function adsense_log_click() {
//    alert(this.innerHTML);
    if (window.status.indexOf('go to') == 0) {
        adsense_log_url_image = new Image();
        adsense_log_url_image.src = 'as.php?R=' +
            escape(document.location) + '&U=' +
            escape(window.status.substring(6));
    } else if (window.status.indexOf('gå till') == 0) {
        adsense_log_url_image = new Image();
        adsense_log_url_image.src = 'as.php?R=' +
            escape(document.location) + '&U=' +
            escape(window.status.substring(8));
    } else if (window.status.indexOf('View ads about') == 0) {
        adsense_log_url_image = new Image();
        adsense_log_url_image.src = 'as.php?R=' +
            escape(document.location) + '&U=' +
            escape(window.status.substring(15));
    } else if (window.status.indexOf('Se annonser om') == 0) {
        adsense_log_url_image = new Image();
        adsense_log_url_image.src = 'as.php?R=' +
            escape(document.location) + '&U=' +
            escape(window.status.substring(15));
    }
}

var elements;
if (document.getElementsByTagName) {
    elements = document.body.getElementsByTagName("IFRAME");
} else if (document.body.all) {
    elements = document.body.all.tags("IFRAME");
} else {
    elements = Array();
}
for (var i = 0; i < elements.length; i++) {
    if (elements[i].src.indexOf('googlesyndication.com') > -1) {
        elements[i].onfocus = adsense_log_click;
    }
}