Multi-window on one click
HTML
<a href="http://ljd.dk" data-href="http://vertic.com">Opens two windows (hopefully)</a>
JavaScript
$('a').click(function(e){
e.preventDefault();
var $link = $(this),
href = $link.attr('href'),
data = $link.data('href'),
firstWindow, secondWindow;
firstWindow = window.open(href);
secondWindow = window.open(data);
});