Newsletter Subscription Box External Site

Hi all,

I was wondering if it is possible to allow subscription to newsletters from an external site. Currently on my site users are able to subscribe to newsletters and thier information appears within the CS-cart admin area.

I am trying to intergrate (as far as possible) a WordPress blog and like this within the footer. Both the cs-cart and wordpress are on the same server with different SQL databases.

My initial thought was I may have to code it such that within the Wordpress files it opens a new connection to the CS-cart database and adds in the e-mail subscription. Think there maybe a better way.

Thanks for your help in advance.