function externalLinks()
{
  if(!document.getElementsByTagName) return false;
  var links = document.getElementsByTagName("a");
  for(var i = links.length - 1; i > -1; i--)
  {
    if(links[i].getAttribute("href") && links[i].getAttribute("rel") == "external")
      links[i].target ="_blank";
  }
}

function mDebug(message)
{
  if(document.getElementById && document.getElementById("debug"))
  {
    var debugged = document.getElementById("debug");
    var para = document.createElement("p");
    var mess = document.createTextNode(message);
    para.appendChild(mess);
    debugged.appendChild(para);
  }
}
    

window.onload = function(){
  externalLinks();
  }