function externalLinks() {
	var anchors = document.getElementsByTagName("a");
	for (var i = 0; i < anchors.length; i++) {
		var anchor = anchors[i];
		if (anchor.getAttribute("href") &&
			anchor.getAttribute("rel") == "external") {
			anchor.target = "_blank";
		}
		else if (anchor.getAttribute("href") &&
			anchor.getAttribute("rel") == "top") {
			anchor.target = "_top";
		}
	}
}