Rails - Aug 2009 - will_paginate with ajax

I tried to delete from a datatable that I represent with will_paginate
and ajax. In the view there are something like that:

<tbody>
    <% @items.each do |i| %>
    <tr class="<%= cycle("even","odd")
%>">
      <td><%= i.name %></td>
      <td><%= i.quantity %></td>
      <td><%= i.price %></td>
      <td><%= link_to ''Destroy'', :method =>
:delete %></td>
    </tr>
    <% end %>
</tbody>

In the controller I have this:

  def destroy(a)
    @Item = Item.find(:id)
    @Item.destroy
  end

And the web don''t have error but don''t run I have to do with
ajax or
something like that??
Thank you very much!!
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<%= link_to ''Destroy'',:confirm => ''Are you
sure?'',:action =>
''destroycat'',:id => p.id, :method => :delete %>

and controller like this

def destroycat
  @pro_categorie = ProCategorie.find(params[:id])
    @pro_categorie.destroy
    respond_to do |format|
      format.html { redirect_to(admins_url) }
      format.xml  { head :ok }
    end
  end
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