window.addEvent('domready', function(){
	$$('a[rel^=external]', function(a) {
		a.target = '_blank';
	});
	
	// Lightbox for all images marked with box
	var overlay = new Popup.Overlay();
	var lightbox = new Popup.Lightbox({ holder: overlay });
	$$('a[rel^=lightbox]').each(function(a){
		lightbox.add(a.href, a.title);
		a.addEvent('click', function(e){ e.preventDefault(); lightbox.show(this.href, this.title); });
	});
});