add i18n vars

app/views/admin/ad_banners/_ad_image_update.html.erb

@@ -1,7 +1,7 @@
 <li class="span3">
 			<%= image_tag ad_image.file rescue nil%> 
 			<p>
-				<%= ad_image.display? ? '[Showing]' : '[NotShawing]' %>
+				<%= ad_image.display? ? "[#{t('admin.ad.showing')}]" : "[#{t('admin.ad.not_showing')}]" %>
 				<%= "#{ad_image.post_date ||'NeedReset'  }~#{ad_image.unpost_date || 'NeedReset'}" %>
 			</p>
 			<p>