flag = false;

function MapMenu1() {
  if(flag) {
  Map1.style.visibility = "hidden";
  Map2.style.visibility = "hidden";
  Map3.style.visibility = "hidden";
  Map4.style.visibility = "hidden";
  Map5.style.visibility = "hidden";
  Map6.style.visibility = "hidden";
  Map7.style.visibility = "hidden";
  Map8.style.visibility = "hidden";
  Map9.style.visibility = "hidden";
  Map10.style.visibility = "hidden";
  }else {
  Map1.style.visibility = "visible";
  Map2.style.visibility = "hidden";
  Map3.style.visibility = "hidden";
  Map4.style.visibility = "hidden";
  Map5.style.visibility = "hidden";
  Map6.style.visibility = "hidden";
  Map7.style.visibility = "hidden";
  Map8.style.visibility = "hidden";
  Map9.style.visibility = "hidden";
  Map10.style.visibility = "hidden";
  }
  flag = !flag;
}

function MapMenu2() {
  if(flag) {
  Map1.style.visibility = "hidden";
  Map2.style.visibility = "hidden";
  Map3.style.visibility = "hidden";
  Map4.style.visibility = "hidden";
  Map5.style.visibility = "hidden";
  Map6.style.visibility = "hidden";
  Map7.style.visibility = "hidden";
  Map8.style.visibility = "hidden";
  Map9.style.visibility = "hidden";
  Map10.style.visibility = "hidden";
  }else {
  Map1.style.visibility = "hidden";
  Map2.style.visibility = "visible";
  Map3.style.visibility = "hidden";
  Map4.style.visibility = "hidden";
  Map5.style.visibility = "hidden";
  Map6.style.visibility = "hidden";
  Map7.style.visibility = "hidden";
  Map8.style.visibility = "hidden";
  Map9.style.visibility = "hidden";
  Map10.style.visibility = "hidden";
  }
  flag = !flag;
}

function MapMenu3() {
alert('a');
  if(flag) {
  Map1.style.visibility = "hidden";
  Map2.style.visibility = "hidden";
  Map3.style.visibility = "hidden";
  Map4.style.visibility = "hidden";
  Map5.style.visibility = "hidden";
  Map6.style.visibility = "hidden";
  Map7.style.visibility = "hidden";
  Map8.style.visibility = "hidden";
  Map9.style.visibility = "hidden";
  Map10.style.visibility = "hidden";
  }else {
  Map1.style.visibility = "hidden";
  Map2.style.visibility = "hidden";
  Map3.style.visibility = "visible";
  Map4.style.visibility = "hidden";
  Map5.style.visibility = "hidden";
  Map6.style.visibility = "hidden";
  Map7.style.visibility = "hidden";
  Map8.style.visibility = "hidden";
  Map9.style.visibility = "hidden";
  Map10.style.visibility = "hidden";
  }
  flag = !flag;
}

function MapMenu4() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "visible";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  flag = !flag;
}

function MapMenu5() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map5.style.visibility = "visible"; }
  flag = !flag;
}

function MapMenu6() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map6.style.visibility = "visible"; }
  flag = !flag;
}

function MapMenu7() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map7.style.visibility = "visible"; }
  flag = !flag;
}

function MapMenu8() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map8.style.visibility = "visible"; }
  flag = !flag;
}

function MapMenu9() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map9.style.visibility = "visible"; }
  flag = !flag;
}

function MapMenu10() {
  if(flag) { Map1.style.visibility = "hidden";Map2.style.visibility = "hidden";Map3.style.visibility = "hidden";Map4.style.visibility = "hidden";Map5.style.visibility = "hidden";Map6.style.visibility = "hidden";Map7.style.visibility = "hidden";Map8.style.visibility = "hidden";Map9.style.visibility = "hidden";Map10.style.visibility = "hidden"; }
  else { Map10.style.visibility = "visible"; }
  flag = !flag;
}