function newImage(arg) {
  if (document.images) {
    rslt = new Image();
    rslt.src = arg;
    return rslt;
  }
}

function changeImages() {
  if (document.images && (preloadFlag == true)) {
    for (var i=0; i<changeImages.arguments.length; i+=2) {
      document[changeImages.arguments[i]].src = changeImages.arguments[i+1];
    }
  }
}

var preloadFlag = false;
function preloadImages() {
  if (document.images) {
    home_over = newImage('images/m_home2.jpg');
    products_over = newImage('images/m_products2.jpg');
    wholesale_over = newImage('images/m_wholesale2.jpg');
    testimonials_over = newImage('images/m_testimonials2.jpg');
    wheretobuy_over = newImage('images/m_wheretobuy2.jpg');
    contact_over = newImage('images/m_contact2.jpg');
    faqs_over = newImage('images/m_faqs2.jpg');
    press_over = newImage('images/m_press2.jpg');
    preloadFlag = true;
  }
}