if (document.images) {

   blank = new Image;
   bed = new Image;
   kit = new Image;
   mess = new Image;
   estate = new Image;
   moving = new Image;
   blank.src = "pix_frt_closet.jpg";
   bed.src = "pix_frt_bedroom.jpg";
   kit.src = "pix_frt_kit001.jpg";
   mess.src = "pix_clutter.jpg";
   estate.src = "pix_frt_estate.jpg";
   moving.src = "pix_frt_moving.jpg";
   
}

function flipImg(field, imgName) {
  if (document.images) {
      document[field].src = eval(imgName + ".src");
  }
}