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";
      }
    }
    //window.onload = externalLinks;
    addOnload(externalLinks);