//<!--
function OpenPopup(Url, W, H){
    var features = "width=" + W + ",height=" + H + "left=1,top=1";
    window.open(Url, 'popup_vari', features);
}

//f per aprire popup
function lancio(finestra, w, h){
    var l = Math.floor((screen.width - w) / 2);
    var t = Math.floor((screen.height - h) / 2);
    window.open(finestra, 'popup', 'width=' + w + ',height=' + h + ',top=' + t + ',left=' + l);
}
//-->