title: popup opens on the same page instead of using new window
body: <p>I'm trying out a simple popup example </p>
  
  <pre><code>&lt;html&gt;
  &lt;script type="text/javascript"&gt; 
  $('.example1demo').popupWindow({ 
  height:500, 
  width:800, 
  top:50, 
  left:50 
  }); 
  &lt;/script&gt;
  &lt;p&gt;&lt;a href="http://www.yahoo.com" title="yahoo.com" class="example1demo"&gt;open popup&lt;/a&gt;&lt;/p&gt; 
  &lt;/html&gt;
  </code></pre>
  
  <p>Checked this with Firefox and chrome - instead of opening the pop-up on new window .It uses same window. How to resolve this issue and open pop-up on new window?</p>