// JavaScript Document
<!-- 

var avWidth = 500;
var avHeight = 500;
var currentidx = 0;
var buffer;

function resize()
{
	document.getElementById("picTable").width = document.getElementById("mainTable").width - 10;
	document.getElementById("picTable").left = 5;
	document.getElementById("picTable").height = document.getElementById("mainTable").rows[2].height - 20;
	
	avWidth = document.getElementById("picTable").width - 10;
	document.getElementById("picTable").rows[1].height = document.getElementById("picTable").height - 10;
	avHeight = document.getElementById("picTable").rows[1].height - 30;
	
	updateImage(currentidx)
}
function iFrameDoc(iframe)
{
	var bufferDoc = null;
	if (iframe.contentDocument) 
	{
		bufferDoc = iframe.contentDocument; 
	} else if (buffer.contentWindow) {
		bufferDoc = iframe.contentWindow.document;
	} else if (buffer.document) {
		bufferDoc = iframe.document;
	}
	return bufferDoc;
}
function prev()
{
	var doc = iFrameDoc(buffer);
	if (currentidx > 0) 
	{
		currentidx = currentidx - 1;
	}
	else
	{
		currentidx = doc.images.length - 1;
	}
	updateImage(currentidx);
}
function next()
{
	var doc = iFrameDoc(buffer);
	if (currentidx < doc.images.length - 1) 
	{
		currentidx = currentidx + 1;
	}
	else
	{
		currentidx = 0;
	}
	updateImage(currentidx);
}
function updateImage(idx)
{
	if (buffer != null)
	{
		var doc = iFrameDoc(buffer);
		if (doc != null && doc.images[idx] != null) 
		{
			var w = doc.images[idx].width;
			var h = doc.images[idx].height;
			var scale = Math.min(avWidth/w,avHeight/h);
			var img = document.getElementById('myImg')
			img.height = h * scale;
			img.width = w * scale;
			img.src = doc.images[idx].src;
			return true;
		}
	}
	return false;
}

// -->