module ApplicationHelper

def save_model_button(model, options = {})
  model_name = model.class.name.underscore
  human_model_name = model_name.humanize.titlecase
  options[:label] ||= model.new_record? ?
    t('buttons.create', :name => t(model_name, :default => human_model_name), :default => 'Create ' + human_model_name) :
    t('buttons.save_changes', :default => 'Save Changes')
  options[:class] ||= "button"
  options[:accesskey] ||= 'S'
  submit_tag options.delete(:label), options
end