var xmlHttp;
        try {
            xmlHttp = new XMLHttpRequest();
        } catch(e) {
            try {
                xmlHttp = new ActiveXObject("Msxml2.XMLHTTP");
            }
            catch (e) {
                try {
                    xmlHttp = new ActiveXObject("Microsoft.XMLHTTP");
                }
                catch (e) {
                    alert("Your browser does not support AJAX!");
                    return false;
                }
            }
        }
 xmlHttp = this.createTransport();
 xmlHttp.open("POST", "test.jsp");
 xmlHttp..send("test text");

xmlHttp..send("test text");

xmlHttp.onreadystatechange = function() { alert("Все было чики-пуки!!!"); return false; };
xmlHttp.open("POST", "test.php", true);
xmlHttp.setRequestHeader("Content-Type", "application/x-www-form-urlencoded;");
xmlHttp.send("name=Chikatilo");