window.onload = function()
{
  random_img('img_random', random_images);
  MM_preloadImages(
    'images/nav/btn_about_f2.png',
    'images/nav/btn_product.png',
    'images/nav/btn_faq_f2.png',
    'images/nav/btn_home_f2.png',
    'images/contact/copy_f2.png',
    'images/contact/copy_2_f2.png'
  );
};

random_images = [
  'images/contact/img_building.png',
  'images/contact/img_vials.png'
];