<?if($USER_LOGGED_IN$)?>   
<style>   
.ScrLeft {   
background-color:white;   
position: fixed;   
left: 20px;   
top: 20px;   
width: 165px;   
border:1px solid orange;   
top: expression(   
parseInt(document.body.scrollTop, 10) + "px"   
);   
}   
</style>   
<div class="ScrLeft">   

<a href="$PM_URL$" class=w>Сообщения</a> <?if($IS_NEW_PM$)?> (новых <b>$UNREAD_PM$</b>) <bgsound src="Сылка на звук" loop="1"><?endif?>   
</div>   
<?endif?>