var nW,nH,oH,oW;
function zoomToggle(iWideSmall,iHighSmall,iWideLarge,iHighLarge,whichImage){
oW=whichImage.style.width;oH=whichImage.style.height;
if((oW==iWideLarge)||(oH==iHighLarge)){
nW=iWideSmall;nH=iHighSmall;}else{
nW=iWideLarge;nH=iHighLarge;}
whichImage.style.width=nW;whichImage.style.height=nH;
}
function changeImage()
{
	var list = document.getElementById('optionlist');
	document.mainimage.src = list.options[list.selectedIndex].value;
}

function prevImage()
{
	var list = document.getElementById('optionlist');
	if(list.selectedIndex == 0)
	{
		list.selectedIndex = list.options.length-1;
	}
	else
	{
		list.selectedIndex--;
	}
	changeImage();
}

function nextImage()
{
	var list = document.getElementById('optionlist');
	if(list.selectedIndex == list.options.length-1)
	{
		list.selectedIndex = 0;
	}
	else
	{
		list.selectedIndex++;
	}
	changeImage();
}
function qq(a) {
var vis
IE = (document.all)
NC = (document.layers)
Op = (document.getElementById)
for (var i=1; i<8; i++){
if(IE) vis = document.all["r"+i]
if(NC) vis = document.layers["r"+i]
if(Op) vis = document.getElementById("r"+i)
if (a!=i){vis.style.display = "none"}
else {vis.style.display = "inline"}
}
}