// Compliance for external links in a new window
//   XHTML 'target' attribute deprecated
//   WAI AA requires 'title' attribute to inform user
// Usage: set <a> tag dummy class to 'ext_link_new_win'
function external_links() { 
 if (!document.getElementsByTagName) return; 
 var alinks = document.getElementsByTagName("a"); 
 for (var i=0; i<alinks.length; i++) { 
   var alink = alinks[i]; 
   if (alink.getAttribute("href") && alink.className == "ext_link_new_win") {
     alink.target = "_blank";
	 alink.title = "Opens in new window";
	 for(var j=0; j<alink.childNodes.length; j++) { //look for images
	 	if(alink.childNodes.item(j).nodeName == 'IMG') alink.childNodes.item(j).title = alink.title; //set title
	 }
   }
 } 
}