var http; // Notre objet XMLHttpRequest

function createRequestObject()
{
    var http;
    if (window.XMLHttpRequest)
    { // Mozilla, Safari, IE7 ...
	        http = new XMLHttpRequest();
    }
    else if (window.ActiveXObject)
    { // Internet Explorer 6
        http = new ActiveXObject("Microsoft.XMLHTTP");
    }
    return http;
}

function gestionClic(varvoir)
{
    http = createRequestObject();
    http.open('GET', 'carla_nova_inc/presse.php?'+varvoir, true);
    http.onreadystatechange = handleAJAXReturn;
    http.send(null);
}

function handleAJAXReturn()
{
    if (http.readyState == 4)
    {
        if (http.status == 200)
        {
            document.getElementById('voirpresse').style.visibility = "visible";
            document.getElementById('resultat').innerHTML = http.responseText;
        }
        else
        {
            alert('Erreur');
        }
    }
}
function fermerpresse()
{
            document.getElementById('voirpresse').style.visibility = "hidden";
}