function show_menue(id)
{
	e = getElement(id);
	e.style.visibility = "visible";
}

function hide_menue(id)
{
	e = getElement(id);
	e.style.visibility = "hidden";  	
}

function getElement(id)
{
	if (document.getElementById)
	{
		return document.getElementById(id);
	}
	else if (document.all)
	{
		return document.all(id);
	}
	else if (document.layers)
	{
		return document.layers(id);
	}
}