function showMenu(menuNumbers) {

    menusToShow = menuNumbers.split(/,/);

	

    for (var i = 0; i < menusToShow.length; i++) {

        var menuId = "navMenu" + menusToShow[i];

        document.getElementById(menuId).style.display = "block";

    }

}



function closeAllMenus() {

	for (var i = 0; i < 8; i++)

		document.getElementById("navMenu" + (i+1)).style.display = "none";

}