app/views/spree/checkout/payment/paymill/_form.html.erb
<div id="creditcards" data-hook="<%= "#{payment_method.id}" %>">
<span class="card">
<%= image_tag 'credit_cards/icons/visa.png', :id => 'visa-credit-card-image' %>
</span>
<span class="card">
<%= image_tag 'credit_cards/icons/master.png', :id => 'mastercard-credit-card-image' %>
</span>
</div>
<div id="creditcard_type_error"><%= t(:credit_card_type_not_supported) %></div>
<% param_prefix = "payment_source[#{payment_method.id}]" %>
<p class="field" data-hook="card_number">
<%= label_tag nil, t(:card_number) %>
<span class="required">*</span><br />
<% options_hash = Rails.env.production? ? {:autocomplete => 'off'} : {} %>
<%= text_field_tag "#{param_prefix}[number]", '', options_hash.merge(:id => 'card_number', :class => 'required', :size => 19, :maxlength => 19, :autocomplete => "off") %>
<span id="card_type" style="display:none;">
( <span id="looks_like" ><%= t(:card_type_is) %> <span id="type"></span></span>
<span id="unrecognized"><%= t(:unrecognized_card_type) %></span>
)
</span>
</p>
<p class="field" data-hook="card_expiration">
<%= label_tag nil, t(:expiration) %>
<span class="required">*</span><br />
<%= select_month(Date.today, :prefix => param_prefix, :field_name => 'month', :use_month_numbers => true, :class => 'required') %>
<%= select_year(Date.today, :prefix => param_prefix, :field_name => 'year', :start_year => Date.today.year, :end_year => Date.today.year + 15, :class => 'required') %>
</p>
<p class="field" data-hook="card_code">
<%= label_tag nil, t(:card_code) %>
<span class="required">*</span><br />
<%= text_field_tag "#{param_prefix}[verification_value]", '', options_hash.merge(:id => 'card_code', :class => 'required', :size => 5) %>
<%= link_to "(#{t(:whats_this)})", spree.content_path('cvv'), :target => '_blank', :onclick => "window.open(this.href,'cvv_info','left=20,top=20,width=500,height=500,toolbar=0,resizable=0,scrollbars=1');return false", "data-hook" => "cvv_link" %>
</p>
<%= hidden_field param_prefix, 'first_name', :value => @order.billing_firstname %>
<%= hidden_field param_prefix, 'last_name', :value => @order.billing_lastname %>