preview by default widget

vendor/built_in_modules/announcement/init.rb

@@ -33,7 +33,7 @@ module Announcement
         enable ["typeA","typeC"]
         image :image
         field :postdate
-        link_field :title,{:method => 'panel_announcement_front_end_bulletin_path',:args=>:self}
+        link_field :title,{:method => 'panel_announcement_front_end_bulletin_path',:args=>:self,:preview=>true}
         link_field :bulletin_category_with_title,{:method => 'panel_announcement_front_end_bulletins_path',:args=>{:category_id => [:bulletin_category,:id]}}
         link_to_more 'panel_announcement_front_end_bulletins_path',:title_i18n=> 'more_plus'
       end