MyBB Community Forums

I've added the following code from addthis.com in the header of my site in top right of head section(header screenshot attached). I want feedback from experts if it is ok to do it this way and will not cause any layout/browser issues:

<!-- AddThis Button BEGIN -->
<div class="addthis_toolbox addthis_default_style ">
<a class="addthis_button_facebook_like" fb:like:layout="button_count"></a>
<a class="addthis_button_tweet"></a>
<a class="addthis_button_pinterest_pinit"></a>
<a class="addthis_counter addthis_pill_style"></a>
</div>
<script type="text/javascript">var addthis_config = {"data_track_addressbar":true};</script>
<script type="text/javascript" src="http://s7.addthis.com/js/250/addthis_widget.js#pubid=ra-4ed5fa1d3aa24279"></script>
<!-- AddThis Button END -->

[attachment=26705]

Looks fine if you ask me.
Shouldn't cause any browser specific problems.