var rollOverArr=new Array();
function setrollover(OverImgSrc,pageImageName)
{
if (! document.images)return;
if (pageImageName == null)
    pageImageName = document.images[document.images.length-1].name;
rollOverArr[pageImageName]=new Object;
rollOverArr[pageImageName].overImg = new Image;
rollOverArr[pageImageName].overImg.src=OverImgSrc;
}

function rollover(pageImageName)
{
if (! document.images)return;
if (! rollOverArr[pageImageName])return;
if (! rollOverArr[pageImageName].outImg)
    {
    rollOverArr[pageImageName].outImg = new Image;
    rollOverArr[pageImageName].outImg.src = document.images[pageImageName].src;
    }
document.images[pageImageName].src=rollOverArr[pageImageName].overImg.src;
}

function rollout(pageImageName)
{
if (! document.images)return;
if (! rollOverArr[pageImageName])return;
document.images[pageImageName].src=rollOverArr[pageImageName].outImg.src;
}

function chLang(lang) {
	var link = parent.location.href;
	var endLink = link.length;
	var i;
	var n;
	var found = 0;

	for(i = 0; i <= endLink; i++) {
		n = i + 3;
		if (link.substring(i, n) == "eng") {
			chLink = link.substring(0, i) + lang + link.substring(n, endLink);
			break;
		}
		else if (link.substring(i, n) == "chi") {

			chLink = link.substring(0, i) + lang + link.substring(n, endLink);
			break;
		}
		else if (link.substring(i, n) == "gbx") {
			chLink = link.substring(0, i) + lang + link.substring(n, endLink);
			break;
		}
	}
	parent.location.href = chLink;
}