function preload_images() {
image1b = new Image();
image1b.src = '/template/button1b.png';
image1c = new Image();
image1c.src = '/template/button1c.png';
image2b = new Image();
image2b.src = '/template/button2b.png';
image2c = new Image();
image2c.src = '/template/button2c.png';
image3b = new Image();
image3b.src = '/template/button3b.png';
image3c = new Image();
image3c.src = '/template/button3c.png';
image4b = new Image();
image4b.src = '/template/button4b.png';
image4c = new Image();
image4c.src = '/template/button4c.png';
image5b = new Image();
image5b.src = '/template/button5b.png';
image5c = new Image();
image5c.src = '/template/button5c.png';
}


setTimeout('preload_images()', 1000);

function menu_hover(option) {
  document['title'].src = '/template/button' + option + 'c.png';
  document[option].src = '/template/button' + option + 'b.png';
}

function menu_out(option) {
  document['title'].src = '/template/blank.png';
  document[option].src = '/template/button' + option + 'a.png';
}

function menu_display(option) {
  if (option < 1) option = 1;
  if (option > 1) menu_out(option - 1);
  if (option > 5) option = 1;
  if (display == true) {
    menu_hover(option);
    next_option = option + 1;
    setTimeout('menu_display(' + next_option + ')', 500);
  }
}