<script type="text/javascript">   
e=document.getElementsByTagName("TD");   
for(k=15; k<e.length;k++) {   
if(e[k].className=='posttdMessage') {   
s=e[k].innerHTML;   
while (s.indexOf('[Table Grey]') != -1){   
s=s.replace('[Table Grey]','<table width="100%" border="0" cellspacing="0" cellpadding="5" style="background-color:#BEBEBE; border-top:1px dotted #898989; border-right:1px dotted #898989; border-bottom:1px dotted #898989; border-left:1px dotted #898989;"><tr><td style="width:60px; height:25px; background-image: url(http://up-rise.ru/All-Scripts/Admin_Grey.png); background-repeat:no-repeat; background-position:5px 5px;"> </td><td><font style="font-size: 11px; font-family: Verdana; color: #898989;">'); s=s.replace('[/Table Grey]','</font></td></tr></table>');   
e[k].innerHTML=s;   
}   
} }   
</script>

<input type="button" value="Таблица Серая" onclick="simpletag('TableGrey','','','message',''); return false;" class="codeButtons" title="Таблица Серая" name="TableGrey">