(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)

jQuery.preLoadImages("images/nav01over.gif", "images/nav02over.gif", "images/nav03over.gif", "images/nav04over.gif", "images/nav05over.gif","images/nav06over.gif","images/nav07over.gif","images/nav01.gif", "images/nav02.gif", "images/nav03.gif", "images/nav04.gif", "images/nav05.gif","images/nav06.gif","images/nav07.gif");