var lastSubnavTimer = -1;
function showSubnav(n) {
	if (lastSubnavTimer!=-1)
		clearTimeout(lastSubnavTimer);
	hideAllSubnavs();
	if ($('subnav_'+n)) {
		$('subnav_'+n).style.display = 'block';
		$('subnav_'+n).style.top = $('mainnav').getPosition().y + 28;
		$('subnav_'+n).style.left = $('nav1link_'+n).getPosition().x;
	}
}

function hideSubnav(n) {
	if (lastSubnavTimer!=-1)
		clearTimeout(lastSubnavTimer);
	if ($('subnav_'+n)) {
		lastSubnavTimer = setTimeout('hideSubnav2('+n+')', 2000);
	}
}

function hideSubnav2(n) {
	$('subnav_'+n).style.display = 'none';
}

function hideAllSubnavs() {
	$$('.subnav').each(function(el, i) {
		el.style.display = 'none';
	});
}

function showInfo(n) {
	if ($('info_' + n)) {
		$('info_' + n).style.display = 'block';
		$('info_' + n).style.top = $('info_gfx_' + n).getPosition().y + 32;
		$('info_' + n).style.left = $('info_gfx_' + n).getPosition().x;
	}
}

function hideInfo() {
	$('info_1').style.display = 'none';
	$('info_2').style.display = 'none';
	$('info_3').style.display = 'none';
}