function startmenu()
  {
    menu0.style.display = "none";
    menu1.style.display = "none";
    menu2.style.display = "none";
  }
  
  function menu0func()
  {
  	if(menu0.style.display == "none")
  	{
  		startmenu();
  		menu0.style.display = "block";
  	}
  	else
  	{
  		startmenu();
  	}
  }
  

  
  function menu1func()
  {
  	if(menu1.style.display == "none")
  	{
  		startmenu();
  		menu1.style.display = "block";
  	}
  	else
  	{
  		startmenu();
  	}
  }


  function menu2func()
  {
  	if(menu2.style.display == "none")
  	{
  		startmenu();
  		menu2.style.display = "block";
  	}
  	else
  	{
  		startmenu();
  	}
  }