Fix get_item and more link in front end

lib/orbit_app/helper/default_widget_tag_helper.rb

@@ -6,15 +6,14 @@ module DefaultWidgetTagHelper
     @request = req
     params.delete :inner
     @params = params
-
-    params_str ="?"
+    params_str = "?"
     params.each do |index,param|  
       if param.is_a?(Array) and !param.blank?
+        params_str << "&" unless params_str.eql?("?")
         params_str << param.collect{|t| "#{index}[]=#{t}"}.join("&")
         params.delete index
       end
-    end  
-    
+    end
     params_str = params_str + (params_str.eql?("?") ? params.to_param : "&#{params.to_param}" )
       content_tag :div,:class=> 'more' do 
   	 link_to I18n.t(@more_link[:label_i18n]),[eval("#{@more_link[:path_method]}"),params_str].join()