function an(box) 
	{
	var bild = box+"_link";
	if (document.getElementById) document.getElementById(box).style.visibility = "visible";
	document.images[bild].src=eval(bild+"_on.src");
	}
	
function aus(box) 
	{
	var bild = box+"_link";
	if (document.getElementById) document.getElementById(box).style.visibility = "hidden";
	document.images[bild].src=eval(bild+"_off.src");
	}

function change(x,y)
	{
	document.images[x].src=eval(x+"_"+y+".src");
	}
	
function news_an() 
	{
	document.getElementById("News_Inhalt").style.visibility = "visible";
	}
	
function news_aus() 
	{
	document.getElementById("News_Inhalt").style.visibility = "hidden";
	}