<script type="text/javascript" language="javascript">   
e=document.getElementsByTagName("TD");   
for(k=15; k<e.length;k++) {   
if(e[k].className=='posttdMessage') {   
s=e[k].innerHTML;   
while (s.indexOf('   
P.S.') != -1){   
s=s.replace('   
P.S.','<fieldset><legend><font style="font-size: 10px; font-family: Verdana; color: red;"> P.S.</font></legend><font style="font-size: 11px; font-family: Verdana; color: red;">'); s=s.replace('   
','</font></fieldset>');   
e[k].innerHTML=s;   
}   
} }   
</script>

<input accesskey="y" value="p.s." onclick="simpletag('p.s.','','','message',''); return false;" class="codeButtons" title="p.s." name="p.s." type="button">