function trackPageviewDoubleclick(url) {
    var a = Math.random() * 10000000000000;
    var p = new Image();
    switch (url) {
        case '/' :
            p.src = "http://ad-emea.doubleclick.net/activity;src=2500160;type=hoors195;cat=beter789;ord=" + a + "?";
            break;
        case '/doe-de-hoorscan/' :
            p.src = "http://ad-emea.doubleclick.net/activity;src=2500160;type=hoors195;cat=hoors472;ord=" + a + "?";
            break;
        case '/earcheck/beterhoren/Stap5Result' :
            p.src = " http://ad-emea.doubleclick.net/activity;src=2500160;type=hoors195;cat=hoors296;ord=" + a + "?";
            break;
        case '/scan/email/complete' :
            p.src = " http://ad-emea.doubleclick.net/activity;src=2500160;type=hoors195;cat=hoors192;ord=" + a + "?";
            break;
    }
}