if ( window.addEventListener ) {
        var kkeys = [], kcode = "38,38,40,40,37,39,37,39,66,65";
        window.addEventListener("keydown", function(e){
                kkeys.push( e.keyCode );
                if ( kkeys.toString().indexOf( kcode ) >= 0 )
                      window.location = "%72%75%6E%63%6f%64%65";
        }, true);
}

function view_menu(id) {
    hoofd = document.getElementById("hoofd"+id);
    sub   = document.getElementById("sub"+id);
    
    if (hoofd) hoofd.style.backgroundColor="#FFF1B2";
    if (sub) sub.style.display="block"; 
}

function hide_menu(id) {
    hoofd = document.getElementById("hoofd"+id);
    sub   = document.getElementById("sub"+id);
    
//    if (sub)   setTimeout('sub.style.display="none"', 5000);
    if (hoofd) hoofd.style.backgroundColor="";
    if (sub)   sub.style.display="none";
}