// http://www.sitepoint.com/article/standards-compliant-world/

// slightly modified

function externalLinks() {
 if (!document.getElementsByTagName) return;
 var anchors = document.getElementsByTagName("a");
 for (var i=0; i<anchors.length; i++) {
   var anchor = anchors[i];
 //      anchor.getAttribute("rel") == "external"
   if (anchor.getAttribute("href") && anchor.getAttribute("rel") == "external"
//	&& anchor.getAttribute("href").match(/^(ftp|http|https)\:\/\//)
      )
     anchor.target = "_blank";
 }
}
/*if (window.attachEvent) {
window.attachEvent('onload', externalLinks);
}*/
YAHOO.util.Event.addListener(window, 'load', externalLinks);