SITE = {
  basepath : "/",
  preloader : {
    loadedImages: [],
    load: function(url) {
      var img = new Image(),
          imgs = this.loadedImages;
      img.src = url;
      imgs[imgs.length] = img;
    }
  }
};

jQuery(function($) {
  var $li5 = $("#right_menu .li5");
  if ($li5.length > 0) {
    $.get("/button_link.html", function(btn) { /\S/.test(btn) && $li5.html(btn); });
  }

  $("img.roll")
    .each(function() {
      this.originalSrc = $(this).attr("src");
      this.rolloverSrc = this.originalSrc.replace(/(?=\.(?:gif|jpe?g|png)$)/, "_on");
      SITE.preloader.load(this.rolloverSrc);
    })
    .not($(".rollgroup .roll, .current .roll"))
      .hover(function() {
        $(this).attr("src", this.rolloverSrc);
      }, function() {
        $(this).attr("src", this.originalSrc);
      });
});