Avoid popping blocking when calling window.open from .change()
<p>I have a select menu, for which I have the following code:</p>

<pre><code>$('#sister-site-menu').change(function(){
  if ($(this).val()) {
    window.open($(this).val(), '_blank');
  }
});
</code></pre>

<p>This however causes the popup blocker to be invoked in Chrome. I'm sure I've seen sites do this before, any ideas?</p>

<p>Thanks!</p>
