Align Mark as read to center + back to top

[acoolie530]

Name: Align Mark as read to center and back to top button
Compatibility: Firefox/IE
Preview: g101
Placement: Main Footer
Edit: none
Notes: I know this is similiar to Peters code but umm... this is text and aligned in center. And mine pwns his in all ways possible

<script type="text/javascript">
<!--
/* Align mark as read by acoolie
Do not redistribute or editwithout my permission */
var td = document.getElementsByTagName("td")
for(var g=0;g<td.length;g++){
if(td[g].height=="18" && td[g].className=="catbg" && td[g].align=="right"){
td[g].align="center";
td[g].innerHTML = "<a href='/index.cgi?action=markallboardsread'>Mark as Read</a> - <a href='#'>Back To Top</a>"
}
}
//-->
</script>

I got bored. two codes in one day *yawns*