/* a way to open target _blank and stay xhtml strict complient

 Include like so:
	<script type="text/javascript" src="/external.js"></script>

Before:
<a href="document.html" target="_blank">external link</a>
After:
<a href="document.html" rel="external">external link</a>
*/

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;