function showNewssection(id) {
  var dds = document.getElementsByTagName("dd");
  for (var i=0; i<dds.length; i++ ) {
    if (dds[i].className.indexOf("newssection") == -1) continue;
    if (dds[i].getAttribute("id") != id) {
      dds[i].style.display = "none";
    } else {
      dds[i].style.display = "block";
    }
  }
}

function prepareNewsnav() {
  if (!document.getElementsByTagName) return false;
  if (!document.getElementById) return false;
  if (!document.getElementById("intnav")) return false;
  var nav = document.getElementById("intnav");
  var links = nav.getElementsByTagName("a");
  for (var i=0; i<links.length; i++ ) {
    var sectionId = links[i].getAttribute("href").split("#")[1];
    if (!document.getElementById(sectionId)) continue;
    document.getElementById(sectionId).style.display = "none";
    links[i].destination = sectionId;
    links[i].onclick = function() {
      showNewssection(this.destination);
      return false;
    }
  }
}

function addLoadEvent(func) {
  var oldonload = window.onload;
  if (typeof window.onload != 'function') {
    window.onload = func;
  } else {
    window.onload = function() {
      oldonload();
      func();
    }
  }
}

addLoadEvent(prepareNewsnav);