function d(elm){
	return document.getElementById(elm);
}


function goURL(url){
	document.location.href = url;
}

function addToCart(item_id,amount) {
	d('addToCart_item_id').value=item_id;
	d('addToCart_amount').value=d(amount).value;
	d('addToCartForm').submit();
}

function removeFromCart(item_id) {
	goURL('action.php?action=remove&item_id=' + item_id);
}