function menuOpen(id) {
	var element = document.getElementById(id);
	cleanMenus();
	if (element) {
		element.style.display='block';
	}
}
function subMenuOpen(id, parentID) {
	menuOpen(parentID);
	var element = document.getElementById(id);
	var parent = document.getElementById(parentID);
	cleanSubMenus();
	if (element) {
		element.style.display='block';
	}
}

function cleanAll(){
	cleanMenus();
	cleanSubMenus();
}

function cleanMenus() {
	for (var i = 1; i<=4; i++) {
		if (document.getElementById('subMenu'+i)) {
			document.getElementById('subMenu'+i).style.display='none';
		}
	}
}

function cleanSubMenus() {
	for (var i = 1; i<=2; i++) {
		if (document.getElementById('subSubMenu'+i)) {
				document.getElementById('subSubMenu'+i).style.display='none';
		}
	}
}