function popupClose() {
	document.getElementById('drop1').className = "hid";
}


function start_countdown(nb_seconds)
{
    if(isNaN(nb_seconds)){ return; }
    setTimeout('next_countdown('+nb_seconds+')', 1);
}

function next_countdown(nb_seconds)
{
    if(nb_seconds <= 0)
    {
        document.getElementById('countdown').innerHTML = '';
        return;
    }
    var nb = nb_seconds % (60*60*24); // on strip le nombre si ca depasse une journee
    var s = nb % 60;
    var m = ((nb - s) / 60) % 60;
    var h = (nb - s - m * 60) / 60 / 60;
    if(h < 10) h = '0' + h;
    if(m < 10) m = '0' + m;
    if(s < 10) s = '0' + s;
    document.getElementById('countdown').innerHTML = '&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;'+h+':'+m+':'+s;
    setTimeout('next_countdown('+(nb-1)+')', 1000);
}