function showCat() {
	var menu = document.getElementById('subMenu');
	menu.style.display = 'block';
}
function hideCat() {
	var menu = document.getElementById('subMenu');
	menu.style.display = 'none';
}

function showMed() {
	var menu = document.getElementById('subMenu2');
	menu.style.display = 'block';
}
function hideMed() {
	var menu = document.getElementById('subMenu2');
	menu.style.display = 'none';
}

function showSubCat( id ) {
	var menu = document.getElementById('child' + id);
	menu.style.display = 'block';
}
function hideSubCat( id ) {
	var menu = document.getElementById('child' + id);
	menu.style.display = 'none';
}