
<!-- Ebenen einblenden -->
function ein(id)
{
	if (document.getElementById) { //W3C-Standard
	document.getElementById(id).style.visibility= 'visible';
	document.getElementById(id).style.display= 'block';
	}
	else if (document.layers) { //Netscape 4
	document.layers[id].visibility = 'visible';
	document.layers[id].display = 'block';
	}
	else if (document.all) { // IE 4/5
	document.all[id].style.visibility = 'visible';
	document.all[id].style.display = 'block';
	}
}

function aus(id)
{
	if (document.getElementById) { //W3C-Standard
	document.getElementById(id).style.visibility= 'hidden';
	document.getElementById(id).style.display= 'none';
	}
	else if (document.layers) { //Netscape 4
	document.layers[id].visibility = 'hidden';
	document.layers[id].display = 'none';
	}
	else if (document.all) { // IE 4/5
	document.all[id].style.visibility = 'hidden';
	document.all[id].style.display = 'none';
	}
}



<!-- Rollover -->
function rollen(bildName,bildQuelle) {
	if (document.images)
	bildName.src = bildQuelle;
}