Dear Sitepoint-users

I'm currently having an issue getting a Facebook-button on my website. I have the code and javascript from the developer-page from Facebook.
This is how it looks like:
<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/nl_BE/all.js#xfbml=1";
fjs.parentNode.insertBefore(js, fjs);
}(document, 'script', 'facebook-jssdk'));</script>

<div class="fb-like-box" data-href="http://www.facebook.com/Binnenhuisinrichting.Mira.Zele" data-width="100" data-height="20" data-colorscheme="dark" data-show-faces="false" data-header="true" data-stream="false" data-show-border="true"></div>
However, when I insert it into my site, I get nothing. I can see something "processing" because the cursor is spinning, but nothing seems to happen and nothing appears. The javascript seems to start something, but doesn't succeed.
I tried putting in some text in the div:
<div class="fb-like-box" data-href="http://www.facebook.com/Binnenhuisinrichting.Mira.Zele" data-width="100" data-height="20" data-colorscheme="dark" data-show-faces="false" data-header="true" data-stream="false" data-show-border="true">TEST</div>, which does appear: facebook test button.jpg. However no facebookbutton seems to appear.

I want it floating into the white area next to the logo, above the horizontal menu where the word "test" is from the image.
Can anybody help me out please what is going wrong? In attachment also the code from my index.html.Facebook button code index.txt

Thanks a lot in advance

Kind regards
Maxx-iT