"NaN" error in mysql, please advise

[fung9571]

Hi,

I am running xanga tracker site~

I have a "NaN" error in mysql.

After I moved my database from old server to new server.
There is a "NaN" add to mysql database automatically. And it happened to the old server too.



Example,
It should show as:
======
Page Viewed:http://www.xanga.com/username
Referrer:http://www.xanga.com/private/yourhome.aspx?user=another-username
================


However, it shows with the "NaN" error,
========
Page Viewed:NaNhttp://www.xanga.com/private/yourhome.aspx?user=another-username
Referrer:
================

The Referrer shows in "Page Viewed" accidently with "NaN" is added automatically.
And the "Page Viewed" is disappeared.


I need some advise to help me fix this "NaN error".
I research in google, and I dont think it help.


ref, this is our code,
<script type='text/javascript'>
var xanga = "username";
var from_url = escape(document['referrer']);
var links = document.getElementsByTagName('a');
for (var i=0; i<links.length; i++) {
if (links[i].href.match('http://www.xanga.com') && links[i].innerHTML.match('xanga') && (links[i+2].href.match

('/logout.aspx') || links[i+2].href.match('/signin.aspx'))) {
document.write('<img src="http://www.xxxxxxx.com/process.php?xanga='+xanga.toLowerCase()+'&visitor='+links

[i+1].innerHTML.toLowerCase()+'&url=' + document.location+'&ref='+from_url +'" width="0" height="0">');
}
}
</script>





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