var old_idAnchor="";

  function showAnchor(idAnchor) {
    if (old_idAnchor != "") {
      document.getElementById(old_idAnchor).innerHTML="";
      old_idAnchor="";
      window.clearTimeout();
    }
    if (idAnchor != "") {
      old_idAnchor=idAnchor;
      document.getElementById(idAnchor).innerHTML="<img align='absmiddle' src='./img/imgShowAnchor.gif'>&nbsp;";
      window.setTimeout("showAnchor('')", 5000)
    }
  }