Rails - Mar 2006 - 2 ajax related questions

Hi!

I''ve got list of project on the main page and some content. If user 
clicks on one of the project i use ajax to update div with content with 
project data. I''m displaying only one project at a time.

In index action i just collect all projects:
@projects = Project.find(:all, :order => "date DESC")

In show action i render project partial:
render :partial => "project", :locals => {:project => 
Project.find(params[:id])} if params[:id]


How to create "next/previous project" links using ajax? I''ve
looked at
"How to paginate with ajax", but i can''t make it work.

Is it possible to somehow wait for images to be loaded and show updated 
element afterwards? Now :complete event triggers, when all html data is 
received, but browser still downloads images from the server.

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I tried to use paginate in my controller:

@project_pages, @project = paginate :projects, :conditions => ["id =
?",
params[:id]], :per_page => 1
render :partial => "project", :locals => {:project =>
@project.first,
:project_pages => @project_pages}


But links in the partial are not displayed:

<%= link_to "Previous page", { :page =>
@project_pages.current.previous
} if @project_pages.current.previous %>
<%= link_to "Next page", { :page => @project_pages.current.next
} if
@project_pages.current.next %>


If :conditions in paginate method is used not for finding current 
element, but for filtering elements from the set to be used for 
paginator, then it would explain why previous/next links are not 
displayed.

But if it''s true, then how get specified (by params[:id]) element and 
use paginate to display previous/next links to proper elements?

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