// JavaScript Document
var layer = "";
var layerpic = "";
var layerletter = "";

function zeigeLayer(layerid) {
	verbergeLayerAll();
	
	if (layerid != ""){
		layer = document.getElementById(layerid);
		
		layer.style.visibility = "visible";
		
		layerletter = document.getElementById(layerid + "_letter");
		layerletter.className = "ueschriftHover";
	}
}
function verbergeLayer(layerid) {
	layer = document.getElementById(layerid);
	layer.style.visibility = "hidden";
	
	layerletter = document.getElementById(layerid + "_letter");
	layerletter.style.color = "#7F5E0F";
}

function verbergeLayerAll() {
	if (layer != ""){
		layer.style.visibility = "hidden";
		layerletter.className = "ueschriftNormal";
	}
}