anchor.diff:        <p>
           <%= form.label :contacts_date_of_birth, Spree::Supplier.human_attribute_name(:contacts_date_of_birth) %>
           <span class="required">*</span><br />
  -        <%= form.text_field :contacts_date_of_birth, :class => 'datepicker' %>
  +        <%= form.text_field :contacts_date_of_birth, :class => 'datepicker required' %>
         </p>
         <p>
           <%= form.label :merchant_type, Spree::Supplier.human_attribute_name(:merchant_type) %>
           <span class="required">*</span><br />
  -        <%= form.select :merchant_type, [[t(:individual), 'individual'], [t(:business), 'business']], :class => 'select2' %>
  +        <%= form.select :merchant_type, [[t(:individual), 'individual'], [t(:business), 'business']], :class => 'required select2' %>
         </p>
         <p id="supplier_tax_id_field">
  -        <%= form.label :tax_id, Spree::Supplier.human_attribute_name(:tax_id) %><br />
  -        <%= form.text_field :tax_id, :class => 'text' %>
  +        <%= form.label :tax_id, Spree::Supplier.human_attribute_name(:tax_id) %>
  +        <span class="required">*</span><br />
  +        <%= form.text_field :tax_id, :class => 'required text' %>
         </p>
       </fieldset>
       <p class="form-buttons">
  
positive.code:       <p>
          <%= form.label :email, Spree::Supplier.human_attribute_name(:email) %>
          <span class="required">*</span><br />
          <%= form.email_field :email, :value => current_user.email, :class => 'text' %>
        </p>
        <%= form.fields_for :address do |address_form| %>
          <legend align="center"><%= t(:contact_address) %></legend>
  
negative.code:       <p>
          <%= form.label :name, Spree::Supplier.human_attribute_name(:name) %>
          <span class="required">*</span><br />
          <%= form.text_field :name, :class => 'required title' %>
        </p>
        <p>
          <%= form.label :url, Spree::Supplier.human_attribute_name(:url) %><br />
  