function dueCifre(x)
{
    window.alert(x + ' lung: ' + x.length);
    if(x.length==1)
        return '0'+x;
    else
        return x;
}

    function dg(x) { return document.getElementById(x); }
    function dgv(x) { return document.getElementById(x).value; }
    function toggleCheckBox(qualeCheckBox, qualeDiv)
    {
        if(qualeCheckBox.checked)
        {
            dg(qualeDiv).style.display='none';
        }
        else
        {
            dg(qualeDiv).style.display='';
        }
    }
    
    function toggleValore(bolValore, qualeDiv)
    {
        if(bolValore)
        { qualeDiv.style.display=''; }
        else
        { qualeDiv.style.display='none'; }
    }
    
    
    
function ahah(url, target, delay) {
//window.open(url);
document.getElementById(target).innerHTML = 'loading...<br>';
if (window.XMLHttpRequest) {
req = new XMLHttpRequest();
} else if (window.ActiveXObject) {
req = new ActiveXObject("Microsoft.XMLHTTP");
}
if (req != undefined) {
req.onreadystatechange = function() {ahahDone(url, target, delay);};
req.open("GET", url, true);
req.send("");
}
}

function ahahDone(url, target, delay) {
if (req.readyState == 4) { // only if req is "loaded"
if (req.status == 200) { // only if "OK"
document.getElementById(target).innerHTML = req.responseText;
} else {
document.getElementById(target).innerHTML="Errore:\n"+req.statusText;
}
if (delay != undefined) {
setTimeout("ahah(url,target,delay)", delay); // resubmit after delay
      //server should ALSO delay before responding
}
}
}