function el_next_image () {
  Effect.Fade('el_img'+el_num,{ duration:0.7});
    if (el_num == el_total) { 
      el_num=1;
      } else {
        el_num++;
      }
  Effect.Appear('el_img'+el_num,{ duration:0.7}); 
}
function fp_next_image () {
  Effect.Fade('fp_img'+fp_num,{ duration:0.7});
    if (fp_num == fp_total) { 
      fp_num=1;
      } else {
        fp_num++;
      }
  Effect.Appear('fp_img'+fp_num,{ duration:0.7}); 
}
function map_next_image (show_num) {
  if(show_num==map_num) return false;
  Effect.Fade('map_img'+map_num,{ duration:0.7});
  Effect.Appear('map_img'+show_num,{ duration:0.7}); 
  map_num = show_num;
}