if (document.layers)  {
     ns = 1; ie = 0; 
} else {
     ns = 0; ie = 1;
     }
              
var aktiv=0;
var i = 1;
var aktuell = "info";

function zeigeEbeneNr(layer_nr) {
   aktiv=1;
   verbergen(eval('"' + aktuell + i +'"'));   
   zeigen(eval('"' + aktuell + layer_nr +'"'));    
   i = layer_nr; 
}

function zeigen(name) {
if (ns && parent.frames.content.document.layers[''+name]) {     
    parent.frames.content.document.layers[''+name].visibility = "show";              
    }
    else{
       if(ie && parent.frames.content.document.all[''+name])
        {
         parent.frames.content.document.all[''+name].style.visibility = "visible";          
        }
   }
}


function verbergen(name) {
if (ns && parent.frames.content.document.layers[''+name]){
    parent.frames.content.document.layers[''+name].visibility = "hide"
    }
    else {
        if(ie && parent.frames.content.document.all[''+name])
          {
          parent.frames.content.document.all[''+name].style.visibility = "hidden"        
        }
    }
}



function show_layer(layer_name) {
   if(document.layers) {
      parent.frames.content.document.layers[layer_name].visibility="show";               				
   } else {
      parent.frames.content.document.all[layer_name].style.visibility="visible";
   }
}
   			

   function hide_layer(layer_name){
        			if(document.layers)               					                                    parent.frames.content.document.layers[layer_name].visibility="hide";
       				else                				                                parent.frames.content.document.all[layer_name].style.visibility="hidden";
  	}
   function MM_openBrWindow(theURL,winName,features) { 
         window.open(theURL,winName,features);
   }
   function verz_schliessen()
   {
	aktiv=0;
	setTimeout('alle_schliessen()',20);
	
    }   

function alle_schliessen() {
	if (aktiv == 0) 
	{
	
		verbergen('info1');verbergen('info2');verbergen('info3');verbergen('info4');verbergen('info5');verbergen('info6');
verbergen('info7');verbergen('info8');verbergen('info9');verbergen('info10');verbergen('info11');
	}
        }