function backHouse(frm) {
	if(!frm) frm = document.getElementById('houseForm');
	new Ajax.Updater('houseAjax', 'house_update.php?option=back', {
		asynchronous:true,
		evalScripts:true,
		parameters: Form.serialize(frm)
	});

	return false;
}

function forwardHouse(frm) {
	if(!frm) frm = document.getElementById('houseForm');

	new Ajax.Updater('houseAjax', 'house_update.php?option=forward', {
		asynchronous:true,
		evalScripts:true,
		parameters: Form.serialize(frm)
	});
	return false;
}