var DHTML = 0, DOM = 0, MS = 0, NS = 0, OP = 0;

function DHTML_init() {

 if (window.opera) {
     OP = 1;
 }
 if(document.getElementById) {
   DHTML = 1;
   DOM = 1;
 }
 if(document.all && !OP) {
   DHTML = 1;
   MS = 1;
 }
if(document.layers && !OP) {
   DHTML = 1;
   NS = 1;
 }
}

var myIndex;
function MM_ReplacePage(pIndex)
{
DHTML_init();
myIndex=pIndex; 
 var targetPage;
	switch(pIndex)
	{
	  case 1: targetPage="../php/sei01_bae.php"; break;
	  case 2: targetPage="../php/sei05_inf.php";break;
	  case 3: targetPage="../php/sei11_lan.php";break;
	  case 4: targetPage="../php/sei18_bfs.php";break;
	  case 5: targetPage="../php/sei24_bil.php";break;	
	  default: targetPage="../php/start.php"; break;
	}
	if(DOM)
	{
	 parent.frames["mainFrame"].location.href=targetPage;
	}
	else if(NS)
	{
	 parent.frames["mainFrame"].location.href=targetPage;
	}
	else if(MS)
	{
	 parent.mainFrame.location.href=targetPage;
	}
	else return;
	setTimeout("MM_PopLayer(myIndex)",200);
}

function MM_PopLayer(x){
DHTML_init();
if(DOM)  //NS 5++; IE new Versions
  {
	for(menus=1; parent.frames["mainFrame"].document.getElementById('mnu'+menus+'1');menus++)   //alle Menüs betrachten...
		{
			if(menus==x) //dieses Menü sichtbar machen
			{
						offset=35*(menus-1)+20;
						doc=parent.frames["mainFrame"].document;
						doc.getElementById('mnu'+menus+1).style.top = doc.body.scrollTop + offset;
						doc.getElementById('mnu'+menus+1).style.visibility = 'visible';
						doc.getElementById('mnu'+menus+2).style.top = doc.body.scrollTop + offset+7;
						doc.getElementById('mnu'+menus+2).style.visibility = 'visible';
						doc.getElementById('mnuTable').style.top = doc.body.scrollTop;
			}
			else //andere Menüs unsichtbar machen
			{
				for (y=1;parent.frames["mainFrame"].document.getElementById('mnu'+menus+y);y++)
					parent.frames["mainFrame"].document.getElementById('mnu'+menus+y).style.visibility = 'hidden';
			}
		}
		return;
  } 	
  if(MS) //IE old
  {
	       //alert("PopLayer IE");    
		for(menus=1; parent.mainFrame.document.all['mnu'+menus+'1'];menus++)   //alle Menüs betrachten...
		{
			//top.topFrame.document.write(''+menus); //debugging output
			if(menus==x) //dieses Menü sichtbar machen
			{
				offset=35*(menus-1)+20;
				doc=parent.mainFrame.document;
				doc.all['mnu'+menus+1].style.top = doc.body.scrollTop + offset;
				doc.all['mnu'+menus+1].style.visibility = 'visible';
				doc.all['mnu'+menus+2].style.top = doc.body.scrollTop + offset+7;
				doc.all['mnu'+menus+2].style.visibility = 'visible';
				doc.all['mnuTable'].style.top = doc.body.scrollTop;
			}
			else //andere Menüs unsichtbar machen
			{
				for (y=1;parent.mainFrame.document.all['mnu'+menus+y];y++)
					parent.mainFrame.document.all['mnu'+menus+y].style.visibility = 'hidden';
			}
		}
		return;
  } 
 
 	if(NS) //NS 4
  {
      //alert("NS");
	for(menus=1; parent.frames["mainFrame"].document.layers['mnu'+menus+'1'];menus++)   //alle Menüs betrachten...
		{

			if(menus==x) //dieses Menü sichtbar machen
			{
						offset=35*(menus-1)+20;
						doc=parent.frames["mainFrame"].document;
						doc.layers['mnu'+menus+1].top = parent.frames["mainFrame"].pageYOffset + offset;
						doc.layers['mnu'+menus+1].visibility = 'show';
						doc.layers['mnu'+menus+2].top = parent.frames["mainFrame"].pageYOffset + offset+7;
						doc.layers['mnu'+menus+2].visibility = 'show';	
						doc.layers['mnuTable'].top = parent.frames["mainFrame"].pageYOffset;			
}
			else //andere Menüs unsichtbar machen
			{
				for (y=1;parent.frames["mainFrame"].document.layers['mnu'+menus+y];y++)
					parent.frames["mainFrame"].document.layers['mnu'+menus+y].visibility = 'hide';
			}
		}
		return;
	
 	}
}

//Variable zum Testen, ob "blauer Button" weg muß, oder noch nicht
showMenu=true;
function MM_CheckVisible(menu) {
DHTML_init();
if(DOM)  //NS 5++; IE new Versions
  {
	  if(document.getElementById('mnu'+menu+'1').style.visibility=="visible")
		showMenu=true;
	   return;
  }
     	
  if(MS) //IE old
  {
	if(document.all['mnu'+menu+'1'].style.visibility=="visible")
		showMenu=true;
	return;
  }
  if(NS) //NS 4
  {
	 if	(document.layers['mnu'+menu+'1'].visibility=="show")
		showMenu=true;
	 return;
  }
}

function MM_HideAll(again){
	if(again==1)
	{
		showMenu=false;
		//warte 100 ms; in der Zwischenzeit wird showMenu verändert, wenn zu einem "Schriftlayer" gewechselt wurde 
		setTimeout("MM_HideAll(0)",100);
	}
	else
	if(showMenu==false)
	  MM_PopLayer(0); //Es gibt keinen Layer 0; darum wird alles ausgeblendet
}

//für Intro

var MM_p;
var index=0;

function MM_StartPresentation()
{
	DHTML_init();
	MM_preloadImages('images/u_bi01.gif','images/u_bi02.gif','images/u_bi03.gif','images/u_bi04.gif','images/u_bi05.gif','images/u_bi06.gif','images/u_bi07.gif','images/u_bi08.gif','images/u_bi09.gif','images/u_bi10.gif','images/u_bi11.gif','images/u_bi12.gif','images/u_bi13.gif','images/u_bi14.gif','images/u_bi15.gif','images/u_bi16.gif','images/u_bi17.gif','images/u_bi18.gif','images/u_bi19.gif','images/u_bi20.gif','images/u_bi21.gif','images/u_bi22.gif','images/u_bi23.gif','images/u_bi24.gif','images/u_bi25.gif','images/u_bi26.gif','images/u_bi27.gif','images/u_bi28.gif','images/u_bi29.gif','images/u_bi30.gif','images/u_bi31.gif','images/u_bi32.gif','images/u_bi33.gif','images/u_bi34.gif','images/u_bi35.gif','images/u_bi36.gif','images/u_bi37.gif','images/u_bi38.gif','images/u_bi39.gif','images/u_bi40.gif','images/u_bi41.gif','images/u_bi42.gif','images/u_bi43.gif','images/u_bi44.gif','images/u_bi45.gif','images/u_bi46.gif','images/u_bi47.gif','images/u_bi48.gif','images/u_bi49.gif');
	MM_Present();
	
}
var indexB=0;
function MM_Present()
{
  	if(index)
	{
		if(DOM)
  			document.getElementById("Layer"+index).style.visibility="hidden";
		else if (NS)
			 document.layers["Layer"+index].visibility="hide";
		else if(MS)
			document.all["Layer"+index].style.visibility="hidden"; 
   		else return;
	}
	if(DOM)
		document.getElementById("Layer"+ ++index).style.visibility="visible";
	else if(NS)
		document.layers["Layer"+ ++index].visibility="show";
	else if(MS)
		document.all["Layer"+ ++index].style.visibility="visible";
	
	if(index==13 || index ==25 || index==37 ||index==49)
	{
		if(DOM)
		{
			document.getElementById("Layer5"+indexB++).style.visibility="hidden";
			document.getElementById("Layer5"+ indexB).style.visibility="visible";			
		}
	 	else if(NS)
		{
	 		document.layers["Layer5"+indexB++].visibility="hide";
			document.layers["Layer5"+ indexB].visibility="show";			
		}
		else if(MS)
		{
  			document.all["Layer5"+indexB++].style.visibility="hidden";
			document.all["Layer5"+ indexB].style.visibility="visible";			
		}
	}
	if(index<MM_p.length)
		setTimeout("MM_Present()",400); //ms pause
}

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