function showQuantity(prodID, q, boxQ){
	var boxID = 'boxes_' + prodID
	var boxQuant = (boxQ * q);
	var boxText = q + ' box' + (q == 1 ? '' : 'es') + ' (' + boxQuant + ' envelopes)';
	top.document.getElementById(boxID).innerHTML = boxText;
	return true;
}