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;