function showDetail(id) {
	document.getElementById('placeholder').style.display = "none";
	elt = document.getElementById('productDetail_' + id);
	elt.style.display = "block";
}

function hideDetail(id) {
	elt = document.getElementById('productDetail_' + id);
	elt.style.display = "none";
	document.getElementById('placeholder').style.display = "block";
}