Rails - Oct 2010 - img_submit_tag

I''m a newbie, running through a rails tutorial. I''m a bit
stuck on
using the img_submit_tag.

<% @products.each do |product| -%>
  <div class="entry">
    <%= link_to image_tag(product.image_url, :border =>0), :action =>
''add_to_cart'', :id => product %>
    <h3><%=h product.title %></h3>
    <%= product.description %>

The  <%= link_to image_tag(product.image_url, :border =>0), :action =>
''add_to_cart'', :id => using the product.image_url as a
source and I''d
like to know how I can pass the path to the img_submit_tag.
Thanks, I hope I''m not too confusing in my question

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Hi,
   Take normal form and define your controller & action there as url. 
Instade of normal submit_tag use image_submit_tag.

eg.
<% form_for :url => {:action => ''add_to_cart'', :id
=> x} do |f| %>
<%= image_submit_tag("agree.png") %>
<% end %>


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