function menus1()
{
	var m1 = document.getElementById("menu1");
	var m2 = document.getElementById("menu2");
	var m3 = document.getElementById("menu3");
	var isVisible = m1.style.display;
	if(isVisible == "block")
	{
		m1.style.display = "none";
		m2.style.display = "none";
		m3.style.display = "none";
	}
	else
	{
		m1.style.display = "block";
		m2.style.display = "block";
		m3.style.display = "block";
	}
}

function menus2()
{
	var m4 = document.getElementById("menu4");
	var m5 = document.getElementById("menu5");
	var isVisible = m4.style.display;
	if(isVisible == "block")
	{
		m4.style.display = "none";
		m5.style.display = "none";
	}
	else
	{
		m4.style.display = "block";
		m5.style.display = "block";
	}
}
	
function menus3()
{
	var m6 = document.getElementById("menu6");
	var m7 = document.getElementById("menu7");
	var m8 = document.getElementById("menu8");
	var m9 = document.getElementById("menu9");
	var isVisible = m6.style.display;
	if(isVisible == "block")
	{
		m6.style.display = "none";
		m7.style.display = "none";
		m8.style.display = "none";
		m9.style.display = "none";
	}
	else
	{
		m6.style.display = "block";
		m7.style.display = "block";
		m8.style.display = "block";
		m9.style.display = "block";
	}
}