// Open External Links as Blank Targets via Unobtrusive JavaScript
// http://perishablepress.com/press/2007/11/20/open-external-links-as-blank-targets-via-unobtrusive-javascript/

function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName("a");
	for (var i=0; i<anchors.length; i++) {
		var anchor = anchors[i];
		var rel = anchor.getAttribute("rel");
		if (rel) {
			if (anchor.getAttribute("href") && (rel.indexOf('external') > -1) && (rel.indexOf('lightbox') == -1)) {
				anchor.target = "_blank";
			}
		}
	}
}
window.onload = function() {
	externalLinks();
}