What This Does
This will make a random logo which you select appear on the top of your board.

You must have JavaScript enabled.

Now let's get started, shall we?
Go to your admincp and open up the "header" template.

At the very begining of your header template, add:

<SCRIPT LANGUAGE="JavaScript">
 
<!-- Begin Random Logo In Header Script
 
var theImages = new Array() // do not change this
 
<!-- Edit the url images to match yours
theImages[0] = 'http://www.yoursite.com/forum/images/banner1.gif'
theImages[1] = 'http://www.yoursite.com/forum/images/banner2.gif'
 
 
 
var j = 0
var p = theImages.length;
var preBuffer = new Array()
for (i = 0; i < p; i++){
preBuffer[i] = new Image()
preBuffer[i].src = theImages[i]
}
var whichImage = Math.round(Math.random()*(p-1));
function showImage(){
document.write('<div align="center"><a href="index.php"><img src="'+theImages[whichImage]+'" border="0" alt="$vboptions[bbtitle]" /></a></div>');
}
 
// End -->
</script>

Find:

<a name="top"></a>
<table border="0" width="$stylevar[outertablewidth]" cellpadding="0" cellspacing="0" align="center">
<tr>
    <td align="$stylevar[left]" class="logobg"><a href="$vboptions[forumhome].php?$session[sessionurl]"><img src="$stylevar[titleimage]" border="0" alt="$vboptions[bbtitle]" /></a></td>
</tr>
</table>

And replace it with:

<SCRIPT LANGUAGE="JavaScript">
 
 
<!-- Begin
showImage();
// End --></script>

And you're done

To add more images, go back to:

theImages[1] = 'http://www.yoursite.com/forum/images/banner2.gif'

And after, you can add:

theImages[2] = 'http://www.yoursite.com/forum/images/banner3.gif'

спасибо за статью. на рутрекере как видел. что при каждой перезагрузке страницы лого меняется, все хотел спросить как так сделать, да забывал, а тут уже решение