function ShowNavSection(menuId, sectionId) {
	var menu = document.getElementById(menuId);
	var section = document.getElementById(sectionId);
	for (var i = 0; i < menu.childNodes.length; i++) {
		var el = menu.childNodes[i];
		if (el.className == 'navitems' && el != section)
			el.style.display = 'none';
	}
	if (section.style.display == 'block')
		section.style.display = 'none';
	else section.style.display = 'block';
	return false;
}

function SetNavCurrent(menuId, itemId) {
	var menu = document.getElementById(menuId);
	if (menu) {
		for (var i = 0; i < menu.childNodes.length; i++) {
			var items = menu.childNodes[i];
			if (items.className == 'navitems') {
				for (var j = 0; j < items.childNodes.length; j++) {
					var el = items.childNodes[j];
					if (el.tagName == 'DIV') {
						if (el.id == items.id + '_' + itemId) {
							el.className = 'navitemcurr';
							ShowNavSection(menuId, items.id);
						}
						else el.className = 'navitem';
					}
				}
			}
		}
	}
	return false;
}