Load Contao Piwik tracking after window load

contao-piwik-window-load.html

<!-- indexer::stop -->
<!-- Piwik -->
<script type="text/javascript">
    <!--//--><![CDATA[//><!--
    window.addEvent('load', function()
    {
        var pkBaseURL = 'https:' == document.location.protocol ? 'https://www.<domain>.<tld>/' : 'http://www.<domain>.<tld>/';
        Asset.javascript(pkBaseURL + 'piwik.js',
        {
            onLoad: function(){
                try {
                    var piwikTracker = Piwik.getTracker(pkBaseURL + 'piwik.php', <id>);
                    piwikTracker.trackPageView();
                    piwikTracker.enableLinkTracking();
                } catch( err ) {}
            }
        });
    });
    //--><!]]>
</script>
<!-- End Piwik Tag -->
<!-- indexer::continue -->

True, that's why I was asking. Btw. this not only the case for mootools but for window.onload in general (load event fires at the end of the document loading process, cf. MDN).