<script type="text/javascript">
var we=document.getElementsByTagName("ul")
var x=0
for (x=0; x<=(we.length-1); x++)
{if (we[x].innerHTML.indexOf("pa-online")!=-1)
{we[x].innerHTML=we[x].innerHTML.substring(0, (we[x].innerHTML.indexOf("pa-online")-11))+"<img src='адрес онлайн картинки' />"}
else if ((we[x].innerHTML.indexOf("pa-online")==-1)&&(we[x].innerHTML.indexOf("pa-author")!=-1))
{we[x].innerHTML=we[x].innerHTML+"<img src='адрес оффлайн картинки' />"}
}
</script>

<script type="text/javascript">
var a =document.getElementById('pun-status').innerHTML
if (a.indexOf("Гость")!=-1)
{document.getElementById('pun-status').innerHTML="<div class='formal'>"+"<form id='login'"+" class='container'"+" method='post'"+" action='http://testingmyforum1.4bb.ru/login.php?action=in'"+" onsubmit='return my_form(this)'>"+"<fieldset><legend><span>Введите ваше имя и пароль ниже</span></legend><div class='fs-box inline'>"+"<input type='hidden'"+" name='form_sent'"+" value='1' />"+"<input type='hidden'"+" name='redirect_url'"+" value='index.php' />"+"<p class='inputfield required'>"+"<label for='fld1'>Имя <em>(Обязательно)</em></label><br />"+"<span class='input'>"+"<input type='text'"+" id='fld1'"+" name='req_username'"+" size='25'"+" maxlength='25' /></span></p>"+"<p class='inputfield required'>"+"<label for='fld2'>Пароль <em>(Обязательно)</em></label><br />"+"<span class='input'>"+"<input type='password'"+" id='fld2'"+" name='req_password'"+" size='16'"+" maxlength='16' /></span></p></div></fieldset>"+"<p class='formsubmit'>"+"<input type='submit'"+" class='button'"+" name='login'"+" value='Войти' /></p></form></div>"}
function my_form(the_form)
{
var element_names = new Object()
    element_names["req_username"] = "Имя"
    element_names["req_password"] = "Пароль"

if (document.all || document.getElementById)
{
    for (i = 0; i < the_form.length; ++i)
    {
    var elem = the_form.elements[i]
    if (elem.name && elem.name.substring(0, 4) == "req_")
    {
        if (elem.type && (elem.type=="text" || elem.type=="textarea" || elem.type=="password" || elem.type=="file") && elem.value=='')
        {
        alert("\"" + element_names[elem.name] + "\" это поле обязательно для заполнения в этой форме.")
        elem.focus()
        return false
        }
    }
    }
}

return true
}
</script>

<script>
x =new String(document.getElementById("pun-navlinks").getElementsByTagName("li").innerHTML);
if (x.indexOf("Профиль") == -1) document.write("Сообщение гостям");
</script>

<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>