Fix bug.

app/controllers/asia_databases_controller.rb

@@ -126,7 +126,9 @@ class AsiaDatabasesController < ApplicationController
 			asia_data = asia_data.page(params[:page_no]).per(OrbitHelper.page_data_count)
 		end
 		asia_data_list = []
-		if !params['keywords'].nil?
+		if params['keywords'].nil?
+			asia_data = nil
+		else
 			if for_frontend
 				asia_data_list = asia_data.collect do |asia_record|
 					{'jps' => fields_to_show.map{|field| {"value"=> get_display_field(asia_record,field)}}}
@@ -178,7 +180,7 @@ class AsiaDatabasesController < ApplicationController
 			"asia_databases" => asia_data_list,
 			"headers" => table_headers,
 			"extras" => extras,
-			"total_pages" => asia_data.total_pages,
+			"total_pages" => (asia_data ? asia_data.total_pages : 0),
 			'choice_unit' => choice_unit,
 			'choice_field' => choice_field
 		}