// image switch
function product_switch_image(image) {
	var newImage = "/_uploads/imagesource.php?image="+image+"&maxwidth=320&maxheight=320";
	var newImageFull = "/_uploads/imagesource.php?image="+image+"&maxwidth=640&maxheight=640";
	document.getElementById('mainImage').src = newImage;
	document.getElementById('currentImageView').value = newImageFull;
}

// open popup window
function openWindow(theURL,winName,features) { //v2.0
  window.open(theURL,winName,features,"width=640,height=640");
}