var ak_js=document.getElementById("ak_js");
if(! ak_js){
ak_js=document.createElement('input');
ak_js.setAttribute('id', 'ak_js');
ak_js.setAttribute('name', 'ak_js');
ak_js.setAttribute('type', 'hidden');
}else{
ak_js.parentNode.removeChild(ak_js);
}
ak_js.setAttribute('value',(new Date()).getTime());
var commentForm=document.getElementById('commentform');
if(commentForm){
commentForm.appendChild(ak_js);
}else{
var replyRowContainer=document.getElementById('replyrow');
if(replyRowContainer){
var children=replyRowContainer.getElementsByTagName('td');
if(children.length > 0){
children[0].appendChild(ak_js);
}}
};