window.onload = function()
{
  random_img('random_img', random_images);
  MM_preloadImages(
    'images/nav/btn_product.png',
    'images/nav/btn_faq_f2.png',
    'images/nav/btn_contact_f2.png',
    'images/nav/btn_home_f2.png',
    'images/about/btn_company.png',
    'images/about/btn_why_f2.png'
  );
};

random_images = [
  'images/about/img_bark.png',
  'images/about/img_daisy.png',
  'images/about/img_leaves.png',
  'images/about/img_thorns.png',
];