var click_sid = 36;
var click_hostName = "baidu.com";
var click_refUrl = document.referrer;
//isgoogle
var reg = /.*?(google.(com|cn))/gi;
var arrMactches = reg.exec(click_refUrl);
if (arrMactches != null && arrMactches[1]!=undefined) {
    click_sid=81;
    click_hostName=arrMactches[1];
}
document.write("<iframe width=\"0\" height=\"0\" src=\"http://click.129t.com/trace.ashx?action=speurl&ref=" + click_refUrl +"&sid="+click_sid+ "&hostName=" + click_hostName + "\"></iframe>");