// JavaScript Document


var active = '';
var zn = 0;

function menu(_id)
	{
	id = (_id) ? _id : 'menur' ;
		clearTimeout(zn);
		if (active != '')
		document.getElementById(active).style.visibility="hidden";
		document.getElementById(id).style.visibility="visible";
		active = id;
	}


function koniec(_id)
	{
	id = (_id) ? _id : 'menur' ;
		clearTimeout(zn);
		zn = setTimeout("ukryj(id);", 500);
	}
	
function ukryj(_id)
	{
	if (kryj==0)
{
	id = (_id) ? _id : 'menur' ;
		document.getElementById(id).style.visibility="hidden";
		active = '';
	}
}