function changeVis(nr)
	{
	obji = document.getElementById("antwort_"+nr);
	if(obji.style.display == 'none')
		obji.style.display = 'block';
	else
		obji.style.display = 'none';
	}





function onOut(nr,lang){
	if(lang == "de") {	
	document.getElementById(nr).src = 'i/n' + nr + '.gif' ;
	} else if(lang == "en"){
	document.getElementById(nr).src = 'i/n' + nr + '.gif' ;
	}
	
}


function onIn(nr,lang){
	if(lang == "de") {	
	document.getElementById(nr).src = 'i/n' + nr + 'o.gif' ;
	} else if(lang == "en"){
	document.getElementById(nr).src = 'i/n' + nr + 'o.gif' ;
	}

	
}

function scroller()
{
	x = document.body.scrollLeft;
	y = document.body.scrollTop;
	step = 2;

	while ((x != 0) || (y != 0)) {
		scroll (x, y);
		step += (step * step / 100);
		x -= step;
		y -= step;
		if (x < 0) x = 0;
		if (y < 0) y = 0;
	} 
	scroll (0, 0);
}