So I am trying to submit a comment to an form that will display on the page. I want to be able to do this in ajax or prototype.

This is the html for the form.

Code:
<p id="notice"><%= notice %></p>

<p>
  <b>Title:</b>
  <%= @image.title %>
</p>

<p>
  <%= image_tag @image.filename %>
</p>

<p>
  <b>Likes:</b>
  <span id="image_<%=@image.id%>_likes_count"><%= @image.likes %></span>
</p>

<form>
        <label>Name:</label>
            <input type="text" name="name" />
        <label>Comment:</label>
            <input type="text" name="comment"  />
            <input type="submit" value="Submit" name="submit" class="post" />
</form>


<div id="comments">

  <h2>Comments displayed here</h2>

<%= render :partial => "shared/comment", :collection => @image.comments%>

</div
 

<%= link_to 'Like', like_image_path(@image), :method => :post %> |
<%= link_to 'Edit', edit_image_path(@image) %> |
<%= link_to 'Back', images_path %>
This is the db for create_commentables

Code:
class CreateCommentables < ActiveRecord::Migration
  def self.up
    create_table :commentables do |t|
      t.integer :commentator_id
      t.integer :resource_id
      t.string :resource_type
      t.integer :commentator_id
      t.string :commentator_type
      t.text :comment

      t.timestamps
    end
  end

  def self.down
    drop_table :commentables
  end
end