I'm looking to implement a custom search feature, I need a text field and a drop down which people can select 'old' or 'new' and probably return items from a single dataobject which will have either an 'old' or 'new' value in a db column 'type', or the other option is to return all results that are children of either the old or new category pages.
Can anybody point me in the right direction for implementing this?