// JavaScript Document

  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") == "blank")
      anchor.target = "_blank";
    }
  }
  window.onload = externalLinks;