var req;

function ld() {
    if(XMLHttpRequest) 
	{
        req = new XMLHttpRequest();
    } 
	else if(window.ActiveXObject) 
	{
        req = new ActiveXObject("Microsoft.XMLHttp");
    } 
	else {
        alert("Проблемы(");
    }
    req.open("GET", "./index.cgi", true);
    req.send(null);
    req.onreadystatechange = readyState;
}

function readyState() {
    if(req.readyState == 4) {
        document.getElementById("info").innerHTML = req.responseText;
    }
}