Kaushal