if (document.images) {
  gearOn = new Image();
  gearOn.src = "/sbr_reviews/buttons/sbr_reviews_gear_hi.gif";
  gearOn.msg = "gear";
  gearOff = new Image();
  gearOff.src = "/sbr_reviews/buttons/sbr_reviews_gear_lo.gif";

  helmetsOn = new Image();
  helmetsOn.src = "/sbr_reviews/buttons/sbr_reviews_helmets_hi.gif";
  helmetsOn.msg = "helmets";
  helmetsOff = new Image();
  helmetsOff.src = "/sbr_reviews/buttons/sbr_reviews_helmets_lo.gif";

  accessoriesOn = new Image();
  accessoriesOn.src = "/sbr_reviews/buttons/sbr_reviews_accessories_hi.gif";
  accessoriesOn.msg = "accessories";
  accessoriesOff = new Image();
  accessoriesOff.src = "/sbr_reviews/buttons/sbr_reviews_accessories_lo.gif";

  performanceOn = new Image();
  performanceOn.src = "/sbr_reviews/buttons/sbr_reviews_performance_hi.gif";
  performanceOn.msg = "performance";
  performanceOff = new Image();
  performanceOff.src = "/sbr_reviews/buttons/sbr_reviews_performance_lo.gif";

  tiresOn = new Image();
  tiresOn.src = "/sbr_reviews/buttons/sbr_reviews_tires_hi.gif";
  tiresOn.msg = "tires";
  tiresOff = new Image();
  tiresOff.src = "/sbr_reviews/buttons/sbr_reviews_tires_lo.gif";
}