var iThrottle = 6;
var timeoutId;

function ShowNext()
{
	var curSrc = document.getElementById("viewImg");
	var thumbdiv = document.getElementById("thumbs");
	var thumbList = thumbdiv.getElementsByTagName("img");	

	for (var i=0;i<thumbList.length;i++)
	{
		if (curSrc.src == thumbList[i].src) {
			if (i + 1 == thumbList.length) {
				curSrc.src = thumbList[0].src;
				curSrc.alt = thumbList[0].alt;
				curSrc.title = thumbList[0].title;
				break;
			}
			else {
				curSrc.src = thumbList[i + 1].src;
				curSrc.alt = thumbList[i + 1].alt;
				curSrc.title = thumbList[i + 1].title;
				break;
			}
		}
	}
	timeoutId = setTimeout('ShowNext()', 1000 * iThrottle);
}

function ShowFirst()
{
	var curSrc = document.getElementById("viewImg");
	var thumbdiv = document.getElementById("thumbs");
	var thumbList = thumbdiv.getElementsByTagName("img");
        if(thumbList.length > 0)
        {	
	curSrc.src = thumbList[0].src;
	curSrc.alt = thumbList[0].alt;
	curSrc.title = thumbList[0].title;
	timeoutId = setTimeout('ShowNext()', 1000 * iThrottle);
        }
}

function setPicture(obj)
{
	var curSrc = document.getElementById("viewImg");
	curSrc.src = obj.src;
	curSrc.alt = obj.alt;
	curSrc.title = obj.title;
	clearTimeout(timeoutId);
}