Paging in RESTlets

I'm using a call to nlapiSearchRecord to call a saved search that pulls a minimum set of fields for pretty much all of our item records.  I then return these records via a RESTlet to a custom application.  There are just over 20,000 records, but nlapiSearchRecord will only pull 1,000 records.  Is there any way to do paging with nlapiSearchRecord?  Would there be any way to call nlapiSearchRecord 20 times and merge the results in my RESTlet to return all 20,000 records?

Here is my basic RESTlet function:

function get_items()  {    var searchResults = nlapiSearchRecord('item', '2737', null, null);   return searchResults;  }