var xmlHttp;
var xmlHttp2;
var xmlHttp3;
var xmlHttp4;

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)
        xmlHttp2 = new XMLHttpRequest();
    else
        xmlHttp2 = new ActiveXObject("Microsoft.XMLHTTP");
    xmlHttp2.open("GET", url, true);
    xmlHttp2.onreadystatechange = xmlhttpChange2;
    xmlHttp2.send(null);
    //xmlDoc=xmlHttp.responseText;
    //return xmlHttp.responseText;
}
function request3(url) {
    if (window.XMLHttpRequest)
        xmlHttp3 = new XMLHttpRequest();
    else
        xmlHttp3 = new ActiveXObject("Microsoft.XMLHTTP");
    xmlHttp3.open("GET", url, true);
    xmlHttp3.onreadystatechange = xmlhttpChange3;
    xmlHttp3.send(null);
    //xmlDoc=xmlHttp.responseText;
    //return xmlHttp.responseText;
}
function request4(url) {
    if (window.XMLHttpRequest)
        xmlHttp4 = new XMLHttpRequest();
    else
        xmlHttp4 = new ActiveXObject("Microsoft.XMLHTTP");
    xmlHttp4.open("GET", url, true);
    xmlHttp4.onreadystatechange = xmlhttpChange4;
    xmlHttp4.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);
}