/**
 * target="_blank" fix for xhtml 1.1
 * @return
 */
function fixRelExternal() { 
	if (!document.getElementsByTagName) return;
	
	var anchors = document.getElementsByTagName("a");
	var length = anchors.length;
	
	for (var i=0; i<length; i++) {
		if (anchors[i].getAttribute("rel") == "external") { 
			anchors[i].target = "_blank";
		}
	}
}

// Register
onLoadHandler(fixRelExternal);