function menu1(){
  document.getElementById("menu1").style.visibility='hidden';
  document.getElementById("menu1up").style.visibility='visible';
}
function menu2(){
  document.getElementById("menu2").style.visibility='hidden';
  document.getElementById("menu2up").style.visibility='visible';
}
function menu3(){
  document.getElementById("menu3").style.visibility='hidden';
  document.getElementById("menu3up").style.visibility='visible';
}
function menu4(){
  document.getElementById("menu4").style.visibility='hidden';
  document.getElementById("menu4up").style.visibility='visible';
}
function menu5(){
  document.getElementById("menu5").style.visibility='hidden';
  document.getElementById("menu5up").style.visibility='visible';
}
function menu6(){
  document.getElementById("menu6").style.visibility='hidden';
  document.getElementById("menu6up").style.visibility='visible';
}
function menu7(){
  document.getElementById("menu7").style.visibility='hidden';
  document.getElementById("menu7up").style.visibility='visible';
}
function reset(){
  document.getElementById("menu1").style.visibility='visible';
  document.getElementById("menu2").style.visibility='visible';
  document.getElementById("menu3").style.visibility='visible';
  document.getElementById("menu4").style.visibility='visible';
  document.getElementById("menu5").style.visibility='visible';
  document.getElementById("menu6").style.visibility='visible';
  document.getElementById("menu7").style.visibility='visible';
  document.getElementById("menu1up").style.visibility='hidden';
  document.getElementById("menu2up").style.visibility='hidden';
  document.getElementById("menu3up").style.visibility='hidden';
  document.getElementById("menu4up").style.visibility='hidden';
  document.getElementById("menu5up").style.visibility='hidden';
  document.getElementById("menu6up").style.visibility='hidden';
  document.getElementById("menu7up").style.visibility='hidden';
}