function xt(that) {
  try {
    xmlHttp = new XMLHttpRequest();
    xmlHttp.open( "GET", 'http://xt.spaetzle.de/?'+that.href+'|'+location.href, true );
    xmlHttp.send( null );
    setTimeout('document.location = "' + that.href + '"', 100)
  }catch(err){}
}