function update_cart_quantity (id, quantity) {
	window.location = "cart.php?func=set_quantity&id="+id+"&quantity="+quantity;
}
function billing_same_as_shipping (reverse) {
	if ($('shipping_fields').class == 'hidden') {
		$("shipping_same_link").innerHTML = "wait! my billing information is the same as my shipping information!";
		new Effect.BlindDown('shipping_fields');
		$('shipping_fields').class = 'shown';
	} else {
		var fields = Array('first_name', 'last_name', 'address', 'address2', 'city', 'state', 'zipcode');
		for (var i = fields.length - 1; i >= 0; i--){
			$("shipping_" + fields[i]).value = $F("billing_" + fields[i]);
		};
		$("shipping_same_link").innerHTML = "opps, I do need the shipping information to be different";
		new Effect.BlindUp('shipping_fields');
		$('shipping_fields').class = 'hidden';
	}
}
function show_service(id, total){
	for (var i = total; i >= 1; i--){
		if (i != id){
			Effect.BlindUp(i + '_sub');
		}
	}
	Effect.BlindDown(id + '_sub');
	return false;
}