function boomerang(src, dcnet, boom)
{
    document.write("<script type='text/javascript'>var img; img = new Image; img.src='http://ad.nl.doubleclick.net/activity;src="+src+";dcnet="+dcnet+";boom="+boom+";sz=1x1;ord=1?';</script>");
    document.write("<noscript><img src='http://ad.nl.doubleclick.net/activity;src="+src+";dcnet="+dcnet+";boom="+boom+";sz=1x1;ord=1?'></noscript>");
}

function sitestat(ns_1)
{
    ns_1 += "&ns_t=" + (new Date()).getTime();
    ns_pixelUrl = ns_1;
    ns_0 = document.referrer;
    ns_0 = (ns_0.lastIndexOf("/") == ns_0.length-1)?ns_0.substring(ns_0.lastIndexOf("/"),0):ns_0;
    if (ns_0.length > 0)
    {
        ns_1 += "&ns_referrer=" + escape(ns_0);
    }
    if (document.images)
    {
        ns_2 = new Image();
        ns_2.src = ns_1;
    }
    else
    {
        document.write("<img src='" + ns_1 + "' width='1' height='1' alt=''>");
    }
}

function stir1(clientname,sitename,countername, channel)
{
    if (document.cookie.indexOf('ns_CFilter') != -1 || document.cookie.indexOf('ns_Cfilter') != -1)
    {
        sitestat("http://nl.sitestat.com/"+clientname+"/"+sitename+"/s?"+countername + "&ns_channel=" + channel);
    }
}

/*function stir2(param)
{
    document.write("<iframe src='http://www.msn.nl/img/nl/nl-nl/stir/iframe_contents_stir.htm?" + param + "' width='0' height='0' border='no' frameborder='0'></iframe>");
}*/

function boomerang_stir(src, dcnet, boom, client, sitename, countername, channel)
{
    boomerang(src, dcnet, boom);
    stir1(client,sitename, countername, channel);
}