function scanMenus() {
	var menus = $$('ul.navMenus');
	
	var i;
	for( i = 0; i < menus.length; i++ ) {
		var menu = menus[i];
		initMenu( menu );
	}
}

function initMenu( menu ) {
	var childs = menu.childNodes;
	var i;
	for( i = 0; i < childs.length; i++ ) {
		var child = childs[i];
		if( child.nodeName.toLowerCase() == 'li' ) {
			var liChilds = child.childNodes;
			var j;
			for( j = 0; j < liChilds.length; j++ ) {
				if( liChilds[j].nodeName.toLowerCase() == 'ul' ) {
					var menuUL = liChilds[j];
					menuUL.style.display = 'none';
					child.onmouseover = showFunction( menuUL );
					child.onmouseout = hideFunction( menuUL );
				}
			}
		}
	}
}

function showFunction( menuUL ) {
	return function() {
		var menu = menuUL;
		menu.style.display = '';
		menu.style.zIndex = '9999';
	}
}

function hideFunction( menuUL ) {
	return function() {
		var menu = menuUL;
		menu.style.display = 'none'; 
		menu.style.zIndex = '9999';
	}
}

Event.observe(window, 'load', scanMenus);