var ns = document.layers;
var ie = document.all;
var w3c = document.documentElement;
var menOpen = false;
var timerOn = false;
var menOpen2 = false;

function get_element(name) {
    if(w3c||navigator.userAgent.indexOf("Opera") != -1) {
    return document.getElementById(name);
	}
	else if(ns) {
	return eval("document." + name);
	}
	if(ie) {
	return eval("document.all." + name);
	}
    
}

function checkTimer() {
	if (timerOn) {
		clearTimeout(timerOn);
		timerOn = false;
	}
}

function startTimer() {
	timerOn = setTimeout("zeigen();", 250);
}

/* Servicekästen */

function weg2() {
	if (menOpen2) {
		if (get_element(menOpen2)) { 
		get_element(menOpen2).style.display='none'; 
		}
		menOpen2 = false;
	}
}

function show2(welches2){
	weg2();
	if (welches2) {
		if (get_element(welches2)) {
			get_element(welches2).style.display='block'; 
		}
		menOpen2 = welches2;
	}
}

/* NABU Vor Ort Karte */

function MM_findObj(n, d) { //v4.0
  var p,i,x;  if(!d) d=document; if((p=n.indexOf("?"))>0&&parent.frames.length) {
    d=parent.frames[n.substring(p+1)].document; n=n.substring(0,p);}
  if(!(x=d[n])&&d.all) x=d.all[n]; for (i=0;!x&&i<d.forms.length;i++) x=d.forms[i][n];
  for(i=0;!x&&d.layers&&i<d.layers.length;i++) x=MM_findObj(n,d.layers[i].document);
  if(!x && document.getElementById) x=document.getElementById(n); return x;
}

function MM_showHideLayers() { //v3.0
  var i,p,v,obj,args=MM_showHideLayers.arguments;
  for (i=0; i<(args.length-2); i+=3) if ((obj=MM_findObj(args[i]))!=null) { v=args[i+2];
    if (obj.style) { obj=obj.style; v=(v=='show')?'visible':(v='hide')?'hidden':v; }
    obj.visibility=v; }
}