function swap_on()
{
	document.getElementById("grossesbild").src = bildli.src;
	document.getElementById("grossesbild").style.margin = "50px 0 0 0";
}

function swap_off()
{
	document.getElementById("bglayer").style.display="none";
	document.getElementById("bildlayer").style.display="none";
	document.getElementById("grossesbild").style.margin = "290px 0 0 0";
	document.getElementById("grossesbild").src = wipbild.src;
}
function show_pic(ar,no)
{
	var scrollPos;
	scrollPos = 100;

	var scrollPos = document.body.scrollTop;
	if (scrollPos == 0)
	{
		if (window.pageYOffset)
			scrollPos = window.pageYOffset;
		else
			scrollPos = (document.body.parentElement) ? document.body.parentElement.scrollTop : 0;
	}
	document.getElementById("bildlayer").style.top = (scrollPos)+"px";
	document.getElementById("bglayer").style.top = (scrollPos)+"px";
	document.getElementById("bildlayer").style.display="block";
	document.getElementById("bglayer").style.display="block";
	bildli.src = eval("bildlist"+ar+"["+no+"]");
}