function submenu(intItem) {

    for (i = 1; i <= 3; i++) {
        document.getElementById("sm" + i).style.display = "block";
        document.getElementById("smo" + i).style.display = "none";
        document.getElementById("disp" + i).style.display = "none";
    }

    document.getElementById("sm" + intItem).style.display = "none";
    document.getElementById("smo" + intItem).style.display = "block";
    document.getElementById("disp" + intItem).style.display = "block";

}
function submenuout() {

    for (i = 1; i <= 3; i++) {
        document.getElementById("sm" + i).style.display = "block";
        document.getElementById("smo" + i).style.display = "none";
    }
}