function showlog(szLog){
        szLog = "[" + Date() + "]:" +szLog + "\n";
        txt.value = szLog + txt.value;
        
    }

function getObjXMLReq()
{
    var objXMLReq;
    //for Mozilla and Safari etc.
    if (window.XMLHttpRequest){
        objXMLReq = new XMLHttpRequest();
    }
    // IE5 for the mac claims to support window.ActiveXObject, but throws an error when it's used
    else if (window.ActiveXObject && !(navigator.userAgent.indexOf('Mac') >= 0 && navigator.userAgent.indexOf("MSIE") >= 0)){
        objXMLReq = new ActiveXObject("Microsoft.XMLHTTP");
    }
    return objXMLReq;
}

function adReq() {
    var objXMLReq = getObjXMLReq();
    showlog("getObjXMLReq");
    if(!objXMLReq){
        return;
    }
    var url = "http://www.bbb.com/index";
    
    objXMLReq.open("GET", url, false);
    objXMLReq.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

    ret = objXMLReq.responseText;
    
    showlog(ret);
}