Код:

 <script language="JavaScript">
    function showLDiv()
    {
    if(  document.getElementById("loginDiv").style.display == 'none' )
         document.getElementById("loginDiv").style.display = ''
    else document.getElementById("loginDiv").style.display = 'none'

    return false;
    }
    function check_form()
    {
    if(document.forms["form_login"].req_username.value=='' || document.forms["form_login"].req_username.value=='') {
    alert('Оба поля обязательны для заполнения');
    return false;
    }
    return true
    }
    url=document.URL
    if(url.indexOf("login.php")==-1  && document.getElementById('navlogin')){
    document.getElementById('navlogin').innerHTML  = "<a href=\"login.php\" onclick=\"return showLDiv()\"><span>Войти</span></a>"
    login = "<center><div id=loginDiv style=\"display: none; \">"

    login += "<form id=form_login name=login method=post action=\"login.php?action=in\" onsubmit=\"return check_form()\">"
    login += "<fieldset>"
    login += "<legend>Введите ваше имя и пароль ниже</legend>"
    login += "<input type=hidden name=form_sent value=1 />"
    login = login + "<input type=hidden name=redirect_url value="+document.URL+" />"
    login += "<br><table width=\"100%\" align=left>"
    login += "<tr><td align=left><b>Имя :</b></td><td align=left><input type=\"text\" id=\"fld1\" name=\"req_username\" size=\"30\" maxlength=\"25\" /></td></tr>"
    login += "<tr><td align=left><b>Пароль :</b></td><td align=left><input type=\"password\" id=\"fld2\" name=\"req_password\" size=\"30\" maxlength=\"16\" /></td></tr>"
    login += "</table>"
    login += "</fieldset>"
    login += "<p class=formsubmit><input type=submit class=button name=login value=\"Войти\" /><br /> <a href=\"register.php\">Еще не зарегистрированы?</a><br /> <a href=\"login.php?action=forget\">Забыли пароль?</a></p>"
    login += "</form>"
    login += "</div></center>"

    document.getElementById('pun-navlinks').innerHTML += login
    }
    </script>

    <style>
    #loginDiv{
        position:absolute;
        z-index: 2;
        background-color : Gray;
        border : solid;
        padding-bottom : 5px;
        padding-left : 5px;
        padding-right : 5px;
        padding-top : 5px;
        width: 300px;
    }
    </style>

Код:

<!-- окошко информации-->
<script>
function addMod(str,from,internal){
var pos=0,pos2=0,newpos=0
if((pos=str.indexOf("[mods]",from))==-1) return str;
if((pos2=str.indexOf("[/mods]"),pos+6)==-1) return str;
newpos=str.indexOf("[mods]",pos+6)
if(newpos<pos2 && newpos!=-1) str=addMod(str,pos+6,true)
if((pos2=str.indexOf("[/mods]",pos+6))==-1) return str;
str=str.substring(0,pos)+makeMod(str.substring(pos+6,pos2))+str.substring(pos2+7,str.length)
if( str.indexOf("[mod]")!=-1 && internal==false) str=addMod(str,0,false)
return str}

function makeMod(txt){
txt="<br><div style=\"margin: 0px; padding: 0px; background-color:#F1F1FD; border-left: 0px solid #6060FF; border-top: 0px dotted #000; border-right: 1px dotted #000; border-bottom: 1px dotted #000;\"><TABLE cellpadding='0' cellspacing='0'><TD align='middle' bgColor='#6060ff' vAlign='center' width='8%'><FONT color='#ffffff' size='+3' style='FONT-FAMILY: Times' title='Предупреждение'><B>&nbsp;i&nbsp;</B></FONT></TD></TD><TD vAlign='middle'>"+txt+"</TD></TABLE></div><br>"
return txt}


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=addMod(post.innerHTML,0,false)}}
</script>

<!-- окошко предупреждения-->
<script>
function addEx(str,from,internal){
var pos=0,pos2=0,newpos=0
if((pos=str.indexOf("[exs]",from))==-1) return str;
if((pos2=str.indexOf("[/exs]"),pos+5)==-1) return str;
newpos=str.indexOf("[exs]",pos+5)
if(newpos<pos2 && newpos!=-1) str=addEx(str,pos+5,true)
if((pos2=str.indexOf("[/exs]",pos+5))==-1) return str;
str=str.substring(0,pos)+makeEx(str.substring(pos+5,pos2))+str.substring(pos2+6,str.length)
if( str.indexOf("[exs]")!=-1 && internal==false) str=addEx(str,0,false)
return str}

function makeEx(txt){
txt="<br><div style=\"margin: 0px; padding: 0px; background-color:#FEF2F2; border-left: 1px solid #FF6060; border-top: 1px dotted #000; border-right: 1px dotted #000; border-bottom: 1px dotted #000;\"><TABLE cellpadding='0' cellspacing='0'><TD align='middle' bgColor='#ff6060' vAlign='center' width='8%'><FONT color='#ffffff' size='+3' style='FONT-FAMILY: Times' title='Грубое нарушение'><B>&nbsp;!&nbsp;</B></FONT></TD></TD><TD vAlign='middle'>"+txt+"</TD></TABLE></div><br>"
return txt}


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=addEx(post.innerHTML,0,false)}}
</script>

Код:

<!-- предупреждение-->
<style>
#button-mod {background-image:url('http://i029.radikal.ru/0804/26/e430252a0faf.png'); padding:0; line-height:0; background-position:center; background-repeat:no-repeat; height:26px; width:100%}
</style>
<script type="text/javascript">
if((document.getElementById("navadmin")) && (form=document.getElementById("form-buttons")))
form.getElementsByTagName("tr")[0].insertCell(18).innerHTML="<img src='/i/blank.gif' title='Предупреждение' id='button-mod'  onclick=\"bbcode('[mods]', '[/mods]');\"/>"
</script>

<!-- нарушение-->
<style>
#button-ex {background-image:url('http://i007.radikal.ru/0804/c8/e7c48348a35e.png'); padding:0; line-height:0; background-position:center; background-repeat:no-repeat; height:26px; width:100%}
</style>
<script type="text/javascript">
if((document.getElementById("navadmin")) && (form=document.getElementById("form-buttons")))
form.getElementsByTagName("tr")[0].insertCell(18).innerHTML="<img src='/i/blank.gif' title='Предупреждение' id='button-ex'  onclick=\"bbcode('[exs]', '[/exs]');\"/>"
</script>