//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;