function externalLinks() {
	if (!document.getElementsByTagName) {
		return;
	}
	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";
			anchor.title += " [Opens in new window]";
		}
	}
}
//// tell search engines to bugger off
//function noFollow() {
//    if (!document.getElementsByTagName) { return; }
//    var anchors = document.getElementsByTagName("a");
//    for (var i=0; i<anchors.length; i++) {
//        var anchor = anchors[i];
//        if (anchor.getAttribute("href")) {
//            anchor.setAttribute("rel", "nofollow");
//        }
//    }
//}

window.onload = externalLinks;