function ShowMenu(URL, WinTitle, Winwidth, Winheight, WinLeft, WinTop){
attr = "resizable=no,width=" + Winwidth + ",height=" + Winheight + ",screenX=" + WinLeft + ",screenY=" + WinTop + ",left=" + WinLeft + ",top=" + WinTop + "";
msgWindow=open(URL, WinTitle, attr);
if (msgWindow.opener == null) msgWindow.opener=self;
}

function ChangeMenu(file){
top.opener.window.location.href = file;
}


function onpal(){
         window.open("live_piede.php","_self");
}

function offpal(){
         window.open("live_piedevuoto.php","_self");
}