// New window XHTML 1.0 strict validation - replaces <a href="" target="_blank"> with <a rel="external" href="">
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;
//end -->