Код:

<!---дайсометалка---->
<script type="text/javascript">
 
if(form=document.getElementById("form-buttons"))
form.getElementsByTagName("tr")[0].insertCell(0).innerHTML="<img src='https://forumstatic.ru/files/001a/14/51/30050.jpg' title='Бросок' id='button-dice' onclick=\"dice();\"/>"
</script>
 
<script type="text/javascript"> 
 
function unhtml(s)
{ return s.replace(/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;"); }
 
function numword(s,one,two,many)
{ return(((s%100>=10 && s%100<=20) || s%10>=5) ? many : 
          (s%10==1 ? one : two)); }
 
function dice()
{
        var FoundErrors = '';
        var diceRes=""
        var CountCube = 1;
        var SideCube = 20;
        var BonusCube = parseInt(prompt("Бонусы", "+0"));
        var ReasonCube = unhtml(prompt("Действие", "").
           replace(/\s+/g," ").replace("]"," "));
        
        for(i=0; i<CountCube;i++)
        {
          var dice = (Math.round(Math.random()*SideCube));
          if(dice==0) dice=1;
          diceRes += dice*1936+"-";
        }
        smile('[dice='+diceRes+CountCube+':'+SideCube+
              ':'+BonusCube+':'+ReasonCube+']');
}
 
function addDice(post,from,internal)
{
  var str=post.innerHTML, num=-1, date=-1, a, fCanRandomise=0, u=""; 
  while(post=post.parentNode) 
    if(post.className=="container")
      if(post=post.parentNode)
      {
        if(a=post.innerHTML.match(
          /class[^<>]+permalink[^<>]+#p(\d+)[^<>]*>[^<>]*(\d+):(\d+):(\d+)[^<>]*<\/a>/i))
            { num=a[1]; date=a[4]; 
              fCanRandomise=1; break; }
      }
 
  var ran=parseInt(num+date);
  return str.replace(
     /\[dice=((?:\d+[-—])*)(?:(\d)(\d+)|(\d+)(:)(\d+)(?::([-—]?\d+):([^\]]*))?)]/g,
  function(a,dice,diceC,diceS,adieC,fNewScheme,adieS,adieB,adieR) 
  {
    dice  = dice.replace(/[-—]/g, '-');
    adieB = adieB.replace(/[-—]/g, '-');
    diceC=parseInt(fNewScheme ? adieC : diceC);
    diceS=parseInt(fNewScheme ? adieS : diceS);
    adieB=parseInt(adieB ? adieB : 0);
    if(adieB>0) adieB='+'+adieB;
    if(!fCanRandomise && fNewScheme)
      return '<div class="quote-box"><blockquote><p><b>ОШИБКА</b></p></blockquote></div> ';
 
     var i,diceR=0,
        s='<div class="quote-box"><blockquote '+  
          'style="text-align:left"><p>'+
           '<b>1d20, '
           +(adieB ? (adieB>0 ? ' Бонус ' : ' и пенальти ')+adieB : '')+
           (adieR ? ', </b><br>Действие:<i>'+adieR+'</i><b>' : '')
           +'<br /><br />Результат '+
           (fNewScheme ? '' : '(старая схема)')+'</b>: (';
 
    dice=dice.split("-"); 
    for(i=0; i<dice.length-1; ++i)
    {
       var d=parseInt(dice[i]/1936); 
       date=((date>>1)+((date&1)<<21))&0x3fffff;
       num=((num>>1)+((num&1)<<22))&0x7fffff;
       if(fNewScheme) d=(ran=(((ran>>1)+(((ran&1) ? 0 : 1)<<23)+d+date)^num)&0xffffff)%diceS +1;
       diceR+=d;
       s+= (i?' + ':'') + d;
    } 
 
    if(adieB) diceR+=parseInt(adieB);
    return(s+ (adieB ? ')'+adieB : ')')+ 
           '=' + diceR + '</p></blockquote></div>');
  });
}
if(document.URL.indexOf("viewtopic.php")!=-1)
{
  elm=document.getElementById("pun-main").getElementsByTagName("div");
  for(x=0; x<elm.length; ++x) 
    if(elm[x].className=="post-content")
      elm[x].innerHTML=addDice(elm[x]); 
}
</script>