function extLinks(tekst){
  links = document.getElementsByTagName("a");
  for(i=0; i < links.length; i++){
   if(links[i].rel == "extern" || links[i].rel == "nofollow"){
     links[i].setAttribute("target","_blank");
   }
   document.getElementsByTagName("a")[i].onmouseover = function(){
      window.status="";
      return true;
   }
  }
}