function showSubNav(navTopic)
{
	document.getElementById(navTopic).style.display = "block";
}

function hideSubNav()
{
	document.getElementById('neugebrauchtwagen').style.display = "none";
	document.getElementById('werkstatt').style.display = "none";
	document.getElementById('lagerersatzteile').style.display = "none";
	document.getElementById('uebercoester').style.display = "none";
}

var ntopen=0,ntout=0,ntover=0;

function ntaus()
{
	ntout++;
	if(ntout==ntover&&ntopen==1){
		document.getElementById('neugebrauchtwagen').style.display = "block";
		document.getElementById('werkstatt').style.display = "none";
		document.getElementById('lagerersatzteile').style.display = "none";
		document.getElementById('uebercoester').style.display = "none";
		ntopen=0;
	}
}