/* switching layers on start page */

function home_layer_reisen(id)
{
	/* at first disable all layers */

	document.getElementById("home_reisen_oben_1").style.display = "none";
	document.getElementById("home_reisen_oben_1").style.visibility = "hidden";
	document.getElementById("home_reisen_unten_1").style.display = "none";
	document.getElementById("home_reisen_unten_1").style.visibility = "hidden";

	document.getElementById("home_reisen_oben_2").style.display = "none";
	document.getElementById("home_reisen_oben_2").style.visibility = "hidden";
	document.getElementById("home_reisen_unten_2").style.display = "none";
	document.getElementById("home_reisen_unten_2").style.visibility = "hidden";

	document.getElementById("home_reisen_oben_3").style.display = "none";
	document.getElementById("home_reisen_oben_3").style.visibility = "hidden";
	document.getElementById("home_reisen_unten_3").style.display = "none";
	document.getElementById("home_reisen_unten_3").style.visibility = "hidden";

	document.getElementById("home_reisen_oben_4").style.display = "none";
	document.getElementById("home_reisen_oben_4").style.visibility = "hidden";
	document.getElementById("home_reisen_unten_4").style.display = "none";
	document.getElementById("home_reisen_unten_4").style.visibility = "hidden";

	/* now enable selected layer */

	if (id == 1)
	{
		document.getElementById("home_reisen_oben_1").style.display = "block";
		document.getElementById("home_reisen_oben_1").style.visibility = "visible";
		document.getElementById("home_reisen_unten_1").style.display = "block";
		document.getElementById("home_reisen_unten_1").style.visibility = "visible";
	}

	if (id == 2)
	{
		document.getElementById("home_reisen_oben_2").style.display = "block";
		document.getElementById("home_reisen_oben_2").style.visibility = "visible";
		document.getElementById("home_reisen_unten_2").style.display = "block";
		document.getElementById("home_reisen_unten_2").style.visibility = "visible";
	}

	if (id == 3)
	{
		document.getElementById("home_reisen_oben_3").style.display = "block";
		document.getElementById("home_reisen_oben_3").style.visibility = "visible";
		document.getElementById("home_reisen_unten_3").style.display = "block";
		document.getElementById("home_reisen_unten_3").style.visibility = "visible";
	}

	if (id == 4)
	{
		document.getElementById("home_reisen_oben_4").style.display = "block";
		document.getElementById("home_reisen_oben_4").style.visibility = "visible";
		document.getElementById("home_reisen_unten_4").style.display = "block";
		document.getElementById("home_reisen_unten_4").style.visibility = "visible";
	}
}


function home_layer_themen(id)
{
	if (id == 1)
	{
		document.getElementById("home_themen_oben_2").style.display = "none";
		document.getElementById("home_themen_oben_2").style.visibility = "hidden";
		document.getElementById("home_themen_unten_2").style.display = "none";
		document.getElementById("home_themen_unten_2").style.visibility = "hidden";

		document.getElementById("home_themen_oben_1").style.display = "block";
		document.getElementById("home_themen_oben_1").style.visibility = "visible";
		document.getElementById("home_themen_unten_1").style.display = "block";
		document.getElementById("home_themen_unten_1").style.visibility = "visible";
	}
	else
	{
		document.getElementById("home_themen_oben_1").style.display = "none";
		document.getElementById("home_themen_oben_1").style.visibility = "hidden";
		document.getElementById("home_themen_unten_1").style.display = "none";
		document.getElementById("home_themen_unten_1").style.visibility = "hidden";

		document.getElementById("home_themen_oben_2").style.display = "block";
		document.getElementById("home_themen_oben_2").style.visibility = "visible";
		document.getElementById("home_themen_unten_2").style.display = "block";
		document.getElementById("home_themen_unten_2").style.visibility = "visible";
	}

}