var currentlyOpenMenuId;

function menucloseall(except) {
  for (i = 1; i <= 3; i++) {
    if (i != except) {
      document.getElementById("m" + i).style.display = 'none';
    } else {
      document.getElementById("m" + i).style.display = 'block';
    }
  }
}

function menutoggle(i,o) {
  menucloseall();
  if (currentlyOpenMenuId == i) {
    document.getElementById(i).style.display = 'none';
    currentlyOpenMenuId = null;
  } else {
    document.getElementById(i).style.display = 'block';
    currentlyOpenMenuId = i;
  }
}

function menuinit(o) {
  menucloseall(o);
  currentlyOpenMenuId = "m" + o;
}