function add_comment(id){
	  var name = $F('creator_name');
	  var errorMsg = "";
	  if (name=="") errorMsg+= '-'+alert_fill_name+'\n';
	  var email = $F('creator_email');
	  if (email=="") errorMsg+='-'+alert_fill_email+'\n';
	  var comment = $F('comment');
	  if (comment=="") errorMsg+='-'+alert_fill_comment+'\n';
	  if (errorMsg!="") return alert(errorMsg);
    var cid = $F('contentID');
    var post_date = $F('post_date');

    params = "cid="+cid+"&post_date="+post_date+"&creator_name="+name+"&creator_email="+email+"&comment="+comment+"&action=do_add_comment";
    doRequest(id,"modules/contents/show_comments.php",params);
}