function showmenu(id) {
  document.getElementById('submenu'+id).style.display = "block";
}

function hidemenu(id) {
  document.getElementById('submenu'+id).style.display = "none";
}

function leftmenu(id) {
  if (document.getElementById('leftmenu'+id).style.display == "block") {
    document.getElementById('leftmenu'+id).style.display = "none";
  } else {
    document.getElementById('leftmenu'+id).style.display = "block";
  }
}