function show_govt_submenu(){
	if(document.getElementById('govt_submenu').style.visibility == "visible")
	{
		document.getElementById('govt_submenu').style.visibility = "hidden"
	}
	else
	{
		document.getElementById('govt_submenu').style.visibility = "visible"
		document.getElementById('national_submenu').style.visibility = "hidden"
		document.getElementById('famous_submenu').style.visibility = "hidden"
		document.getElementById('links_submenu').style.visibility = "hidden"
		document.getElementById('history_submenu').style.visibility = "hidden"
	}
}

function show_national_submenu(){
	if(document.getElementById('national_submenu').style.visibility == "visible")
	{
		document.getElementById('national_submenu').style.visibility = "hidden"
	}
	else
	{
		document.getElementById('national_submenu').style.visibility = "visible"
		document.getElementById('govt_submenu').style.visibility = "hidden"
		document.getElementById('famous_submenu').style.visibility = "hidden"
		document.getElementById('links_submenu').style.visibility = "hidden"
		document.getElementById('history_submenu').style.visibility = "hidden"
	}
}

function show_famous_submenu(){
	if(document.getElementById('famous_submenu').style.visibility == "visible")
	{
		document.getElementById('famous_submenu').style.visibility = "hidden"
	}
	else
	{
		document.getElementById('famous_submenu').style.visibility = "visible"
		document.getElementById('govt_submenu').style.visibility = "hidden"
		document.getElementById('national_submenu').style.visibility = "hidden"
		document.getElementById('links_submenu').style.visibility = "hidden"
		document.getElementById('history_submenu').style.visibility = "hidden"
	}
}

function show_links_submenu(){
	if(document.getElementById('links_submenu').style.visibility == "visible")
	{
		document.getElementById('links_submenu').style.visibility = "hidden"
	}
	else
	{
		document.getElementById('links_submenu').style.visibility = "visible"
		document.getElementById('govt_submenu').style.visibility = "hidden"
		document.getElementById('national_submenu').style.visibility = "hidden"
		document.getElementById('famous_submenu').style.visibility = "hidden"
		document.getElementById('history_submenu').style.visibility = "hidden"
	}
}

function show_history_submenu(){
	if(document.getElementById('history_submenu').style.visibility == "visible")
	{
		document.getElementById('history_submenu').style.visibility = "hidden"
	}
	else
	{
		document.getElementById('history_submenu').style.visibility = "visible"
		document.getElementById('govt_submenu').style.visibility = "hidden"
		document.getElementById('national_submenu').style.visibility = "hidden"
		document.getElementById('famous_submenu').style.visibility = "hidden"
		document.getElementById('links_submenu').style.visibility = "hidden"
	}
}