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";
        }
    }
}

function noSpam() {
    var a = document.getElementsByTagName("a");
    for (var i = a.length-1; i >= 0; i--) {
      if (a[i].className.search(/\bemail\b/) != -1) {
        var email = a[i].firstChild.data + "@" + a[i].lastChild.data;
        a[i].innerHTML = email;
        a[i].href = "mailto:" + email;
      }
    }
}