(function($) {
  var cache = [];
  // Arguments are image paths relative to the current page.
  $.preLoadImages = function() {
    var args_len = arguments.length;
    for (var i = args_len; i--;) {
      var cacheImage = document.createElement('img');
      cacheImage.src = arguments[i];
      cache.push(cacheImage);
    }
  }
})(jQuery)
$(document).ready(function(){
jQuery.preLoadImages("images/nav_off.jpg", "images/nav_about_on.jpg", "images/nav_learn_on.jpg", "images/nav_products_on.jpg", "images/nav_services_on.jpg", "images/product_menu_color_on.gif", "images/product_menu_detail_on.gif", "images/product_menu_feature_on.gif", "images/product_menu_glass_on.gif", "images/product_menu_grille_on.gif", "images/product_menu_hardware_on.gif", "images/product_menu_performance_on.gif");
});