// ---------------------------------------------------------------------------------------------------------------------
// [rel="external"] also becomes [target="_blank"] (opens external links in new windows)
// ---------------------------------------------------------------------------------------------------------------------
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")) 
        {
            var rels = anchor.getAttribute("rel").split(/\s+/);
            for (var j = 0; j < rels.length; j++)
		    {
			    if (rels[j].toLowerCase() == "external")
			    {
			    	anchor.setAttribute("target", "_blank");
			    }
			    break;
		    } 
        }
    } 
}

if (window.attachEvent)
{
	window.attachEvent("onload", externalLinks);
}
else
{
	window.addEventListener("load", externalLinks, true);
}