Open external link in new window

[Thomas]

I'm not sure if I understand what should I do.
I added

Code:

//external link opened in a new window
$('.kmb-1-external').off('vclick').on('vclick', function() {
 window.open('http://172.20.0.149');
})

into javascript

I added
kmb-1-external
into link's class

But the link is still opened in the same window.

The source of the control is

Code:

<div class="item item-control kmb-1-external" style="left: 907px; top: 196px; z-index: 60;">
  <div class="icon"><img style="width: 46px; height: 46px;" src="/scada/resources/icons/ecl_xL_O_odskok.svg?1489411752">
  </div>
</div>