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;

/*
(function() {
    function popups_init() {
        var el;
        var links = document.getElementsByTagName("a");
        for (var i = 0; null != (el = links[i]); ++i) {
            if (/\bexternal\b/.test(el.rel)) {
                el.onclick = function() {
                    var w = window.open(this.href);
                    if (!w) return true;
                    w.focus();
                    return w.closed;
                    };
            };
        };
    };
  
    var oldOnload = window.onload;
    if (typeof oldOnload == 'function') {
        window.onload = function() {
          oldOnload();
          popups_init();
        };
    } else {
        window.onload = popups_init;
    };
})();
*/

/*
window.onload = function() {
    var links = document.getElementsByTagName('a');
    for (var i=0; i < links.length; i++) {
        if (links[i].className == 'newWindow') {
            links[i].onclick = function() {
                window.open(this.href);       // obsolete code
                return false;
            };
        }
    }
};
*/