What is the section of Javascript ? - wwOpenInstalled

Question

Ok so I start coding websites (yes I know I am almost 15 years late :0) and in many of the sites I see the following javascript:

<script language="javascript"><!--

var wwOpenInstalled;
if (wwOpenInstalled || parent.wwOpenInstalled) {
    if (window.Event) {
     document.captureEvents (Event.MOUSEUP);
    }
    document.onmouseup = (parent.wwOpenInstalled) ? parent.wwOnMouseUp : wwOnMouseUp;
}
//--></script>

This is a very simple question. Why is it here and what does it do ?

Answer 1

Do you use WebWasher, or McAfee Web Protection? That looks like code inserted by webWasher to trap links and protect against viruses or trojans.

Answer 2

By doing a quick google search on some of the keywords of the code, seems that this code is injected from a script of StatCounter, a service to track and get statistics of the visitors on your page.

But by reading the code, seems that is pretty outdated, the captureEvents function is now obsolete.

For website traffic analysis I highly recommend you Google Analytics.