// JavaScript Document
//This code is provided by Kevin Yank in an article on site point
//http://www.sitepoint.com/article/standards-compliant-world
//provides an alternative to target="_blank" attribute and remain valid under XHTML Strict.
//Commented by Charles Russell to facilitate understanding.
function externalLinks() 
{ 
	//Check browser capable
	 if (!document.getElementsByTagName) return;
	 //Get anchor tags
	 var anchors = document.getElementsByTagName("a");
	 //Find all anchors with rel set to external and set target="_blank" here allowing XHTML code to remain compliant
	 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;