// Menu JavaScript for Instructional Technology Website

function showMenu(selection) {
	// hide all other submenus
	if (selection != "submenu1") {
		document.getElementById('submenu1').style.display = "none"
	}
	if (selection != "submenu2") {
		document.getElementById('submenu2').style.display = "none"
	}
	if (selection != "submenu3") {
		document.getElementById('submenu3').style.display = "none"
	}
	if (selection != "submenu4") {
		document.getElementById('submenu4').style.display = "none"
	}
	if (selection != "submenu5") {
		document.getElementById('submenu5').style.display = "none"
	}
	if (selection != "submenu6") {
		document.getElementById('submenu6').style.display = "none"
	}
	if (selection != "submenu7") {
		document.getElementById('submenu7').style.display = "none"
	}
	if (selection != "submenu8") {
		document.getElementById('submenu8').style.display = "none"
	}
	//show selected submenu
	document.getElementById(selection).style.display = "block"
	return true
}

function hideMenu(selection) {
	document.getElementById(selection).style.display = "none"
	return true
}

function hideAllMenus() {
	document.getElementById('submenu1').style.display = "none"
	document.getElementById('submenu2').style.display = "none"
	document.getElementById('submenu3').style.display = "none"
	document.getElementById('submenu4').style.display = "none"
	document.getElementById('submenu5').style.display = "none"
	document.getElementById('submenu6').style.display = "none"
	document.getElementById('submenu7').style.display = "none"
	document.getElementById('submenu8').style.display = "none"
}
	
document.onclick = hideAllMenus