You can insert the following line of code into your Kontera tags in order to enable advertisements to appear in a new window:  var  dc_open_new_win = ‘yes’;

See tag example below, the bold text is the added code line:
 
<!-- Kontera ContentLink™ -->
<script type="text/javascript">
    var dc_UnitID = 14;
    var dc_PublisherID = ####;
    var dc_AdLinkColor = '#####';
    var dc_open_new_win = 'yes';
    var dc_adprod='ADL';
</script>
<script type="text/javascript" SRC="http://kona.kontera.com/javascript/lib/KonaLibInline.js"></script>
<!-- Kontera ContentLink™ -->

Keep in mind that this change may present an issue because of browser pop-up blockers, so please use this with caution and review your metrics to ensure that there are no adverse effects on your results after implementing this function.