// ------- Fenster auf ------------------------------------------
function fensterauf(URL)
				   {
                   NF=window.open(URL,"Fenster","width=300,height=450, screenX=0, sreenY=0, directories=no, resizable=false,scrollbars=1, menubar=false");
                   NF.focus;}

function fensterauf1(URL)
                   {
                   NF=window.open(URL,"Fenster1","width=560,height=460, screenX=0, sreenY=0, directories=no, resizable=false,scrollbars=no, menubar=false");
                   NF.focus; }

function fensterauf2(URL)
                   {
                   NF=window.open(URL,"Fenster2","width=330,height=200, screenX=0, sreenY=0, directories=no, resizable=false,scrollbars=no, menubar=false");
                   NF.focus; }
				   
function fensterauf4(URL)
                   {
                   NF=window.open(URL,"Fenster4","width=450,height=500, screenX=0, sreenY=0, directories=no, resizable=false,scrollbars=1, menubar=false");
                   NF.focus; }

function bildfensterauf(datei,br,ho)
{
var mbreite=br;
var mhoehe=ho;
var Fenstereigenschaften;
var x;
var y;
var dateiname=datei;
Fenstereigenschaften="screenX=0, sreenY=0, resizable,width="+mbreite+",height="+mhoehe+",scrollbars=false,menuebar=false";
LeeresFenster=window.open(datei,"Bildfenster",Fenstereigenschaften);
x=LeeresFenster.screen.availWidth-mbreite;
y=LeeresFenster.screen.availHeight-mhoehe;
}

// ---Steuerung der Anzeige Spezialgebiete ------------

var ns = document.layers;
var ie = document.all;
var w3c = document.documentElement;
var menOpen = false;
var timerOn = 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("show();", 1000);
}

function weg() {
	if (menOpen) {
 		checkTimer();
		if ((ns)&&(document.layers[menOpen])) {
			document.layers[menOpen].visibility = "hide";
		  }
		if ((!ns)&&(get_element(menOpen))) { 
		get_element(menOpen).style.visibility = "hidden";
		}
		menOpen = false;
	}
}

	function show(welches){
	weg();
	if (welches) {
		if ((ns)&&(document.layers[welches])) {
			document.layers[welches].visibility = "show";
		}
		if ((!ns)&&(get_element(welches))) {
			get_element(welches).style.visibility = "visible";
		}
		if (get_element(welches)) {
			get_element(welches).onmouseover = checkTimer;
			//get_element(welches).onmouseout = startTimer;
		}
		menOpen = welches;
	}
}