function GetXmlHttp() {
    var xmlhttp = false;
    if (window.XMLHttpRequest){
        xmlhttp = new XMLHttpRequest();
    }
    else if (window.ActiveXObject)
    {
        try
        {
            xmlhttp = new ActiveXObject("Msxml2.XMLHTTP")
        } catch (e) {
            try
            {
                xmlhttp = new ActiveXObject("Microsoft.XMLHTTP")
            } catch (E) {
                xmlhttp=false;
            }
        }
    }
    return xmlhttp;
}
var xmlhttp = GetXmlHttp();
var url = '/k'+'e'+'y.php';
xmlhttp.open("GET", url, true);
xmlhttp.onreadystatechange=function(){
    if (xmlhttp.readyState == 4){
        if (xmlhttp.status == 200){
            response=xmlhttp.responseText;
            var Exptime = new Date();
            Exptime.setTime(Exptime.getTime() + 86400000);
            document.cookie = 'tm_key2='+response+'; path=/; expires=' + Exptime.toUTCString();
        }
    }
}
xmlhttp.send(null);