implementing password confirmation

Hi,

I'm using the latest version of RoR. I'm having a problem with
passwords and password confirmations. I have a db table and
corresponding model -- customer with a password field (but no password
confirmation field in the table). Here is the simple customer model
code:

class Customer < ActiveRecord::Base
        belongs_to :subscriber

        validates_confirmation_of :password
end

Here is part of the view where I'm asking for a password and password
confirmation:

<p><label for="customer_password">Password</label><br/>
<%= password_field 'customer', 'password' %></p>

<p><label for="customer_password">Confirm Password</label><br/>
<%= password_field 'password_confirmation', '' %></p>

However, even if the passwords don't match, the script allows me to
submit and save the customer. What is missing from the above?

Thanks, - Dave

<p><label for="customer_password">Password</label><br/>
<%= password_field 'customer', 'password' %></p>

<p><label for="customer_password">Confirm Password</label><br/>
<%= password_field 'password_confirmation', '' %></p>

The second password_field looks bogus, check out the example at:
http://www.railsapi.org/validates_confirmation_of

Thanks, but I guess because of my beginner-ness, I'm still confused.
What should the second password_field look like in order to not be
bogus? The link you sent doesn't have an example of what it should
look like on the view end.

- Dave