function showLayer(name)
{
	if(document.layers)
		document.layers[name].visibility="show";
	else
		document.getElementById(name).style.visibility="visible";
}

function hideLayer(name)
{
	if(document.layers)
		document.layers[name].visibility="hide";
	else
		document.getElementById(name).style.visibility="hidden";
}


function showMitglieder()
{
	showLayer('layerMitglieder');
	hideLayer('layerKontakt');
	hideLayer('layerImpressum');
}

function showKontakt()
{
	hideLayer('layerMitglieder');
	showLayer('layerKontakt');
	hideLayer('layerImpressum');
}

function showImpressum()
{
	hideLayer('layerMitglieder');
	hideLayer('layerKontakt');
	showLayer('layerImpressum');
}

function hideMenue()
{
	hideLayer('layerMitglieder');
	hideLayer('layerKontakt');
	hideLayer('layerImpressum');
}