/* Browserabfrage: Layer-Object bekannt? */
if (document.layers)
      {ns = 1; ie = 0;}
else  {ns = 0; ie = 1;}

/* Funktion Dokument initialisieren - nicht notwendig */ 
function init() {if (ns) layer = document.Layer1;
                 if (ie) layer = Layer1.style;
				 }



// funktionen fuer die layer-funktionen
activ_layer="";
last_action="";

// mouseover -> openMenu
function openMenu(layerx)
{ 
  activ_layer=layerx;
  
  // displayLayer
  displayLayer(layerx+"on");
  
  hideAllMenu(layerx);
}


// mouse out -> closeMenu
function menuOut(layerx)
{
   hideLayer(layerx+"on");
}

// mouse out
function menuIn(layerx,y)
{
 
  displayLayer(layerx+"on");
}



// hide all layer
allMenu=new Array("nav1", "nav2", "nav3", "nav4"); 

allMenuStatus="";
allMenuFlag=false;

allin0=new Array("","","","");

function hideAllMenu(layerxx)
{
  for (i=0;i<allMenu.length;++i)
   if (layerxx!=allMenu[i])
   hideLayer(allMenu[i]+"on");

}


// layerfunctions
        
function Is() 
{ 
	
	var agent = navigator.userAgent.toLowerCase();  
	
	this.major = parseInt(navigator.appVersion);  
	this.minor = parseFloat(navigator.appVersion);  
	
	this.ns = ((agent.indexOf('mozilla')!=-1) && (agent.indexOf('spoofer')==-1) && (agent.indexOf('compatible') == -1) );  
	this.ns2 = (this.ns && (this.major == 2)); 
	this.ns3 = (this.ns && (this.major == 3));  
	this.ns4b = (this.ns && (this.minor < 4.04));  
	this.ns4 = (this.ns && (this.major >= 4)); 
	this.ns6 = (this.ns && (this.major >= 6)); 
	
	this.ie = (agent.indexOf('msie') != -1);  
	this.ie3 = (this.ie && (this.major == 2));  
	this.ie4 = (this.ie && (this.major >= 4));  
	this.op3 = (agent.indexOf('opera') != -1); 
	this.ver5m=(this.major >= 5); 
	
}
        var is = new Is();
   
        function displayLayer(lname) { 
        	vis='visible';   estr='';  
       	if (!is.ver5m) {
        		 if (is.ie) estr='document.all["'+lname+'"].style.visibility="'+vis+'"';
        		 if (is.ns6) estr=estr='document.layers.'+lname+'.visibility="'+vis+'"';   
        		 eval(estr); 
        		 }  
        	else document.getElementById(lname).style.visibility=vis;
        	}
        
        
        function hideLayer(lname) { 
        	vis='hidden';   estr='';   
        	if (!is.ver5m) { 
        		if (is.ie) estr='document.all["'+lname+'"].style.visibility="'+vis+'"';   
        		if (is.ns6) estr=estr='document.layers.'+lname+'.visibility="'+vis+'"';      
        		eval(estr); 
        		}  
        	else document.getElementById(lname).style.visibility=vis; 
        	}
        
        

if (((navigator.appName == "Netscape") && (parseInt(navigator.appVersion.substring(0,1)) >=3))
      || ((navigator.appName == "Microsoft Internet  Explorer")&&(parseInt(navigator.appVersion.substring(0,1)) >=4)))
      {var version=true}


// nop = do nothing = no operation
function nop()
{

}