- You have to insert the following code in your webpages :
HTML : 
<script type="text/javascript" src="/w3perl/resources/js/w3perl_tag.js"></script>
PHP :
print "<script type=\"text/javascript\" src=\"/w3perl/resources/js/w3perl_tag.js\"></script>\n";
at the end of the webpage, just before the closing </BODY> tag.
- Make sure /w3perl/logs/ are writeable by the server
- Make sure /w3perl/logs/ is password protected.
- PHP must be enable on your server.