not workinf in Files Module

[cforce]

There is no lightbox eye in the right siede of a file attachment in files Tab. When i click the attachment it is getting downloaded.

Redmine 1.2.1

This is my /redmine_lightbox/lib/hookscode/view_layouts_base_html_head_hook.rb

module RedmineLightBox
module Hooks
class ViewLayoutsBaseHtmlHeadHook < Redmine::Hook::ViewListener
def view_layouts_base_html_head(context={})
if context[:controller] && ( context[:controller].is_a?(IssuesController) ||
context[:controller].is_a?(WikiController) ||
context[:controller].is_a?(DocumentsController) ||
context[:controller].is_a?(FilesController) ||
context[:controller].is_a?(BoardsController) ||
# Hinzugefügt am 23.09.2011: Ticket #4274
context[:controller].is_a?(MessagesController))
return stylesheet_link_tag("jquery.fancybox-1.3.4.css", :plugin => "redmine_lightbox", :media => "screen") +
stylesheet_link_tag("lightbox.css", :plugin => "redmine_lightbox", :media => "screen") +
javascript_include_tag('//ajax.googleapis.com/ajax/libs/jquery/1.5.1/jquery.min.js') +
javascript_tag('jQuery.noConflict();') +
javascript_include_tag('jquery.fancybox-1.3.4.pack.js', :plugin => 'redmine_lightbox') +
javascript_include_tag('jquery.easing-1.3.pack.js', :plugin => 'redmine_lightbox') +
javascript_include_tag('lightbox.js', :plugin => 'redmine_lightbox')
else
return ''
end
end
end
end
end