var currentOpenMenu = 2;
	var closeMenuTimer = null;
	function openMenu(menuId) 
	{
		if (closeMenuTimer != null) 
		{
			clearTimeout(closeMenuTimer);
		}
		if (currentOpenMenu != 1 && currentOpenMenu != menuId) 
		{
			closeMenu(currentOpenMenu);
		}
		if (document.getElementById('dropdown-'+menuId) != null) 
		{
			document.getElementById('dropdown-'+menuId).style.display = 'block';
			currentOpenMenu = menuId;
		}
	}
	
	function closeMenu(menuId) 
	{
		if (document.getElementById('dropdown-'+menuId) != null) 
		{
			document.getElementById('dropdown-'+menuId).style.display = 'none';
			currentOpenMenu = 1;
		}
	}