function montre(idmenu)
{
	with (document)
	{
		if (getElementById)
			getElementById(idmenu).style.display = 'block';
		else if (all)
			all[idmenu].style.display = 'block';
		else
			layers[idmenu].display = 'block';
	}
}

function cache(idmenu)
{
	with (document)
	{
		if (getElementById)
			getElementById(idmenu).style.display = 'none';
		else if (all)
			all[idmenu].style.display = 'none';
		else
			layers[idmenu].display = 'none';
	}
}