open all links in new tab

gistfile1.js

$('a').each(function() {
	// get this site's URL
	var a = new RegExp('/' + window.location.host + '/');

	// check if the link is an actual web link
	if(this.href.match(/^http/)){
		// check if the link contains this site's URL
		if(!a.test(this.href)) {
			$(this).click(function(event) {
				event.preventDefault();
				event.stopPropagation();
				window.open(this.href, '_blank');
			});
		}
	}
});