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")) {      if (anchor.getAttribute("rel")) {        var rels = anchor.getAttribute("rel").split(" ");        for (var j=0; j<rels.length; j++) {          if (rels[j] == "external") anchor.target = "_blank";        }      }    }  }}Event.observe(window, 'load', externalLinks, false);// JavaScript Document