function stuecke_sichtbar(Number)
                {  
                	var Layer_Number = "layer" + Number
                	var SubNav_Style = document.getElementById(Layer_Number).style.display;
                        if ( SubNav_Style == "block" )
                        {
                        	document.getElementById(Layer_Number).style.display = "none";                
                        }
                        else
                        {
                        	document.getElementById(Layer_Number).style.display = "block";   	
                        }
                }
function bio_sichtbar(Number)
                {  
                	var Layer_Bio = "bio" + Number
                	var Layer_BioLang = "bio_lang" + Number
                	var Bio_Style = document.getElementById(Layer_BioLang).style.display;
                        if ( Bio_Style == "block" )
                        {
                        	document.getElementById(Layer_BioLang).style.display = "none";
                        	document.getElementById(Layer_Bio).style.display = "block";                
                        }
                        else
                        {
                        	document.getElementById(Layer_BioLang).style.display = "block";
                        	document.getElementById(Layer_Bio).style.display = "none";   	
                        }
                }
                
function closeAllDownloadDivs()
{
	var el;
	for ( var i = 1 ; i < 6 ; i++ )
	{
		if ( el = document.getElementById( 'Layer_ddl_' + i.toString() ) )
		el.style.display = "none";
	}
		
}

function toggleDownloadDiv(id)
{
	closeAllDownloadDivs();
	var Layer_Number = "Layer_ddl_" + id
	var SubNav_Style = document.getElementById(Layer_Number).style.display;
	if ( SubNav_Style == "block" )
	{
		document.getElementById(Layer_Number).style.display = "none";                
	}
	else
	{
		document.getElementById(Layer_Number).style.display = "block";   	
	}
}

function printpop(adress)
{
	var Fenster = window.open ( adress, "Spielplan", "width=600,height=600,left=0,top=0,dependent=yes,location=no,menubar=no,toolbar=no,scrollbars=no,status=no");
	Fenster.print();
	Fenster.close();
}
function header_switch(id)
{
	var Liste = document.getElementById("list_"+id);
	if ( Liste.className == "on" )
		Liste.className = "off";
	else
		Liste.className = "on";
}