changes

app/presenters/post_presenter.rb

@@ -1,22 +1,22 @@
 class PostPresenter < Presenter
-  def initialize(post, current_user)
+  def initialize(post)
     @post = post
-    @current_user = current_user
   end
   
   def tag_list_html
   end
   
-  def image_html(template)
-    return "" if @post.is_deleted? && !@current_user.is_janitor?
+  def image_html(template, current_user)
+    return "" if @post.is_deleted? && !current_user.is_janitor?
     
     if @post.is_flash?
       template.render(:partial => "posts/flash", :locals => {:post => @post})
     elsif @post.is_image?
       template.image_tag(
-        @post.file_path_for(@current_user),
-        :width => @post.image_width_for(@current_user),
-        :height => @post.image_height_for(@current_user),
+        @post.file_url_for(current_user),
+        :alt => @post.tag_string,
+        :width => @post.image_width_for(current_user),
+        :height => @post.image_height_for(current_user),
         "data-original-width" => @post.image_width,
         "data-original-height" => @post.image_height
       )