function htmlEsc(s){
  s = s.replace(/&/g,"&");
  s = s.replace(/</g,"&lt;");
  s = s.replace(/>/g,"&gt;");
  return s;
}
function getcomment(id){
  var b,m,s,re;
  s = '<!-- id="' + id + '" *[\\n\\r]([\\n\\r\\s\\S]*?)[\\n\\r]-->';
  re = new RegExp(s);
  b = (document.getElementsByTagName("body"))[0].innerHTML;
  m = b.match(re);
  if(m == null)
    alert("no match");
  else
    return m[1];
}
function com2bq(id1,id2){
  document.getElementById(id2).innerHTML = htmlEsc(getcomment(id1));
}