Share buttons in blog posts opening new tabs instead of pop-up

Thanks!

I find the new tab awkward. Any advice on how to turn those links into pop up browser windows?

Thanks again!

Thanks for the solution! Pop-up works great–much better.
For whatever reason (I couldn’t figure out exactly why), though, your code made all of the links on the page pop up, not just the share links. I ended up using this code and now it’s only getting the share links:

function social_popup(){
  ?>
  <script>
(function($){
jQuery(window).load(function(){
$(document).ready(function(){
  $(".av-share-link").find("a").attr("onclick","window.open(this.href, 'windowName', 'width=670, height=2000, left=24, top=24, scrollbars, resizable'); return false;");
});
}); 
})(jQuery);
</script>
<?php
}
add_action('wp_footer', 'social_popup');