function ia_nospam() {
  var aa=document.links;
  var rxNoSpam=/^nospam:/;
  var rxAT=/\{AT\}/g;
  var rxSpaces=/\s/g;
  
  function repl(str) {
    return unescape(str).replace(rxSpaces,'').replace(rxAT,'@'); 
  }
  
  for(var j=aa.length; j-- >0;) {
    var a=aa[j];
    if(rxNoSpam.test(a.href)) {
      a.href=repl(a.href.replace(rxNoSpam,"mailto:"));
      a.innerHTML=repl(a.innerHTML);
      a.style.visibility="visible";
    }
  }
}