function closeImage()
{
	document.getElementById('coverdiv').style.display = "none";
	document.getElementById('imagedisplay').style.display = "none";
}
function showThumb(thumb, page)
{
	document.getElementById('imagedisplay').style.backgroundImage = "url(/images/" + page + "/" + page + thumb + ".jpg)";
	document.getElementById('coverdiv').style.display = "block";
	document.getElementById('imagedisplay').style.display = "block";
}