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";
      if (anchor.title=="") {
        anchor.title = "Click to view larger version.";
      }
//      anchor.innerHTML = anchor.innerHTML + " &#xBA;";
    }
    if (anchor.getAttribute("href") &&
        anchor.getAttribute("rel") == "protected"){
      anchor.target = "_blank";
      anchor.innerHTML = anchor.innerHTML + " *";
    }
 }
}