<style type="text/css">
.fs-box div {
border-color: red !important;
}
</style>

<style type="text/css">
#button-spoiler {background-image:url(http://forumupload.ru/uploads/0000/12/13/488-1.gif); padding:0; line-height:0; background-position:center; background-repeat:no-repeat; height:26px; width:100%}
</style>
<script type="text/javascript">
function addSpoiler(str,from,internal){
var pos=0,pos2=0,newpos=0
if((pos=str.indexOf("[spoiler]",from))==-1) return str;
if((pos2=str.indexOf("[/spoiler]"),pos+9)==-1) return str;
newpos=str.indexOf("[spoiler]",pos+9)
if(newpos<pos2 && newpos!=-1) str=addSpoiler(str,pos+9,true)
if((pos2=str.indexOf("[/spoiler]",pos+9))==-1) return str;
str=str.substring(0,pos)+makeSpoiler(str.substring(pos+9,pos2))+str.substring(pos2+10,str.length)
if( str.indexOf("[spoiler]")!=-1 && internal==false) str=addSpoiler(str,0,false)
return str}

function makeSpoiler(txt){
txt="<div class=quote-box style='padding:1px'><cite style='width:100%'><u style='font-size: 10px; cursor: pointer;' onclick='hideSpoiler(this)'>Показать</u></cite><blockquote style='display:none'>"+txt+"</blockquote></div>"
return txt}

function hideSpoiler(sp){
spoiler=sp.parentNode.parentNode.getElementsByTagName("blockquote")[0]
if(sp.innerHTML == 'Скрыть') {
sp.innerHTML = 'Показать';
spoiler.style.display = 'none';
}
else {
spoiler.style.display = 'inline';
sp.innerHTML = 'Скрыть';
}}

if(document.URL.indexOf("viewtopic.php")!=-1){
elm=document.getElementById("pun-main").getElementsByTagName("div")
for(x in elm) if(elm[x].className=="post-content"){
var post=elm[x]
post.innerHTML=addSpoiler(post.innerHTML,0,false)}}
if(form=document.getElementById("form-buttons"))
form.getElementsByTagName("tr")[0].insertCell(19).innerHTML="<img  id=\"button-spoiler\" title=\"Spoiler\" onclick=\"bbcode('[spoiler]','[/spoiler]')\" src=\"/i/blank.gif\" />"
</script>