##Controller
 def search

   unless params[:search_query].blank?
     if params[:startdate] == "" || params[:startdate].nil? && params[:interval] == "" || params[:interval].nil?
       @search = Ultrasphinx::Search.new(:query => params[:search_query],:page => params[:page] ||= 1 ,:per_page => 50, :sort_mode => 'descending', :sort_by => 'arrival')
     else
       @search = Ultrasphinx::Search.new(:query => params[:search_query], :filters => {:arrival => Time.parse(params[:start_date])..Time.parse(params[:interval]) + 1.day}, :per_page => 5000, :sort_mode => 'descending', :sort_by => 'arrival')
     end
   else
       @search = Ultrasphinx::Search.new(:query => "nothing" ,:page => params[:page],:per_page => 5000)
   end
    @search.run
    @results = @search.results

   render :update do |page|
     page[:search_results].replace_html :partial => "search_results", :locals => params[:page]
   end
  end

## View Partial

<%= link_to_remote "Next Page", :url => {:action => 'search', :controller => 'visits'}, :with => "'page=2'" %>