// JavaScript Document
function showLayer (layer_name) {

	hideAll ();
	if (document.getElementById(layer_name+'_call')){
document.getElementById(layer_name+'_call').style.backgroundColor = "#efefef";}
if (document.getElementById(layer_name)){
	document.getElementById(layer_name).style.visibility = "visible";
}

	}
 
function hideLayer (layer_name) {
if (document.getElementById(layer_name+'_call')){
document.getElementById(layer_name+'_call').style.backgroundColor = "#ffffff";}

if (document.getElementById(layer_name)){
	document.getElementById(layer_name).style.visibility = "hidden";
}
	}