<!--Checks browser version based on capabilities-->
var browservers = '';
if (window.addEventListener)
    browservers = 'FF';
else if (window.attachEvent)
    browservers = 'IE';
else
    browservers = 'OTHER';
<!--End Browser check-->
var elements;
var inAdFrame = false;

function onMoveOverFF(e)
{
    inAdFrame = true;
}

function onMoveOutFF(e)
{
    inAdFrame = false;
}

function adsense_log_click()
{
	if ((browservers != 'FF') && (window.status.indexOf('go to') == 0))
	{
		adsense_log_url_image = new Image();
		adsense_log_url_image.src = '/http.clicklogger.php?R=' +
			escape(document.location) + '&U=' +
			escape(window.status.substring(6)) +
            '&L=' + user_logged_in;
	}
	else if (inAdFrame)
	{
		adsense_log_url_image = new Image();
		adsense_log_url_image.src = '/http.clicklogger.php?R=' +
			escape(document.location) + '&U=Unknown' +
            '&L=' + user_logged_in;
    }
}

elements = document.getElementsByTagName("iframe");

for (var i = 0; i < elements.length; i++)
{
    if(elements[i].src.indexOf('googlesyndication.com') > -1)
    {
        if (document.layers)
            elements[i].captureEvents(Events.ONFOCUS);
        if (browservers == 'IE')
            elements[i].onfocus = adsense_log_click;
        else if (browservers == 'FF')
        {
            elements[i].addEventListener('mouseover', onMoveOverFF, true);
            window.addEventListener('mouseover', onMoveOutFF, true);
            window.addEventListener('unload', adsense_log_click, false);
        }
        else
            elements[i].onfocus = adsense_log_click;
    }
}