/* coding expertise provided by Ed Callendar */	
function showMenu(my_id) {
	if (document.all && document.getElementById) {
		ul = document.getElementById(my_id);
		ul.style.display = 'block';
	}
}
function hideMenu(my_id) {
	if (document.all && document.getElementById) {
		ul = document.getElementById(my_id);
		ul.style.display = 'none';
	}
}