getTrackClicks()) { return ''; } ob_start(); ?> addText(' '.$script_block.' '); /* Asynchronous version. We can't use this currently because the tracking script uses document.write, and that causes problems if the page is already fully loaded. Chrome also has security issues with asynchronous document.write. QualityUnit has been asked to update the script to allow for this. $this->addText(' '); */ return parent::_toHtml(); } }