Звук для p_newmessage от SJen (одно сообщение - один звук)

<?php
    session_start();
    $user_id = isset($_SESSION['user']['id']) ? $_SESSION['user']['id'] : 0; 
    if ($user_id){
    	define("VALID_CMS", 1);
      define('PATH', $_SERVER['DOCUMENT_ROOT']);
    	include(PATH.'/includes/config.inc.php');
      mysql_connect($_CFG['db_host'],$_CFG['db_user'],$_CFG['db_pass']);
  		mysql_select_db($_CFG['db_base']);      
      $sql = "select count(distinct id) from {$_CFG['db_prefix']}_user_msg where to_id = {$user_id} and is_new = 1 and to_del = 0  and from_del = 0";
      $newmsg = mysql_result(mysql_query($sql),0);
$sql="select newmes from {$_CFG['db_prefix']}_users where id={$user_id}";
$colnew=mysql_result(mysql_query($sql),0);
if ($newmsg!=0 ){
$idsound=mysql_result(mysql_query("select id from {$_CFG['db_prefix']}_user_msg where to_id = {$user_id} and is_new = 1 and to_del = 0  and from_del = 0"),0);
$issound=mysql_result(mysql_query("select is_sound from {$_CFG['db_prefix']}_user_msg where id={$idsound}"),0);}
 
      if ($newmsg!=0 ){
if ($issound!=1 || $newmsg>$colnew){
   echo '<audio src="/mes.ogg" autoplay autobuffer></audio><a class="has_new" href="/users/'.$user_id.'/messages.html">Сообщения ('.$newmsg.')</a>';
$sql = "UPDATE cms_user_msg SET is_sound = 1 WHERE id= {$idsound}";
mysql_query($sql);
$sql = "UPDATE cms_users SET newmes = {$newmsg} WHERE id= {$user_id}";
mysql_query($sql);
}else
{
echo '<a class="has_new" href="/users/'.$user_id.'/messages.html">Сообщения ('.$newmsg.')</a>';
}
if ($newmsg<$colnew){
$sql = "UPDATE cms_users SET newmes = {$newmsg} WHERE id= {$user_id}";
mysql_query($sql);
}
        return ;
      }else{
 echo '<a href="/users/'.$user_id.'/messages.html">Мои Сообщения</a>';
}
    }
?>