function Fade(Id, Val, To)
{  
    Elm = document.getElementById(Id);
    Val += 10 * To;
        
    if (navigator.appName.indexOf("Microsoft") != -1)
        Elm.style.filter = 'alpha(opacity='+Val+')';
    else if (Elm.style.MozOpacity)
        Elm.style.MozOpacity = (Val / 100);
    else     
        Elm.style.opacity = (Val / 100);
        
    if (To > 0)  
        Elm.style.display = 'block';  
        
    if ((Val > 0) && (Val < 100))
        setTimeout('Fade(\''+Id+'\', '+Val+', '+To+')', 40);
    else if (Val <= 0)             
        Elm.style.display = 'none';  
}

function displayLngMenu()
{           
    var Elm = document.getElementById('lngmenu');
    
    if (Elm.style.display == 'none')     
        Fade('lngmenu', 0, 1);
    else
        Fade('lngmenu', 100, -1);
}