function MK(menu_id)
{
	var menu = document.getElementById(menu_id);
	if (menu == null || menu.childNodes.length != 2) return;
	var polozky = menu.childNodes[1];
	var titulek = menu.childNodes[0];
	if (polozky.style.display == "none")
	{
		titulek.className = titulek.className.replace("lm-zab", "lm-roz");
		polozky.style.display = "";
		MenuZavritPotomky(menu.parentNode, menu);
	}
	else
	{
		titulek.className = titulek.className.replace("lm-roz", "lm-zab");
		polozky.style.display = "none";
	}
}

function MZ(menu_tit_id)
{
	var titulek = document.getElementById(menu_tit_id);
	titulek.style.backgroundColor = "#1155AA";
}

function MN(menu_tit_id)
{
	var titulek = document.getElementById(menu_tit_id);
	titulek.style.backgroundColor = "";
}

function MenuZavritPotomky(ram, vynechat)
{
	for (var i=0; i<ram.childNodes.length; i++)
	{
		var menu = ram.childNodes[i];
		if (menu != vynechat)
		{
			if (menu.childNodes.length == 2)
			{
				menu.childNodes[0].className = menu.childNodes[0].className.replace("lm-roz", "lm-zab");
				menu.childNodes[1].style.display = "none";
			}
		}
	}
	if (ram.className != "lm-0-pol")
	{
		MenuZavritPotomky(ram.parentNode.parentNode, ram.parentNode);
	}
}