function stateChanged(idname) { 
    xmlhttp.onreadystatechange=function() {
        if (xmlhttp.readyState==4 && xmlhttp.status==200) {
            document.getElementById(idname).value = xmlhttp.responseText;
        }
    }
}
function openSend(php,idname) {
    stateChanged(idname);
    xmlhttp.open("GET",php,true);
    xmlhttp.send(); 
}   
function showHint() {

    if (window.XMLHttpRequest) {
        xmlhttp=new XMLHttpRequest();
    } else {
        xmlhttp=new ActiveXObject("Microsoft.XMLHTTP");
    }
    openSend("time.php", "Time");
    openSend("date1.php", "Date1");
    openSend("date2.php", "Date2");
    return;
}

These two say aborted (in Firebug) and doesn't return a value. Why is that? Is it because I can't send more than 1 request?

    openSend("time.php", "Time");
    openSend("date1.php", "Date1");

If I can't, how could I achieve 3 requests with only one invocation?