var submenu = false;

function findPosX(obj)
{
	var curleft = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curleft += obj.offsetLeft
			obj = obj.offsetParent;
		}
	}
	else if (obj.x)
		curleft += obj.x;
	return curleft;
}

function findPosY(obj)
{
	var curtop = 0;
	if (obj.offsetParent)
	{
		while (obj.offsetParent)
		{
			curtop += obj.offsetTop
			obj = obj.offsetParent;
		}
	}
	else if (obj.y)
		curtop += obj.y;
	return curtop;
}

function show_submenu()
{
	var pole = document.getElementById('submenu');
	var pole2 = document.getElementById('menu');

	var new_left = findPosX(pole2) + 200;
	var new_top = findPosY(pole2) + 52;

	pole.style.left = new_left + 'px';
	pole.style.top = new_top + 'px';

	pole.style.visibility = 'visible';
	submenu = true;
}

function hide_submenu()
{
	if(submenu)
	{
		submenu = false;
		setTimeout('really_hide_submenu()', 250);
	}	
}

function really_hide_submenu()
{
	if(!submenu)
	{
		var pole = document.getElementById('submenu');
		pole.style.visibility = 'hidden';
	}
}