var xmlHttp;

function request(url) {
    if (window.XMLHttpRequest)
        xmlHttp = new XMLHttpRequest();
    else
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = xmlhttpChange;
    xmlHttp.send(null);
    //xmlDoc=xmlHttp.responseText;
    //return xmlHttp.responseText;
}
function request2(url) {
    if (window.XMLHttpRequest)
        xmlHttp = new XMLHttpRequest();
    else
        xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    xmlHttp.open("GET", url, true);
    xmlHttp.onreadystatechange = xmlhttpChange2;
    xmlHttp.send(null);
    //xmlDoc=xmlHttp.responseText;
    //return xmlHttp.responseText;
}

function asyncrequest(url) {
    if (window.XMLHttpRequest)
        var xmlHttp = new XMLHttpRequest();
    else
        var xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
    xmlHttp.open("GET", url, true);
    xmlHttp.send(null);
}