// Open external links, to make the code XHTML strict valid
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;