How to change wordpress comment count with facebook comment count.

Hi, I’d like to replace my theme’s wordpress comment count on my homepage post boxes with facebook comment counts.

imperialherald.com is the website.

I think this is the code for the commend counts in functions.php

function gridz_comments_link($comments_label = true) {
if(comments_open() && !post_password_required()) {
if($comments_label)
comments_popup_link(__(‘0 Comments’, ‘gridz’), __(‘1 comment’, ‘gridz’), __(‘% comments’, ‘gridz’), ‘entry-comments’);
else
comments_popup_link(__(‘0’, ‘gridz’), __(‘1’, ‘gridz’), __(‘%’, ‘gridz’), ‘entry-comments’);
}
}

thank you