function externalLinks() {
	if (!document.getElementsByTagName) return;
	var anchors = document.getElementsByTagName('a');
	for (var i = 0, len = anchors.length; i < len; i++) {
		var anchor = anchors[i];
		if ( anchor.getAttribute('href') && anchor.getAttribute('rel') && (anchor.getAttribute('rel').match( /lightbox/gi ) || anchor.getAttribute('rel').match( /external/gi )) ) anchor.target = '_blank';
	}
	anchors = i = anchor = null;
}