function show_cat(id, type) {
  if (type == 6) {
    for (i=0; i<cat_count[4]; i++) {
      var type6 = cat_id[4][i];
      for (cat6_i=0; cat6_i<cat_count[type6]; cat6_i++) {
        if (id == cat_id[type6][cat6_i]) {
          document.write(cat_name[type6][cat6_i]);
          break;
        }
      }
    }
	return;
  }
  if (type == 'cosmetic') {
    for (i=0; i<cat_count[cosmetic]; i++) {
      var cosmetic_id = cat_id[cosmetic][i];
      for (j=0; j<cat_count[cosmetic_id]; j++) {
        if (id == cat_id[cosmetic_id][j]) {
          document.write(cat_name[cosmetic_id][j]);
          break;
        }
      }
    }
	return;
  }
  for (cat_i=0; cat_i<cat_count[type]; cat_i++) {
    if (id == cat_id[type][cat_i]) document.write(cat_name[type][cat_i]);
  }
}