// JavaScript Document

/* ---------------------------------------------------------------------------------
Dateiname:	navigation.js
Inhalt:		Funktionssammlung fuer die Symbol-Navigation "
-----------------------------------------------------------------------------------*/

//------------------------ Browser-Check -----------------------------------------------

var mb = (document.getElementById) ? 1:0;
var ns = (document.layers) ? 1:0; 
var ie = (document.all) ? 1:0;

//------------------------ ab hier Navigations-Regelung --------------------------------





//----------------------- Allgemeine Variablen -----------------------------------------

var rollEbene;	//Speichert aktuelle Roll-Over Ebene
var aktEbene;	//Speichert aktuell AKTIVE Ebene



//------ alle Ebenen verstecken
/*
function hide(){
	for (m=0; m<=5; m++){
		id = 'ebene' + String(m);		
	if (ie){
		document.all[id].style.visibility = "hidden";}
	else {
		document.layers[id].visibility = "hide";}
	}
}
*/

//------ MouseOver

function roll(welcheEbene,bildname){
//--------------------------Bild Tauschen -------------
	if (document.images){ 

	orginal = document.images[bildname].src;
	//alert(orginal);
		  orginallaenge=orginal.length;
		  kurzlaenge=orginallaenge-5;
		  ohneendung=orginal.slice(0,kurzlaenge);
		
			if(orginal.indexOf("_a.") == -1){
			  tauschbild = ohneendung+"o.gif";
			  }
			else{
		   tauschbild = ohneendung+"a.gif";
		   //alert(tauschbild);
		  }
		  document.images[bildname].src=tauschbild;
	}
	
	
}
/*
//------------------------ Browser-Check -----------------------------------------------

var mb = (document.getElementById) ? 1:0;
var ns = (document.layers) ? 1:0; 
var ie = (document.all) ? 1:0;

//------------------------ ab hier Navigations-Regelung --------------------------------	
	//alert(welcheEbene,rollebene);
	if (welcheEbene != rollEbene){
		
		if (mb == 1){
		for (m=1; m<=1; m ++){
			id = 'ebene' + String(m);
			idakt = 'ebene' + String(m) + 'a';
			//alert (idakt);
		
			document.getElementById(id).style.visibility = "hidden";
			}
			
			document.getElementById(idakt).style.visibility = "hidden";
		}
			
}	
		if (mb){
			document.getElementById(welcheEbene).style.visibility = "visible";									
			
			rollEbene = welcheEbene;}
		//else if (ie){
		//	document.all[welcheEbene].style.visibility = "visible";						
			//rollEbene = welcheEbene;}
		
	}



	
//------ MouseOut
*/

function out(welcheOutEbene,bildname){
	 if (document.images){ 
			 
			  orginal = document.images[bildname].src;
			  orginallaenge=orginal.length;
			  kurzlaenge=orginallaenge-5;
			  ohneendung=orginal.slice(0,kurzlaenge);
			
			if(orginal.indexOf("_a.") == -1){
			  tauschbild = ohneendung+"p.gif";
			  }
			else{
			   tauschbild = ohneendung+"a.gif";
			  }
			  document.images[bildname].src=tauschbild;
	 }
}
//------------------------ Browser-Check -----------------------------------------------
/*
var mb = (document.getElementById) ? 1:0;
var ns = (document.layers) ? 1:0; 
var ie = (document.all) ? 1:0;

//------------------------ ab hier Navigations-Regelung --------------------------------
	
		for (m=1; m<=1; m ++){
		id = 'ebene' + String(m);
		idakt = 'ebene' + String(m) + 'a';
		if (mb == 1){
		
			document.getElementById(id).style.visibility = "hidden";
			document.getElementById(idakt).style.visibility = "hidden";
			}
	}
		
		//
			if (welcheOutEbene != id) {
						
			
			document.all[idakt].style.visibility = "hidden";}
			//////
		
	 		

		if (mb){
		alert(idakt);
			document.getElementById(idakt).style.visibility = "visible";
			}
		
		rollEbene = 'ebene0'
		//alert("aktebne out: "+aktEbene);
}
		
//------- Mouse-Click Funktionen
*/
/*
function hit(welcheEbene){

//------------------------ Browser-Check -----------------------------------------------

var mb = (document.getElementById) ? 1:0;
var ns = (document.layers) ? 1:0; 
var ie = (document.all) ? 1:0;

//------------------------ ab hier Navigations-Regelung --------------------------------

		aktiv = welcheEbene + 'a'
		
		if (mb == 1){
		for (m=1; m<=1; m ++){
			id = 'ebene' + String(m);
			idakt = 'ebene' + String(m) + 'a';
			document.getElementById(id).style.visibility = "hidden";
			document.getElementById(idakt).style.visibility = "hidden";}
			
		document.getElementById(aktiv).style.visibility = "visible";			
		aktEbene = aktiv;
			}
		
			
	 	
	
		if (mb==1){			
			}
		
}
*/
/*

function neutral(){

var mb = (document.getElementById) ? 1:0;
var ns = (document.layers) ? 1:0; 
var ie = (document.all) ? 1:0;

	
	for (m=1; m<=1; m ++){
	id = 'ebene' + String(m);
	idakt = 'ebene' + String(m) + 'a';
	if (mb == 1){
		document.getElementById(id).style.visibility = "hidden";
		document.getElementById(idakt).style.visibility = "hidden";}
	}		
	 	
	
	if (mb){
		aktEbene = 'ebene0';
		rollEbene = 'ebene0';
		document.getElementById('ebene0').style.visibility = "visible";
		}
	
	aktiv='ebene0';
	//alert("aktebne: "+aktEbene);
}

*/