var timer_navi = 1;
var searchFocus = 0; 
var loaded;
var ns4 = (document.layers) ? true:false;
var ie4 = (document.all) ? true:false;
var ns6 = (document.getElementById && !ie4) ? true:false;

//Detected den Layernamen des Bildes
function FindElement (bildname,lay) {
	var curDoc = lay?lay.document:document; 
	var elem = curDoc[bildname];
	if (!elem) {
		for (var i=0;i<curDoc.layers.length;i++) {
			elem=FindElement (bildname,curDoc.layers[i]);
			if (elem) return elem;
		}
	}
	return elem;
}

//Bildwechsel
function bildwechsel (_i_,status) {
	var img = (ns4) ? FindElement("img"+_i_,0) : document.images["img"+_i_];
	if (arretiert != "img"+_i_  ){ 
		if (img) img.src = ImgObj["img"+_i_][status].src;
	}
}


// Generell: blendet alle im Layer-Array gespeicherten Layer aus
function subnavi_einblenden(dom){
	 dom.className ="hover";
}
function subnavi_ausblenden(dom){
	 dom.className ="";
}



// Generell: blendet alle im Layer-Array gespeicherten Layer aus
function Img_ausblenden() {
	for (i=0;i<=6;i++) {
		bildwechsel(i,0);
	}
}

function start_Timeout(i){
	if (timer_navi) window.clearTimeout(timer_navi);
	timer_navi = window.setTimeout("Ly_ausblenden(allLy)",i);
}

function clear_Timeout(){
	if (timer_navi) window.clearTimeout(timer_navi);
}

function doLoad() {
	loaded = true;
	//document.suche.words.onkeydown = sendFormOnEnter;
}



function sendFormOnEnter(Ereignis){
	if (document.all){
		var f = window.event;
		if (f.keyCode == 13) document.forms["suche"].submit();
	} else {
		if (Ereignis.which == 13) document.forms["suche"].submit();
	}
}


function MM_preloadImages() { //v3.0
var d=document; if(d.images){ if(!d.MM_p) d.MM_p=new Array();
var i,j=d.MM_p.length,a=MM_preloadImages.arguments; for(i=0; i<a.length; i++)
if (a[i].indexOf("#")!=0){ d.MM_p[j]=new Image; d.MM_p[j++].src=a[i];}}
}

function MM_swapImgRestore() { //v3.0
var i,x,a=document.MM_sr; for(i=0;a&&i<a.length&&(x=a[i])&&x.oSrc;i++) x.src=x.oSrc;
}

function MM_findObj(n, d) { //v4.01
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 && d.getElementById) x=d.getElementById(n); return x;
}

function MM_swapImage() { //v3.0
var i,j=0,x,a=MM_swapImage.arguments; document.MM_sr=new Array; for(i=0;i<(a.length-2);i+=3)
if ((x=MM_findObj(a[i]))!=null){document.MM_sr[j++]=x; if(!x.oSrc) x.oSrc=x.src; x.src=a[i+2];}
}



var allLy = new Array("subnav_ly0","subnav_ly1","subnav_ly2","subnav_ly3","subnav_ly4","subnav_ly5");


function medianrwEngine()		{
	if ((typeof window.sidebar == "object") && (typeof window.sidebar.addSearchEngine == "function")) {
	 window.sidebar.addSearchEngine("http://www.media.nrw.de/standards/medianrw.src","http://www.media.nrw.de/standards/i/medianrw.png","media|NRW","media|NRW ist die Informationsplattform der Landesregierung über den Medienstandort Nordrhein-Westfalen" );
	} 
	else 	{
	 alert("Sie benötigenh Netscape 6 oder Mozilla um das Such Plug-In zu installieren");
	}
}


function show(element){
	element.className += "hover";
}
function hide(element){
	element.className = element.className = "";
}

function blurLink(){}

/*für headerwechsel auf startseite*/
var dom = (document.getElementById) ? 1 : 0;
var nn4 = (document.layers) ? 1 : 0;

function toggleDiv()
{
 var myDiv = "titelLeiste_overlay";
 if(dom)
 {
  var vis = document.getElementById(myDiv).style.visibility;
  (vis == "hidden") ? showDiv(myDiv) : hideDiv(myDiv);
 }
 if(nn4)
 {
  var vis = document.layers[myDiv].visibility;
  (vis == "hide") ? showDiv(myDiv) : hideDiv(myDiv);
 }
}

function hideDiv(myDiv) { (dom) ? document.getElementById(myDiv).style.visibility = "hidden" : document.layers[myDiv].visibility = "hide"; }
function showDiv(myDiv) { (dom) ? document.getElementById(myDiv).style.visibility = "visible" : document.layers[myDiv].visibility = "show"; }