Ставим в HTML верх
<style>
.memdetails
{
background: #fafcfe;
border: 1px solid #cdd6e2;
border-bottom-width: 2px;
border-right-width: 2px;
padding: 4px 3px 4px 3px;
margin: 3px 1px 3px 1px;
}
</style>
Это ставим в HTML низ
<script type="text/javascript">
var arr=document.getElementsByTagName("li")
i=0
str=document.URL
while(arr[i] ){
if((arr[i].className=="pa-author online") || (arr[i].className=="pa-author") || (arr[i].className=="pa-title") || (arr[i].className=="pa-avatar item2") || (arr[i].className=="pa-reg") || (arr[i].className=="pa-posts") || (arr[i].className=="pa-respect") || (arr[i].className=="pa-positive") || (arr[i].className=="pa-ip") || (arr[i].className=="pa-online")){
name=arr[i].innerHTML
name=name.substring(0)
arr[i].innerHTML="<div class=memdetails>"+name+"</div>"
}
i++
}
</script>