I installed this module in zencart 1.3.8a and it works fine, however I have two questions:

1. Im not sure but to me it seems like this module does exactly the same as this code:

<!--BOF Facebook Like button-->
<div id="fb-root"></div>
<script>(function(d, s, id) {
var js, fjs = d.getElementsByTagName(s)[0];
if (d.getElementById(id)) return;
js = d.createElement(s); js.id = id;
js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>
<div class="fb-like" data-width="450" data-layout="box_count" data-show-faces="false" data-send="false"></div>
<!--EOF Facebook Like button-->

Please correct me if Im wrong, and explain to me why I should use the module instead of the simple code above.


2. On my website the Like counts shows "0" on all product info pages when Im on secure (https) pages, but it shows the correct counts when on non-secure (http) pages. Is this normal behaviour for this module?